Rename /view to /radar and fill in more of the response

pkg/game/world.go

@@ -18,8 +18,8 @@ type RoverAttributes struct {
 	// Speed represents the Speed that the rover will move per second
 	Speed float64 `json:"speed"`
 
-	// Sight represents the distance the unit can see
-	Sight float64 `json:"sight"`
+	// Range represents the distance the unit's radar can see
+	Range float64 `json:"range"`
 }
 
 // Rover describes a single rover in the world
@@ -53,7 +53,7 @@ func (w *World) SpawnRover() uuid.UUID {
 		// TODO: Stop these being random numbers
 		Attributes: RoverAttributes{
 			Speed: 1.0,
-			Sight: 20.0,
+			Range: 20.0,
 		},
 	}
 
@@ -125,6 +125,24 @@ func (w *World) MoveRover(id uuid.UUID, bearing float64, duration float64) (Vect
 	}
 }
 
+// RadarDescription describes what a rover can see
+type RadarDescription struct {
+	// Rovers is the set of rovers that this radar can see
+	Rovers []Vector `json:"rovers"`
+}
+
+// RadarFromRover can be used to query what a rover can currently see
+func (w World) RadarFromRover(id uuid.UUID) (RadarDescription, error) {
+	if _, ok := w.Rovers[id]; ok {
+
+		// TODO: Gather nearby rovers within the range
+
+		return RadarDescription{}, nil
+	} else {
+		return RadarDescription{}, fmt.Errorf("no rover matching id")
+	}
+}
+
 // Execute will run the commands given
 func (w *World) Execute(commands ...Command) error {
 	for _, c := range commands {

pkg/game/world_test.go

@@ -33,7 +33,7 @@ func TestWorld_RoverAttributes(t *testing.T) {
 
 	attribs, err := world.RoverAttributes(a)
 	assert.NoError(t, err, "Failed to get rover attribs")
-	assert.NotZero(t, attribs.Sight, "Rover should not be spawned blind")
+	assert.NotZero(t, attribs.Range, "Rover should not be spawned blind")
 	assert.NotZero(t, attribs.Speed, "Rover should not be spawned unable to move")
 }
 

pkg/server/api.go

@@ -1,5 +1,7 @@
 package server
 
+import "github.com/mdiluz/rove/pkg/game"
+
 // ==============================
 // API: /status method: GET
 // Queries the status of the server
@@ -44,8 +46,7 @@ type SpawnResponse struct {
 	Error   string `json:"error"`
 
 	// The location of the spawned entity
-	X float64 `json:"x"`
-	Y float64 `json:"y"`
+	Position game.Vector `json:"position"`
 }
 
 // ==============================
@@ -81,16 +82,19 @@ type Command struct {
 }
 
 // ================
-// API: /view POST
-// Queries the current view for the user
+// API: /radar POST
+// Queries the current radar for the user
 
-// ViewData describes the input data to request an accounts current view
-type ViewData struct {
+// RadarData describes the input data to request an accounts current radar
+type RadarData struct {
 	Id string `json:"id"`
 }
 
-// ViewResponse describes the response to a /view call
-type ViewResponse struct {
+// RadarResponse describes the response to a /radar call
+type RadarResponse struct {
 	Success bool   `json:"success"`
 	Error   string `json:"error"`
+
+	// The set of positions for nearby rovers
+	Rovers []game.Vector `json:"rovers"`
 }

pkg/server/routes.go

@@ -44,9 +44,9 @@ var Routes = []Route{
 		handler: HandleCommands,
 	},
 	{
-		path:    "/view",
+		path:    "/radar",
 		method:  http.MethodPost,
-		handler: HandleView,
+		handler: HandleRadar,
 	},
 }
 
@@ -135,8 +135,7 @@ func HandleSpawn(s *Server, b io.ReadCloser, w io.Writer) error {
 			response.Error = err.Error()
 		} else {
 			response.Success = true
-			response.X = pos.X
-			response.Y = pos.Y
+			response.Position = pos
 		}
 	}
 
@@ -201,10 +200,10 @@ func HandleCommands(s *Server, b io.ReadCloser, w io.Writer) error {
 	return nil
 }
 
-// HandleView handles the view request
-func HandleView(s *Server, b io.ReadCloser, w io.Writer) error {
+// HandleRadar handles the radar request
+func HandleRadar(s *Server, b io.ReadCloser, w io.Writer) error {
 	// Set up the response
-	var response = ViewResponse{
+	var response = RadarResponse{
 		Success: false,
 	}
 
@@ -220,12 +219,16 @@ func HandleView(s *Server, b io.ReadCloser, w io.Writer) error {
 	} else if id, err := uuid.Parse(data.Id); err != nil {
 		response.Error = fmt.Sprintf("Provided account ID was invalid: %s", err)
 
-	} else {
-		// log the data sent
-		fmt.Printf("\tcommands data: %v\n", data)
+	} else if inst, err := s.accountant.GetRover(id); err != nil {
+		response.Error = fmt.Sprintf("Provided account has no rover: %s", err)
 
-		// TODO: Query the view for this account
-		fmt.Println(id)
+	} else if radar, err := s.world.RadarFromRover(inst); err != nil {
+		response.Error = fmt.Sprintf("Error getting radar from rover: %s", err)
+
+	} else {
+		// Fill in the response
+		response.Rovers = radar.Rovers
+		response.Success = true
 	}
 
 	// Log the response

pkg/server/routes_test.go

@@ -119,7 +119,7 @@ func TestHandleCommands(t *testing.T) {
 	assert.Equal(t, pos, pos2, "Rover should have moved by bearing")
 }
 
-func TestHandleView(t *testing.T) {
+func TestHandleRadar(t *testing.T) {
 	s := NewServer()
 	a, err := s.accountant.RegisterAccount("test")
 	assert.NoError(t, err, "Error registering account")
@@ -127,24 +127,24 @@ func TestHandleView(t *testing.T) {
 	// Spawn the rover rover for the account
 	_, _, err = s.SpawnRoverForAccount(a.Id)
 
-	data := ViewData{
+	data := RadarData{
 		Id: a.Id.String(),
 	}
 
 	b, err := json.Marshal(data)
 	assert.NoError(t, err, "Error marshalling data")
 
-	request, _ := http.NewRequest(http.MethodPost, "/view", bytes.NewReader(b))
+	request, _ := http.NewRequest(http.MethodPost, "/radar", bytes.NewReader(b))
 	response := httptest.NewRecorder()
 
-	s.wrapHandler(http.MethodPost, HandleView)(response, request)
+	s.wrapHandler(http.MethodPost, HandleRadar)(response, request)
 
-	var status ViewResponse
+	var status RadarResponse
 	json.NewDecoder(response.Body).Decode(&status)
 
 	if status.Success != true {
-		t.Errorf("got false for /view")
+		t.Errorf("got false for /radar")
 	}
 
-	// TODO: Verify the view information
+	// TODO: Verify the radar information
 }