Update README.md

Assorted gameplay improvements from play testing

Makefile

@@ -18,12 +18,9 @@ gen:
 	protoc --proto_path proto --go_out=plugins=grpc,paths=source_relative:proto/ proto/roveapi/roveapi.proto
 
 test:
-	@echo Unit tests
+	@echo Run unit and integration tests
-	go test -v ./...
+	docker-compose -f docker-compose-test.yml up --build --exit-code-from=rove-tests --abort-on-container-exit rove-tests
-
+	docker-compose -f docker-compose-test.yml down
-	@echo Integration tests
-	docker-compose up --build --exit-code-from=rove-tests --abort-on-container-exit rove-tests
-	docker-compose down
 	go tool cover -html=/tmp/coverage-data/c.out -o /tmp/coverage.html
 	
 	@echo Done, coverage data can be found in /tmp/coverage.html

README.md

@@ -1,9 +1,8 @@
 Rove
 ====
-![Tests](https://github.com/mdiluz/rove/workflows/Tests/badge.svg) ![Docker](https://github.com/mdiluz/rove/workflows/Docker/badge.svg) [![rove](https://snapcraft.io//rove/badge.svg)](https://snapcraft.io/rove)
 
-![Rove](https://github.com/mdiluz/rove/blob/master/data/icon.svg)
+![Rove](data/icon.svg)
 
 Rove is an asynchronous nomadic game about exploring as part of a loose community.
 
-This repository contains the source code for the `rove-server` deployment and the `rove` command line client. See [mdiluz.github.io/rove](https://mdiluz.github.io/rove/) for game details, and [roveapi.proto](https://github.com/mdiluz/rove/blob/master/proto/roveapi/roveapi.proto) for the current server-client API.
+This repository contains the source code for the `rove-server` deployment and the `rove` command line client. See [mdiluz.github.io/rove](https://mdiluz.github.io/rove/) for game details, and [roveapi.proto](proto/roveapi/roveapi.proto) for the current server-client API.

cmd/rove-server/internal/server.go

@@ -4,6 +4,8 @@ import (
 	"fmt"
 	"log"
 	"net"
+	"os"
+	"path"
 	"sync"
 
 	"github.com/mdiluz/rove/pkg/persistence"
@@ -11,8 +13,12 @@ import (
 	"github.com/mdiluz/rove/proto/roveapi"
 	"github.com/robfig/cron"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/reflection"
 )
 
+var cert = os.Getenv("CERT_NAME")
+
 const (
 	// PersistentData will allow the server to load and save it's state
 	PersistentData = iota
@@ -103,8 +109,22 @@ func (s *Server) Initialise(fillWorld bool) (err error) {
 	if err != nil {
 		log.Fatalf("failed to listen: %v", err)
 	}
-	s.grpcServ = grpc.NewServer()
+
+	// Load TLS
+	var opts []grpc.ServerOption
+	if len(os.Getenv("NO_TLS")) == 0 {
+		pem := path.Join("/etc/letsencrypt/live/", cert, "fullchain.pem")
+		key := path.Join("/etc/letsencrypt/live/", cert, "privkey.pem")
+		creds, err := credentials.NewServerTLSFromFile(pem, key)
+		if err != nil {
+			log.Fatalf("failed to setup TLS: %v", err)
+		}
+		opts = append(opts, grpc.Creds(creds))
+	}
+
+	s.grpcServ = grpc.NewServer(opts...)
 	roveapi.RegisterRoveServer(s.grpcServ, s)
+	reflection.Register(s.grpcServ)
 
 	return nil
 }

cmd/rove-server/internal/server_test.go

@@ -1,6 +1,7 @@
 package internal
 
 import (
+	"os"
 	"testing"
 )
 
@@ -30,6 +31,7 @@ func TestNewServer_OptionPersistentData(t *testing.T) {
 }
 
 func TestServer_Run(t *testing.T) {
+	os.Setenv("NO_TLS", "1")
 	server := NewServer()
 	if server == nil {
 		t.Error("Failed to create server")
@@ -45,6 +47,7 @@ func TestServer_Run(t *testing.T) {
 }
 
 func TestServer_RunPersistentData(t *testing.T) {
+	os.Setenv("NO_TLS", "1")
 	server := NewServer(OptionPersistentData())
 	if server == nil {
 		t.Error("Failed to create server")

cmd/rove/internal/glyph.go

@@ -25,6 +25,9 @@ const (
 	// GlyphRoverDormant represents a dormant rover
 	GlyphRoverDormant = Glyph('r')
 
+	// GlyphRoverParts represents spare rover parts
+	GlyphRoverParts = Glyph('*')
+
 	// GlyphRockSmall is a small stashable rock
 	GlyphRockSmall = Glyph('o')
 
@@ -58,6 +61,8 @@ func ObjectGlyph(o roveapi.Object) Glyph {
 		return GlyphRoverDormant
 	case roveapi.Object_RockLarge:
 		return GlyphRockLarge
+	case roveapi.Object_RoverParts:
+		return GlyphRoverParts
 	}
 
 	log.Fatalf("Unknown object type: %c", o)

cmd/rove/main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"crypto/tls"
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
@@ -8,6 +9,7 @@ import (
 	"os"
 	"path"
 	"path/filepath"
+	"strconv"
 	"time"
 
 	"github.com/mdiluz/rove/cmd/rove/internal"
@@ -15,6 +17,7 @@ import (
 	"github.com/mdiluz/rove/proto/roveapi"
 	"golang.org/x/net/context"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials"
 )
 
 var home = os.Getenv("HOME")
@@ -22,24 +25,30 @@ var defaultDataPath = path.Join(home, ".local/share/")
 
 // Command usage
 func printUsage() {
-	fmt.Fprintf(os.Stderr, "Usage: rove COMMAND [ARGS...]\n")
+	fmt.Fprintln(os.Stderr, "Usage: rove ARG [OPT...]")
-	fmt.Fprintln(os.Stderr, "\nCommands")
+	fmt.Fprintf(os.Stderr, "\n")
-	fmt.Fprintln(os.Stderr, "\tserver-status              prints the server status")
+	fmt.Fprintln(os.Stderr, "Arguments:")
-	fmt.Fprintln(os.Stderr, "\tregister NAME              registers an account and stores it (use with -name)")
+	fmt.Fprintln(os.Stderr, "\tversion                       outputs version")
-	fmt.Fprintln(os.Stderr, "\tcommand COMMAND [VAL...]   issue commands to rover, accepts multiple, see below")
+	fmt.Fprintln(os.Stderr, "\thelp                          outputs this usage text")
-	fmt.Fprintln(os.Stderr, "\tradar                      gathers radar data for the current rover")
+	fmt.Fprintln(os.Stderr, "\tconfig [HOST]                 outputs the local config, optionally sets host")
-	fmt.Fprintln(os.Stderr, "\tstatus                     gets status info for current rover")
+	fmt.Fprintln(os.Stderr, "\tserver-status                 prints the server status")
-	fmt.Fprintln(os.Stderr, "\tconfig [HOST]              outputs the local config info, optionally sets host")
+	fmt.Fprintln(os.Stderr, "\tregister NAME                 registers an account and spawns a rover")
-	fmt.Fprintln(os.Stderr, "\thelp                       outputs this usage information")
+	fmt.Fprintln(os.Stderr, "\tradar                         prints radar data in ASCII form")
-	fmt.Fprintln(os.Stderr, "\tversion                    outputs version info")
+	fmt.Fprintln(os.Stderr, "\tstatus                        gets rover status")
-	fmt.Fprintln(os.Stderr, "\nRover commands:")
+	fmt.Fprintln(os.Stderr, "\tcommand CMD [VAL...] [REPEAT] sets the command queue, accepts multiple in sequence")
-	fmt.Fprintln(os.Stderr, "\ttoggle                     toggles the sails, either catching the wind, or charging from the sun")
+	fmt.Fprintf(os.Stderr, "\n")
-	fmt.Fprintln(os.Stderr, "\tstash                      stores the object at the rover location in the inventory")
+	fmt.Fprintln(os.Stderr, "Rover commands:")
-	fmt.Fprintln(os.Stderr, "\trepair                     uses an inventory object to repair the rover")
+	fmt.Fprintln(os.Stderr, "\ttoggle         toggles the current sail mode")
-	fmt.Fprintln(os.Stderr, "\tbroadcast MSG              broadcast a simple ASCII triplet to nearby rovers")
+	fmt.Fprintln(os.Stderr, "\tstash          stores the object at the rover location in the inventory")
-	fmt.Fprintln(os.Stderr, "\tsalvage                    salvages a dormant rover for parts")
+	fmt.Fprintln(os.Stderr, "\trepair         repairs the rover using inventory item")
-	fmt.Fprintln(os.Stderr, "\nEnvironment")
+	fmt.Fprintln(os.Stderr, "\tbroadcast MSG  broadcast a simple ASCII triplet to nearby rovers")
-	fmt.Fprintln(os.Stderr, "\tROVE_USER_DATA             path to user data, defaults to "+defaultDataPath)
+	fmt.Fprintln(os.Stderr, "\tsalvage        salvages a dormant rover for parts")
+	fmt.Fprintln(os.Stderr, "\ttransfer       transfer's control into a dormant rover")
+	fmt.Fprintln(os.Stderr, "\tupgrade SPEC   spends rover parts to upgrade one rover spec (capacity, range, integrity, charge")
+	fmt.Fprintln(os.Stderr, "\twait           waits before performing the next command")
+	fmt.Fprintf(os.Stderr, "\n")
+	fmt.Fprintln(os.Stderr, "Environment")
+	fmt.Fprintln(os.Stderr, "\tROVE_USER_DATA        path to user data, defaults to "+defaultDataPath)
 }
 
 const gRPCport = 9090
@@ -179,8 +188,15 @@ func InnerMain(command string, args ...string) error {
 		return fmt.Errorf("no host set in %s, set one with '%s config {HOST}'", ConfigPath(), os.Args[0])
 	}
 
+	var opts []grpc.DialOption
+	if len(os.Getenv("NO_TLS")) == 0 {
+		opts = append(opts, grpc.WithTransportCredentials(credentials.NewTLS(&tls.Config{})))
+	} else {
+		opts = append(opts, grpc.WithInsecure())
+	}
+
 	// Set up the server
-	clientConn, err := grpc.Dial(fmt.Sprintf("%s:%d", config.Host, gRPCport), grpc.WithInsecure())
+	clientConn, err := grpc.Dial(fmt.Sprintf("%s:%d", config.Host, gRPCport), opts...)
 	if err != nil {
 		return err
 	}
@@ -232,6 +248,8 @@ func InnerMain(command string, args ...string) error {
 		// Iterate through each command
 		var commands []*roveapi.Command
 		for i := 0; i < len(args); i++ {
+
+			var cmd *roveapi.Command
 			switch args[i] {
 			case "turn":
 				i++
@@ -242,12 +260,10 @@ func InnerMain(command string, args ...string) error {
 				if b == roveapi.Bearing_BearingUnknown {
 					return fmt.Errorf("turn command must be given a valid bearing %s", args[i])
 				}
-				commands = append(commands,
+				cmd = &roveapi.Command{
-					&roveapi.Command{
+					Command: roveapi.CommandType_turn,
-						Command: roveapi.CommandType_turn,
+					Bearing: b,
-						Bearing: b,
+				}
-					},
-				)
 			case "broadcast":
 				i++
 				if len(args) == i {
@@ -255,20 +271,51 @@ func InnerMain(command string, args ...string) error {
 				} else if len(args[i]) > 3 {
 					return fmt.Errorf("broadcast command must be given ASCII triplet of 3 or less: %s", args[i])
 				}
-				commands = append(commands,
+				cmd = &roveapi.Command{
-					&roveapi.Command{
+					Command: roveapi.CommandType_broadcast,
-						Command: roveapi.CommandType_broadcast,
+					Data:    []byte(args[i]),
-						Data:    []byte(args[i]),
+				}
-					},
+			case "upgrade":
-				)
+				i++
+				if len(args) == i {
+					return fmt.Errorf("upgrade command must be passed a spec to upgrade")
+				}
+				var u roveapi.RoverUpgrade
+				switch args[i] {
+				case "capacity":
+					u = roveapi.RoverUpgrade_Capacity
+				case "range":
+					u = roveapi.RoverUpgrade_Range
+				case "integrity":
+					u = roveapi.RoverUpgrade_MaximumIntegrity
+				case "charge":
+					u = roveapi.RoverUpgrade_MaximumCharge
+				default:
+					return fmt.Errorf("upgrade command must be passed a known upgrade spec")
+				}
+				cmd = &roveapi.Command{
+					Command: roveapi.CommandType_upgrade,
+					Upgrade: u,
+				}
 			default:
 				// By default just use the command literally
-				commands = append(commands,
+				cmd = &roveapi.Command{
-					&roveapi.Command{
+					Command: roveapi.CommandType(roveapi.CommandType_value[args[i]]),
-						Command: roveapi.CommandType(roveapi.CommandType_value[args[i]]),
+				}
-					},
-				)
 			}
+
+			// Try and convert the next command to a number
+			number := 0
+			if len(args) > i+1 {
+				num, err := strconv.Atoi(args[i+1])
+				if err == nil {
+					number = num
+					i++
+				}
+			}
+			cmd.Repeat = int32(number)
+
+			commands = append(commands, cmd)
 		}
 
 		_, err := client.Command(ctx, &roveapi.CommandRequest{
@@ -356,6 +403,15 @@ func InnerMain(command string, args ...string) error {
 func main() {
 	// Bail without any args
 	if len(os.Args) == 1 {
+		fmt.Fprintf(os.Stderr, "\n")
+		fmt.Fprintln(os.Stderr, "m mm   mmm   m   m   mmm")
+		fmt.Fprintln(os.Stderr, "#\"  \" #\" \"#  \"m m\"  #\"  #")
+		fmt.Fprintln(os.Stderr, "#     #   #   #m#   #\"\"\"\"")
+		fmt.Fprintln(os.Stderr, "#     \"#m#\"    #    \"#mm\"")
+		fmt.Fprintf(os.Stderr, "\n")
+		fmt.Fprintln(os.Stderr, "Rove is an asychronous nomadic game about exploring a planet as part of a loose community.")
+		fmt.Fprintln(os.Stderr, "Visit https://mdiluz.github.io/rove/ for more information.")
+		fmt.Fprintf(os.Stderr, "\n")
 		printUsage()
 		os.Exit(1)
 	}

cmd/rove/main_test.go

@@ -13,6 +13,7 @@ import (
 )
 
 func Test_InnerMain(t *testing.T) {
+	os.Setenv("NO_TLS", "1")
 
 	// Use temporary local user data
 	tmp, err := ioutil.TempDir(os.TempDir(), "rove-")
@@ -53,9 +54,14 @@ func Test_InnerMain(t *testing.T) {
 	assert.NoError(t, InnerMain("command", "toggle"))
 	assert.NoError(t, InnerMain("command", "stash"))
 	assert.NoError(t, InnerMain("command", "repair"))
+	assert.NoError(t, InnerMain("command", "upgrade", "capacity"))
 	assert.NoError(t, InnerMain("command", "broadcast", "abc"))
+	assert.NoError(t, InnerMain("command", "wait", "10"))
+	assert.NoError(t, InnerMain("command", "wait", "1", "turn", "NW", "toggle", "broadcast", "zyx"))
 
 	// Give it malformed commands
 	assert.Error(t, InnerMain("command", "unknown"))
 	assert.Error(t, InnerMain("command", "broadcast"))
+	assert.Error(t, InnerMain("command", "upgrade"))
+	assert.Error(t, InnerMain("command", "1"))
 }

docker-compose-test.yml

@@ -0,0 +1,32 @@
+version: '3'
+
+services:
+  rove-test-server:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: rove:latest
+    ports:
+      - "9090:9090"
+    environment:
+      - PORT=9090
+      - DATA_PATH=/tmp/
+      - WORDS_FILE=data/words_alpha.txt
+      - TICK_RATE=10
+      - NO_TLS=1
+    command: [ "./rove-server"]
+
+  rove-tests:
+    depends_on: [ rove-test-server ]
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: rove:latest
+    environment:
+      - ROVE_GRPC=rove-test-server
+    command: [ "./script/wait-for-it.sh", "rove-test-server:9090", "--", "go", "test", "-v", "./...", "--tags=integration", "-cover", "-coverprofile=/mnt/coverage-data/c.out", "-count", "1" ]
+    volumes:
+      - /tmp/coverage-data:/mnt/coverage-data:rw
+
+
+  

docker-compose.yml

@@ -16,21 +16,10 @@ services:
       - DATA_PATH=/mnt/rove-server
       - WORDS_FILE=data/words_alpha.txt
       - TICK_RATE=3
+      - CERT_NAME=${CERT_NAME}
     volumes:
       - persistent-data:/mnt/rove-server:rw
+      - /etc/letsencrypt/:/etc/letsencrypt/
     command: [ "./rove-server"]
 
-  rove-tests:
-    depends_on: [ rove-server ]
-    build:
-      context: .
-      dockerfile: Dockerfile
-    image: rove:latest
-    environment:
-      - ROVE_GRPC=rove-server
-    command: [ "./script/wait-for-it.sh", "rove-server:9090", "--", "go", "test", "-v", "./...", "--tags=integration", "-cover", "-coverprofile=/mnt/coverage-data/c.out", "-count", "1" ]
-    volumes:
-      - /tmp/coverage-data:/mnt/coverage-data:rw
-
-
   

pkg/rove/chunkAtlas.go

@@ -2,7 +2,6 @@ package rove
 
 import (
 	"log"
-	"math/rand"
 
 	"github.com/mdiluz/rove/pkg/maths"
 	"github.com/mdiluz/rove/proto/roveapi"
@@ -111,15 +110,6 @@ func (a *chunkBasedAtlas) populate(chunk int) {
 		}
 	}
 
-	// Set up any objects
-	for i := 0; i < len(c.Tiles); i++ {
-		if rand.Intn(16) == 0 {
-			c.Objects[i] = Object{Type: roveapi.Object_RockLarge}
-		} else if rand.Intn(32) == 0 {
-			c.Objects[i] = Object{Type: roveapi.Object_RockSmall}
-		}
-	}
-
 	a.Chunks[chunk] = c
 }
 

pkg/rove/command_test.go

@@ -9,6 +9,15 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+func TestCommand_Invalid(t *testing.T) {
+	w := NewWorld(8)
+	name, err := w.SpawnRover("")
+	assert.NoError(t, err)
+
+	err = w.Enqueue(name, &roveapi.Command{Command: roveapi.CommandType_none})
+	assert.Error(t, err)
+}
+
 func TestCommand_Toggle(t *testing.T) {
 	w := NewWorld(8)
 	a, err := w.SpawnRover("")
@@ -211,11 +220,86 @@ func TestCommand_Transfer(t *testing.T) {
 
 }
 
-func TestCommand_Invalid(t *testing.T) {
+func TestCommand_Wait(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)
+
+	err = w.Enqueue(a, &roveapi.Command{Command: roveapi.CommandType_wait, Repeat: 4}, &roveapi.Command{Command: roveapi.CommandType_toggle})
+	assert.NoError(t, err)
+
+	// Tick 5 times during the wait (1 normal execute + 4)
+	for i := 0; i < 5; i++ {
+		w.Tick()
+
+		r, err = w.GetRover(a)
+		assert.NoError(t, err)
+		assert.Equal(t, roveapi.SailPosition_SolarCharging, r.SailPosition)
+	}
+
+	// One last tick to do the toggle
+	w.Tick()
+
+	r, err = w.GetRover(a)
+	assert.NoError(t, err)
+	assert.Equal(t, roveapi.SailPosition_CatchingWind, r.SailPosition)
+}
+
+func TestCommand_Upgrade(t *testing.T) {
 	w := NewWorld(8)
 	name, err := w.SpawnRover("")
 	assert.NoError(t, err)
+	rover, ok := w.Rovers[name]
+	assert.True(t, ok)
 
-	err = w.Enqueue(name, &roveapi.Command{Command: roveapi.CommandType_none})
+	// Try an invalid upgrade
+	err = w.Enqueue(name, &roveapi.Command{Command: roveapi.CommandType_upgrade})
 	assert.Error(t, err)
+
+	// Try a valid command but without the parts
+	err = w.Enqueue(name, &roveapi.Command{Command: roveapi.CommandType_upgrade, Upgrade: roveapi.RoverUpgrade_Capacity})
+	assert.NoError(t, err)
+
+	// Ensure nothing changed and we logged the attempt
+	pre := rover.Capacity
+	w.Tick()
+	assert.Equal(t, pre, rover.Capacity)
+	assert.Contains(t, rover.Logs[len(rover.Logs)-1].Text, "tried")
+
+	// One non-part item
+	rover.Inventory = []Object{
+		{
+			Type: roveapi.Object_RoverParts,
+		},
+		{
+			Type: roveapi.Object_RoverParts,
+		},
+		{
+			Type: roveapi.Object_RockSmall,
+		},
+		{
+			Type: roveapi.Object_RoverParts,
+		},
+		{
+			Type: roveapi.Object_RoverParts,
+		},
+		{
+			Type: roveapi.Object_RoverParts,
+		},
+	}
+
+	// Try a valid command again
+	err = w.Enqueue(name, &roveapi.Command{Command: roveapi.CommandType_upgrade, Upgrade: roveapi.RoverUpgrade_Capacity})
+	assert.NoError(t, err)
+
+	// Check that the capacity increases on the tick and all the parts are used
+	pre = rover.Capacity
+	w.Tick()
+	assert.Equal(t, pre+1, rover.Capacity)
+	assert.Equal(t, 1, len(rover.Inventory))
+	assert.Equal(t, roveapi.Object_RockSmall, rover.Inventory[0].Type)
 }

pkg/rove/rover.go

@@ -74,7 +74,7 @@ type Rover struct {
 // DefaultRover returns a default rover object with default settings
 func DefaultRover() *Rover {
 	return &Rover{
-		Range:            4,
+		Range:            10,
 		Integrity:        10,
 		MaximumIntegrity: 10,
 		Capacity:         10,

pkg/rove/world.go

@@ -15,6 +15,9 @@ import (
 const (
 	// ticksPerNormalMove defines the number of ticks it should take for a "normal" speed move
 	ticksPerNormalMove = 4
+
+	// upgradeCost is the cost in rover parts needed to upgrade a rover specification
+	upgradeCost = 5
 )
 
 // CommandStream is a list of commands to execute in order
@@ -446,6 +449,65 @@ func (w *World) RoverToggle(rover string) (roveapi.SailPosition, error) {
 	return r.SailPosition, nil
 }
 
+// RoverUpgrade will try to upgrade the rover
+func (w *World) RoverUpgrade(rover string, upgrade roveapi.RoverUpgrade) (int, error) {
+	w.worldMutex.Lock()
+	defer w.worldMutex.Unlock()
+
+	r, ok := w.Rovers[rover]
+	if !ok {
+		return 0, fmt.Errorf("no rover matching id")
+	}
+
+	cost := upgradeCost
+	num := 0
+	for i := range r.Inventory {
+		if r.Inventory[i].Type == roveapi.Object_RoverParts {
+			num++
+		}
+	}
+
+	if num < cost {
+		r.AddLogEntryf("tried to upgrade but lacked rover parts")
+		return 0, nil
+	}
+
+	// Apply the upgrade
+	var ret int
+	switch upgrade {
+	case roveapi.RoverUpgrade_Capacity:
+		r.Capacity++
+		ret = r.Capacity
+	case roveapi.RoverUpgrade_Range:
+		r.Range++
+		ret = r.Range
+	case roveapi.RoverUpgrade_MaximumCharge:
+		r.MaximumCharge++
+		ret = r.MaximumCharge
+	case roveapi.RoverUpgrade_MaximumIntegrity:
+		r.MaximumIntegrity++
+		ret = r.MaximumIntegrity
+	default:
+		return 0, fmt.Errorf("unknown upgrade: %s", upgrade)
+	}
+
+	// Remove the cost in rover parts
+	var n []Object
+	for _, o := range r.Inventory {
+		if o.Type == roveapi.Object_RoverParts && cost > 0 {
+			cost--
+		} else {
+			n = append(n, o)
+		}
+	}
+	// Assign back the inventory
+	r.Inventory = n
+
+	r.AddLogEntryf("upgraded %s to %d", upgrade, ret)
+
+	return ret, nil
+}
+
 // RoverTurn will turn the rover
 func (w *World) RoverTurn(rover string, bearing roveapi.Bearing) (roveapi.Bearing, error) {
 	w.worldMutex.Lock()
@@ -582,6 +644,11 @@ func (w *World) Enqueue(rover string, commands ...*roveapi.Command) error {
 			if c.GetBearing() == roveapi.Bearing_BearingUnknown {
 				return fmt.Errorf("turn command given unknown bearing")
 			}
+		case roveapi.CommandType_upgrade:
+			if c.GetUpgrade() == roveapi.RoverUpgrade_RoverUpgradeUnknown {
+				return fmt.Errorf("upgrade command given unknown upgrade")
+			}
+		case roveapi.CommandType_wait:
 		case roveapi.CommandType_toggle:
 		case roveapi.CommandType_stash:
 		case roveapi.CommandType_repair:
@@ -612,15 +679,16 @@ func (w *World) Tick() {
 		if len(cmds) != 0 {
 
 			// Execute the command
-			if err := w.ExecuteCommand(cmds[0], rover); err != nil {
+			if done, err := w.ExecuteCommand(cmds[0], rover); err != nil {
 				log.Println(err)
 				// TODO: Report this error somehow
-			}
 
-			// Extract the first command in the queue
+			} else if done {
-			// Only if the command queue still has entries
+				// Extract the first command in the queue
-			if _, ok := w.CommandQueue[rover]; ok {
+				// Only if the command queue still has entries (the command may have modified this queue)
-				w.CommandQueue[rover] = cmds[1:]
+				if _, ok := w.CommandQueue[rover]; ok {
+					w.CommandQueue[rover] = cmds[1:]
+				}
 			}
 
 		} else {
@@ -709,49 +777,35 @@ func (w *World) Tick() {
 }
 
 // ExecuteCommand will execute a single command
-func (w *World) ExecuteCommand(c *roveapi.Command, rover string) (err error) {
+func (w *World) ExecuteCommand(c *roveapi.Command, rover string) (done bool, err error) {
 	log.Printf("Executing command: %+v for %s\n", c.Command, rover)
 
 	switch c.Command {
 	case roveapi.CommandType_toggle:
-		if _, err := w.RoverToggle(rover); err != nil {
+		_, err = w.RoverToggle(rover)
-			return err
-		}
 	case roveapi.CommandType_stash:
-		if _, err := w.RoverStash(rover); err != nil {
+		_, err = w.RoverStash(rover)
-			return err
-		}
-
 	case roveapi.CommandType_repair:
-		if _, err := w.RoverRepair(rover); err != nil {
+		_, err = w.RoverRepair(rover)
-			return err
-		}
-
 	case roveapi.CommandType_broadcast:
-		if err := w.RoverBroadcast(rover, c.GetData()); err != nil {
+		err = w.RoverBroadcast(rover, c.GetData())
-			return err
-		}
-
 	case roveapi.CommandType_turn:
-		if _, err := w.RoverTurn(rover, c.GetBearing()); err != nil {
+		_, err = w.RoverTurn(rover, c.GetBearing())
-			return err
-		}
-
 	case roveapi.CommandType_salvage:
-		if _, err := w.RoverSalvage(rover); err != nil {
+		_, err = w.RoverSalvage(rover)
-			return err
-		}
-
 	case roveapi.CommandType_transfer:
-		if _, err := w.RoverTransfer(rover); err != nil {
+		_, err = w.RoverTransfer(rover)
-			return err
+	case roveapi.CommandType_upgrade:
-		}
+		_, err = w.RoverUpgrade(rover, c.GetUpgrade())
-
+	case roveapi.CommandType_wait:
+		// Nothing to do
 	default:
-		return fmt.Errorf("unknown command: %s", c.Command)
+		return true, fmt.Errorf("unknown command: %s", c.Command)
 	}
 
-	return
+	// Decrement the repeat number
+	c.Repeat--
+	return c.Repeat < 0, err
 }
 
 // Daytime returns if it's currently daytime

pkg/rove/world_test.go

@@ -109,15 +109,16 @@ func TestWorld_RadarFromRover(t *testing.T) {
 	world.Atlas.SetObject(maths.Vector{X: 0, Y: 0}, Object{Type: roveapi.Object_ObjectUnknown})
 	assert.NoError(t, world.WarpRover(a, maths.Vector{X: 0, Y: 0}), "Failed to warp rover")
 
+	r, err := world.GetRover(a)
+	assert.NoError(t, err)
+
 	radar, objs, err := world.RadarFromRover(a)
 	assert.NoError(t, err, "Failed to get radar from rover")
-	fullRange := 4 + 4 + 1
+	fullRange := r.Range + r.Range + 1
 	assert.Equal(t, fullRange*fullRange, len(radar), "Radar returned wrong length")
 	assert.Equal(t, fullRange*fullRange, len(objs), "Radar returned wrong length")
 
-	// Test the expected values
+	// TODO: Verify the other rover is on the radar
-	assert.Equal(t, roveapi.Object_RoverLive, objs[1+fullRange])
-	assert.Equal(t, roveapi.Object_RoverLive, objs[4+4*fullRange])
 
 	// Check the radar results are stable
 	radar1, objs1, err := world.RadarFromRover(a)

pkg/rove/worldgen.go

@@ -1,10 +1,6 @@
 package rove
 
 import (
-	"encoding/json"
-	"log"
-	"math/rand"
-
 	"github.com/mdiluz/rove/pkg/maths"
 	"github.com/mdiluz/rove/proto/roveapi"
 	"github.com/ojrac/opensimplex-go"
@@ -33,8 +29,9 @@ func NewNoiseWorldGen(seed int64) WorldGen {
 }
 
 const (
-	terrainNoiseScale = 6
+	terrainNoiseScale = 15
 	rockNoiseScale    = 3
+	partsNoiseScale   = 2
 )
 
 // GetTile returns the chosen tile at a location
@@ -52,49 +49,22 @@ func (g *NoiseWorldGen) GetTile(v maths.Vector) roveapi.Tile {
 
 // GetObject returns the chosen object at a location
 func (g *NoiseWorldGen) GetObject(v maths.Vector) (obj Object) {
-	o := g.noise.Eval2(float64(v.X)/rockNoiseScale, float64(v.Y)/rockNoiseScale)
+	r := g.noise.Eval2(float64(v.X)/rockNoiseScale, float64(v.Y)/rockNoiseScale)
 	switch {
-	case o > 0.6:
+	// Prioritise rocks
+	case r > 0.6:
 		obj.Type = roveapi.Object_RockLarge
-	case o > 0.5:
+	case r > 0.5:
 		obj.Type = roveapi.Object_RockSmall
-	}
 
-	// Very rarely spawn a dormant rover
+	default:
-	if obj.Type == roveapi.Object_ObjectUnknown {
+		// Otherwise, try some rover parts
-		// TODO: Make this better, ideally with noise
+		p := g.noise.Eval2(float64(v.X)/partsNoiseScale, float64(v.Y)/partsNoiseScale)
-		if v.X%25 == 0 && v.Y%25 == 0 && v.X != 0 && v.Y != 0 {
+		switch {
-			obj.Type = roveapi.Object_RoverDormant
+		case p > 0.7:
+			obj.Type = roveapi.Object_RoverParts
 		}
 	}
 
-	// Post process any spawned objects
-	switch obj.Type {
-	case roveapi.Object_RoverDormant:
-		// Create the rover
-		r := DefaultRover()
-
-		// Set the rover variables
-		r.Pos = v
-
-		// Upgrade this rover randomly
-		r.MaximumCharge += rand.Int() % 3
-		r.MaximumIntegrity += rand.Int() % 3
-		r.Capacity += rand.Int() % 3
-		r.Range += rand.Int() % 3
-
-		// For now, mark the log as corrupted
-		r.AddLogEntryf("log corrupted")
-
-		// Marshal the rover data into the object data
-		b, err := json.Marshal(r)
-		if err != nil {
-			log.Fatalf("couldn't marshal rover, should never fail: %s", err)
-		}
-
-		// Store the bytes
-		obj.Data = b
-	}
-
 	return obj
 }

proto/roveapi/roveapi.pb.go

@@ -39,43 +39,51 @@ type CommandType int32
 
 const (
 	CommandType_none CommandType = 0
+	// Waits before performing the next command
+	CommandType_wait CommandType = 1
 	// Toggles the sails, either catching the wind, or charging from the sun
-	CommandType_toggle CommandType = 1
+	CommandType_toggle CommandType = 2
 	// Turns the rover in the specified bearing (requires bearing)
-	CommandType_turn CommandType = 2
+	CommandType_turn CommandType = 3
 	// Stashes item at current location in rover inventory
-	CommandType_stash CommandType = 3
+	CommandType_stash CommandType = 4
 	// Repairs the rover using an inventory object
-	CommandType_repair CommandType = 4
+	CommandType_repair CommandType = 5
 	// Broadcasts a message to nearby rovers (requires data)
-	CommandType_broadcast CommandType = 5
+	CommandType_broadcast CommandType = 6
 	// Salvages a neighboring dormant rover for parts
-	CommandType_salvage CommandType = 6
+	CommandType_salvage CommandType = 7
 	// Transfers remote control into dormant rover
-	CommandType_transfer CommandType = 7
+	CommandType_transfer CommandType = 8
+	// Upgrades a chosen rover specification using 5 rover parts
+	CommandType_upgrade CommandType = 9
 )
 
 // Enum value maps for CommandType.
 var (
 	CommandType_name = map[int32]string{
 		0: "none",
-		1: "toggle",
+		1: "wait",
-		2: "turn",
+		2: "toggle",
-		3: "stash",
+		3: "turn",
-		4: "repair",
+		4: "stash",
-		5: "broadcast",
+		5: "repair",
-		6: "salvage",
+		6: "broadcast",
-		7: "transfer",
+		7: "salvage",
+		8: "transfer",
+		9: "upgrade",
 	}
 	CommandType_value = map[string]int32{
 		"none":      0,
-		"toggle":    1,
+		"wait":      1,
-		"turn":      2,
+		"toggle":    2,
-		"stash":     3,
+		"turn":      3,
-		"repair":    4,
+		"stash":     4,
-		"broadcast": 5,
+		"repair":    5,
-		"salvage":   6,
+		"broadcast": 6,
-		"transfer":  7,
+		"salvage":   7,
+		"transfer":  8,
+		"upgrade":   9,
 	}
 )
 
@@ -175,6 +183,62 @@ func (Bearing) EnumDescriptor() ([]byte, []int) {
 	return file_roveapi_roveapi_proto_rawDescGZIP(), []int{1}
 }
 
+// Describes the type of upgrade
+type RoverUpgrade int32
+
+const (
+	RoverUpgrade_RoverUpgradeUnknown RoverUpgrade = 0
+	RoverUpgrade_Range               RoverUpgrade = 1
+	RoverUpgrade_Capacity            RoverUpgrade = 2
+	RoverUpgrade_MaximumIntegrity    RoverUpgrade = 3
+	RoverUpgrade_MaximumCharge       RoverUpgrade = 4
+)
+
+// Enum value maps for RoverUpgrade.
+var (
+	RoverUpgrade_name = map[int32]string{
+		0: "RoverUpgradeUnknown",
+		1: "Range",
+		2: "Capacity",
+		3: "MaximumIntegrity",
+		4: "MaximumCharge",
+	}
+	RoverUpgrade_value = map[string]int32{
+		"RoverUpgradeUnknown": 0,
+		"Range":               1,
+		"Capacity":            2,
+		"MaximumIntegrity":    3,
+		"MaximumCharge":       4,
+	}
+)
+
+func (x RoverUpgrade) Enum() *RoverUpgrade {
+	p := new(RoverUpgrade)
+	*p = x
+	return p
+}
+
+func (x RoverUpgrade) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (RoverUpgrade) Descriptor() protoreflect.EnumDescriptor {
+	return file_roveapi_roveapi_proto_enumTypes[2].Descriptor()
+}
+
+func (RoverUpgrade) Type() protoreflect.EnumType {
+	return &file_roveapi_roveapi_proto_enumTypes[2]
+}
+
+func (x RoverUpgrade) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use RoverUpgrade.Descriptor instead.
+func (RoverUpgrade) EnumDescriptor() ([]byte, []int) {
+	return file_roveapi_roveapi_proto_rawDescGZIP(), []int{2}
+}
+
 // Types of objects
 type Object int32
 
@@ -189,7 +253,8 @@ const (
 	Object_RockSmall Object = 3
 	// RockLarge is a large blocking rock
 	Object_RockLarge Object = 4
-	// RoverParts is one unit of rover parts, used for repairing and fixing the rover
+	// RoverParts is one unit of rover parts, used for repairing and fixing the
+	// rover
 	Object_RoverParts Object = 5
 )
 
@@ -224,11 +289,11 @@ func (x Object) String() string {
 }
 
 func (Object) Descriptor() protoreflect.EnumDescriptor {
-	return file_roveapi_roveapi_proto_enumTypes[2].Descriptor()
+	return file_roveapi_roveapi_proto_enumTypes[3].Descriptor()
 }
 
 func (Object) Type() protoreflect.EnumType {
-	return &file_roveapi_roveapi_proto_enumTypes[2]
+	return &file_roveapi_roveapi_proto_enumTypes[3]
 }
 
 func (x Object) Number() protoreflect.EnumNumber {
@@ -237,7 +302,7 @@ func (x Object) Number() protoreflect.EnumNumber {
 
 // Deprecated: Use Object.Descriptor instead.
 func (Object) EnumDescriptor() ([]byte, []int) {
-	return file_roveapi_roveapi_proto_rawDescGZIP(), []int{2}
+	return file_roveapi_roveapi_proto_rawDescGZIP(), []int{3}
 }
 
 type Tile int32
@@ -280,11 +345,11 @@ func (x Tile) String() string {
 }
 
 func (Tile) Descriptor() protoreflect.EnumDescriptor {
-	return file_roveapi_roveapi_proto_enumTypes[3].Descriptor()
+	return file_roveapi_roveapi_proto_enumTypes[4].Descriptor()
 }
 
 func (Tile) Type() protoreflect.EnumType {
-	return &file_roveapi_roveapi_proto_enumTypes[3]
+	return &file_roveapi_roveapi_proto_enumTypes[4]
 }
 
 func (x Tile) Number() protoreflect.EnumNumber {
@@ -293,7 +358,7 @@ func (x Tile) Number() protoreflect.EnumNumber {
 
 // Deprecated: Use Tile.Descriptor instead.
 func (Tile) EnumDescriptor() ([]byte, []int) {
-	return file_roveapi_roveapi_proto_rawDescGZIP(), []int{3}
+	return file_roveapi_roveapi_proto_rawDescGZIP(), []int{4}
 }
 
 // SailPosition represents the position of the sola sail
@@ -332,11 +397,11 @@ func (x SailPosition) String() string {
 }
 
 func (SailPosition) Descriptor() protoreflect.EnumDescriptor {
-	return file_roveapi_roveapi_proto_enumTypes[4].Descriptor()
+	return file_roveapi_roveapi_proto_enumTypes[5].Descriptor()
 }
 
 func (SailPosition) Type() protoreflect.EnumType {
-	return &file_roveapi_roveapi_proto_enumTypes[4]
+	return &file_roveapi_roveapi_proto_enumTypes[5]
 }
 
 func (x SailPosition) Number() protoreflect.EnumNumber {
@@ -345,7 +410,7 @@ func (x SailPosition) Number() protoreflect.EnumNumber {
 
 // Deprecated: Use SailPosition.Descriptor instead.
 func (SailPosition) EnumDescriptor() ([]byte, []int) {
-	return file_roveapi_roveapi_proto_rawDescGZIP(), []int{4}
+	return file_roveapi_roveapi_proto_rawDescGZIP(), []int{5}
 }
 
 // ServerStatusRequest is an empty placeholder
@@ -636,10 +701,15 @@ type Command struct {
 
 	// The command type
 	Command CommandType `protobuf:"varint,1,opt,name=command,proto3,enum=roveapi.CommandType" json:"command,omitempty"`
-	// broadcast - a simple message, must be composed of up to 3 printable ASCII glyphs (32-126)
+	// The number of times to repeat the command after the first
-	Data []byte `protobuf:"bytes,2,opt,name=data,proto3" json:"data,omitempty"`
+	Repeat int32 `protobuf:"varint,2,opt,name=repeat,proto3" json:"repeat,omitempty"`
+	// broadcast - a simple message, must be composed of up to 3 printable ASCII
+	// glyphs (32-126)
+	Data []byte `protobuf:"bytes,3,opt,name=data,proto3" json:"data,omitempty"`
 	// move - the bearing for the rover to turn to
-	Bearing Bearing `protobuf:"varint,3,opt,name=bearing,proto3,enum=roveapi.Bearing" json:"bearing,omitempty"`
+	Bearing Bearing `protobuf:"varint,4,opt,name=bearing,proto3,enum=roveapi.Bearing" json:"bearing,omitempty"`
+	// upgrade - the upgrade to apply to the rover
+	Upgrade RoverUpgrade `protobuf:"varint,5,opt,name=upgrade,proto3,enum=roveapi.RoverUpgrade" json:"upgrade,omitempty"`
 }
 
 func (x *Command) Reset() {
@@ -681,6 +751,13 @@ func (x *Command) GetCommand() CommandType {
 	return CommandType_none
 }
 
+func (x *Command) GetRepeat() int32 {
+	if x != nil {
+		return x.Repeat
+	}
+	return 0
+}
+
 func (x *Command) GetData() []byte {
 	if x != nil {
 		return x.Data
@@ -695,6 +772,13 @@ func (x *Command) GetBearing() Bearing {
 	return Bearing_BearingUnknown
 }
 
+func (x *Command) GetUpgrade() RoverUpgrade {
+	if x != nil {
+		return x.Upgrade
+	}
+	return RoverUpgrade_RoverUpgradeUnknown
+}
+
 // CommandRequest describes a set of commands to be requested for the rover
 type CommandRequest struct {
 	state         protoimpl.MessageState
@@ -1408,144 +1492,157 @@ 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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+	0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1560,66 +1657,68 @@ func file_roveapi_roveapi_proto_rawDescGZIP() []byte {
 	return file_roveapi_roveapi_proto_rawDescData
 }
 
-var file_roveapi_roveapi_proto_enumTypes = make([]protoimpl.EnumInfo, 5)
+var file_roveapi_roveapi_proto_enumTypes = make([]protoimpl.EnumInfo, 6)
 var file_roveapi_roveapi_proto_msgTypes = make([]protoimpl.MessageInfo, 17)
 var file_roveapi_roveapi_proto_goTypes = []interface{}{
 	(CommandType)(0),             // 0: roveapi.CommandType
 	(Bearing)(0),                 // 1: roveapi.Bearing
-	(Object)(0),                  // 2: roveapi.Object
+	(RoverUpgrade)(0),            // 2: roveapi.RoverUpgrade
-	(Tile)(0),                    // 3: roveapi.Tile
+	(Object)(0),                  // 3: roveapi.Object
-	(SailPosition)(0),            // 4: roveapi.SailPosition
+	(Tile)(0),                    // 4: roveapi.Tile
-	(*ServerStatusRequest)(nil),  // 5: roveapi.ServerStatusRequest
+	(SailPosition)(0),            // 5: roveapi.SailPosition
-	(*ServerStatusResponse)(nil), // 6: roveapi.ServerStatusResponse
+	(*ServerStatusRequest)(nil),  // 6: roveapi.ServerStatusRequest
-	(*RegisterRequest)(nil),      // 7: roveapi.RegisterRequest
+	(*ServerStatusResponse)(nil), // 7: roveapi.ServerStatusResponse
-	(*Account)(nil),              // 8: roveapi.Account
+	(*RegisterRequest)(nil),      // 8: roveapi.RegisterRequest
-	(*RegisterResponse)(nil),     // 9: roveapi.RegisterResponse
+	(*Account)(nil),              // 9: roveapi.Account
-	(*Command)(nil),              // 10: roveapi.Command
+	(*RegisterResponse)(nil),     // 10: roveapi.RegisterResponse
-	(*CommandRequest)(nil),       // 11: roveapi.CommandRequest
+	(*Command)(nil),              // 11: roveapi.Command
-	(*CommandResponse)(nil),      // 12: roveapi.CommandResponse
+	(*CommandRequest)(nil),       // 12: roveapi.CommandRequest
-	(*RadarRequest)(nil),         // 13: roveapi.RadarRequest
+	(*CommandResponse)(nil),      // 13: roveapi.CommandResponse
-	(*RadarResponse)(nil),        // 14: roveapi.RadarResponse
+	(*RadarRequest)(nil),         // 14: roveapi.RadarRequest
-	(*StatusRequest)(nil),        // 15: roveapi.StatusRequest
+	(*RadarResponse)(nil),        // 15: roveapi.RadarResponse
-	(*Log)(nil),                  // 16: roveapi.Log
+	(*StatusRequest)(nil),        // 16: roveapi.StatusRequest
-	(*Vector)(nil),               // 17: roveapi.Vector
+	(*Log)(nil),                  // 17: roveapi.Log
-	(*RoverSpecifications)(nil),  // 18: roveapi.RoverSpecifications
+	(*Vector)(nil),               // 18: roveapi.Vector
-	(*RoverStatus)(nil),          // 19: roveapi.RoverStatus
+	(*RoverSpecifications)(nil),  // 19: roveapi.RoverSpecifications
-	(*RoverReadings)(nil),        // 20: roveapi.RoverReadings
+	(*RoverStatus)(nil),          // 20: roveapi.RoverStatus
-	(*StatusResponse)(nil),       // 21: roveapi.StatusResponse
+	(*RoverReadings)(nil),        // 21: roveapi.RoverReadings
+	(*StatusResponse)(nil),       // 22: roveapi.StatusResponse
 }
 var file_roveapi_roveapi_proto_depIdxs = []int32{
-	8,  // 0: roveapi.RegisterResponse.account:type_name -> roveapi.Account
+	9,  // 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
-	8,  // 3: roveapi.CommandRequest.account:type_name -> roveapi.Account
+	2,  // 3: roveapi.Command.upgrade:type_name -> roveapi.RoverUpgrade
-	10, // 4: roveapi.CommandRequest.commands:type_name -> roveapi.Command
+	9,  // 4: roveapi.CommandRequest.account:type_name -> roveapi.Account
-	8,  // 5: roveapi.RadarRequest.account:type_name -> roveapi.Account
+	11, // 5: roveapi.CommandRequest.commands:type_name -> roveapi.Command
-	3,  // 6: roveapi.RadarResponse.tiles:type_name -> roveapi.Tile
+	9,  // 6: roveapi.RadarRequest.account:type_name -> roveapi.Account
-	2,  // 7: roveapi.RadarResponse.objects:type_name -> roveapi.Object
+	4,  // 7: roveapi.RadarResponse.tiles:type_name -> roveapi.Tile
-	8,  // 8: roveapi.StatusRequest.account:type_name -> roveapi.Account
+	3,  // 8: roveapi.RadarResponse.objects:type_name -> roveapi.Object
-	1,  // 9: roveapi.RoverStatus.bearing:type_name -> roveapi.Bearing
+	9,  // 9: roveapi.StatusRequest.account:type_name -> roveapi.Account
-	4,  // 10: roveapi.RoverStatus.sailPosition:type_name -> roveapi.SailPosition
+	1,  // 10: roveapi.RoverStatus.bearing:type_name -> roveapi.Bearing
-	10, // 11: roveapi.RoverStatus.queuedCommands:type_name -> roveapi.Command
+	5,  // 11: roveapi.RoverStatus.sailPosition:type_name -> roveapi.SailPosition
-	17, // 12: roveapi.RoverReadings.position:type_name -> roveapi.Vector
+	11, // 12: roveapi.RoverStatus.queuedCommands:type_name -> roveapi.Command
-	1,  // 13: roveapi.RoverReadings.wind:type_name -> roveapi.Bearing
+	18, // 13: roveapi.RoverReadings.position:type_name -> roveapi.Vector
-	16, // 14: roveapi.RoverReadings.logs:type_name -> roveapi.Log
+	1,  // 14: roveapi.RoverReadings.wind:type_name -> roveapi.Bearing
-	18, // 15: roveapi.StatusResponse.spec:type_name -> roveapi.RoverSpecifications
+	17, // 15: roveapi.RoverReadings.logs:type_name -> roveapi.Log
-	19, // 16: roveapi.StatusResponse.status:type_name -> roveapi.RoverStatus
+	19, // 16: roveapi.StatusResponse.spec:type_name -> roveapi.RoverSpecifications
-	20, // 17: roveapi.StatusResponse.readings:type_name -> roveapi.RoverReadings
+	20, // 17: roveapi.StatusResponse.status:type_name -> roveapi.RoverStatus
-	5,  // 18: roveapi.Rove.ServerStatus:input_type -> roveapi.ServerStatusRequest
+	21, // 18: roveapi.StatusResponse.readings:type_name -> roveapi.RoverReadings
-	7,  // 19: roveapi.Rove.Register:input_type -> roveapi.RegisterRequest
+	6,  // 19: roveapi.Rove.ServerStatus:input_type -> roveapi.ServerStatusRequest
-	11, // 20: roveapi.Rove.Command:input_type -> roveapi.CommandRequest
+	8,  // 20: roveapi.Rove.Register:input_type -> roveapi.RegisterRequest
-	13, // 21: roveapi.Rove.Radar:input_type -> roveapi.RadarRequest
+	12, // 21: roveapi.Rove.Command:input_type -> roveapi.CommandRequest
-	15, // 22: roveapi.Rove.Status:input_type -> roveapi.StatusRequest
+	14, // 22: roveapi.Rove.Radar:input_type -> roveapi.RadarRequest
-	6,  // 23: roveapi.Rove.ServerStatus:output_type -> roveapi.ServerStatusResponse
+	16, // 23: roveapi.Rove.Status:input_type -> roveapi.StatusRequest
-	9,  // 24: roveapi.Rove.Register:output_type -> roveapi.RegisterResponse
+	7,  // 24: roveapi.Rove.ServerStatus:output_type -> roveapi.ServerStatusResponse
-	12, // 25: roveapi.Rove.Command:output_type -> roveapi.CommandResponse
+	10, // 25: roveapi.Rove.Register:output_type -> roveapi.RegisterResponse
-	14, // 26: roveapi.Rove.Radar:output_type -> roveapi.RadarResponse
+	13, // 26: roveapi.Rove.Command:output_type -> roveapi.CommandResponse
-	21, // 27: roveapi.Rove.Status:output_type -> roveapi.StatusResponse
+	15, // 27: roveapi.Rove.Radar:output_type -> roveapi.RadarResponse
-	23, // [23:28] is the sub-list for method output_type
+	22, // 28: roveapi.Rove.Status:output_type -> roveapi.StatusResponse
-	18, // [18:23] is the sub-list for method input_type
+	24, // [24:29] is the sub-list for method output_type
-	18, // [18:18] is the sub-list for extension type_name
+	19, // [19:24] is the sub-list for method input_type
-	18, // [18:18] is the sub-list for extension extendee
+	19, // [19:19] is the sub-list for extension type_name
-	0,  // [0:18] is the sub-list for field type_name
+	19, // [19:19] is the sub-list for extension extendee
+	0,  // [0:19] is the sub-list for field type_name
 }
 
 func init() { file_roveapi_roveapi_proto_init() }
@@ -1838,7 +1937,7 @@ func file_roveapi_roveapi_proto_init() {
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_roveapi_roveapi_proto_rawDesc,
-			NumEnums:      5,
+			NumEnums:      6,
 			NumMessages:   17,
 			NumExtensions: 0,
 			NumServices:   1,

proto/roveapi/roveapi.proto

@@ -89,20 +89,24 @@ message RegisterResponse {
 // CommandType defines the type of a command to give to the rover
 enum CommandType {
   none = 0;
+  // Waits before performing the next command
+  wait = 1;
   // Toggles the sails, either catching the wind, or charging from the sun
-  toggle = 1;
+  toggle = 2;
   // Turns the rover in the specified bearing (requires bearing)
-  turn = 2;
+  turn = 3;
   // Stashes item at current location in rover inventory
-  stash = 3;
+  stash = 4;
   // Repairs the rover using an inventory object
-  repair = 4;
+  repair = 5;
   // Broadcasts a message to nearby rovers (requires data)
-  broadcast = 5;
+  broadcast = 6;
   // Salvages a neighboring dormant rover for parts
-  salvage = 6;
+  salvage = 7;
   // Transfers remote control into dormant rover
-  transfer = 7;
+  transfer = 8;
+  // Upgrades a chosen rover specification using 5 rover parts
+  upgrade = 9;
 }
 
 // Bearing represents a compass direction
@@ -119,16 +123,32 @@ enum Bearing {
   NorthWest = 8;
 }
 
+// Describes the type of upgrade
+enum RoverUpgrade {
+  RoverUpgradeUnknown = 0;
+  Range = 1;
+  Capacity = 2;
+  MaximumIntegrity = 3;
+  MaximumCharge = 4;
+}
+
 // Command is a single command for a rover
 message Command {
   // The command type
   CommandType command = 1;
 
-  // broadcast - a simple message, must be composed of up to 3 printable ASCII glyphs (32-126)
+  // The number of times to repeat the command after the first
-  bytes data = 2;
+  int32 repeat = 2;
+
+  // broadcast - a simple message, must be composed of up to 3 printable ASCII
+  // glyphs (32-126)
+  bytes data = 3;
 
   // move - the bearing for the rover to turn to
-  Bearing bearing = 3;
+  Bearing bearing = 4;
+
+  // upgrade - the upgrade to apply to the rover
+  RoverUpgrade upgrade = 5;
 }
 
 // CommandRequest describes a set of commands to be requested for the rover
@@ -164,7 +184,8 @@ enum Object {
   // RockLarge is a large blocking rock
   RockLarge = 4;
 
-  // RoverParts is one unit of rover parts, used for repairing and fixing the rover
+  // RoverParts is one unit of rover parts, used for repairing and fixing the
+  // rover
   RoverParts = 5;
 }