Added ability to configure game at creation time

control.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"encoding/json"
+	"io/ioutil"
 	"log"
 	"net/http"
 	"runtime/pprof"
@@ -17,10 +18,44 @@ func (h JsonHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 
 func startGame(w http.ResponseWriter, req *http.Request) {
 	log.Println("asked to create a game")
-	g, err := games.get("", true)
-	if err != nil {
-		http.Error(w, err.Error(), http.StatusInternalServerError)
-		return
+
+	requested_game_name := idg.Hash()
+	width, height := float32(*width), float32(*height)
+
+	// here we determine if we are going to run with defaults or pick them off
+	// a posted json blob
+	if req.Method == "POST" {
+		body, err := ioutil.ReadAll(req.Body)
+		if err != nil {
+			log.Printf("unable to read request body:", err)
+		}
+		req.Body.Close()
+		conf := struct {
+			With   float32 `json:"width"`
+			Height float32 `json:"height"`
+			Name   string  `json:"name"`
+		}{}
+		err = json.Unmarshal(body, &conf)
+		if err != nil {
+			NewFailure(err.Error())
+			if err := json.NewEncoder(w).Encode(NewFailure(err.Error())); err != nil {
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+			}
+			return
+		}
+		requested_game_name = conf.Name
+		width = conf.With
+		height = conf.Height
+	}
+
+	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)
+		go g.run()
+		games.add(g)
+	} else {
+		log.Printf("Game '%s' found: %p", requested_game_name, g)
 	}
 
 	game_json := struct {