/*
Fabricio C Zuardi
VII Semana da ComputaŤ‹o
ICMC - USP, Sao Carlos
19 de Outubro de 2004
*/

VELO = 5;
MOVIEWIDTH = Stage.width;
MOVIEHEIGHT = Stage.height;
nave_mc.energia = 100;
nave_mc.vidas = 3;
nave_mc.vulneravel = true;
ast_cont = 0;

intervalo = setInterval(mandaAsteroide,1000);

//TODO: clear no gameover

function mandaAsteroide(){	
	ast_mc.duplicateMovieClip("ast_"+ast_cont,ast_cont);
	_root["ast_"+ast_cont].onEnterFrame = moveAsteroide;
	_root["ast_"+ast_cont].vx = 20;
	_root["ast_"+ast_cont]._y = random(MOVIEHEIGHT)
	_root["ast_"+ast_cont].gotoAndStop(random(ast_mc._totalframes)+1)
	ast_cont++;
}


function moveAsteroide():Void{
	this._x -= this.vx;
	if(this._x < 0){
		this._x = MOVIEWIDTH;
		this._y = random(MOVIEHEIGHT)
		this.gotoAndStop(random(this._totalframes)+1)
		this.removeMovieClip()
	}
	if((this.hitTest(nave_mc))&&(nave_mc.vulneravel)){
		nave_mc.energia -= 30;
		if(nave_mc.energia <=0){
		//morreu
			nave_mc.vidas --;
			nave_mc.vulneravel = false;
			nave_mc.gotoAndStop("explosao")
			vidas_mc.gotoAndStop(4-nave_mc.vidas);
			nave_mc.energia =100;
			if(nave_mc.vidas<0){
				gotoAndStop("gameover")
			}
		}
		energy_mc.bar_mc._xscale = nave_mc.energia
		this.removeMovieClip()
	}
}

function fimExplosao(){
	nave_mc.gotoAndStop("reentrada")
}

function fimReentrada(){
	nave_mc.vulneravel = true
	nave_mc.gotoAndStop(1)
}

nave_mc.onKeyDown = function(){
	if(Key.getCode() == Key.UP){
		nave_mc.vy = -VELO;
	}
	if(Key.getCode() == Key.DOWN){
		nave_mc.vy = +VELO;
	}
	if(Key.getCode() == Key.LEFT){
		nave_mc.vx = -VELO;
	}
	if(Key.getCode() == Key.RIGHT){
		nave_mc.vx = +VELO;
	}
	if(Key.getCode() == Key.SPACE){
		mandaAsteroide();
	}
}

nave_mc.onKeyUp = function(){
	if(Key.getCode() == Key.UP){
		nave_mc.vy = 0;
	}
	if(Key.getCode() == Key.DOWN){
		nave_mc.vy = 0;
	}
	if(Key.getCode() == Key.LEFT){
		nave_mc.vx = 0;
	}
	if(Key.getCode() == Key.RIGHT){
		nave_mc.vx = 0;
	}
}

Key.addListener(nave_mc);

nave_mc.onEnterFrame = function(){
	this._y += this.vy;
	this._x += this.vx;
}