allow object specification

control.go

@@ -23,6 +23,7 @@ func startGame(w http.ResponseWriter, req *http.Request) {
 
 	requested_game_name := idg.Hash()
 	width, height := float32(conf.Width), float32(conf.Height)
+	obstacles := 0
 	tick := conf.Tick
 
 	// here we determine if we are going to run with defaults or pick them off
@@ -34,10 +35,11 @@ func startGame(w http.ResponseWriter, req *http.Request) {
 		}
 		req.Body.Close()
 		cfg := struct {
-			Width  float32 `json:"width"`
-			Height float32 `json:"height"`
-			Name   string  `json:"name"`
-			Tick   int     `json:"tick"`
+			Width     float32 `json:"width"`
+			Height    float32 `json:"height"`
+			Name      string  `json:"name"`
+			Obstacles int     `json:"obstacles"`
+			Tick      int     `json:"tick"`
 		}{}
 		err = json.Unmarshal(body, &cfg)
 		if err != nil {
@@ -49,6 +51,7 @@ func startGame(w http.ResponseWriter, req *http.Request) {
 		requested_game_name = cfg.Name
 		width = cfg.Width
 		height = cfg.Height
+		obstacles = cfg.Obstacles
 		tick = cfg.Tick
 	}
 
@@ -56,7 +59,7 @@ func startGame(w http.ResponseWriter, req *http.Request) {
 	g := games.get(requested_game_name)
 	if g == nil {
 		log.Printf("Game '%s' non-existant; making it now", requested_game_name)
-		g = NewGame(requested_game_name, width, height, tick)
+		g = NewGame(requested_game_name, width, height, obstacles, tick)
 		go g.run()
 		games.add(g)
 	} else {

game.go

@@ -66,14 +66,14 @@ type game struct {
 	winners           WinnerMap
 }
 
-func NewGame(id string, width, height float32, tick int) *game {
+func NewGame(id string, width, height float32, obstacles, tick int) *game {
 	g := &game{
 		id:                id,
 		register:          make(chan *player),
 		unregister:        make(chan *player, maxPlayer),
 		projectiles:       make(map[*Projectile]bool),
 		splosions:         make(map[*Splosion]bool),
-		obstacles:         GenerateObstacles(conf.Obstacles, width, height),
+		obstacles:         GenerateObstacles(obstacles, width, height),
 		players:           make(map[*player]bool),
 		turn:              0,
 		width:             width,

protocol.go

@@ -165,6 +165,7 @@ func addPlayer(ws *websocket.Conn) {
 			gid.Id,
 			float32(conf.Width),
 			float32(conf.Height),
+			conf.Obstacles,
 			conf.Tick,
 		)
 		go game.run()