half-baked enemies

game.js

@@ -45,11 +45,8 @@ Game.prototype.start = function() {
  this.player = new (require('./entities/player'))
  this.add(this.player)
 
- var Enemy = require('./components/enemy')(2, 2, 0, 0)
- for (var _i = 0; _i < 10; _i += 1) {
- var en = new Enemy
- this.add(en)
- }
+ var Spawner = require('./lib/spawner')
+ var spawner = new Spawner(this)
 }
 
 var framecounter = fps({ every: 1, decay: 0.5 })

lib/spawner.js

@@ -0,0 +1,34 @@
+module.exports = Spawner
+
+function Spawner(game) {
+ if (!(this instanceof Spawner)) return new Spawner(game)
+
+ var Enemy = require('../components/enemy')(2, 2, 0, 0).tag('spawned')
+ var b2Vec2 = require('box2dweb-commonjs').Box2D.Common.Math.b2Vec2
+
+ game.field.grid.on('created', function(chunk) {
+ 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))
+ }
+ })
+ 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
+ spawned[i].flagged = true
+ }
+ }
+ console.log(n, 'removed')
+ })
+}