point limit parametrized

control.go

@@ -25,6 +25,7 @@ func startGame(w http.ResponseWriter, req *http.Request) {
 	width, height := float32(conf.Width), float32(conf.Height)
 	obstacles := 0
 	tick := conf.Tick
+	maxPoints := conf.MaxPoints
 
 	// here we determine if we are going to run with defaults or pick them off
 	// a posted json blob
@@ -35,11 +36,8 @@ 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"`
-			Obstacles int     `json:"obstacles"`
-			Tick      int     `json:"tick"`
+			Name string `json:"name"`
+			Config
 		}{}
 		err = json.Unmarshal(body, &cfg)
 		if err != nil {
@@ -49,21 +47,24 @@ func startGame(w http.ResponseWriter, req *http.Request) {
 			return
 		}
 		requested_game_name = cfg.Name
-		width = cfg.Width
-		height = cfg.Height
+		width = float32(cfg.Width)
+		height = float32(cfg.Height)
 		obstacles = cfg.Obstacles
 		tick = cfg.Tick
+		maxPoints = cfg.MaxPoints
 	}
 
-	log.Printf("game info: %v %v %v %v", requested_game_name, width, height, tick)
 	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, obstacles, tick)
+		g = NewGame(requested_game_name, width, height, obstacles, tick, maxPoints)
 		go g.run()
 		games.add(g)
 	} else {
-		log.Printf("Game '%s' found: %p", requested_game_name, g)
+		log.Printf("Game '%s' already exists: %p", requested_game_name, g)
+		b, _ := json.Marshal(NewFailure("game already exists"))
+		http.Error(w, string(b), http.StatusConflict)
+		return
 	}
 
 	game_json := struct {