From 6c75f07aff6588b0000edc5085b51f4976f81298 Mon Sep 17 00:00:00 2001
From: Marc Di Luzio <marc.diluzio@gmail.com>
Date: Tue, 21 Jul 2020 22:48:16 +0100
Subject: [PATCH 01/13] Remove move and recharge commands in favor of toggle
 command for the sails

---
 cmd/rove-server/internal/routes.go |  10 -
 cmd/rove/main.go                   |  18 +-
 cmd/rove/main_test.go              |   4 +-
 pkg/rove/command.go                |   3 -
 pkg/rove/command_test.go           |  81 ++------
 pkg/rove/world.go                  |  19 +-
 proto/roveapi/roveapi.pb.go        | 300 +++++++++++++----------------
 proto/roveapi/roveapi.proto        |  14 +-
 8 files changed, 169 insertions(+), 280 deletions(-)

diff --git a/cmd/rove-server/internal/routes.go b/cmd/rove-server/internal/routes.go
index 0fb41d8..393bf93 100644
--- a/cmd/rove-server/internal/routes.go
+++ b/cmd/rove-server/internal/routes.go
@@ -83,10 +83,6 @@ func (s *Server) Status(ctx context.Context, req *roveapi.StatusRequest) (respon
 				Command: i.Command,
 			}
 			switch i.Command {
-			case roveapi.CommandType_move:
-				c.Data = &roveapi.Command_Bearing{
-					Bearing: i.Bearing,
-				}
 			case roveapi.CommandType_broadcast:
 				c.Data = &roveapi.Command_Message{
 					Message: i.Message,
@@ -99,10 +95,6 @@ func (s *Server) Status(ctx context.Context, req *roveapi.StatusRequest) (respon
 				Command: q.Command,
 			}
 			switch q.Command {
-			case roveapi.CommandType_move:
-				c.Data = &roveapi.Command_Bearing{
-					Bearing: q.Bearing,
-				}
 			case roveapi.CommandType_broadcast:
 				c.Data = &roveapi.Command_Message{
 					Message: q.Message,
@@ -193,8 +185,6 @@ func (s *Server) Command(ctx context.Context, req *roveapi.CommandRequest) (*rov
 			Command: c.Command,
 		}
 		switch c.Command {
-		case roveapi.CommandType_move:
-			n.Bearing = c.GetBearing()
 		case roveapi.CommandType_broadcast:
 			n.Message = c.GetMessage()
 		}
diff --git a/cmd/rove/main.go b/cmd/rove/main.go
index bd98d52..8d94106 100644
--- a/cmd/rove/main.go
+++ b/cmd/rove/main.go
@@ -33,10 +33,9 @@ func printUsage() {
 	fmt.Fprintln(os.Stderr, "\thelp                       outputs this usage information")
 	fmt.Fprintln(os.Stderr, "\tversion                    outputs version info")
 	fmt.Fprintln(os.Stderr, "\nRover commands:")
-	fmt.Fprintln(os.Stderr, "\tmove BEARING               moves the rover in the chosen direction")
+	fmt.Fprintln(os.Stderr, "\ttoggle                     toggles the sails, either catching the wind, or charging from the sun")
 	fmt.Fprintln(os.Stderr, "\tstash                      stores the object at the rover location in the inventory")
 	fmt.Fprintln(os.Stderr, "\trepair                     uses an inventory object to repair the rover")
-	fmt.Fprintln(os.Stderr, "\trecharge                   wait a tick to recharge the rover")
 	fmt.Fprintln(os.Stderr, "\tbroadcast MSG              broadcast a simple ASCII triplet to nearby rovers")
 	fmt.Fprintln(os.Stderr, "\nEnvironment")
 	fmt.Fprintln(os.Stderr, "\tROVE_USER_DATA             path to user data, defaults to "+defaultDataPath)
@@ -225,21 +224,6 @@ func InnerMain(command string, args ...string) error {
 		var commands []*roveapi.Command
 		for i := 0; i < len(args); i++ {
 			switch args[i] {
-			case "move":
-				i++
-				if len(args) == i {
-					return fmt.Errorf("move command must be passed bearing")
-				}
-				var b roveapi.Bearing
-				if b = BearingFromString(args[i]); b == roveapi.Bearing_BearingUnknown {
-					return fmt.Errorf("unrecognised bearing: %s", args[i])
-				}
-				commands = append(commands,
-					&roveapi.Command{
-						Command: roveapi.CommandType_move,
-						Data:    &roveapi.Command_Bearing{Bearing: b},
-					},
-				)
 			case "broadcast":
 				i++
 				if len(args) == i {
diff --git a/cmd/rove/main_test.go b/cmd/rove/main_test.go
index dd588e1..2eb564c 100644
--- a/cmd/rove/main_test.go
+++ b/cmd/rove/main_test.go
@@ -50,12 +50,12 @@ func Test_InnerMain(t *testing.T) {
 	assert.Error(t, InnerMain("command"))
 
 	// Give it commands
-	assert.NoError(t, InnerMain("command", "move", "N"))
+	assert.NoError(t, InnerMain("command", "toggle"))
 	assert.NoError(t, InnerMain("command", "stash"))
 	assert.NoError(t, InnerMain("command", "repair"))
 	assert.NoError(t, InnerMain("command", "broadcast", "abc"))
 
 	// Give it malformed commands
-	assert.Error(t, InnerMain("command", "move", "stash"))
+	assert.Error(t, InnerMain("command", "unknown"))
 	assert.Error(t, InnerMain("command", "broadcast"))
 }
diff --git a/pkg/rove/command.go b/pkg/rove/command.go
index e64d646..df49bea 100644
--- a/pkg/rove/command.go
+++ b/pkg/rove/command.go
@@ -6,9 +6,6 @@ import "github.com/mdiluz/rove/proto/roveapi"
 type Command struct {
 	Command roveapi.CommandType `json:"command"`
 
-	// Used in the move command
-	Bearing roveapi.Bearing `json:"bearing,omitempty"`
-
 	// Used in the broadcast command
 	Message []byte `json:"message,omitempty"`
 }
diff --git a/pkg/rove/command_test.go b/pkg/rove/command_test.go
index 337782f..7506cd6 100644
--- a/pkg/rove/command_test.go
+++ b/pkg/rove/command_test.go
@@ -2,69 +2,28 @@ package rove
 
 import (
 	"testing"
-
-	"github.com/mdiluz/rove/pkg/maths"
-	"github.com/mdiluz/rove/proto/roveapi"
-	"github.com/stretchr/testify/assert"
 )
 
-func TestCommand_Move(t *testing.T) {
-	world := NewWorld(8)
-	a, err := world.SpawnRover()
-	assert.NoError(t, err)
-	pos := maths.Vector{
-		X: 1.0,
-		Y: 2.0,
-	}
-
-	err = world.WarpRover(a, pos)
-	assert.NoError(t, err, "Failed to set position for rover")
-
-	// Try the move command
-	moveCommand := Command{Command: roveapi.CommandType_move, Bearing: roveapi.Bearing_North}
-	assert.NoError(t, world.Enqueue(a, moveCommand), "Failed to execute move command")
-
-	// Tick the world
-	world.EnqueueAllIncoming()
-	world.ExecuteCommandQueues()
-
-	newPos, err := world.RoverPosition(a)
-	assert.NoError(t, err, "Failed to set position for rover")
-	pos.Add(maths.Vector{X: 0.0, Y: 1})
-	assert.Equal(t, pos, newPos, "Failed to correctly set position for rover")
+func TestCommand_Raise(t *testing.T) {
+	// TODO: Test the raise command
 }
 
-func TestCommand_Recharge(t *testing.T) {
-	world := NewWorld(8)
-	a, err := world.SpawnRover()
-	assert.NoError(t, err)
-	pos := maths.Vector{
-		X: 1.0,
-		Y: 2.0,
-	}
-
-	err = world.WarpRover(a, pos)
-	assert.NoError(t, err, "Failed to set position for rover")
-
-	// Move to use up some charge
-	moveCommand := Command{Command: roveapi.CommandType_move, Bearing: roveapi.Bearing_North}
-	assert.NoError(t, world.Enqueue(a, moveCommand), "Failed to queue move command")
-
-	// Tick the world
-	world.EnqueueAllIncoming()
-	world.ExecuteCommandQueues()
-
-	rover, _ := world.GetRover(a)
-	assert.Equal(t, rover.MaximumCharge-1, rover.Charge)
-
-	chargeCommand := Command{Command: roveapi.CommandType_recharge}
-	assert.NoError(t, world.Enqueue(a, chargeCommand), "Failed to queue recharge command")
-
-	// Tick the world
-	world.EnqueueAllIncoming()
-	world.ExecuteCommandQueues()
-
-	rover, _ = world.GetRover(a)
-	assert.Equal(t, rover.MaximumCharge, rover.Charge)
-
+func TestCommand_Lower(t *testing.T) {
+	// TODO: Test the lower command
+}
+
+func TestCommand_Stash(t *testing.T) {
+	// TODO: Test the stash command
+}
+
+func TestCommand_Repair(t *testing.T) {
+	// TODO: Test the repair command
+}
+
+func TestCommand_Broadcast(t *testing.T) {
+	// TODO: Test the stash command
+}
+
+func TestCommand_Invalid(t *testing.T) {
+	// TODO: Test the invalid command
 }
diff --git a/pkg/rove/world.go b/pkg/rove/world.go
index 25aa933..6658417 100644
--- a/pkg/rove/world.go
+++ b/pkg/rove/world.go
@@ -380,10 +380,6 @@ func (w *World) Enqueue(rover string, commands ...Command) error {
 	// First validate the commands
 	for _, c := range commands {
 		switch c.Command {
-		case roveapi.CommandType_move:
-			if c.Bearing == roveapi.Bearing_BearingUnknown {
-				return fmt.Errorf("bearing must be valid")
-			}
 		case roveapi.CommandType_broadcast:
 			if len(c.Message) > 3 {
 				return fmt.Errorf("too many characters in message (limit 3): %d", len(c.Message))
@@ -393,9 +389,9 @@ func (w *World) Enqueue(rover string, commands ...Command) error {
 					return fmt.Errorf("invalid message character: %c", b)
 				}
 			}
+		case roveapi.CommandType_toggle:
 		case roveapi.CommandType_stash:
 		case roveapi.CommandType_repair:
-		case roveapi.CommandType_recharge:
 			// Nothing to verify
 		default:
 			return fmt.Errorf("unknown command: %s", c.Command)
@@ -459,10 +455,8 @@ func (w *World) ExecuteCommand(c *Command, rover string) (err error) {
 	log.Printf("Executing command: %+v for %s\n", *c, rover)
 
 	switch c.Command {
-	case roveapi.CommandType_move:
-		if _, err := w.MoveRover(rover, c.Bearing); err != nil {
-			return err
-		}
+	case roveapi.CommandType_toggle:
+		// TODO: Toggle the sails
 
 	case roveapi.CommandType_stash:
 		if _, err := w.RoverStash(rover); err != nil {
@@ -481,15 +475,12 @@ func (w *World) ExecuteCommand(c *Command, rover string) (err error) {
 			r.AddLogEntryf("repaired self to %d", r.Integrity)
 			w.Rovers[rover] = r
 		}
-	case roveapi.CommandType_recharge:
-		_, err := w.RoverRecharge(rover)
-		if err != nil {
-			return err
-		}
+
 	case roveapi.CommandType_broadcast:
 		if err := w.RoverBroadcast(rover, c.Message); err != nil {
 			return err
 		}
+
 	default:
 		return fmt.Errorf("unknown command: %s", c.Command)
 	}
diff --git a/proto/roveapi/roveapi.pb.go b/proto/roveapi/roveapi.pb.go
index 783325f..3bd9665 100644
--- a/proto/roveapi/roveapi.pb.go
+++ b/proto/roveapi/roveapi.pb.go
@@ -39,35 +39,31 @@ type CommandType int32
 
 const (
 	CommandType_none CommandType = 0
-	// Move the rover in a direction, requires bearing
-	CommandType_move CommandType = 1
+	// Toggles the sails, either catching the wind, or charging from the sun
+	CommandType_toggle CommandType = 1
 	// Stashes item at current location in rover inventory
 	CommandType_stash CommandType = 2
 	// Repairs the rover using an inventory object
 	CommandType_repair CommandType = 3
-	// Waits a tick to add more charge to the rover
-	CommandType_recharge CommandType = 4
 	// Broadcasts a message to nearby rovers
-	CommandType_broadcast CommandType = 5
+	CommandType_broadcast CommandType = 4
 )
 
 // Enum value maps for CommandType.
 var (
 	CommandType_name = map[int32]string{
 		0: "none",
-		1: "move",
+		1: "toggle",
 		2: "stash",
 		3: "repair",
-		4: "recharge",
-		5: "broadcast",
+		4: "broadcast",
 	}
 	CommandType_value = map[string]int32{
 		"none":      0,
-		"move":      1,
+		"toggle":    1,
 		"stash":     2,
 		"repair":    3,
-		"recharge":  4,
-		"broadcast": 5,
+		"broadcast": 4,
 	}
 )
 
@@ -560,7 +556,6 @@ type Command struct {
 	// The command type
 	Command CommandType `protobuf:"varint,1,opt,name=command,proto3,enum=roveapi.CommandType" json:"command,omitempty"`
 	// Types that are assignable to Data:
-	//	*Command_Bearing
 	//	*Command_Message
 	Data isCommand_Data `protobuf_oneof:"data"`
 }
@@ -611,13 +606,6 @@ func (m *Command) GetData() isCommand_Data {
 	return nil
 }
 
-func (x *Command) GetBearing() Bearing {
-	if x, ok := x.GetData().(*Command_Bearing); ok {
-		return x.Bearing
-	}
-	return Bearing_BearingUnknown
-}
-
 func (x *Command) GetMessage() []byte {
 	if x, ok := x.GetData().(*Command_Message); ok {
 		return x.Message
@@ -629,21 +617,13 @@ type isCommand_Data interface {
 	isCommand_Data()
 }
 
-type Command_Bearing struct {
-	// A bearing
-	// Used with MOVE
-	Bearing Bearing `protobuf:"varint,2,opt,name=bearing,proto3,enum=roveapi.Bearing,oneof"`
-}
-
 type Command_Message struct {
 	// A simple message, must be composed of printable ASCII glyphs (32-126)
 	// maximum of three characters
 	// Used with BROADCAST
-	Message []byte `protobuf:"bytes,3,opt,name=message,proto3,oneof"`
+	Message []byte `protobuf:"bytes,2,opt,name=message,proto3,oneof"`
 }
 
-func (*Command_Bearing) isCommand_Data() {}
-
 func (*Command_Message) isCommand_Data() {}
 
 // CommandRequest describes a set of commands to be requested for the rover
@@ -1197,116 +1177,112 @@ var file_roveapi_roveapi_proto_rawDesc = []byte{
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 }
 
 var (
@@ -1346,32 +1322,31 @@ var file_roveapi_roveapi_proto_goTypes = []interface{}{
 var file_roveapi_roveapi_proto_depIdxs = []int32{
 	7,  // 0: roveapi.RegisterResponse.account:type_name -> roveapi.Account
 	0,  // 1: roveapi.Command.command:type_name -> roveapi.CommandType
-	1,  // 2: roveapi.Command.bearing:type_name -> roveapi.Bearing
-	7,  // 3: roveapi.CommandRequest.account:type_name -> roveapi.Account
-	9,  // 4: roveapi.CommandRequest.commands:type_name -> roveapi.Command
-	7,  // 5: roveapi.RadarRequest.account:type_name -> roveapi.Account
-	3,  // 6: roveapi.RadarResponse.tiles:type_name -> roveapi.Tile
-	2,  // 7: roveapi.RadarResponse.objects:type_name -> roveapi.Object
-	7,  // 8: roveapi.StatusRequest.account:type_name -> roveapi.Account
-	16, // 9: roveapi.StatusResponse.position:type_name -> roveapi.Vector
-	9,  // 10: roveapi.StatusResponse.incomingCommands:type_name -> roveapi.Command
-	9,  // 11: roveapi.StatusResponse.queuedCommands:type_name -> roveapi.Command
-	15, // 12: roveapi.StatusResponse.logs:type_name -> roveapi.Log
-	4,  // 13: roveapi.Rove.ServerStatus:input_type -> roveapi.ServerStatusRequest
-	6,  // 14: roveapi.Rove.Register:input_type -> roveapi.RegisterRequest
-	10, // 15: roveapi.Rove.Command:input_type -> roveapi.CommandRequest
-	12, // 16: roveapi.Rove.Radar:input_type -> roveapi.RadarRequest
-	14, // 17: roveapi.Rove.Status:input_type -> roveapi.StatusRequest
-	5,  // 18: roveapi.Rove.ServerStatus:output_type -> roveapi.ServerStatusResponse
-	8,  // 19: roveapi.Rove.Register:output_type -> roveapi.RegisterResponse
-	11, // 20: roveapi.Rove.Command:output_type -> roveapi.CommandResponse
-	13, // 21: roveapi.Rove.Radar:output_type -> roveapi.RadarResponse
-	17, // 22: roveapi.Rove.Status:output_type -> roveapi.StatusResponse
-	18, // [18:23] is the sub-list for method output_type
-	13, // [13:18] is the sub-list for method input_type
-	13, // [13:13] is the sub-list for extension type_name
-	13, // [13:13] is the sub-list for extension extendee
-	0,  // [0:13] is the sub-list for field type_name
+	7,  // 2: roveapi.CommandRequest.account:type_name -> roveapi.Account
+	9,  // 3: roveapi.CommandRequest.commands:type_name -> roveapi.Command
+	7,  // 4: roveapi.RadarRequest.account:type_name -> roveapi.Account
+	3,  // 5: roveapi.RadarResponse.tiles:type_name -> roveapi.Tile
+	2,  // 6: roveapi.RadarResponse.objects:type_name -> roveapi.Object
+	7,  // 7: roveapi.StatusRequest.account:type_name -> roveapi.Account
+	16, // 8: roveapi.StatusResponse.position:type_name -> roveapi.Vector
+	9,  // 9: roveapi.StatusResponse.incomingCommands:type_name -> roveapi.Command
+	9,  // 10: roveapi.StatusResponse.queuedCommands:type_name -> roveapi.Command
+	15, // 11: roveapi.StatusResponse.logs:type_name -> roveapi.Log
+	4,  // 12: roveapi.Rove.ServerStatus:input_type -> roveapi.ServerStatusRequest
+	6,  // 13: roveapi.Rove.Register:input_type -> roveapi.RegisterRequest
+	10, // 14: roveapi.Rove.Command:input_type -> roveapi.CommandRequest
+	12, // 15: roveapi.Rove.Radar:input_type -> roveapi.RadarRequest
+	14, // 16: roveapi.Rove.Status:input_type -> roveapi.StatusRequest
+	5,  // 17: roveapi.Rove.ServerStatus:output_type -> roveapi.ServerStatusResponse
+	8,  // 18: roveapi.Rove.Register:output_type -> roveapi.RegisterResponse
+	11, // 19: roveapi.Rove.Command:output_type -> roveapi.CommandResponse
+	13, // 20: roveapi.Rove.Radar:output_type -> roveapi.RadarResponse
+	17, // 21: roveapi.Rove.Status:output_type -> roveapi.StatusResponse
+	17, // [17:22] is the sub-list for method output_type
+	12, // [12:17] is the sub-list for method input_type
+	12, // [12:12] is the sub-list for extension type_name
+	12, // [12:12] is the sub-list for extension extendee
+	0,  // [0:12] is the sub-list for field type_name
 }
 
 func init() { file_roveapi_roveapi_proto_init() }
@@ -1550,7 +1525,6 @@ func file_roveapi_roveapi_proto_init() {
 		}
 	}
 	file_roveapi_roveapi_proto_msgTypes[5].OneofWrappers = []interface{}{
-		(*Command_Bearing)(nil),
 		(*Command_Message)(nil),
 	}
 	type x struct{}
diff --git a/proto/roveapi/roveapi.proto b/proto/roveapi/roveapi.proto
index 566bcfd..96c4609 100644
--- a/proto/roveapi/roveapi.proto
+++ b/proto/roveapi/roveapi.proto
@@ -89,16 +89,14 @@ message RegisterResponse {
 // CommandType defines the type of a command to give to the rover
 enum CommandType {
   none = 0;
-  // Move the rover in a direction, requires bearing
-  move = 1;
+  // Toggles the sails, either catching the wind, or charging from the sun
+  toggle = 1;
   // Stashes item at current location in rover inventory
   stash = 2;
   // Repairs the rover using an inventory object
   repair = 3;
-  // Waits a tick to add more charge to the rover
-  recharge = 4;
   // Broadcasts a message to nearby rovers
-  broadcast = 5;
+  broadcast = 4;
 }
 
 enum Bearing {
@@ -116,14 +114,10 @@ message Command {
   CommandType command = 1;
 
   oneof data {
-    // A bearing
-    // Used with MOVE
-    Bearing bearing = 2;
-
     // A simple message, must be composed of printable ASCII glyphs (32-126)
     // maximum of three characters
     // Used with BROADCAST
-    bytes message = 3;
+    bytes message = 2;
   }
 }
 

From 6f30b665c746a87ac7a796e2938e1776263aee3d Mon Sep 17 00:00:00 2001
From: Marc Di Luzio <marc.diluzio@gmail.com>
Date: Tue, 21 Jul 2020 22:58:59 +0100
Subject: [PATCH 02/13] Make the bearings 8 directional

---
 proto/roveapi/roveapi.pb.go | 113 +++++++++++++++++++++---------------
 proto/roveapi/roveapi.proto |  11 +++-
 2 files changed, 73 insertions(+), 51 deletions(-)

diff --git a/proto/roveapi/roveapi.pb.go b/proto/roveapi/roveapi.pb.go
index 3bd9665..9717407 100644
--- a/proto/roveapi/roveapi.pb.go
+++ b/proto/roveapi/roveapi.pb.go
@@ -94,15 +94,20 @@ func (CommandType) EnumDescriptor() ([]byte, []int) {
 	return file_roveapi_roveapi_proto_rawDescGZIP(), []int{0}
 }
 
+// Bearing represents a compass direction
 type Bearing int32
 
 const (
 	// BearingUnknown an unknown invalid bearing
 	Bearing_BearingUnknown Bearing = 0
 	Bearing_North          Bearing = 1
-	Bearing_East           Bearing = 2
-	Bearing_South          Bearing = 3
-	Bearing_West           Bearing = 4
+	Bearing_NorthEast      Bearing = 2
+	Bearing_East           Bearing = 3
+	Bearing_SouthEast      Bearing = 4
+	Bearing_South          Bearing = 5
+	Bearing_SouthWest      Bearing = 6
+	Bearing_West           Bearing = 7
+	Bearing_NorthWest      Bearing = 8
 )
 
 // Enum value maps for Bearing.
@@ -110,16 +115,24 @@ var (
 	Bearing_name = map[int32]string{
 		0: "BearingUnknown",
 		1: "North",
-		2: "East",
-		3: "South",
-		4: "West",
+		2: "NorthEast",
+		3: "East",
+		4: "SouthEast",
+		5: "South",
+		6: "SouthWest",
+		7: "West",
+		8: "NorthWest",
 	}
 	Bearing_value = map[string]int32{
 		"BearingUnknown": 0,
 		"North":          1,
-		"East":           2,
-		"South":          3,
-		"West":           4,
+		"NorthEast":      2,
+		"East":           3,
+		"SouthEast":      4,
+		"South":          5,
+		"SouthWest":      6,
+		"West":           7,
+		"NorthWest":      8,
 	}
 )
 
@@ -1244,45 +1257,49 @@ var file_roveapi_roveapi_proto_rawDesc = []byte{
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+	0x70, 0x69, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
diff --git a/proto/roveapi/roveapi.proto b/proto/roveapi/roveapi.proto
index 96c4609..033fcf3 100644
--- a/proto/roveapi/roveapi.proto
+++ b/proto/roveapi/roveapi.proto
@@ -99,13 +99,18 @@ enum CommandType {
   broadcast = 4;
 }
 
+// Bearing represents a compass direction
 enum Bearing {
   // BearingUnknown an unknown invalid bearing
   BearingUnknown = 0;
   North = 1;
-  East = 2;
-  South = 3;
-  West = 4;
+  NorthEast = 2;
+  East = 3;
+  SouthEast = 4;
+  South = 5;
+  SouthWest = 6;
+  West = 7;
+  NorthWest = 8;
 }
 
 // Command is a single command for a rover

From f78efd122384aea4da96915897ac466a8942017b Mon Sep 17 00:00:00 2001
From: Marc Di Luzio <marc.diluzio@gmail.com>
Date: Tue, 21 Jul 2020 23:12:50 +0100
Subject: [PATCH 03/13] Add SailPosition to the rover and implement toggle
 command

	This also converts the commands to use the proto type for simplicity
---
 cmd/rove-server/internal/routes.go |  45 +--
 cmd/rove/main.go                   |  25 +-
 pkg/maths/vector.go                |   8 +
 pkg/rove/command.go                |  14 -
 pkg/rove/command_test.go           |  43 ++-
 pkg/rove/rover.go                  |  11 +-
 pkg/rove/world.go                  |  92 +++++-
 pkg/rove/world_test.go             |   4 +-
 proto/roveapi/roveapi.pb.go        | 462 ++++++++++++++++++-----------
 proto/roveapi/roveapi.proto        |  53 +++-
 10 files changed, 490 insertions(+), 267 deletions(-)
 delete mode 100644 pkg/rove/command.go

diff --git a/cmd/rove-server/internal/routes.go b/cmd/rove-server/internal/routes.go
index 393bf93..19a5fef 100644
--- a/cmd/rove-server/internal/routes.go
+++ b/cmd/rove-server/internal/routes.go
@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"log"
 
-	"github.com/mdiluz/rove/pkg/rove"
 	"github.com/mdiluz/rove/pkg/version"
 	"github.com/mdiluz/rove/proto/roveapi"
 )
@@ -76,31 +75,13 @@ func (s *Server) Status(ctx context.Context, req *roveapi.StatusRequest) (respon
 			inv = append(inv, byte(i.Type))
 		}
 
-		i, q := s.world.RoverCommands(resp)
+		in, qu := s.world.RoverCommands(resp)
 		var incoming, queued []*roveapi.Command
-		for _, i := range i {
-			c := &roveapi.Command{
-				Command: i.Command,
-			}
-			switch i.Command {
-			case roveapi.CommandType_broadcast:
-				c.Data = &roveapi.Command_Message{
-					Message: i.Message,
-				}
-			}
-			incoming = append(incoming, c)
+		for i := range in {
+			incoming = append(incoming, &in[i])
 		}
-		for _, q := range q {
-			c := &roveapi.Command{
-				Command: q.Command,
-			}
-			switch q.Command {
-			case roveapi.CommandType_broadcast:
-				c.Data = &roveapi.Command_Message{
-					Message: q.Message,
-				}
-			}
-			queued = append(queued, c)
+		for i := range qu {
+			queued = append(queued, &qu[i])
 		}
 		var logs []*roveapi.Log
 		for _, log := range rover.Logs {
@@ -116,6 +97,7 @@ func (s *Server) Status(ctx context.Context, req *roveapi.StatusRequest) (respon
 				X: int32(rover.Pos.X),
 				Y: int32(rover.Pos.Y),
 			},
+			Bearing:          rover.Bearing,
 			Range:            int32(rover.Range),
 			Inventory:        inv,
 			Capacity:         int32(rover.Capacity),
@@ -125,6 +107,7 @@ func (s *Server) Status(ctx context.Context, req *roveapi.StatusRequest) (respon
 			MaximumCharge:    int32(rover.MaximumCharge),
 			IncomingCommands: incoming,
 			QueuedCommands:   queued,
+			SailPosition:     rover.SailPosition,
 			Logs:             logs,
 		}
 	}
@@ -179,19 +162,7 @@ func (s *Server) Command(ctx context.Context, req *roveapi.CommandRequest) (*rov
 		return nil, err
 	}
 
-	var cmds []rove.Command
-	for _, c := range req.Commands {
-		n := rove.Command{
-			Command: c.Command,
-		}
-		switch c.Command {
-		case roveapi.CommandType_broadcast:
-			n.Message = c.GetMessage()
-		}
-		cmds = append(cmds, n)
-	}
-
-	if err := s.world.Enqueue(resp, cmds...); err != nil {
+	if err := s.world.Enqueue(resp, req.Commands...); err != nil {
 		return nil, err
 	}
 
diff --git a/cmd/rove/main.go b/cmd/rove/main.go
index 8d94106..51038a7 100644
--- a/cmd/rove/main.go
+++ b/cmd/rove/main.go
@@ -127,12 +127,20 @@ func BearingFromString(s string) roveapi.Bearing {
 	switch s {
 	case "N":
 		return roveapi.Bearing_North
+	case "NE":
+		return roveapi.Bearing_NorthEast
 	case "E":
 		return roveapi.Bearing_East
+	case "SE":
+		return roveapi.Bearing_SouthEast
 	case "S":
 		return roveapi.Bearing_South
+	case "SW":
+		return roveapi.Bearing_SouthWest
 	case "W":
 		return roveapi.Bearing_West
+	case "NW":
+		return roveapi.Bearing_NorthWest
 	}
 	return roveapi.Bearing_BearingUnknown
 }
@@ -224,6 +232,21 @@ func InnerMain(command string, args ...string) error {
 		var commands []*roveapi.Command
 		for i := 0; i < len(args); i++ {
 			switch args[i] {
+			case "turn":
+				i++
+				if len(args) == i {
+					return fmt.Errorf("turn command must be passed a compass bearing")
+				}
+				b := BearingFromString(args[i])
+				if b == roveapi.Bearing_BearingUnknown {
+					return fmt.Errorf("turn command must be given a valid bearing %s", args[i])
+				}
+				commands = append(commands,
+					&roveapi.Command{
+						Command: roveapi.CommandType_broadcast,
+						Data:    &roveapi.Command_Broadcast{Broadcast: []byte(args[i])},
+					},
+				)
 			case "broadcast":
 				i++
 				if len(args) == i {
@@ -234,7 +257,7 @@ func InnerMain(command string, args ...string) error {
 				commands = append(commands,
 					&roveapi.Command{
 						Command: roveapi.CommandType_broadcast,
-						Data:    &roveapi.Command_Message{Message: []byte(args[i])},
+						Data:    &roveapi.Command_Broadcast{Broadcast: []byte(args[i])},
 					},
 				)
 			default:
diff --git a/pkg/maths/vector.go b/pkg/maths/vector.go
index 8a63708..92305cc 100644
--- a/pkg/maths/vector.go
+++ b/pkg/maths/vector.go
@@ -89,12 +89,20 @@ func BearingToVector(b roveapi.Bearing) Vector {
 	switch b {
 	case roveapi.Bearing_North:
 		return Vector{Y: 1}
+	case roveapi.Bearing_NorthEast:
+		return Vector{X: 1, Y: 1}
 	case roveapi.Bearing_East:
 		return Vector{X: 1}
+	case roveapi.Bearing_SouthEast:
+		return Vector{X: 1, Y: -1}
 	case roveapi.Bearing_South:
 		return Vector{Y: -1}
+	case roveapi.Bearing_SouthWest:
+		return Vector{X: -1, Y: -1}
 	case roveapi.Bearing_West:
 		return Vector{X: -1}
+	case roveapi.Bearing_NorthWest:
+		return Vector{X: -1, Y: 1}
 	}
 
 	return Vector{}
diff --git a/pkg/rove/command.go b/pkg/rove/command.go
deleted file mode 100644
index df49bea..0000000
--- a/pkg/rove/command.go
+++ /dev/null
@@ -1,14 +0,0 @@
-package rove
-
-import "github.com/mdiluz/rove/proto/roveapi"
-
-// Command represends a single command to execute
-type Command struct {
-	Command roveapi.CommandType `json:"command"`
-
-	// Used in the broadcast command
-	Message []byte `json:"message,omitempty"`
-}
-
-// CommandStream is a list of commands to execute in order
-type CommandStream []Command
diff --git a/pkg/rove/command_test.go b/pkg/rove/command_test.go
index 7506cd6..c7990d1 100644
--- a/pkg/rove/command_test.go
+++ b/pkg/rove/command_test.go
@@ -2,14 +2,49 @@ package rove
 
 import (
 	"testing"
+
+	"github.com/mdiluz/rove/proto/roveapi"
+	"github.com/stretchr/testify/assert"
 )
 
-func TestCommand_Raise(t *testing.T) {
-	// TODO: Test the raise command
+func TestCommand_Toggle(t *testing.T) {
+	w := NewWorld(8)
+	a, err := w.SpawnRover()
+	assert.NoError(t, err)
+
+	r, err := w.GetRover(a)
+	assert.NoError(t, err)
+	assert.Equal(t, roveapi.SailPosition_SolarCharging, r.SailPosition)
+
+	w.Enqueue(a, &roveapi.Command{Command: roveapi.CommandType_toggle})
+	w.EnqueueAllIncoming()
+	w.ExecuteCommandQueues()
+
+	r, err = w.GetRover(a)
+	assert.NoError(t, err)
+	assert.Equal(t, roveapi.SailPosition_CatchingWind, r.SailPosition)
+
+	w.Enqueue(a, &roveapi.Command{Command: roveapi.CommandType_toggle})
+	w.EnqueueAllIncoming()
+	w.ExecuteCommandQueues()
+
+	r, err = w.GetRover(a)
+	assert.NoError(t, err)
+	assert.Equal(t, roveapi.SailPosition_SolarCharging, r.SailPosition)
 }
 
-func TestCommand_Lower(t *testing.T) {
-	// TODO: Test the lower command
+func TestCommand_Turn(t *testing.T) {
+	w := NewWorld(8)
+	a, err := w.SpawnRover()
+	assert.NoError(t, err)
+
+	w.Enqueue(a, &roveapi.Command{Command: roveapi.CommandType_turn, Data: &roveapi.Command_Turn{Turn: roveapi.Bearing_NorthWest}})
+	w.EnqueueAllIncoming()
+	w.ExecuteCommandQueues()
+
+	r, err := w.GetRover(a)
+	assert.NoError(t, err)
+	assert.Equal(t, roveapi.Bearing_NorthWest, r.Bearing)
 }
 
 func TestCommand_Stash(t *testing.T) {
diff --git a/pkg/rove/rover.go b/pkg/rove/rover.go
index 6968c57..36b875f 100644
--- a/pkg/rove/rover.go
+++ b/pkg/rove/rover.go
@@ -10,6 +10,7 @@ import (
 
 	"github.com/google/uuid"
 	"github.com/mdiluz/rove/pkg/maths"
+	"github.com/mdiluz/rove/proto/roveapi"
 )
 
 // RoverLogEntry describes a single log entry for the rover
@@ -29,6 +30,9 @@ type Rover struct {
 	// Pos represents where this rover is in the world
 	Pos maths.Vector `json:"pos"`
 
+	// Bearing is the current direction the rover is facing
+	Bearing roveapi.Bearing `json:"bearing"`
+
 	// Range represents the distance the unit's radar can see
 	Range int `json:"range"`
 
@@ -48,7 +52,10 @@ type Rover struct {
 	Charge int `json:"charge"`
 
 	// MaximumCharge is the maximum charge able to be stored
-	MaximumCharge int `json:"maximum-Charge"`
+	MaximumCharge int `json:"maximum-charge"`
+
+	// SailPosition is the current position of the sails
+	SailPosition roveapi.SailPosition `json:"sail-position"`
 
 	// Logs Stores log of information
 	Logs []RoverLogEntry `json:"logs"`
@@ -63,6 +70,8 @@ func DefaultRover() Rover {
 		Capacity:         10,
 		Charge:           10,
 		MaximumCharge:    10,
+		Bearing:          roveapi.Bearing_North,
+		SailPosition:     roveapi.SailPosition_SolarCharging,
 		Name:             GenerateRoverName(),
 	}
 }
diff --git a/pkg/rove/world.go b/pkg/rove/world.go
index 6658417..43fbe83 100644
--- a/pkg/rove/world.go
+++ b/pkg/rove/world.go
@@ -10,6 +10,9 @@ import (
 	"github.com/mdiluz/rove/proto/roveapi"
 )
 
+// CommandStream is a list of commands to execute in order
+type CommandStream []roveapi.Command
+
 // World describes a self contained universe and everything in it
 type World struct {
 	// TicksPerDay is the amount of ticks in a single day
@@ -305,6 +308,45 @@ func (w *World) RoverStash(rover string) (roveapi.Object, error) {
 	return obj.Type, nil
 }
 
+// RoverToggle will toggle the sail position
+func (w *World) RoverToggle(rover string) (roveapi.SailPosition, error) {
+	w.worldMutex.Lock()
+	defer w.worldMutex.Unlock()
+
+	r, ok := w.Rovers[rover]
+	if !ok {
+		return roveapi.SailPosition_UnknownSailPosition, fmt.Errorf("no rover matching id")
+	}
+
+	// Swap the sail position
+	switch r.SailPosition {
+	case roveapi.SailPosition_CatchingWind:
+		r.SailPosition = roveapi.SailPosition_SolarCharging
+	case roveapi.SailPosition_SolarCharging:
+		r.SailPosition = roveapi.SailPosition_CatchingWind
+	}
+
+	w.Rovers[rover] = r
+	return r.SailPosition, nil
+}
+
+// RoverTurn will turn the rover
+func (w *World) RoverTurn(rover string, bearing roveapi.Bearing) (roveapi.Bearing, error) {
+	w.worldMutex.Lock()
+	defer w.worldMutex.Unlock()
+
+	r, ok := w.Rovers[rover]
+	if !ok {
+		return roveapi.Bearing_BearingUnknown, fmt.Errorf("no rover matching id")
+	}
+
+	// Set the new bearing
+	r.Bearing = bearing
+
+	w.Rovers[rover] = r
+	return r.Bearing, nil
+}
+
 // RadarFromRover can be used to query what a rover can currently see
 func (w *World) RadarFromRover(rover string) (radar []roveapi.Tile, objs []roveapi.Object, err error) {
 	w.worldMutex.RLock()
@@ -364,7 +406,7 @@ func (w *World) RadarFromRover(rover string) (radar []roveapi.Tile, objs []rovea
 }
 
 // RoverCommands returns current commands for the given rover
-func (w *World) RoverCommands(rover string) (incoming []Command, queued []Command) {
+func (w *World) RoverCommands(rover string) (incoming []roveapi.Command, queued []roveapi.Command) {
 	if c, ok := w.CommandIncoming[rover]; ok {
 		incoming = c
 	}
@@ -375,20 +417,24 @@ func (w *World) RoverCommands(rover string) (incoming []Command, queued []Comman
 }
 
 // Enqueue will queue the commands given
-func (w *World) Enqueue(rover string, commands ...Command) error {
+func (w *World) Enqueue(rover string, commands ...*roveapi.Command) error {
 
 	// First validate the commands
 	for _, c := range commands {
 		switch c.Command {
 		case roveapi.CommandType_broadcast:
-			if len(c.Message) > 3 {
-				return fmt.Errorf("too many characters in message (limit 3): %d", len(c.Message))
+			if len(c.GetBroadcast()) > 3 {
+				return fmt.Errorf("too many characters in message (limit 3): %d", len(c.GetBroadcast()))
 			}
-			for _, b := range c.Message {
+			for _, b := range c.GetBroadcast() {
 				if b < 37 || b > 126 {
 					return fmt.Errorf("invalid message character: %c", b)
 				}
 			}
+		case roveapi.CommandType_turn:
+			if c.GetTurn() == roveapi.Bearing_BearingUnknown {
+				return fmt.Errorf("turn command given unknown bearing")
+			}
 		case roveapi.CommandType_toggle:
 		case roveapi.CommandType_stash:
 		case roveapi.CommandType_repair:
@@ -403,7 +449,17 @@ func (w *World) Enqueue(rover string, commands ...Command) error {
 	defer w.cmdMutex.Unlock()
 
 	// Override the incoming command set
-	w.CommandIncoming[rover] = commands
+	var cmds []roveapi.Command
+	for _, c := range commands {
+		// Copy the command and data but none of the locks or internals
+		cmds = append(cmds,
+			roveapi.Command{
+				Command: c.Command,
+				Data:    c.Data,
+			})
+	}
+
+	w.CommandIncoming[rover] = cmds
 
 	return nil
 }
@@ -427,16 +483,16 @@ func (w *World) ExecuteCommandQueues() {
 	// Iterate through all the current commands
 	for rover, cmds := range w.CommandQueue {
 		if len(cmds) != 0 {
-			// Extract the first command in the queue
-			c := cmds[0]
-			w.CommandQueue[rover] = cmds[1:]
 
 			// Execute the command
-			if err := w.ExecuteCommand(&c, rover); err != nil {
+			if err := w.ExecuteCommand(&cmds[0], rover); err != nil {
 				log.Println(err)
 				// TODO: Report this error somehow
 			}
 
+			// Extract the first command in the queue
+			w.CommandQueue[rover] = cmds[1:]
+
 		} else {
 			// Clean out the empty entry
 			delete(w.CommandQueue, rover)
@@ -451,13 +507,14 @@ func (w *World) ExecuteCommandQueues() {
 }
 
 // ExecuteCommand will execute a single command
-func (w *World) ExecuteCommand(c *Command, rover string) (err error) {
-	log.Printf("Executing command: %+v for %s\n", *c, rover)
+func (w *World) ExecuteCommand(c *roveapi.Command, rover string) (err error) {
+	log.Printf("Executing command: %+v for %s\n", c.Command, rover)
 
 	switch c.Command {
 	case roveapi.CommandType_toggle:
-		// TODO: Toggle the sails
-
+		if _, err := w.RoverToggle(rover); err != nil {
+			return err
+		}
 	case roveapi.CommandType_stash:
 		if _, err := w.RoverStash(rover); err != nil {
 			return err
@@ -477,7 +534,12 @@ func (w *World) ExecuteCommand(c *Command, rover string) (err error) {
 		}
 
 	case roveapi.CommandType_broadcast:
-		if err := w.RoverBroadcast(rover, c.Message); err != nil {
+		if err := w.RoverBroadcast(rover, c.GetBroadcast()); err != nil {
+			return err
+		}
+
+	case roveapi.CommandType_turn:
+		if _, err := w.RoverTurn(rover, c.GetTurn()); err != nil {
 			return err
 		}
 
diff --git a/pkg/rove/world_test.go b/pkg/rove/world_test.go
index f393f3d..ffac1af 100644
--- a/pkg/rove/world_test.go
+++ b/pkg/rove/world_test.go
@@ -269,7 +269,7 @@ func TestWorld_RoverRepair(t *testing.T) {
 	assert.NoError(t, err, "couldn't get rover info")
 	assert.Equal(t, originalInfo.Integrity-1, newinfo.Integrity, "rover should have lost integrity")
 
-	err = world.ExecuteCommand(&Command{Command: roveapi.CommandType_repair}, a)
+	err = world.ExecuteCommand(&roveapi.Command{Command: roveapi.CommandType_repair}, a)
 	assert.NoError(t, err, "Failed to repair rover")
 
 	newinfo, err = world.GetRover(a)
@@ -283,7 +283,7 @@ func TestWorld_RoverRepair(t *testing.T) {
 	assert.NoError(t, err, "Failed to stash")
 	assert.Equal(t, roveapi.Object_RockSmall, o, "Failed to get correct object")
 
-	err = world.ExecuteCommand(&Command{Command: roveapi.CommandType_repair}, a)
+	err = world.ExecuteCommand(&roveapi.Command{Command: roveapi.CommandType_repair}, a)
 	assert.NoError(t, err, "Failed to repair rover")
 
 	newinfo, err = world.GetRover(a)
diff --git a/proto/roveapi/roveapi.pb.go b/proto/roveapi/roveapi.pb.go
index 9717407..cee8615 100644
--- a/proto/roveapi/roveapi.pb.go
+++ b/proto/roveapi/roveapi.pb.go
@@ -41,12 +41,14 @@ const (
 	CommandType_none CommandType = 0
 	// Toggles the sails, either catching the wind, or charging from the sun
 	CommandType_toggle CommandType = 1
+	// Turns the rover in the specified bearing, requires data
+	CommandType_turn CommandType = 2
 	// Stashes item at current location in rover inventory
-	CommandType_stash CommandType = 2
+	CommandType_stash CommandType = 3
 	// Repairs the rover using an inventory object
-	CommandType_repair CommandType = 3
-	// Broadcasts a message to nearby rovers
-	CommandType_broadcast CommandType = 4
+	CommandType_repair CommandType = 4
+	// Broadcasts a message to nearby rovers, requires data
+	CommandType_broadcast CommandType = 5
 )
 
 // Enum value maps for CommandType.
@@ -54,16 +56,18 @@ var (
 	CommandType_name = map[int32]string{
 		0: "none",
 		1: "toggle",
-		2: "stash",
-		3: "repair",
-		4: "broadcast",
+		2: "turn",
+		3: "stash",
+		4: "repair",
+		5: "broadcast",
 	}
 	CommandType_value = map[string]int32{
 		"none":      0,
 		"toggle":    1,
-		"stash":     2,
-		"repair":    3,
-		"broadcast": 4,
+		"turn":      2,
+		"stash":     3,
+		"repair":    4,
+		"broadcast": 5,
 	}
 )
 
@@ -280,6 +284,58 @@ func (Tile) EnumDescriptor() ([]byte, []int) {
 	return file_roveapi_roveapi_proto_rawDescGZIP(), []int{3}
 }
 
+// SailPosition represents the position of the sola sail
+type SailPosition int32
+
+const (
+	SailPosition_UnknownSailPosition SailPosition = 0
+	// CatchingWind means the sail is catching the wind and moving the rover
+	SailPosition_CatchingWind SailPosition = 1
+	// SolarCharging means the sail is facing the sun and charging
+	SailPosition_SolarCharging SailPosition = 2
+)
+
+// Enum value maps for SailPosition.
+var (
+	SailPosition_name = map[int32]string{
+		0: "UnknownSailPosition",
+		1: "CatchingWind",
+		2: "SolarCharging",
+	}
+	SailPosition_value = map[string]int32{
+		"UnknownSailPosition": 0,
+		"CatchingWind":        1,
+		"SolarCharging":       2,
+	}
+)
+
+func (x SailPosition) Enum() *SailPosition {
+	p := new(SailPosition)
+	*p = x
+	return p
+}
+
+func (x SailPosition) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (SailPosition) Descriptor() protoreflect.EnumDescriptor {
+	return file_roveapi_roveapi_proto_enumTypes[4].Descriptor()
+}
+
+func (SailPosition) Type() protoreflect.EnumType {
+	return &file_roveapi_roveapi_proto_enumTypes[4]
+}
+
+func (x SailPosition) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use SailPosition.Descriptor instead.
+func (SailPosition) EnumDescriptor() ([]byte, []int) {
+	return file_roveapi_roveapi_proto_rawDescGZIP(), []int{4}
+}
+
 // ServerStatusRequest is an empty placeholder
 type ServerStatusRequest struct {
 	state         protoimpl.MessageState
@@ -569,7 +625,8 @@ type Command struct {
 	// The command type
 	Command CommandType `protobuf:"varint,1,opt,name=command,proto3,enum=roveapi.CommandType" json:"command,omitempty"`
 	// Types that are assignable to Data:
-	//	*Command_Message
+	//	*Command_Broadcast
+	//	*Command_Turn
 	Data isCommand_Data `protobuf_oneof:"data"`
 }
 
@@ -619,25 +676,38 @@ func (m *Command) GetData() isCommand_Data {
 	return nil
 }
 
-func (x *Command) GetMessage() []byte {
-	if x, ok := x.GetData().(*Command_Message); ok {
-		return x.Message
+func (x *Command) GetBroadcast() []byte {
+	if x, ok := x.GetData().(*Command_Broadcast); ok {
+		return x.Broadcast
 	}
 	return nil
 }
 
+func (x *Command) GetTurn() Bearing {
+	if x, ok := x.GetData().(*Command_Turn); ok {
+		return x.Turn
+	}
+	return Bearing_BearingUnknown
+}
+
 type isCommand_Data interface {
 	isCommand_Data()
 }
 
-type Command_Message struct {
+type Command_Broadcast struct {
 	// A simple message, must be composed of printable ASCII glyphs (32-126)
 	// maximum of three characters
-	// Used with BROADCAST
-	Message []byte `protobuf:"bytes,2,opt,name=message,proto3,oneof"`
+	Broadcast []byte `protobuf:"bytes,2,opt,name=broadcast,proto3,oneof"`
 }
 
-func (*Command_Message) isCommand_Data() {}
+type Command_Turn struct {
+	// The bearing for the rover to turn to
+	Turn Bearing `protobuf:"varint,3,opt,name=turn,proto3,enum=roveapi.Bearing,oneof"`
+}
+
+func (*Command_Broadcast) isCommand_Data() {}
+
+func (*Command_Turn) isCommand_Data() {}
 
 // CommandRequest describes a set of commands to be requested for the rover
 type CommandRequest struct {
@@ -1026,26 +1096,30 @@ type StatusResponse struct {
 	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
 	// Position of the rover in world coordinates
 	Position *Vector `protobuf:"bytes,2,opt,name=position,proto3" json:"position,omitempty"`
+	// The current direction of the rover
+	Bearing Bearing `protobuf:"varint,3,opt,name=bearing,proto3,enum=roveapi.Bearing" json:"bearing,omitempty"`
 	// The range of this rover's radar and broadcasting
-	Range int32 `protobuf:"varint,3,opt,name=range,proto3" json:"range,omitempty"`
+	Range int32 `protobuf:"varint,4,opt,name=range,proto3" json:"range,omitempty"`
 	// The items in the rover inventory
-	Inventory []byte `protobuf:"bytes,4,opt,name=inventory,proto3" json:"inventory,omitempty"`
+	Inventory []byte `protobuf:"bytes,5,opt,name=inventory,proto3" json:"inventory,omitempty"`
 	// The capacity of the inventory
-	Capacity int32 `protobuf:"varint,5,opt,name=capacity,proto3" json:"capacity,omitempty"`
+	Capacity int32 `protobuf:"varint,6,opt,name=capacity,proto3" json:"capacity,omitempty"`
 	// The current health of the rover
-	Integrity int32 `protobuf:"varint,6,opt,name=integrity,proto3" json:"integrity,omitempty"`
+	Integrity int32 `protobuf:"varint,7,opt,name=integrity,proto3" json:"integrity,omitempty"`
 	// The maximum health of the rover
-	MaximumIntegrity int32 `protobuf:"varint,7,opt,name=maximumIntegrity,proto3" json:"maximumIntegrity,omitempty"`
+	MaximumIntegrity int32 `protobuf:"varint,8,opt,name=maximumIntegrity,proto3" json:"maximumIntegrity,omitempty"`
 	// The energy stored in the rover
-	Charge int32 `protobuf:"varint,8,opt,name=charge,proto3" json:"charge,omitempty"`
+	Charge int32 `protobuf:"varint,9,opt,name=charge,proto3" json:"charge,omitempty"`
 	// The max energy the rover can store
-	MaximumCharge int32 `protobuf:"varint,9,opt,name=maximumCharge,proto3" json:"maximumCharge,omitempty"`
+	MaximumCharge int32 `protobuf:"varint,10,opt,name=maximumCharge,proto3" json:"maximumCharge,omitempty"`
+	// The current position of the sails
+	SailPosition SailPosition `protobuf:"varint,11,opt,name=sailPosition,proto3,enum=roveapi.SailPosition" json:"sailPosition,omitempty"`
 	// The set of currently incoming commands for this tick
-	IncomingCommands []*Command `protobuf:"bytes,10,rep,name=incomingCommands,proto3" json:"incomingCommands,omitempty"`
+	IncomingCommands []*Command `protobuf:"bytes,12,rep,name=incomingCommands,proto3" json:"incomingCommands,omitempty"`
 	// The set of currently queued commands
-	QueuedCommands []*Command `protobuf:"bytes,11,rep,name=queuedCommands,proto3" json:"queuedCommands,omitempty"`
+	QueuedCommands []*Command `protobuf:"bytes,13,rep,name=queuedCommands,proto3" json:"queuedCommands,omitempty"`
 	// The most recent logs
-	Logs []*Log `protobuf:"bytes,12,rep,name=logs,proto3" json:"logs,omitempty"`
+	Logs []*Log `protobuf:"bytes,14,rep,name=logs,proto3" json:"logs,omitempty"`
 }
 
 func (x *StatusResponse) Reset() {
@@ -1094,6 +1168,13 @@ func (x *StatusResponse) GetPosition() *Vector {
 	return nil
 }
 
+func (x *StatusResponse) GetBearing() Bearing {
+	if x != nil {
+		return x.Bearing
+	}
+	return Bearing_BearingUnknown
+}
+
 func (x *StatusResponse) GetRange() int32 {
 	if x != nil {
 		return x.Range
@@ -1143,6 +1224,13 @@ func (x *StatusResponse) GetMaximumCharge() int32 {
 	return 0
 }
 
+func (x *StatusResponse) GetSailPosition() SailPosition {
+	if x != nil {
+		return x.SailPosition
+	}
+	return SailPosition_UnknownSailPosition
+}
+
 func (x *StatusResponse) GetIncomingCommands() []*Command {
 	if x != nil {
 		return x.IncomingCommands
@@ -1190,116 +1278,131 @@ var file_roveapi_roveapi_proto_rawDesc = []byte{
 	0x69, 0x73, 0x74, 0x65, 0x72, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x2a, 0x0a,
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-	0x52, 0x07, 0x61, 0x63, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x22, 0x5d, 0x0a, 0x07, 0x43, 0x6f, 0x6d,
-	0x6d, 0x61, 0x6e, 0x64, 0x12, 0x2e, 0x0a, 0x07, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x18,
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-	0x43, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x54, 0x79, 0x70, 0x65, 0x52, 0x07, 0x63, 0x6f, 0x6d,
-	0x6d, 0x61, 0x6e, 0x64, 0x12, 0x1a, 0x0a, 0x07, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x18,
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-	0x42, 0x06, 0x0a, 0x04, 0x64, 0x61, 0x74, 0x61, 0x22, 0x6a, 0x0a, 0x0e, 0x43, 0x6f, 0x6d, 0x6d,
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 var (
@@ -1314,56 +1417,60 @@ func file_roveapi_roveapi_proto_rawDescGZIP() []byte {
 	return file_roveapi_roveapi_proto_rawDescData
 }
 
-var file_roveapi_roveapi_proto_enumTypes = make([]protoimpl.EnumInfo, 4)
+var file_roveapi_roveapi_proto_enumTypes = make([]protoimpl.EnumInfo, 5)
 var file_roveapi_roveapi_proto_msgTypes = make([]protoimpl.MessageInfo, 14)
 var file_roveapi_roveapi_proto_goTypes = []interface{}{
 	(CommandType)(0),             // 0: roveapi.CommandType
 	(Bearing)(0),                 // 1: roveapi.Bearing
 	(Object)(0),                  // 2: roveapi.Object
 	(Tile)(0),                    // 3: roveapi.Tile
-	(*ServerStatusRequest)(nil),  // 4: roveapi.ServerStatusRequest
-	(*ServerStatusResponse)(nil), // 5: roveapi.ServerStatusResponse
-	(*RegisterRequest)(nil),      // 6: roveapi.RegisterRequest
-	(*Account)(nil),              // 7: roveapi.Account
-	(*RegisterResponse)(nil),     // 8: roveapi.RegisterResponse
-	(*Command)(nil),              // 9: roveapi.Command
-	(*CommandRequest)(nil),       // 10: roveapi.CommandRequest
-	(*CommandResponse)(nil),      // 11: roveapi.CommandResponse
-	(*RadarRequest)(nil),         // 12: roveapi.RadarRequest
-	(*RadarResponse)(nil),        // 13: roveapi.RadarResponse
-	(*StatusRequest)(nil),        // 14: roveapi.StatusRequest
-	(*Log)(nil),                  // 15: roveapi.Log
-	(*Vector)(nil),               // 16: roveapi.Vector
-	(*StatusResponse)(nil),       // 17: roveapi.StatusResponse
+	(SailPosition)(0),            // 4: roveapi.SailPosition
+	(*ServerStatusRequest)(nil),  // 5: roveapi.ServerStatusRequest
+	(*ServerStatusResponse)(nil), // 6: roveapi.ServerStatusResponse
+	(*RegisterRequest)(nil),      // 7: roveapi.RegisterRequest
+	(*Account)(nil),              // 8: roveapi.Account
+	(*RegisterResponse)(nil),     // 9: roveapi.RegisterResponse
+	(*Command)(nil),              // 10: roveapi.Command
+	(*CommandRequest)(nil),       // 11: roveapi.CommandRequest
+	(*CommandResponse)(nil),      // 12: roveapi.CommandResponse
+	(*RadarRequest)(nil),         // 13: roveapi.RadarRequest
+	(*RadarResponse)(nil),        // 14: roveapi.RadarResponse
+	(*StatusRequest)(nil),        // 15: roveapi.StatusRequest
+	(*Log)(nil),                  // 16: roveapi.Log
+	(*Vector)(nil),               // 17: roveapi.Vector
+	(*StatusResponse)(nil),       // 18: roveapi.StatusResponse
 }
 var file_roveapi_roveapi_proto_depIdxs = []int32{
-	7,  // 0: roveapi.RegisterResponse.account:type_name -> roveapi.Account
+	8,  // 0: roveapi.RegisterResponse.account:type_name -> roveapi.Account
 	0,  // 1: roveapi.Command.command:type_name -> roveapi.CommandType
-	7,  // 2: roveapi.CommandRequest.account:type_name -> roveapi.Account
-	9,  // 3: roveapi.CommandRequest.commands:type_name -> roveapi.Command
-	7,  // 4: roveapi.RadarRequest.account:type_name -> roveapi.Account
-	3,  // 5: roveapi.RadarResponse.tiles:type_name -> roveapi.Tile
-	2,  // 6: roveapi.RadarResponse.objects:type_name -> roveapi.Object
-	7,  // 7: roveapi.StatusRequest.account:type_name -> roveapi.Account
-	16, // 8: roveapi.StatusResponse.position:type_name -> roveapi.Vector
-	9,  // 9: roveapi.StatusResponse.incomingCommands:type_name -> roveapi.Command
-	9,  // 10: roveapi.StatusResponse.queuedCommands:type_name -> roveapi.Command
-	15, // 11: roveapi.StatusResponse.logs:type_name -> roveapi.Log
-	4,  // 12: roveapi.Rove.ServerStatus:input_type -> roveapi.ServerStatusRequest
-	6,  // 13: roveapi.Rove.Register:input_type -> roveapi.RegisterRequest
-	10, // 14: roveapi.Rove.Command:input_type -> roveapi.CommandRequest
-	12, // 15: roveapi.Rove.Radar:input_type -> roveapi.RadarRequest
-	14, // 16: roveapi.Rove.Status:input_type -> roveapi.StatusRequest
-	5,  // 17: roveapi.Rove.ServerStatus:output_type -> roveapi.ServerStatusResponse
-	8,  // 18: roveapi.Rove.Register:output_type -> roveapi.RegisterResponse
-	11, // 19: roveapi.Rove.Command:output_type -> roveapi.CommandResponse
-	13, // 20: roveapi.Rove.Radar:output_type -> roveapi.RadarResponse
-	17, // 21: roveapi.Rove.Status:output_type -> roveapi.StatusResponse
-	17, // [17:22] is the sub-list for method output_type
-	12, // [12:17] is the sub-list for method input_type
-	12, // [12:12] is the sub-list for extension type_name
-	12, // [12:12] is the sub-list for extension extendee
-	0,  // [0:12] is the sub-list for field type_name
+	1,  // 2: roveapi.Command.turn:type_name -> roveapi.Bearing
+	8,  // 3: roveapi.CommandRequest.account:type_name -> roveapi.Account
+	10, // 4: roveapi.CommandRequest.commands:type_name -> roveapi.Command
+	8,  // 5: roveapi.RadarRequest.account:type_name -> roveapi.Account
+	3,  // 6: roveapi.RadarResponse.tiles:type_name -> roveapi.Tile
+	2,  // 7: roveapi.RadarResponse.objects:type_name -> roveapi.Object
+	8,  // 8: roveapi.StatusRequest.account:type_name -> roveapi.Account
+	17, // 9: roveapi.StatusResponse.position:type_name -> roveapi.Vector
+	1,  // 10: roveapi.StatusResponse.bearing:type_name -> roveapi.Bearing
+	4,  // 11: roveapi.StatusResponse.sailPosition:type_name -> roveapi.SailPosition
+	10, // 12: roveapi.StatusResponse.incomingCommands:type_name -> roveapi.Command
+	10, // 13: roveapi.StatusResponse.queuedCommands:type_name -> roveapi.Command
+	16, // 14: roveapi.StatusResponse.logs:type_name -> roveapi.Log
+	5,  // 15: roveapi.Rove.ServerStatus:input_type -> roveapi.ServerStatusRequest
+	7,  // 16: roveapi.Rove.Register:input_type -> roveapi.RegisterRequest
+	11, // 17: roveapi.Rove.Command:input_type -> roveapi.CommandRequest
+	13, // 18: roveapi.Rove.Radar:input_type -> roveapi.RadarRequest
+	15, // 19: roveapi.Rove.Status:input_type -> roveapi.StatusRequest
+	6,  // 20: roveapi.Rove.ServerStatus:output_type -> roveapi.ServerStatusResponse
+	9,  // 21: roveapi.Rove.Register:output_type -> roveapi.RegisterResponse
+	12, // 22: roveapi.Rove.Command:output_type -> roveapi.CommandResponse
+	14, // 23: roveapi.Rove.Radar:output_type -> roveapi.RadarResponse
+	18, // 24: roveapi.Rove.Status:output_type -> roveapi.StatusResponse
+	20, // [20:25] is the sub-list for method output_type
+	15, // [15:20] is the sub-list for method input_type
+	15, // [15:15] is the sub-list for extension type_name
+	15, // [15:15] is the sub-list for extension extendee
+	0,  // [0:15] is the sub-list for field type_name
 }
 
 func init() { file_roveapi_roveapi_proto_init() }
@@ -1542,14 +1649,15 @@ func file_roveapi_roveapi_proto_init() {
 		}
 	}
 	file_roveapi_roveapi_proto_msgTypes[5].OneofWrappers = []interface{}{
-		(*Command_Message)(nil),
+		(*Command_Broadcast)(nil),
+		(*Command_Turn)(nil),
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_roveapi_roveapi_proto_rawDesc,
-			NumEnums:      4,
+			NumEnums:      5,
 			NumMessages:   14,
 			NumExtensions: 0,
 			NumServices:   1,
diff --git a/proto/roveapi/roveapi.proto b/proto/roveapi/roveapi.proto
index 033fcf3..9f13a17 100644
--- a/proto/roveapi/roveapi.proto
+++ b/proto/roveapi/roveapi.proto
@@ -91,12 +91,14 @@ enum CommandType {
   none = 0;
   // Toggles the sails, either catching the wind, or charging from the sun
   toggle = 1;
+  // Turns the rover in the specified bearing, requires data
+  turn = 2;
   // Stashes item at current location in rover inventory
-  stash = 2;
+  stash = 3;
   // Repairs the rover using an inventory object
-  repair = 3;
-  // Broadcasts a message to nearby rovers
-  broadcast = 4;
+  repair = 4;
+  // Broadcasts a message to nearby rovers, requires data
+  broadcast = 5;
 }
 
 // Bearing represents a compass direction
@@ -121,8 +123,10 @@ message Command {
   oneof data {
     // A simple message, must be composed of printable ASCII glyphs (32-126)
     // maximum of three characters
-    // Used with BROADCAST
-    bytes message = 2;
+    bytes broadcast = 2;
+
+    // The bearing for the rover to turn to
+    Bearing turn = 3;
   }
 }
 
@@ -218,6 +222,17 @@ message Vector {
   int32 y = 2;
 }
 
+// SailPosition represents the position of the sola sail
+enum SailPosition {
+  UnknownSailPosition = 0;
+
+  // CatchingWind means the sail is catching the wind and moving the rover
+  CatchingWind = 1;
+
+  // SolarCharging means the sail is facing the sun and charging
+  SolarCharging = 2;
+}
+
 // StatusResponse is the response given to a status request
 message StatusResponse {
   // The name of the rover
@@ -226,33 +241,39 @@ message StatusResponse {
   // Position of the rover in world coordinates
   Vector position = 2;
 
+  // The current direction of the rover
+  Bearing bearing = 3;
+
   // The range of this rover's radar and broadcasting
-  int32 range = 3;
+  int32 range = 4;
 
   // The items in the rover inventory
-  bytes inventory = 4;
+  bytes inventory = 5;
 
   // The capacity of the inventory
-  int32 capacity = 5;
+  int32 capacity = 6;
 
   // The current health of the rover
-  int32 integrity = 6;
+  int32 integrity = 7;
 
   // The maximum health of the rover
-  int32 maximumIntegrity = 7;
+  int32 maximumIntegrity = 8;
 
   // The energy stored in the rover
-  int32 charge = 8;
+  int32 charge = 9;
 
   // The max energy the rover can store
-  int32 maximumCharge = 9;
+  int32 maximumCharge = 10;
+
+  // The current position of the sails
+  SailPosition sailPosition = 11;
 
   // The set of currently incoming commands for this tick
-  repeated Command incomingCommands = 10;
+  repeated Command incomingCommands = 12;
 
   // The set of currently queued commands
-  repeated Command queuedCommands = 11;
+  repeated Command queuedCommands = 13;
 
   // The most recent logs
-  repeated Log logs = 12;
+  repeated Log logs = 14;
 }
\ No newline at end of file

From 8667f551438cc66e8aa1b1dbbe1ec7f37c0dc8ff Mon Sep 17 00:00:00 2001
From: Marc Di Luzio <marc.diluzio@gmail.com>
Date: Tue, 21 Jul 2020 23:52:14 +0100
Subject: [PATCH 04/13] Simplify by making command streams pointer lists like
 in proto

---
 cmd/rove-server/internal/routes.go |   9 +-
 cmd/rove/main.go                   |   8 +-
 pkg/rove/command_test.go           |   2 +-
 pkg/rove/world.go                  |  19 +-
 proto/roveapi/roveapi.pb.go        | 286 +++++++++++++----------------
 proto/roveapi/roveapi.proto        |  12 +-
 6 files changed, 143 insertions(+), 193 deletions(-)

diff --git a/cmd/rove-server/internal/routes.go b/cmd/rove-server/internal/routes.go
index 19a5fef..02a7483 100644
--- a/cmd/rove-server/internal/routes.go
+++ b/cmd/rove-server/internal/routes.go
@@ -75,14 +75,7 @@ func (s *Server) Status(ctx context.Context, req *roveapi.StatusRequest) (respon
 			inv = append(inv, byte(i.Type))
 		}
 
-		in, qu := s.world.RoverCommands(resp)
-		var incoming, queued []*roveapi.Command
-		for i := range in {
-			incoming = append(incoming, &in[i])
-		}
-		for i := range qu {
-			queued = append(queued, &qu[i])
-		}
+		incoming, queued := s.world.RoverCommands(resp)
 		var logs []*roveapi.Log
 		for _, log := range rover.Logs {
 			logs = append(logs, &roveapi.Log{
diff --git a/cmd/rove/main.go b/cmd/rove/main.go
index 51038a7..2977baa 100644
--- a/cmd/rove/main.go
+++ b/cmd/rove/main.go
@@ -243,8 +243,8 @@ func InnerMain(command string, args ...string) error {
 				}
 				commands = append(commands,
 					&roveapi.Command{
-						Command: roveapi.CommandType_broadcast,
-						Data:    &roveapi.Command_Broadcast{Broadcast: []byte(args[i])},
+						Command:   roveapi.CommandType_broadcast,
+						Broadcast: []byte(args[i]),
 					},
 				)
 			case "broadcast":
@@ -256,8 +256,8 @@ func InnerMain(command string, args ...string) error {
 				}
 				commands = append(commands,
 					&roveapi.Command{
-						Command: roveapi.CommandType_broadcast,
-						Data:    &roveapi.Command_Broadcast{Broadcast: []byte(args[i])},
+						Command:   roveapi.CommandType_broadcast,
+						Broadcast: []byte(args[i]),
 					},
 				)
 			default:
diff --git a/pkg/rove/command_test.go b/pkg/rove/command_test.go
index c7990d1..26c5e56 100644
--- a/pkg/rove/command_test.go
+++ b/pkg/rove/command_test.go
@@ -38,7 +38,7 @@ func TestCommand_Turn(t *testing.T) {
 	a, err := w.SpawnRover()
 	assert.NoError(t, err)
 
-	w.Enqueue(a, &roveapi.Command{Command: roveapi.CommandType_turn, Data: &roveapi.Command_Turn{Turn: roveapi.Bearing_NorthWest}})
+	w.Enqueue(a, &roveapi.Command{Command: roveapi.CommandType_turn, Turn: roveapi.Bearing_NorthWest})
 	w.EnqueueAllIncoming()
 	w.ExecuteCommandQueues()
 
diff --git a/pkg/rove/world.go b/pkg/rove/world.go
index 43fbe83..5e8483f 100644
--- a/pkg/rove/world.go
+++ b/pkg/rove/world.go
@@ -11,7 +11,7 @@ import (
 )
 
 // CommandStream is a list of commands to execute in order
-type CommandStream []roveapi.Command
+type CommandStream []*roveapi.Command
 
 // World describes a self contained universe and everything in it
 type World struct {
@@ -406,7 +406,7 @@ func (w *World) RadarFromRover(rover string) (radar []roveapi.Tile, objs []rovea
 }
 
 // RoverCommands returns current commands for the given rover
-func (w *World) RoverCommands(rover string) (incoming []roveapi.Command, queued []roveapi.Command) {
+func (w *World) RoverCommands(rover string) (incoming CommandStream, queued CommandStream) {
 	if c, ok := w.CommandIncoming[rover]; ok {
 		incoming = c
 	}
@@ -448,18 +448,7 @@ func (w *World) Enqueue(rover string, commands ...*roveapi.Command) error {
 	w.cmdMutex.Lock()
 	defer w.cmdMutex.Unlock()
 
-	// Override the incoming command set
-	var cmds []roveapi.Command
-	for _, c := range commands {
-		// Copy the command and data but none of the locks or internals
-		cmds = append(cmds,
-			roveapi.Command{
-				Command: c.Command,
-				Data:    c.Data,
-			})
-	}
-
-	w.CommandIncoming[rover] = cmds
+	w.CommandIncoming[rover] = commands
 
 	return nil
 }
@@ -485,7 +474,7 @@ func (w *World) ExecuteCommandQueues() {
 		if len(cmds) != 0 {
 
 			// Execute the command
-			if err := w.ExecuteCommand(&cmds[0], rover); err != nil {
+			if err := w.ExecuteCommand(cmds[0], rover); err != nil {
 				log.Println(err)
 				// TODO: Report this error somehow
 			}
diff --git a/proto/roveapi/roveapi.pb.go b/proto/roveapi/roveapi.pb.go
index cee8615..51a886f 100644
--- a/proto/roveapi/roveapi.pb.go
+++ b/proto/roveapi/roveapi.pb.go
@@ -624,10 +624,11 @@ type Command struct {
 
 	// The command type
 	Command CommandType `protobuf:"varint,1,opt,name=command,proto3,enum=roveapi.CommandType" json:"command,omitempty"`
-	// Types that are assignable to Data:
-	//	*Command_Broadcast
-	//	*Command_Turn
-	Data isCommand_Data `protobuf_oneof:"data"`
+	// A simple message, must be composed of printable ASCII glyphs (32-126)
+	// maximum of three characters
+	Broadcast []byte `protobuf:"bytes,2,opt,name=broadcast,proto3" json:"broadcast,omitempty"`
+	// The bearing for the rover to turn to
+	Turn Bearing `protobuf:"varint,3,opt,name=turn,proto3,enum=roveapi.Bearing" json:"turn,omitempty"`
 }
 
 func (x *Command) Reset() {
@@ -669,46 +670,20 @@ func (x *Command) GetCommand() CommandType {
 	return CommandType_none
 }
 
-func (m *Command) GetData() isCommand_Data {
-	if m != nil {
-		return m.Data
-	}
-	return nil
-}
-
 func (x *Command) GetBroadcast() []byte {
-	if x, ok := x.GetData().(*Command_Broadcast); ok {
+	if x != nil {
 		return x.Broadcast
 	}
 	return nil
 }
 
 func (x *Command) GetTurn() Bearing {
-	if x, ok := x.GetData().(*Command_Turn); ok {
+	if x != nil {
 		return x.Turn
 	}
 	return Bearing_BearingUnknown
 }
 
-type isCommand_Data interface {
-	isCommand_Data()
-}
-
-type Command_Broadcast struct {
-	// A simple message, must be composed of printable ASCII glyphs (32-126)
-	// maximum of three characters
-	Broadcast []byte `protobuf:"bytes,2,opt,name=broadcast,proto3,oneof"`
-}
-
-type Command_Turn struct {
-	// The bearing for the rover to turn to
-	Turn Bearing `protobuf:"varint,3,opt,name=turn,proto3,enum=roveapi.Bearing,oneof"`
-}
-
-func (*Command_Broadcast) isCommand_Data() {}
-
-func (*Command_Turn) isCommand_Data() {}
-
 // CommandRequest describes a set of commands to be requested for the rover
 type CommandRequest struct {
 	state         protoimpl.MessageState
@@ -1278,131 +1253,130 @@ var file_roveapi_roveapi_proto_rawDesc = []byte{
 	0x69, 0x73, 0x74, 0x65, 0x72, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x2a, 0x0a,
 	0x07, 0x61, 0x63, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x10,
 	0x2e, 0x72, 0x6f, 0x76, 0x65, 0x61, 0x70, 0x69, 0x2e, 0x41, 0x63, 0x63, 0x6f, 0x75, 0x6e, 0x74,
-	0x52, 0x07, 0x61, 0x63, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x22, 0x89, 0x01, 0x0a, 0x07, 0x43, 0x6f,
-	0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x12, 0x2e, 0x0a, 0x07, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64,
-	0x18, 0x01, 0x20, 0x01, 0x28, 0x0e, 0x32, 0x14, 0x2e, 0x72, 0x6f, 0x76, 0x65, 0x61, 0x70, 0x69,
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 var (
@@ -1648,10 +1622,6 @@ func file_roveapi_roveapi_proto_init() {
 			}
 		}
 	}
-	file_roveapi_roveapi_proto_msgTypes[5].OneofWrappers = []interface{}{
-		(*Command_Broadcast)(nil),
-		(*Command_Turn)(nil),
-	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
 		File: protoimpl.DescBuilder{
diff --git a/proto/roveapi/roveapi.proto b/proto/roveapi/roveapi.proto
index 9f13a17..9ca09d8 100644
--- a/proto/roveapi/roveapi.proto
+++ b/proto/roveapi/roveapi.proto
@@ -120,14 +120,12 @@ message Command {
   // The command type
   CommandType command = 1;
 
-  oneof data {
-    // A simple message, must be composed of printable ASCII glyphs (32-126)
-    // maximum of three characters
-    bytes broadcast = 2;
+  // A simple message, must be composed of printable ASCII glyphs (32-126)
+  // maximum of three characters
+  bytes broadcast = 2;
 
-    // The bearing for the rover to turn to
-    Bearing turn = 3;
-  }
+  // The bearing for the rover to turn to
+  Bearing turn = 3;
 }
 
 // CommandRequest describes a set of commands to be requested for the rover

From 6b5d5abea174039e17efe1de2ee26aaa897158f6 Mon Sep 17 00:00:00 2001
From: Marc Di Luzio <marc.diluzio@gmail.com>
Date: Wed, 22 Jul 2020 19:24:36 +0100
Subject: [PATCH 05/13] Rename the world tick function and set the tick rate
 back to default

---
 cmd/rove-server/internal/server.go | 4 ++--
 docker-compose.yml                 | 1 -
 pkg/rove/command_test.go           | 6 +++---
 pkg/rove/world.go                  | 4 ++--
 pkg/rove/world_test.go             | 4 ++--
 5 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/cmd/rove-server/internal/server.go b/cmd/rove-server/internal/server.go
index 102c30d..786eb00 100644
--- a/cmd/rove-server/internal/server.go
+++ b/cmd/rove-server/internal/server.go
@@ -131,8 +131,8 @@ func (s *Server) Run() {
 
 			log.Println("Executing server tick")
 
-			// Run the command queues
-			s.world.ExecuteCommandQueues()
+			// Tick the world
+			s.world.Tick()
 
 			// Save out the new world state
 			if err := s.SaveWorld(); err != nil {
diff --git a/docker-compose.yml b/docker-compose.yml
index 71013b5..509af03 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -15,7 +15,6 @@ services:
       - PORT=9090
       - DATA_PATH=/mnt/rove-server
       - WORDS_FILE=data/words_alpha.txt
-      - TICK_RATE=5
     volumes:
       - persistent-data:/mnt/rove-server:rw
     command: [ "./rove-server"]
diff --git a/pkg/rove/command_test.go b/pkg/rove/command_test.go
index 26c5e56..773b098 100644
--- a/pkg/rove/command_test.go
+++ b/pkg/rove/command_test.go
@@ -18,7 +18,7 @@ func TestCommand_Toggle(t *testing.T) {
 
 	w.Enqueue(a, &roveapi.Command{Command: roveapi.CommandType_toggle})
 	w.EnqueueAllIncoming()
-	w.ExecuteCommandQueues()
+	w.Tick()
 
 	r, err = w.GetRover(a)
 	assert.NoError(t, err)
@@ -26,7 +26,7 @@ func TestCommand_Toggle(t *testing.T) {
 
 	w.Enqueue(a, &roveapi.Command{Command: roveapi.CommandType_toggle})
 	w.EnqueueAllIncoming()
-	w.ExecuteCommandQueues()
+	w.Tick()
 
 	r, err = w.GetRover(a)
 	assert.NoError(t, err)
@@ -40,7 +40,7 @@ func TestCommand_Turn(t *testing.T) {
 
 	w.Enqueue(a, &roveapi.Command{Command: roveapi.CommandType_turn, Turn: roveapi.Bearing_NorthWest})
 	w.EnqueueAllIncoming()
-	w.ExecuteCommandQueues()
+	w.Tick()
 
 	r, err := w.GetRover(a)
 	assert.NoError(t, err)
diff --git a/pkg/rove/world.go b/pkg/rove/world.go
index 5e8483f..e50fa6f 100644
--- a/pkg/rove/world.go
+++ b/pkg/rove/world.go
@@ -464,8 +464,8 @@ func (w *World) EnqueueAllIncoming() {
 	w.CommandIncoming = make(map[string]CommandStream)
 }
 
-// ExecuteCommandQueues will execute any commands in the current command queue
-func (w *World) ExecuteCommandQueues() {
+// Tick will execute any commands in the current command queue and tick the world
+func (w *World) Tick() {
 	w.cmdMutex.Lock()
 	defer w.cmdMutex.Unlock()
 
diff --git a/pkg/rove/world_test.go b/pkg/rove/world_test.go
index ffac1af..785baa2 100644
--- a/pkg/rove/world_test.go
+++ b/pkg/rove/world_test.go
@@ -343,7 +343,7 @@ func TestWorld_Daytime(t *testing.T) {
 	// Loop for half the day
 	for i := 0; i < world.TicksPerDay/2; i++ {
 		assert.True(t, world.Daytime())
-		world.ExecuteCommandQueues()
+		world.Tick()
 	}
 
 	// Remove rover charge again
@@ -359,7 +359,7 @@ func TestWorld_Daytime(t *testing.T) {
 	// Loop for half the day
 	for i := 0; i < world.TicksPerDay/2; i++ {
 		assert.False(t, world.Daytime())
-		world.ExecuteCommandQueues()
+		world.Tick()
 	}
 }
 

From 447dbe358273d0a08b5ec8cbf354a8a0c9d66241 Mon Sep 17 00:00:00 2001
From: Marc Di Luzio <marc.diluzio@gmail.com>
Date: Wed, 22 Jul 2020 19:24:55 +0100
Subject: [PATCH 06/13] Fix a test comment

---
 pkg/rove/command_test.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkg/rove/command_test.go b/pkg/rove/command_test.go
index 773b098..f22f797 100644
--- a/pkg/rove/command_test.go
+++ b/pkg/rove/command_test.go
@@ -60,5 +60,5 @@ func TestCommand_Broadcast(t *testing.T) {
 }
 
 func TestCommand_Invalid(t *testing.T) {
-	// TODO: Test the invalid command
+	// TODO: Test an invalid command
 }

From 9e4276439841be819efe77b4b9ff877cad899a30 Mon Sep 17 00:00:00 2001
From: Marc Di Luzio <marc.diluzio@gmail.com>
Date: Wed, 22 Jul 2020 19:25:32 +0100
Subject: [PATCH 07/13] Update the rover list to a list of pointers

---
 pkg/rove/rover.go |  4 ++--
 pkg/rove/world.go | 15 +++------------
 2 files changed, 5 insertions(+), 14 deletions(-)

diff --git a/pkg/rove/rover.go b/pkg/rove/rover.go
index 36b875f..f1e0972 100644
--- a/pkg/rove/rover.go
+++ b/pkg/rove/rover.go
@@ -62,8 +62,8 @@ type Rover struct {
 }
 
 // DefaultRover returns a default rover object with default settings
-func DefaultRover() Rover {
-	return Rover{
+func DefaultRover() *Rover {
+	return &Rover{
 		Range:            4,
 		Integrity:        10,
 		MaximumIntegrity: 10,
diff --git a/pkg/rove/world.go b/pkg/rove/world.go
index e50fa6f..10fae64 100644
--- a/pkg/rove/world.go
+++ b/pkg/rove/world.go
@@ -22,7 +22,7 @@ type World struct {
 	CurrentTicks int `json:"current-ticks"`
 
 	// Rovers is a id->data map of all the rovers in the game
-	Rovers map[string]Rover `json:"rovers"`
+	Rovers map[string]*Rover `json:"rovers"`
 
 	// Atlas represends the world map of chunks and tiles
 	Atlas Atlas `json:"atlas"`
@@ -41,7 +41,7 @@ type World struct {
 // NewWorld creates a new world object
 func NewWorld(chunkSize int) *World {
 	return &World{
-		Rovers:          make(map[string]Rover),
+		Rovers:          make(map[string]*Rover),
 		CommandQueue:    make(map[string]CommandStream),
 		CommandIncoming: make(map[string]CommandStream),
 		Atlas:           NewChunkAtlas(chunkSize),
@@ -94,7 +94,7 @@ func (w *World) GetRover(rover string) (Rover, error) {
 	if !ok {
 		return Rover{}, fmt.Errorf("Failed to find rover with name: %s", rover)
 	}
-	return i, nil
+	return *i, nil
 }
 
 // RoverRecharge charges up a rover
@@ -117,7 +117,6 @@ func (w *World) RoverRecharge(rover string) (int, error) {
 		i.Charge++
 		i.AddLogEntryf("recharged to %d", i.Charge)
 	}
-	w.Rovers[rover] = i
 
 	return i.Charge, nil
 }
@@ -152,7 +151,6 @@ func (w *World) RoverBroadcast(rover string, message []byte) (err error) {
 	}
 
 	i.AddLogEntryf("broadcasted %s", string(message))
-	w.Rovers[rover] = i
 	return
 }
 
@@ -193,7 +191,6 @@ func (w *World) SetRoverPosition(rover string, pos maths.Vector) error {
 	}
 
 	i.Pos = pos
-	w.Rovers[rover] = i
 	return nil
 }
 
@@ -230,7 +227,6 @@ func (w *World) WarpRover(rover string, pos maths.Vector) error {
 	}
 
 	i.Pos = pos
-	w.Rovers[rover] = i
 	return nil
 }
 
@@ -259,7 +255,6 @@ func (w *World) MoveRover(rover string, b roveapi.Bearing) (maths.Vector, error)
 		i.AddLogEntryf("moved %s to %+v", b.String(), newPos)
 		// Perform the move
 		i.Pos = newPos
-		w.Rovers[rover] = i
 	} else {
 		// If it is a blocking tile, reduce the rover integrity
 		i.AddLogEntryf("tried to move %s to %+v", b.String(), newPos)
@@ -267,8 +262,6 @@ func (w *World) MoveRover(rover string, b roveapi.Bearing) (maths.Vector, error)
 		i.AddLogEntryf("had a collision, new integrity %d", i.Integrity)
 		if i.Integrity == 0 {
 			// TODO: The rover needs to be left dormant with the player
-		} else {
-			w.Rovers[rover] = i
 		}
 	}
 
@@ -303,7 +296,6 @@ func (w *World) RoverStash(rover string) (roveapi.Object, error) {
 
 	r.AddLogEntryf("stashed %c", obj.Type)
 	r.Inventory = append(r.Inventory, obj)
-	w.Rovers[rover] = r
 	w.Atlas.SetObject(r.Pos, Object{Type: roveapi.Object_ObjectUnknown})
 	return obj.Type, nil
 }
@@ -343,7 +335,6 @@ func (w *World) RoverTurn(rover string, bearing roveapi.Bearing) (roveapi.Bearin
 	// Set the new bearing
 	r.Bearing = bearing
 
-	w.Rovers[rover] = r
 	return r.Bearing, nil
 }
 

From 075a502103f5725dabf17478eeff0ed9bd0175d0 Mon Sep 17 00:00:00 2001
From: Marc Di Luzio <marc.diluzio@gmail.com>
Date: Wed, 22 Jul 2020 19:25:47 +0100
Subject: [PATCH 08/13] Pull the repair function out

---
 pkg/rove/world.go | 30 +++++++++++++++++++++---------
 1 file changed, 21 insertions(+), 9 deletions(-)

diff --git a/pkg/rove/world.go b/pkg/rove/world.go
index 10fae64..9d2e27c 100644
--- a/pkg/rove/world.go
+++ b/pkg/rove/world.go
@@ -338,6 +338,26 @@ func (w *World) RoverTurn(rover string, bearing roveapi.Bearing) (roveapi.Bearin
 	return r.Bearing, nil
 }
 
+// RoverRepair will turn the rover
+func (w *World) RoverRepair(rover string) (int, error) {
+	w.worldMutex.Lock()
+	defer w.worldMutex.Unlock()
+
+	r, ok := w.Rovers[rover]
+	if !ok {
+		return 0, fmt.Errorf("no rover matching id")
+	}
+
+	// Consume an inventory item to repair if possible
+	if len(r.Inventory) > 0 && r.Integrity < r.MaximumIntegrity {
+		r.Inventory = r.Inventory[:len(r.Inventory)-1]
+		r.Integrity = r.Integrity + 1
+		r.AddLogEntryf("repaired self to %d", r.Integrity)
+	}
+
+	return r.Integrity, nil
+}
+
 // RadarFromRover can be used to query what a rover can currently see
 func (w *World) RadarFromRover(rover string) (radar []roveapi.Tile, objs []roveapi.Object, err error) {
 	w.worldMutex.RLock()
@@ -501,17 +521,9 @@ func (w *World) ExecuteCommand(c *roveapi.Command, rover string) (err error) {
 		}
 
 	case roveapi.CommandType_repair:
-		r, err := w.GetRover(rover)
-		if err != nil {
+		if _, err := w.RoverRepair(rover); err != nil {
 			return err
 		}
-		// Consume an inventory item to repair if possible
-		if len(r.Inventory) > 0 && r.Integrity < r.MaximumIntegrity {
-			r.Inventory = r.Inventory[:len(r.Inventory)-1]
-			r.Integrity = r.Integrity + 1
-			r.AddLogEntryf("repaired self to %d", r.Integrity)
-			w.Rovers[rover] = r
-		}
 
 	case roveapi.CommandType_broadcast:
 		if err := w.RoverBroadcast(rover, c.GetBroadcast()); err != nil {

From c94ac68f44cb1d86e9303545e6f38cec10c5daaf Mon Sep 17 00:00:00 2001
From: Marc Di Luzio <marc.diluzio@gmail.com>
Date: Wed, 22 Jul 2020 19:55:38 +0100
Subject: [PATCH 09/13] Remove all json tags, simply not needed

---
 cmd/rove-server/internal/accounts.go         |  4 +--
 cmd/rove-server/internal/simpleAccountant.go |  2 +-
 cmd/rove/main.go                             |  8 +++---
 pkg/maths/vector.go                          |  4 +--
 pkg/rove/chunkAtlas.go                       | 12 ++++-----
 pkg/rove/objects.go                          |  4 +--
 pkg/rove/rover.go                            | 28 ++++++++++----------
 pkg/rove/world.go                            | 12 ++++-----
 8 files changed, 37 insertions(+), 37 deletions(-)

diff --git a/cmd/rove-server/internal/accounts.go b/cmd/rove-server/internal/accounts.go
index 99362ad..9ae6db9 100644
--- a/cmd/rove-server/internal/accounts.go
+++ b/cmd/rove-server/internal/accounts.go
@@ -21,8 +21,8 @@ type Accountant interface {
 // Account represents a registered user
 type Account struct {
 	// Name simply describes the account and must be unique
-	Name string `json:"name"`
+	Name string
 
 	// Data represents internal account data
-	Data map[string]string `json:"data"`
+	Data map[string]string
 }
diff --git a/cmd/rove-server/internal/simpleAccountant.go b/cmd/rove-server/internal/simpleAccountant.go
index 3168f30..611ff59 100644
--- a/cmd/rove-server/internal/simpleAccountant.go
+++ b/cmd/rove-server/internal/simpleAccountant.go
@@ -9,7 +9,7 @@ import (
 
 // SimpleAccountant manages a set of accounts
 type SimpleAccountant struct {
-	Accounts map[string]Account `json:"accounts"`
+	Accounts map[string]Account
 }
 
 // NewSimpleAccountant creates a new accountant
diff --git a/cmd/rove/main.go b/cmd/rove/main.go
index 2977baa..01e16ae 100644
--- a/cmd/rove/main.go
+++ b/cmd/rove/main.go
@@ -45,14 +45,14 @@ const gRPCport = 9090
 
 // Account stores data for an account
 type Account struct {
-	Name   string `json:"name"`
-	Secret string `json:"secret"`
+	Name   string
+	Secret string
 }
 
 // Config is used to store internal data
 type Config struct {
-	Host    string  `json:"host,omitempty"`
-	Account Account `json:"account,omitempty"`
+	Host    string
+	Account Account
 }
 
 // ConfigPath returns the configuration path
diff --git a/pkg/maths/vector.go b/pkg/maths/vector.go
index 92305cc..9b9d755 100644
--- a/pkg/maths/vector.go
+++ b/pkg/maths/vector.go
@@ -8,8 +8,8 @@ import (
 
 // Vector desribes a 3D vector
 type Vector struct {
-	X int `json:"x"`
-	Y int `json:"y"`
+	X int
+	Y int
 }
 
 // Add adds one vector to another
diff --git a/pkg/rove/chunkAtlas.go b/pkg/rove/chunkAtlas.go
index f7ea36c..88f1102 100644
--- a/pkg/rove/chunkAtlas.go
+++ b/pkg/rove/chunkAtlas.go
@@ -11,27 +11,27 @@ import (
 // chunk represents a fixed square grid of tiles
 type chunk struct {
 	// Tiles represents the tiles within the chunk
-	Tiles []byte `json:"tiles"`
+	Tiles []byte
 
 	// Objects represents the objects within the chunk
 	// only one possible object per tile for now
-	Objects map[int]Object `json:"objects"`
+	Objects map[int]Object
 }
 
 // chunkBasedAtlas represents a grid of Chunks
 type chunkBasedAtlas struct {
 	// Chunks represents all chunks in the world
 	// This is intentionally not a 2D array so it can be expanded in all directions
-	Chunks []chunk `json:"chunks"`
+	Chunks []chunk
 
 	// LowerBound is the origin of the bottom left corner of the current chunks in world space (current chunks cover >= this value)
-	LowerBound maths.Vector `json:"lowerBound"`
+	LowerBound maths.Vector
 
 	// UpperBound is the top left corner of the current chunks (curent chunks cover < this value)
-	UpperBound maths.Vector `json:"upperBound"`
+	UpperBound maths.Vector
 
 	// ChunkSize is the x/y dimensions of each square chunk
-	ChunkSize int `json:"chunksize"`
+	ChunkSize int
 
 	// worldGen is the internal world generator
 	worldGen WorldGen
diff --git a/pkg/rove/objects.go b/pkg/rove/objects.go
index 94595df..f1ce227 100644
--- a/pkg/rove/objects.go
+++ b/pkg/rove/objects.go
@@ -7,10 +7,10 @@ import (
 // Object represents an object in the world
 type Object struct {
 	// The type of the object
-	Type roveapi.Object `json:"type"`
+	Type roveapi.Object
 
 	// Data is an internal type used for certain types of object
-	Data []byte `json:"data"`
+	Data []byte
 }
 
 // IsBlocking checks if an object is a blocking object
diff --git a/pkg/rove/rover.go b/pkg/rove/rover.go
index f1e0972..0bb9e4e 100644
--- a/pkg/rove/rover.go
+++ b/pkg/rove/rover.go
@@ -16,49 +16,49 @@ import (
 // RoverLogEntry describes a single log entry for the rover
 type RoverLogEntry struct {
 	// Time is the timestamp of the entry
-	Time time.Time `json:"time"`
+	Time time.Time
 
 	// Text contains the information in this log entry
-	Text string `json:"text"`
+	Text string
 }
 
 // Rover describes a single rover in the world
 type Rover struct {
 	// Unique name of this rover
-	Name string `json:"name"`
+	Name string
 
 	// Pos represents where this rover is in the world
-	Pos maths.Vector `json:"pos"`
+	Pos maths.Vector
 
 	// Bearing is the current direction the rover is facing
-	Bearing roveapi.Bearing `json:"bearing"`
+	Bearing roveapi.Bearing
 
 	// Range represents the distance the unit's radar can see
-	Range int `json:"range"`
+	Range int
 
 	// Inventory represents any items the rover is carrying
-	Inventory []Object `json:"inventory"`
+	Inventory []Object
 
 	// Capacity is the maximum number of inventory items
-	Capacity int `json:"capacity"`
+	Capacity int
 
 	// Integrity represents current rover health
-	Integrity int `json:"integrity"`
+	Integrity int
 
 	// MaximumIntegrity is the full integrity of the rover
-	MaximumIntegrity int `json:"maximum-integrity"`
+	MaximumIntegrity int
 
 	// Charge is the amount of energy the rover has
-	Charge int `json:"charge"`
+	Charge int
 
 	// MaximumCharge is the maximum charge able to be stored
-	MaximumCharge int `json:"maximum-charge"`
+	MaximumCharge int
 
 	// SailPosition is the current position of the sails
-	SailPosition roveapi.SailPosition `json:"sail-position"`
+	SailPosition roveapi.SailPosition
 
 	// Logs Stores log of information
-	Logs []RoverLogEntry `json:"logs"`
+	Logs []RoverLogEntry
 }
 
 // DefaultRover returns a default rover object with default settings
diff --git a/pkg/rove/world.go b/pkg/rove/world.go
index 9d2e27c..fa7a0e2 100644
--- a/pkg/rove/world.go
+++ b/pkg/rove/world.go
@@ -16,21 +16,21 @@ type CommandStream []*roveapi.Command
 // World describes a self contained universe and everything in it
 type World struct {
 	// TicksPerDay is the amount of ticks in a single day
-	TicksPerDay int `json:"ticks-per-day"`
+	TicksPerDay int
 
 	// Current number of ticks from the start
-	CurrentTicks int `json:"current-ticks"`
+	CurrentTicks int
 
 	// Rovers is a id->data map of all the rovers in the game
-	Rovers map[string]*Rover `json:"rovers"`
+	Rovers map[string]*Rover
 
 	// Atlas represends the world map of chunks and tiles
-	Atlas Atlas `json:"atlas"`
+	Atlas Atlas
 
 	// Commands is the set of currently executing command streams per rover
-	CommandQueue map[string]CommandStream `json:"commands"`
+	CommandQueue map[string]CommandStream
 	// Incoming represents the set of commands to add to the queue at the end of the current tick
-	CommandIncoming map[string]CommandStream `json:"incoming"`
+	CommandIncoming map[string]CommandStream
 
 	// Mutex to lock around all world operations
 	worldMutex sync.RWMutex

From c89c5f6e74a3c87776108ec4765b36b976d72d45 Mon Sep 17 00:00:00 2001
From: Marc Di Luzio <marc.diluzio@gmail.com>
Date: Wed, 22 Jul 2020 23:36:13 +0100
Subject: [PATCH 10/13] Implement current wind direction and rover wind
 movement

---
 cmd/rove-server/internal/routes.go |   1 +
 pkg/maths/vector.go                |  10 ++
 pkg/rove/rover.go                  |   3 +
 pkg/rove/world.go                  |  82 ++++++++++++++--
 pkg/rove/world_test.go             |  46 +--------
 proto/roveapi/roveapi.pb.go        | 148 ++++++++++++++++-------------
 proto/roveapi/roveapi.proto        |   3 +
 7 files changed, 174 insertions(+), 119 deletions(-)

diff --git a/cmd/rove-server/internal/routes.go b/cmd/rove-server/internal/routes.go
index 02a7483..6cb5a99 100644
--- a/cmd/rove-server/internal/routes.go
+++ b/cmd/rove-server/internal/routes.go
@@ -102,6 +102,7 @@ func (s *Server) Status(ctx context.Context, req *roveapi.StatusRequest) (respon
 			QueuedCommands:   queued,
 			SailPosition:     rover.SailPosition,
 			Logs:             logs,
+			Wind:             s.world.Wind,
 		}
 	}
 	return response, nil
diff --git a/pkg/maths/vector.go b/pkg/maths/vector.go
index 9b9d755..a74ff16 100644
--- a/pkg/maths/vector.go
+++ b/pkg/maths/vector.go
@@ -107,3 +107,13 @@ func BearingToVector(b roveapi.Bearing) Vector {
 
 	return Vector{}
 }
+
+// Dot returns the dot product of two vectors
+func Dot(a Vector, b Vector) int {
+	return a.X*b.X + a.Y*b.Y
+}
+
+// AngleCos returns the cosine of the angle between two vectors
+func AngleCos(a Vector, b Vector) float64 {
+	return float64(Dot(a, b)) / a.Length() * b.Length()
+}
diff --git a/pkg/rove/rover.go b/pkg/rove/rover.go
index 0bb9e4e..fb13ddc 100644
--- a/pkg/rove/rover.go
+++ b/pkg/rove/rover.go
@@ -57,6 +57,9 @@ type Rover struct {
 	// SailPosition is the current position of the sails
 	SailPosition roveapi.SailPosition
 
+	// Current number of ticks in this move, used for sailing speeds
+	MoveTicks int
+
 	// Logs Stores log of information
 	Logs []RoverLogEntry
 }
diff --git a/pkg/rove/world.go b/pkg/rove/world.go
index fa7a0e2..0265951 100644
--- a/pkg/rove/world.go
+++ b/pkg/rove/world.go
@@ -10,11 +10,16 @@ import (
 	"github.com/mdiluz/rove/proto/roveapi"
 )
 
+const (
+	TicksPerNormalMove = 4
+)
+
 // CommandStream is a list of commands to execute in order
 type CommandStream []*roveapi.Command
 
 // World describes a self contained universe and everything in it
 type World struct {
+
 	// TicksPerDay is the amount of ticks in a single day
 	TicksPerDay int
 
@@ -27,6 +32,9 @@ type World struct {
 	// Atlas represends the world map of chunks and tiles
 	Atlas Atlas
 
+	// Wind is the current wind direction
+	Wind roveapi.Bearing
+
 	// Commands is the set of currently executing command streams per rover
 	CommandQueue map[string]CommandStream
 	// Incoming represents the set of commands to add to the queue at the end of the current tick
@@ -230,8 +238,8 @@ func (w *World) WarpRover(rover string, pos maths.Vector) error {
 	return nil
 }
 
-// MoveRover attempts to move a rover in a specific direction
-func (w *World) MoveRover(rover string, b roveapi.Bearing) (maths.Vector, error) {
+// TryMoveRover attempts to move a rover in a specific direction
+func (w *World) TryMoveRover(rover string, b roveapi.Bearing) (maths.Vector, error) {
 	w.worldMutex.Lock()
 	defer w.worldMutex.Unlock()
 
@@ -240,12 +248,6 @@ func (w *World) MoveRover(rover string, b roveapi.Bearing) (maths.Vector, error)
 		return maths.Vector{}, fmt.Errorf("no rover matching id")
 	}
 
-	// Ensure the rover has energy
-	if i.Charge <= 0 {
-		return i.Pos, nil
-	}
-	i.Charge--
-
 	// Try the new move position
 	newPos := i.Pos.Added(maths.BearingToVector(b))
 
@@ -318,7 +320,9 @@ func (w *World) RoverToggle(rover string) (roveapi.SailPosition, error) {
 		r.SailPosition = roveapi.SailPosition_CatchingWind
 	}
 
-	w.Rovers[rover] = r
+	// Reset the movement ticks
+	r.MoveTicks = 0
+
 	return r.SailPosition, nil
 }
 
@@ -334,6 +338,8 @@ func (w *World) RoverTurn(rover string, bearing roveapi.Bearing) (roveapi.Bearin
 
 	// Set the new bearing
 	r.Bearing = bearing
+	// Reset the movement ticks
+	r.MoveTicks = 0
 
 	return r.Bearing, nil
 }
@@ -502,6 +508,64 @@ func (w *World) Tick() {
 	// Add any incoming commands from this tick and clear that queue
 	w.EnqueueAllIncoming()
 
+	// Change the wind every day
+	if (w.CurrentTicks % w.TicksPerDay) == 0 {
+		w.Wind = roveapi.Bearing((rand.Int() % 8) + 1) // Random cardinal bearing
+	}
+
+	// Move all the rovers based on current wind and sails
+	for n, r := range w.Rovers {
+		// Skip if we're not catching the wind
+		if r.SailPosition != roveapi.SailPosition_CatchingWind {
+			continue
+		}
+
+		// Increment the current move ticks
+		r.MoveTicks++
+
+		// Get the difference between the two bearings
+		// Normalise, we don't care about clockwise/anticlockwise
+		diff := maths.Abs(int(w.Wind - r.Bearing))
+		if diff > 4 {
+			diff = 8 - diff
+		}
+
+		// Calculate the travel "ticks"
+		var ticksToMove int
+		switch diff {
+		case 0:
+			// Going with the wind, travel at base speed of once every 4 ticks
+			ticksToMove = TicksPerNormalMove
+		case 1:
+			// At a slight angle, we can go a little faster
+			ticksToMove = TicksPerNormalMove / 2
+		case 2:
+			// Perpendicular to wind, max speed
+			ticksToMove = 1
+		case 3:
+			// Heading at 45 degrees into the wind, back to min speed
+			ticksToMove = TicksPerNormalMove
+		case 4:
+			// Heading durectly into the wind, no movement at all
+		default:
+			log.Fatalf("bearing difference of %d should be impossible", diff)
+		}
+
+		// If we've incremented over the current move ticks on the rover, we can try and make the move
+		if r.MoveTicks >= ticksToMove {
+			_, err := w.TryMoveRover(n, r.Bearing)
+			if err != nil {
+				log.Println(err)
+				// TODO: Report this error somehow
+			}
+
+			// Reset the move ticks
+			r.MoveTicks = 0
+		}
+
+		log.Print(ticksToMove)
+	}
+
 	// Increment the current tick count
 	w.CurrentTicks++
 }
diff --git a/pkg/rove/world_test.go b/pkg/rove/world_test.go
index 785baa2..2dbcc86 100644
--- a/pkg/rove/world_test.go
+++ b/pkg/rove/world_test.go
@@ -78,25 +78,20 @@ func TestWorld_GetSetMovePosition(t *testing.T) {
 	assert.Equal(t, pos, newPos, "Failed to correctly set position for rover")
 
 	b := roveapi.Bearing_North
-	newPos, err = world.MoveRover(a, b)
+	newPos, err = world.TryMoveRover(a, b)
 	assert.NoError(t, err, "Failed to set position for rover")
 	pos.Add(maths.Vector{X: 0, Y: 1})
 	assert.Equal(t, pos, newPos, "Failed to correctly move position for rover")
 
 	rover, err := world.GetRover(a)
 	assert.NoError(t, err, "Failed to get rover information")
-	assert.Equal(t, rover.MaximumCharge-1, rover.Charge, "Rover should have lost charge for moving")
 	assert.Contains(t, rover.Logs[len(rover.Logs)-1].Text, "moved", "Rover logs should contain the move")
 
 	// Place a tile in front of the rover
 	world.Atlas.SetObject(maths.Vector{X: 0, Y: 2}, Object{Type: roveapi.Object_RockLarge})
-	newPos, err = world.MoveRover(a, b)
+	newPos, err = world.TryMoveRover(a, b)
 	assert.NoError(t, err, "Failed to move rover")
 	assert.Equal(t, pos, newPos, "Failed to correctly not move position for rover into wall")
-
-	rover, err = world.GetRover(a)
-	assert.NoError(t, err, "Failed to get rover information")
-	assert.Equal(t, rover.MaximumCharge-2, rover.Charge, "Rover should have lost charge for move attempt")
 }
 
 func TestWorld_RadarFromRover(t *testing.T) {
@@ -224,7 +219,7 @@ func TestWorld_RoverDamage(t *testing.T) {
 
 	world.Atlas.SetObject(maths.Vector{X: 0.0, Y: 1.0}, Object{Type: roveapi.Object_RockLarge})
 
-	vec, err := world.MoveRover(a, roveapi.Bearing_North)
+	vec, err := world.TryMoveRover(a, roveapi.Bearing_North)
 	assert.NoError(t, err, "Failed to move rover")
 	assert.Equal(t, pos, vec, "Rover managed to move into large rock")
 
@@ -261,7 +256,7 @@ func TestWorld_RoverRepair(t *testing.T) {
 	world.Atlas.SetObject(maths.Vector{X: 0.0, Y: 1.0}, Object{Type: roveapi.Object_RockLarge})
 
 	// Try and bump into the rock
-	vec, err := world.MoveRover(a, roveapi.Bearing_North)
+	vec, err := world.TryMoveRover(a, roveapi.Bearing_North)
 	assert.NoError(t, err, "Failed to move rover")
 	assert.Equal(t, pos, vec, "Rover managed to move into large rock")
 
@@ -291,39 +286,6 @@ func TestWorld_RoverRepair(t *testing.T) {
 	assert.Equal(t, originalInfo.Integrity, newinfo.Integrity, "rover should have kept the same integrity")
 }
 
-func TestWorld_Charge(t *testing.T) {
-	world := NewWorld(4)
-	a, err := world.SpawnRover()
-	assert.NoError(t, err)
-
-	// Get the rover information
-	rover, err := world.GetRover(a)
-	assert.NoError(t, err, "Failed to get rover information")
-	assert.Equal(t, rover.MaximumCharge, rover.Charge, "Rover should start with maximum charge")
-
-	// Use up all the charge
-	for i := 0; i < rover.MaximumCharge; i++ {
-		// Get the initial position
-		initialPos, err := world.RoverPosition(a)
-		assert.NoError(t, err, "Failed to get position for rover")
-
-		// Ensure the path ahead is empty
-		world.Atlas.SetTile(initialPos.Added(maths.BearingToVector(roveapi.Bearing_North)), roveapi.Tile_Rock)
-		world.Atlas.SetObject(initialPos.Added(maths.BearingToVector(roveapi.Bearing_North)), Object{Type: roveapi.Object_ObjectUnknown})
-
-		// Try and move north (along unblocked path)
-		newPos, err := world.MoveRover(a, roveapi.Bearing_North)
-		assert.NoError(t, err, "Failed to set position for rover")
-		assert.Equal(t, initialPos.Added(maths.BearingToVector(roveapi.Bearing_North)), newPos, "Failed to correctly move position for rover")
-
-		// Ensure rover lost charge
-		rover, err := world.GetRover(a)
-		assert.NoError(t, err, "Failed to get rover information")
-		assert.Equal(t, rover.MaximumCharge-(i+1), rover.Charge, "Rover should have lost charge")
-	}
-
-}
-
 func TestWorld_Daytime(t *testing.T) {
 	world := NewWorld(1)
 
diff --git a/proto/roveapi/roveapi.pb.go b/proto/roveapi/roveapi.pb.go
index 51a886f..a9bf133 100644
--- a/proto/roveapi/roveapi.pb.go
+++ b/proto/roveapi/roveapi.pb.go
@@ -1095,6 +1095,8 @@ type StatusResponse struct {
 	QueuedCommands []*Command `protobuf:"bytes,13,rep,name=queuedCommands,proto3" json:"queuedCommands,omitempty"`
 	// The most recent logs
 	Logs []*Log `protobuf:"bytes,14,rep,name=logs,proto3" json:"logs,omitempty"`
+	// The current wind direction
+	Wind Bearing `protobuf:"varint,15,opt,name=wind,proto3,enum=roveapi.Bearing" json:"wind,omitempty"`
 }
 
 func (x *StatusResponse) Reset() {
@@ -1227,6 +1229,13 @@ func (x *StatusResponse) GetLogs() []*Log {
 	return nil
 }
 
+func (x *StatusResponse) GetWind() Bearing {
+	if x != nil {
+		return x.Wind
+	}
+	return Bearing_BearingUnknown
+}
+
 var File_roveapi_roveapi_proto protoreflect.FileDescriptor
 
 var file_roveapi_roveapi_proto_rawDesc = []byte{
@@ -1289,7 +1298,7 @@ var file_roveapi_roveapi_proto_rawDesc = []byte{
 	0x6d, 0x65, 0x12, 0x12, 0x0a, 0x04, 0x74, 0x65, 0x78, 0x74, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09,
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@@ -1324,59 +1333,61 @@ var file_roveapi_roveapi_proto_rawDesc = []byte{
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+	0x69, 0x6c, 0x75, 0x7a, 0x2f, 0x72, 0x6f, 0x76, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f,
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 }
 
 var (
@@ -1430,21 +1441,22 @@ var file_roveapi_roveapi_proto_depIdxs = []int32{
 	10, // 12: roveapi.StatusResponse.incomingCommands:type_name -> roveapi.Command
 	10, // 13: roveapi.StatusResponse.queuedCommands:type_name -> roveapi.Command
 	16, // 14: roveapi.StatusResponse.logs:type_name -> roveapi.Log
-	5,  // 15: roveapi.Rove.ServerStatus:input_type -> roveapi.ServerStatusRequest
-	7,  // 16: roveapi.Rove.Register:input_type -> roveapi.RegisterRequest
-	11, // 17: roveapi.Rove.Command:input_type -> roveapi.CommandRequest
-	13, // 18: roveapi.Rove.Radar:input_type -> roveapi.RadarRequest
-	15, // 19: roveapi.Rove.Status:input_type -> roveapi.StatusRequest
-	6,  // 20: roveapi.Rove.ServerStatus:output_type -> roveapi.ServerStatusResponse
-	9,  // 21: roveapi.Rove.Register:output_type -> roveapi.RegisterResponse
-	12, // 22: roveapi.Rove.Command:output_type -> roveapi.CommandResponse
-	14, // 23: roveapi.Rove.Radar:output_type -> roveapi.RadarResponse
-	18, // 24: roveapi.Rove.Status:output_type -> roveapi.StatusResponse
-	20, // [20:25] is the sub-list for method output_type
-	15, // [15:20] is the sub-list for method input_type
-	15, // [15:15] is the sub-list for extension type_name
-	15, // [15:15] is the sub-list for extension extendee
-	0,  // [0:15] is the sub-list for field type_name
+	1,  // 15: roveapi.StatusResponse.wind:type_name -> roveapi.Bearing
+	5,  // 16: roveapi.Rove.ServerStatus:input_type -> roveapi.ServerStatusRequest
+	7,  // 17: roveapi.Rove.Register:input_type -> roveapi.RegisterRequest
+	11, // 18: roveapi.Rove.Command:input_type -> roveapi.CommandRequest
+	13, // 19: roveapi.Rove.Radar:input_type -> roveapi.RadarRequest
+	15, // 20: roveapi.Rove.Status:input_type -> roveapi.StatusRequest
+	6,  // 21: roveapi.Rove.ServerStatus:output_type -> roveapi.ServerStatusResponse
+	9,  // 22: roveapi.Rove.Register:output_type -> roveapi.RegisterResponse
+	12, // 23: roveapi.Rove.Command:output_type -> roveapi.CommandResponse
+	14, // 24: roveapi.Rove.Radar:output_type -> roveapi.RadarResponse
+	18, // 25: roveapi.Rove.Status:output_type -> roveapi.StatusResponse
+	21, // [21:26] is the sub-list for method output_type
+	16, // [16:21] is the sub-list for method input_type
+	16, // [16:16] is the sub-list for extension type_name
+	16, // [16:16] is the sub-list for extension extendee
+	0,  // [0:16] is the sub-list for field type_name
 }
 
 func init() { file_roveapi_roveapi_proto_init() }
diff --git a/proto/roveapi/roveapi.proto b/proto/roveapi/roveapi.proto
index 9ca09d8..c45f29c 100644
--- a/proto/roveapi/roveapi.proto
+++ b/proto/roveapi/roveapi.proto
@@ -274,4 +274,7 @@ message StatusResponse {
 
   // The most recent logs
   repeated Log logs = 14;
+
+  // The current wind direction
+  Bearing wind = 15;
 }
\ No newline at end of file

From 5d80cb2596848ea6d745d33dfb5deae4b40bcf5c Mon Sep 17 00:00:00 2001
From: Marc Di Luzio <marc.diluzio@gmail.com>
Date: Wed, 22 Jul 2020 23:50:42 +0100
Subject: [PATCH 11/13] Implement sailing tests and fix into-the-wind bug

---
 pkg/rove/world.go      |  2 +-
 pkg/rove/world_test.go | 78 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 79 insertions(+), 1 deletion(-)

diff --git a/pkg/rove/world.go b/pkg/rove/world.go
index 0265951..b8464aa 100644
--- a/pkg/rove/world.go
+++ b/pkg/rove/world.go
@@ -552,7 +552,7 @@ func (w *World) Tick() {
 		}
 
 		// If we've incremented over the current move ticks on the rover, we can try and make the move
-		if r.MoveTicks >= ticksToMove {
+		if ticksToMove != 0 && r.MoveTicks >= ticksToMove {
 			_, err := w.TryMoveRover(n, r.Bearing)
 			if err != nil {
 				log.Println(err)
diff --git a/pkg/rove/world_test.go b/pkg/rove/world_test.go
index 2dbcc86..a3c2f47 100644
--- a/pkg/rove/world_test.go
+++ b/pkg/rove/world_test.go
@@ -388,3 +388,81 @@ func TestWorld_Broadcast(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Contains(t, rb.Logs[len(rb.Logs)-1].Text, "HJK", "Rover A should have logged it's broadcast")
 }
+
+func TestWorld_Sailing(t *testing.T) {
+	world := NewWorld(8)
+	world.Tick()                       // One initial tick to set the wind direction the first time
+	world.Wind = roveapi.Bearing_North // Set the wind direction to north
+
+	name, err := world.SpawnRover()
+	assert.NoError(t, err)
+
+	// Warp the rover to 0,0 after clearing it
+	world.Atlas.SetObject(maths.Vector{X: 0, Y: 0}, Object{Type: roveapi.Object_ObjectUnknown})
+	assert.NoError(t, world.WarpRover(name, maths.Vector{X: 0, Y: 0}))
+
+	s, err := world.RoverToggle(name)
+	assert.NoError(t, err)
+	assert.Equal(t, roveapi.SailPosition_CatchingWind, s)
+
+	b, err := world.RoverTurn(name, roveapi.Bearing_North)
+	assert.NoError(t, err)
+	assert.Equal(t, roveapi.Bearing_North, b)
+
+	// Clear the space to the north
+	world.Atlas.SetObject(maths.Vector{X: 0, Y: 1}, Object{Type: roveapi.Object_ObjectUnknown})
+
+	// Tick the world and check we've moved not moved
+	world.Tick()
+	info, err := world.GetRover(name)
+	assert.NoError(t, err)
+	assert.Equal(t, maths.Vector{Y: 0}, info.Pos)
+
+	// Loop a few more times
+	for i := 0; i < TicksPerNormalMove-2; i++ {
+		world.Tick()
+		info, err := world.GetRover(name)
+		assert.NoError(t, err)
+		assert.Equal(t, maths.Vector{Y: 0}, info.Pos)
+	}
+
+	// Now check we've moved (after the TicksPerNormalMove number of ticks)
+	world.Tick()
+	info, err = world.GetRover(name)
+	assert.NoError(t, err)
+	assert.Equal(t, maths.Vector{Y: 1}, info.Pos)
+
+	// Reset the world ticks back to stop any wind changes etc.
+	world.CurrentTicks = 1
+
+	// Face the rover south, into the wind
+	b, err = world.RoverTurn(name, roveapi.Bearing_South)
+	assert.NoError(t, err)
+	assert.Equal(t, roveapi.Bearing_South, b)
+
+	// Tick a bunch, we should never move
+	for i := 0; i < TicksPerNormalMove*2; i++ {
+		world.Tick()
+		info, err := world.GetRover(name)
+		assert.NoError(t, err)
+		assert.Equal(t, maths.Vector{Y: 1}, info.Pos)
+	}
+
+	// Reset the world ticks back to stop any wind changes etc.
+	world.CurrentTicks = 1
+	world.Wind = roveapi.Bearing_SouthEast // Set up a south easternly wind
+
+	// Turn the rover perpendicular
+	b, err = world.RoverTurn(name, roveapi.Bearing_NorthEast)
+	assert.NoError(t, err)
+	assert.Equal(t, roveapi.Bearing_NorthEast, b)
+
+	// Clear a space
+	world.Atlas.SetObject(maths.Vector{X: 1, Y: 2}, Object{Type: roveapi.Object_ObjectUnknown})
+
+	// Now check we've moved immediately
+	world.Tick()
+	info, err = world.GetRover(name)
+	assert.NoError(t, err)
+	assert.Equal(t, maths.Vector{X: 1, Y: 2}, info.Pos)
+}

From 1e18610c5c7322cd1ba13653e92d6d0efd40ae2a Mon Sep 17 00:00:00 2001
From: Marc Di Luzio <marc.diluzio@gmail.com>
Date: Wed, 22 Jul 2020 23:57:22 +0100
Subject: [PATCH 12/13] Set tick rate to 3

---
 docker-compose.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/docker-compose.yml b/docker-compose.yml
index 509af03..f1962a9 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -15,6 +15,7 @@ services:
       - PORT=9090
       - DATA_PATH=/mnt/rove-server
       - WORDS_FILE=data/words_alpha.txt
+      - TICK_RATE=3
     volumes:
       - persistent-data:/mnt/rove-server:rw
     command: [ "./rove-server"]

From 6adc652cea8becdc6cebef2ba35a133857b2115f Mon Sep 17 00:00:00 2001
From: Marc Di Luzio <marc.diluzio@gmail.com>
Date: Wed, 22 Jul 2020 23:59:28 +0100
Subject: [PATCH 13/13] Fix lint errors

---
 pkg/rove/command_test.go | 9 ++++++---
 pkg/rove/world.go        | 6 +++---
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/pkg/rove/command_test.go b/pkg/rove/command_test.go
index f22f797..536f656 100644
--- a/pkg/rove/command_test.go
+++ b/pkg/rove/command_test.go
@@ -16,7 +16,8 @@ func TestCommand_Toggle(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, roveapi.SailPosition_SolarCharging, r.SailPosition)
 
-	w.Enqueue(a, &roveapi.Command{Command: roveapi.CommandType_toggle})
+	err = w.Enqueue(a, &roveapi.Command{Command: roveapi.CommandType_toggle})
+	assert.NoError(t, err)
 	w.EnqueueAllIncoming()
 	w.Tick()
 
@@ -24,7 +25,8 @@ func TestCommand_Toggle(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, roveapi.SailPosition_CatchingWind, r.SailPosition)
 
-	w.Enqueue(a, &roveapi.Command{Command: roveapi.CommandType_toggle})
+	err = w.Enqueue(a, &roveapi.Command{Command: roveapi.CommandType_toggle})
+	assert.NoError(t, err)
 	w.EnqueueAllIncoming()
 	w.Tick()
 
@@ -38,7 +40,8 @@ func TestCommand_Turn(t *testing.T) {
 	a, err := w.SpawnRover()
 	assert.NoError(t, err)
 
-	w.Enqueue(a, &roveapi.Command{Command: roveapi.CommandType_turn, Turn: roveapi.Bearing_NorthWest})
+	err = w.Enqueue(a, &roveapi.Command{Command: roveapi.CommandType_turn, Turn: roveapi.Bearing_NorthWest})
+	assert.NoError(t, err)
 	w.EnqueueAllIncoming()
 	w.Tick()
 
diff --git a/pkg/rove/world.go b/pkg/rove/world.go
index b8464aa..1fa166d 100644
--- a/pkg/rove/world.go
+++ b/pkg/rove/world.go
@@ -262,9 +262,9 @@ func (w *World) TryMoveRover(rover string, b roveapi.Bearing) (maths.Vector, err
 		i.AddLogEntryf("tried to move %s to %+v", b.String(), newPos)
 		i.Integrity = i.Integrity - 1
 		i.AddLogEntryf("had a collision, new integrity %d", i.Integrity)
-		if i.Integrity == 0 {
-			// TODO: The rover needs to be left dormant with the player
-		}
+		// TODO: The rover needs to be left dormant with the player
+		//if i.Integrity == 0 {
+		//}
 	}
 
 	return i.Pos, nil