working hit detection (3 files)

gistfile1.txt

package  {
	import flash.geom.Vector3D;
	import org.flixel.FlxGroup;
	import org.flixel.FlxSprite;
	import org.flixel.FlxState;
	import org.flixel.FlxG;
	import org.flixel.FlxCamera;
	import org.flixel.FlxRect;
	import org.flixel.system.input.Keyboard;

	public class TestState extends FlxState {
		
		var _player:FlxSprite = new FlxSprite();
		var _objs:FlxGroup = new FlxGroup();
		var _bullets:FlxGroup = new FlxGroup();
		
		public function TestState() {
			super();
		}
		
		public override function create():void {
			super.create();
			
			FlxG.worldBounds = new FlxRect(0, 0, 10000, 10000);
			
			_player.makeGraphic(10, 10, 0xFFFFFFFF);
			this.add(_player);
			this.add(_objs);
			this.add(_bullets);
			
			_objs.add(new Box(800, 800).rotate(15));
			_objs.add(new Box(700, 700));
			_objs.add(new Box(600, 600).rotate(25));
			_objs.add(new Box(500, 500));
			_objs.add(new Box(400, 400));
			_objs.add(new Box(300, 300).rotate(75));
			_objs.add(new Box(200, 200));
			_objs.add(new Box(100, 100).rotate(45));
			_objs.add(new Box(50, 50));
			
			FlxG.camera.follow(_player);
		}
		
		public override function update():void {
			super.update();
			
			if (FlxG.keys.pressed("W")) {
				_player.y -= 2;
			}
			if (FlxG.keys.pressed("A")) {
				_player.x -= 2;
			}
			if (FlxG.keys.pressed("S")) {
				_player.y += 2;
			}
			if (FlxG.keys.pressed("D")) {
				_player.x += 2;
			}
			
			if (true) {
				_bullets.add(new Bullet(_player.x,_player.y,0,2,3000));
			}
			
			for (var i:int = 0; i < _bullets.length; i++) {
				var b:Bullet = _bullets.members[i];
				b.game_update();
				
				if (b._ct <= 0) {
					_bullets.remove(b, true);
				}
			}
			
			
			FlxG.overlap(_bullets, _objs, function(bullet:Bullet, box:Box) {
				if (bullet.overlaps(box,false,FlxG.camera)) {
					_bullets.remove(bullet, true);
				}
			});
			
		}
		
	}

}


package  {
	import org.flixel.FlxSprite;
	import flash.geom.*;
	public class Bullet extends FlxSprite {
		public var _ct:Number, _vel:Vector3D = new Vector3D();
		public function Bullet(x:Number, y:Number, vx:Number, vy:Number, ct:Number) {
			this.x = x;
			this.y = y;
			_vel.x = vx;
			_vel.y = vy;
			_ct = ct;
			this.makeGraphic(5, 5, 0xFFFFFFFF);
		}
		
		public function game_update():void {
			this.x += _vel.x;
			this.y += _vel.y;
			_ct--;
		}
	}

}

package  {
	import org.flixel.FlxSprite;
	import flash.geom.*;
	public class Box extends FlxSprite {
		public function Box(x:Number, y:Number) {
			this.x = x;
			this.y = y;
			this.makeGraphic(30, 30, 0xFFFFFFFF);
		}
		
		public function rotate(f:Number):Box {
			this.angle = f;
			return this;
		}
	}

}