added ability to autovivify games in debug mode

game.go

@@ -2,8 +2,10 @@ package main
 
 import (
 	v "bitbucket.org/hackerbots/vector"
+	"errors"
 	"log"
 	"sort"
+	"sync"
 	"time"
 )
 
@@ -37,6 +39,36 @@ type Scanner struct {
 	Stats    Stats     `json:"stats"`
 }
 
+type MapLock struct {
+	m map[string]*game
+	sync.RWMutex
+}
+
+func (ml *MapLock) getOrCreate(id string) (*game, error) {
+	ml.Lock()
+	g, ok := games.m[id]
+	ml.Unlock()
+
+	if ok {
+		return g, nil
+	}
+
+	if !*debug {
+		return nil, errors.New("game not found")
+	}
+
+	new_game_name := idg.Hash()
+
+	_g := NewGame(id, *width, *height)
+	go _g.run()
+
+	ml.Lock()
+	ml.m[new_game_name] = _g
+	ml.Unlock()
+
+	return _g, nil
+}
+
 type game struct {
 	id            string
 	players       map[*player]bool