diff --git a/game.go b/game.go
index 6532a50..d851104 100644
--- a/game.go
+++ b/game.go
@@ -7,20 +7,21 @@ import (
 )
 
 type game struct {
-	players     map[*player]bool
-	projectiles map[*projectile]bool
-	splosions   map[*splosion]bool
-	register    chan *player
-	unregister  chan *player
-	robot_id    chan int
-	turn        int
-	spectators  map[*Spectator]bool
-	sregister   chan *Spectator
-	sunregister chan *Spectator
-	kill        chan bool
+	players       map[*player]bool
+	projectiles   map[*projectile]bool
+	splosions     map[*splosion]bool
+	register      chan *player
+	unregister    chan *player
+	robot_id      chan int
+	turn          int
+	width, height float64
+	spectators    map[*Spectator]bool
+	sregister     chan *Spectator
+	sunregister   chan *Spectator
+	kill          chan bool
 }
 
-func NewGame() *game {
+func NewGame(width, height float64) *game {
 	return &game{
 		register:    make(chan *player),
 		unregister:  make(chan *player),
@@ -28,6 +29,8 @@ func NewGame() *game {
 		splosions:   make(map[*splosion]bool),
 		players:     make(map[*player]bool),
 		turn:        0,
+		width:       width,
+		height:      height,
 		spectators:  make(map[*Spectator]bool),
 		sregister:   make(chan *Spectator),
 		sunregister: make(chan *Spectator),