don't spawn in walls

lib/spawner.js

@@ -10,25 +10,26 @@ function Spawner(game) {
  var x = chunk.position[0] * chunk.shape[0]
  var y = chunk.position[1] * chunk.shape[1]
  for (var i = 0; i < 10; i += 1) {
- var enemy = new Enemy
- game.add(enemy)
- enemy.body.SetPosition(new b2Vec2(Math.random() * 30 + x, Math.random() * 30 + y))
+ var ex = Math.random() * 30
+ var ey = Math.random() * 30
+ if (chunk.get(ex|0, ey|0)) {
+ var enemy = new Enemy
+ game.add(enemy)
+ enemy.body.SetPosition(new b2Vec2(x + ex, y + ey))
+ }
  }
  })
+
  game.field.grid.on('removed', function(chunk) {
  var cx = chunk.position[0] * chunk.shape[0]
  var cy = chunk.position[1] * chunk.shape[1]
  var spawned = game.find('spawned')
- var n = 0
  for (var i = 0; i < spawned.length; i += 1) {
  var b = spawned[i].body
  var x = b.m_xf.position.x
  var y = b.m_xf.position.y
- if (x > cx && y > cy && x < cx+30 && y < cy+30) {
- n += 1
+ if (x > cx && y > cy && x < cx+30 && y < cy+30)
  spawned[i].flagged = true
- }
  }
- console.log(n, 'removed')
  })
 }