Add rover inventory capacity and test

cmd/rove-server/internal/routes.go

@@ -72,6 +72,7 @@ func (s *Server) Rover(ctx context.Context, req *rove.RoverRequest) (*rove.Rover
 			},
 			Range:     int32(rover.Range),
 			Inventory: inv,
+			Capacity:  int32(rover.Capacity),
 			Integrity: int32(rover.Integrity),
 		}
 	}

pkg/game/rover.go

@@ -19,6 +19,9 @@ type Rover struct {
 	// Inventory represents any items the rover is carrying
 	Inventory []objects.Object `json:"inventory"`
 
+	// Capacity is the maximum number of inventory items
+	Capacity int `json:"capacity"`
+
 	// Integrity represents current rover health
 	Integrity int `json:"integrity"`
 }

pkg/game/world.go

@@ -77,6 +77,7 @@ func (w *World) SpawnRover() (string, error) {
 	rover := Rover{
 		Range:     4.0,
 		Integrity: 10,
+		Capacity:  10,
 		Name:      uuid.New().String(),
 	}
 
@@ -249,6 +250,11 @@ func (w *World) RoverStash(rover string) (objects.Type, error) {
 		return objects.None, fmt.Errorf("no rover matching id")
 	}
 
+	// Can't pick up when full
+	if len(r.Inventory) >= r.Capacity {
+		return objects.None, nil
+	}
+
 	_, obj := w.Atlas.QueryPosition(r.Pos)
 	if !obj.IsStashable() {
 		return objects.None, nil

pkg/game/world_test.go

@@ -129,18 +129,46 @@ func TestWorld_RoverStash(t *testing.T) {
 
 	// Set to a traversible tile
 	world.Atlas.SetTile(pos, atlas.TileRock)
+
+	rover, err := world.GetRover(a)
+	assert.NoError(t, err, "Failed to get rover")
+
+	for i := 0; i < rover.Capacity; i++ {
+		// Place an object
+		world.Atlas.SetObject(pos, objects.Object{Type: objects.SmallRock})
+
+		// Pick it up
+		o, err := world.RoverStash(a)
+		assert.NoError(t, err, "Failed to stash")
+		assert.Equal(t, objects.SmallRock, o, "Failed to get correct object")
+
+		// Check it's gone
+		_, obj := world.Atlas.QueryPosition(pos)
+		assert.Equal(t, objects.None, obj.Type, "Stash failed to remove object from atlas")
+
+		// Check we have it
+		inv, err := world.RoverInventory(a)
+		assert.NoError(t, err, "Failed to get inventory")
+		assert.Equal(t, i+1, len(inv))
+		assert.Equal(t, objects.Object{Type: objects.SmallRock}, inv[i])
+	}
+
+	// Place an object
 	world.Atlas.SetObject(pos, objects.Object{Type: objects.SmallRock})
 
+	// Try to pick it up
 	o, err := world.RoverStash(a)
 	assert.NoError(t, err, "Failed to stash")
-	assert.Equal(t, objects.SmallRock, o, "Failed to get correct object")
+	assert.Equal(t, objects.None, o, "Failed to get correct object")
 
+	// Check it's still there
 	_, obj := world.Atlas.QueryPosition(pos)
-	assert.Equal(t, objects.None, obj.Type, "Stash failed to remove object from atlas")
+	assert.Equal(t, objects.SmallRock, obj.Type, "Stash failed to remove object from atlas")
 
+	// Check we don't have it
 	inv, err := world.RoverInventory(a)
 	assert.NoError(t, err, "Failed to get inventory")
-	assert.Equal(t, objects.Object{Type: objects.SmallRock}, inv[0])
+	assert.Equal(t, rover.Capacity, len(inv))
 }
 
 func TestWorld_RoverDamage(t *testing.T) {

pkg/rove/rove.pb.go

@@ -500,8 +500,10 @@ type RoverResponse struct {
 	Range int32 `protobuf:"varint,3,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"`
+	// The capacity of the inventory
+	Capacity int32 `protobuf:"varint,5,opt,name=capacity,proto3" json:"capacity,omitempty"`
 	// The current health of the rover
-	Integrity int32 `protobuf:"varint,5,opt,name=Integrity,proto3" json:"Integrity,omitempty"`
+	Integrity int32 `protobuf:"varint,6,opt,name=integrity,proto3" json:"integrity,omitempty"`
 }
 
 func (x *RoverResponse) Reset() {
@@ -564,6 +566,13 @@ func (x *RoverResponse) GetInventory() []byte {
 	return nil
 }
 
+func (x *RoverResponse) GetCapacity() int32 {
+	if x != nil {
+		return x.Capacity
+	}
+	return 0
+}
+
 func (x *RoverResponse) GetIntegrity() int32 {
 	if x != nil {
 		return x.Integrity
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+	0x76, 0x65, 0x2f, 0x70, 0x6b, 0x67, 0x2f, 0x72, 0x6f, 0x76, 0x65, 0x62, 0x06, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x33,
 }
 
 var (

pkg/rove/rove.swagger.json

@@ -312,7 +312,12 @@
           "format": "byte",
           "title": "The items in the rover inventory"
         },
-        "Integrity": {
+        "capacity": {
+          "type": "integer",
+          "format": "int32",
+          "title": "The capacity of the inventory"
+        },
+        "integrity": {
           "type": "integer",
           "format": "int32",
           "title": "The current health of the rover"

proto/rove/rove.proto

@@ -129,8 +129,11 @@ message RoverResponse {
     // The items in the rover inventory
     bytes inventory = 4;
 
+    // The capacity of the inventory
+    int32 capacity = 5;
+
     // The current health of the rover
-    int32 Integrity = 5;
+    int32 integrity = 6;
 }
 
 // Empty placeholder