Level.as

package
{
	import flash.system.*;
	import flash.utils.getDefinitionByName;
	import flash.display.MovieClip;
	import flash.events.Event;
	import com.iainlobb.gamepad.Gamepad;
	import flash.display.Stage;
	import flash.geom.Point;
	
	public class Level extends MovieClip 
	{
		public var main:Main;
		public var enemies:Array = [];
		public var items:Array = [];
		
		public var currentLevel = 1;
		public var levels = 2;
		
		var itemLocations:Array = 
		[
			[
				{ type: "sandwich", x: 510, y: -90 },
				{ type: "sandwich", x: 800, y: -130 }
			],
			[
				{ type: "sandwich", x: 510, y: -90 },
				{ type: "sandwich", x: 800, y: -90 }
			]
		];
		
		
		var enemyLocations:Array = 
		[
			[
				{ type: "shooter", x: 700, y: -130 },
				{ type: "walker", x: 500, y: -130 }
			],
			[
				{ type: "walker", x: 510, y: -130 },
				{ type: "walker", x: 520, y: -130 },
				{ type: "walker", x: 530, y: -130 },
				{ type: "walker", x: 540, y: -130 },
				{ type: "walker", x: 550, y: -130 },
				{ type: "walker", x: 560, y: -130 },
				{ type: "walker", x: 570, y: -130 },
				{ type: "walker", x: 580, y: -130 },
				{ type: "walker", x: 590, y: -130 },
				{ type: "walker", x: 500, y: -130 },
				{ type: "walker", x: 310, y: -130 },
				{ type: "walker", x: 320, y: -130 },
				{ type: "walker", x: 330, y: -130 },
				{ type: "walker", x: 340, y: -130 },
				{ type: "walker", x: 350, y: -130 },
				{ type: "walker", x: 360, y: -130 },
				{ type: "walker", x: 370, y: -130 },
				{ type: "shooter", x: 700, y: -130 },
			 ]
		];
		
		
		public function Level(main:Main) 
		{
			this.main = main;
			
			// Level one
			this.gotoAndStop(1);

			addEventListener(Event.ADDED_TO_STAGE, addedToStage);
		}
		
		private function addedToStage(event:Event)
		{
			x = -200;
			y = stage.stageHeight - 50;
			
			createEnemies();
			createItems();
		}
		
		public function move(speed)
		{
			// Stop at level edges
			if((speed < 0 && (x + 20) < 0) || (speed > 0 && (x + width) - 20 > stage.stageWidth))
			{
				x += Math.round(-speed * 10);
				main.bg.move(speed);
			} else if((x + width) - 50 < stage.stageWidth) {
				// Level end
				main.nextLevel();
			}

		}
		
		public function nextLevel()
		{
			this.currentLevel++;
			
			if(currentLevel > levels)
			{
				main.finished();
			} else {
				gotoAndStop(currentLevel);
				
				x = -100;
				y = stage.stageHeight - 50;
				
				clearLevel();
				
				createEnemies();
				createItems();
			}
		}
		
		public function createItems()
		{
			
			if(itemLocations[currentLevel-1].length > 0)
			{
				for each (var item in itemLocations[currentLevel - 1])
				{
					var type = item['type'].substr(0, 1).toUpperCase() + item['type'].substr(1, item['type'].length - 1).toLowerCase();
																		
					if (ApplicationDomain.currentDomain.hasDefinition(type) ) 
					{
						var ref:Class = getDefinitionByName(type) as Class;
						var newItem:MovieClip = new ref(main, item['x'], item['y']) as MovieClip;						
						addChild(newItem);
						this.items.push(newItem);
					}					
				}
			}
			
		}
		
		public function createEnemies()
		{
			if(enemyLocations[currentLevel - 1].length > 0)
			{
				for each (var enemy in enemyLocations[currentLevel - 1])
				{
					var type = enemy['type'].substr(0, 1).toUpperCase() + enemy['type'].substr(1, enemy['type'].length - 1).toLowerCase();
																		
					if (ApplicationDomain.currentDomain.hasDefinition(type) ) 
					{
						var ref:Class = getDefinitionByName(type) as Class;
						var newEnemy:MovieClip = new ref(main, enemy['x'], enemy['y']) as MovieClip;						
						addChild(newEnemy);
						this.enemies.push(newEnemy);
					}					
				}
			}
		}
		
		public function clearLevel()
		{
			for each (var enemy in enemies)
			{
				enemy.visible = false;
				removeChild(enemy);
			}
			
			for each (var item in items)
			{
				item.visible = false;
				removeChild(item);
			}
		}
		
	}
}