package  {
	import student_papervision_samples_PaperBase;
	
	import org.papervision3d.lights.PointLight3D;
	import org.papervision3d.materials.shadematerials.FlatShadeMaterial;
	import org.papervision3d.materials.utils.MaterialsList;
	import org.papervision3d.materials.WireframeMaterial;
	import org.papervision3d.objects.primitives.Cube;
	import org.papervision3d.objects.primitives.Plane;
	import org.papervision3d.objects.parsers.MD2;
	import org.papervision3d.cameras.Camera3D;
	import org.papervision3d.materials.BitmapFileMaterial;
	
	import caurina.transitions.Tweener;
	
	import flash.events.KeyboardEvent;
	import flash.text.TextField;
	import flash.text.TextFormat;

	public class student_papervision_samples_CF05 extends student_papervision_samples_PaperBase {
		public var updown:Boolean = false;
		public var leftdown:Boolean = false;
		public var downdown:Boolean = false;
		public var rightdown:Boolean = false;
		public var standing:Boolean = true;
		public var speed:Number = 150; //			Here you can set the speed of the object. 
		public var text:TextField = new TextField();
		public var rotationPosition:Number = 0;	
		public var rotationGoal:Number = 0;	
		public var rotationBase:Number = 0; 
		
		private var fontstyle:TextFormat = new TextFormat("Arial",44,0x000000);
		private var cube2:Cube;
		private var mat:FlatShadeMaterial = new FlatShadeMaterial(new PointLight3D(), 0xFFFFFF, 0xFF0000);
		private var mat2:WireframeMaterial = new WireframeMaterial(0x00FF00);
		private var sheepTexture:BitmapFileMaterial = new BitmapFileMaterial("Sheep.png"); // here you can set the texture image for the player-model
		private var plane:Plane = new Plane(null, 2000, 2000, 10, 10);
		private var sheep:MD2 = new MD2(true); //if you get errors try using false - it may be a single frame file (no animation)
		private var bottom:Boolean = false;
		
	   
		public function student_papervision_samples_CF05() {
			init(600, 300);
			
			stage.addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown);
			stage.addEventListener(KeyboardEvent.KEY_UP, onKeyUp);
		}
		
		override protected function init3d():void{
			cube2 = new Cube(new MaterialsList( { all: mat2 } ), 100, 100, 100);
			cube2.y = 0;
			cube2.x = 1000;
			cube2.z = 1000;
			plane.material.lineColor = 0x777777;
			plane.material.doubleSided = true;
			plane.pitch(90);
			plane.y = -50;
			default_scene.addChild(plane);
			default_scene.addChild(cube2);
			
			default_camera.x = 0;
			default_camera.z = 1000;
			default_camera.y = 1000;
			
			sheep.load("sheep-walk.md2", sheepTexture); // This piece of code loads in the .md2-model
			sheep.y = 200;
			sheep.scale = 13;
			sheep.rotationX = -90;
			default_scene.addChild(sheep);
			Tweener.addTween(sheep, { x:500, z:500, time:2, onComplete: randomize } );
		}
		
		override protected function init2d():void {
			addChild(text);	
			text.selectable = false;
			text.setTextFormat(fontstyle);
			text.width = 800;
			text.text = "Multimedia Authoring - ~vr0815";
		}
		
		public function randomize():void {
			cube2.x = sheep.x;
			cube2.z = sheep.z;
		}
		
		public function reset():void {
			bottom = false;
		}
		
		public function onKeyDown( event:KeyboardEvent ):void {
			switch(event.keyCode) {
				case 38:
					updown = true;
				break;
				case 37:
					leftdown = true;
				break;
				case 40:
					downdown = true;
				break;
				case 39:
					rightdown = true;
				break;
			}
		}
		
		public function onKeyUp( event:KeyboardEvent ):void {
			switch(event.keyCode) {
				case 38:
					updown = false;
				break;
				case 37:
					leftdown = false;
				break;
				case 40:
					downdown = false;
				break;
				case 39:
					rightdown = false;
				break;
			}
		}
		
		override protected function processFrame():void {
			var xp:Number = 0;
			var yp:Number = 0;
			
			if(rotationBase == rotationPosition % 360) {
				if (updown && leftdown) {
					xp = sheep.x + speed;
					yp = sheep.z + speed;
					rotationGoal = 315; // RotationGoal keeps track of which direction you want to rotate to, in degrees.
					Tweener.addTween(sheep, { x:xp, z:yp, time:2, onComplete: randomize } );
				} else if (updown && rightdown) {
					xp = sheep.x + speed;
					yp = sheep.z - speed;
					rotationGoal = 45;
					Tweener.addTween(sheep, { x:xp, z:yp, time:2, onComplete: randomize } );
				} else if (downdown && leftdown) {
					xp = sheep.x - speed;
					yp = sheep.z + speed;
					rotationGoal = 225;
					Tweener.addTween(sheep, { x:xp, z:yp, time:2, onComplete: randomize } );
				} else if (downdown && rightdown) {
					xp = sheep.x - speed;
					yp = sheep.z - speed;
					rotationGoal = 135;
					Tweener.addTween(sheep, { x:xp, z:yp, time:2, onComplete: randomize } );
				} else if (updown) {
					xp = sheep.x + speed;
					yp = sheep.z;
					rotationGoal = 0;
					Tweener.addTween(sheep, { x:xp, z:yp, time:2, onComplete: randomize } );
				} else if (downdown) {
					xp = sheep.x - speed;
					yp = sheep.z;
					rotationGoal = 180;
					Tweener.addTween(sheep, { x:xp, z:yp, time:2, onComplete: randomize } );
				} else if (leftdown) {
					xp = sheep.x;
					yp = sheep.z + speed;
					rotationGoal = 270;
					Tweener.addTween(sheep, { x:xp, z:yp, time:2, onComplete: randomize } );
				} else if (rightdown) {
					xp = sheep.x;
					yp = sheep.z - speed;
					rotationGoal = 90;
					Tweener.addTween(sheep, { x:xp, z:yp, time:2, onComplete: randomize } );
				}
			}
	
			if (rotationPosition % 360 != rotationGoal) { //this piece of code rotates the player left or right, depending on which route is shorter. 
				if((((rotationBase % 360 - rotationGoal) < 0) && ((rotationBase % 360 - rotationGoal) > -181)) || ((rotationBase % 360 - rotationGoal) > 180)) {
					sheep.rotationY = sheep.rotationY + 15;
					rotationPosition = rotationPosition + 15;
				} else {
					sheep.rotationY = sheep.rotationY - 15;
					rotationPosition = rotationPosition - 15;
				}
			} else {
				rotationBase = rotationPosition % 360; 
			}
			
			if (updown || downdown || leftdown || rightdown) { // this piece of code animates the sheep if it's walking
				if(standing) {
					sheep.play();
					standing = false;
				}
			} else {
				sheep.stop();
				standing = true;
			}
			
			if (sheep.hitTestObject(plane) == false && bottom == false) {
				yp = sheep.y - speed * 5;
				Tweener.addTween(sheep, { y:yp, time:2 } )
			}
			
			if (sheep.y < -10000) {
				bottom = true;
				Tweener.addTween(sheep, { x:0, y:200, z:0, time:2, onComplete: reset } )
			}
			
			Tweener.addTween(default_camera, { x:sheep.x - 800, z:sheep.z, time:2, onComplete: randomize } )
			default_camera.lookAt(sheep);
            
            rotationPosition = rotationPosition % 360;
			if (rotationPosition < 0) {
				rotationPosition = rotationPosition + 360;
			}
		}
	}
}