Lightning Launcher

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====== About the script ======
  * Purpose : This script is will give you the possibility to play Snake in your launcher
  * Author : [[https://plus.google.com/+LukasMorawietz|LM13]]
  * Current Version : 1.0
  * Link : https://plus.google.com/115366157037831519359/posts/66u6CJgMnGC
  * Download avialable! (Check repository)

====== Changelog ====== 
  * Version 1.0 (28/8/2014): initial release in wiki

====== How to use the script ======
  * create a shortcut and hide it's label and icon
  * Resize it to the wished game size
  * set this script to the Touchevent


====== Issues and hints ======
  * None yet
//please report all bugs in the g+ community//

====== Script ======
<sxh javascript;>//config
var bgColor=0xffffffff;//has to be a solid color;
var headColor=0xff00ff00;
var tailColor=0xff008000;
var foodColor=0xff000090;
var borderColor=0xffff0000;
var tick=130;
var fieldSize=30;//the width of the field
//endconfig

var size=Math.min(item.getWidth(),item.getHeight())/fieldSize;

if(event.getAction()==MotionEvent.ACTION_DOWN)
{
	pos=[event.getX(),event.getY()];
}
else if(event.getAction()==MotionEvent.ACTION_UP&&Math.abs(pos[0]-event.getX())<size*2&&Math.abs(pos[1]-event.getY())<size*2)
{
	if(typeof alive==='undefined'||!alive)
	{
		if(event.eventTime-event.downTime<300)
		{
			Android.makeNewToast("To Start a new game long press and then release anywhere",true).show();
			return;
		}
		else
		{
			paint=new Paint();
			image=item.getBoxBackground("n");
			if(image.getWidth()!=item.getWidth()||image.getHeight()!=item.getHeight())image=LL.createImage(item.getWidth(),item.getHeight());
			canvas=image.draw();
			item.setBoxBackground(image,"n");
			alive=true;
			snake=[[rand(3,item.getWidth()/size-3),rand(3,item.getHeight()/size-3)]];
			dir=rand(0,4);
			dirChanged=false;
			snake.push([snake[0][0]+(dir==0||dir==2?0:dir==1?-1:1),snake[0][1]+(dir==1||dir==3?0:dir==2?-1:1)]);
			snake.push([snake[0][0]+(dir==0||dir==2?0:dir==1?-2:2),snake[0][1]+(dir==1||dir==3?0:dir==2?-2:2)]);
			newFood();
			score=0;
			draw();
			var countDown=3;
			setTimeout(start,tick);
		}
	}
	else if(!dirChanged)
	{
		dir=((dir+(event.getX()<item.getWidth()/2?-1:1))+4)%4;
		dirChanged=true;
	}
}

function start()
{
	if(countDown==0)
	{
		Android.makeNewToast("Start!",true).show();
		setTimeout(move,tick);
	}
	else
	{
		Android.makeNewToast(countDown+"...",true).show();
		countDown-=1;
		setTimeout(start,2000);
	}
}

function rand(min,max)//random Integer out of [min,max)
{
	return Math.floor(Math.random()*(max-min))+min;
}

function move()
{
	var next=[snake[0][0]+(dir==0||dir==2?0:dir==1?1:-1),snake[0][1]+(dir==1||dir==3?0:dir==2?1:-1)];
	if(next[0]<1||next[0]>Math.floor(item.getWidth()/size)-2||next[1]<1||next[1]>Math.floor(item.getHeight()/size)-2||contains(snake,next))
	{
		alive=false;
		Android.makeNewToast("Lost! Score: "+score,false).show();
	}
	else
	{
		snake.unshift(next);
		if(next[0]==food[0]&&next[1]==food[1])
		{
			score+=1;
			newFood();
		}
		else snake.pop();
		dirChanged=false;
		draw();
		setTimeout(move,tick);
	}
}

function draw()
{
	canvas.drawColor(bgColor);
	paint.setColor(headColor);
	canvas.drawRect(snake[0][0]*size,snake[0][1]*size,snake[0][0]*size+size,snake[0][1]*size+size,paint);
	paint.setColor(tailColor);
	for(var a=1;a<snake.length;a++)
	{
		canvas.drawRect(snake[a][0]*size,snake[a][1]*size,snake[a][0]*size+size,snake[a][1]*size+size,paint);
	}
	paint.setColor(foodColor);
	canvas.drawRect(food[0]*size,food[1]*size,food[0]*size+size,food[1]*size+size,paint);
	paint.setColor(borderColor);
	canvas.drawRect(0,0,size,item.getHeight(),paint);
	canvas.drawRect(0,0,item.getWidth(),size,paint);
	canvas.drawRect((Math.floor(item.getWidth()/size)-1)*size,0,item.getWidth(),item.getHeight(),paint);
	canvas.drawRect(0,(Math.floor(item.getHeight()/size)-1)*size,item.getWidth(),item.getHeight(),paint);
	image.update();
	item.setBoxBackground(image,"n");
}

function newFood()
{
	do
	{
		food=[rand(1,Math.floor(item.getWidth()/size)-2),rand(1,Math.floor(item.getHeight()/size)-2)];
	}
	while(contains(snake,food));
}

function contains(array,i)
{
	for(j=0;j<array.length;j++)
	{
		if(array[j][0]==i[0]&&array[j][1]==i[1])return true;
	}
	return false;
}
</sxh>
Lightning Launcher

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