Lightning Launcher

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====== About the script ======
  * Purpose : This script will give you a beautiful page transition animation and an optional horizontal & vertical page loop
  * Author : [[https://plus.google.com/+LukasMorawietz|LM13]]
  * Current Version : 2.0
  * Link: https://plus.google.com/115366157037831519359/posts/QHC7KRy8tVg
  * Video : https://plus.google.com/115366157037831519359/posts/4Ktw58WRMji
  * Download avialable! (Check repository)

====== Changelog ======
  * Version 1.0 (18/5/2014): initial release in wiki
  * Version 2.0 (24/7/2014): standalone, reworked structure, fix for pre-scaled items

====== How to use the script ======
  * Set the script to the positionchanged event of your container
  * enable infinte scrolling if you want a page loop, disable it if you don't want to loop through pages
  * in this container: create a shortcut to the script
  * one click on the shortcut will enable the animation, clicking again will disable the animation. 
  * BE SURE TO DISABLE THE ANIMATION BEFORE YOU EDIT, MOVE OR ADD ITEMS!

====== Issues and Hints ======
  * 1-direction pinned items are not supported

//please report all bugs in the g+ community!//

====== Script ======
<sxh javascript;>var e=LL.getEvent();
var d=e.getContainer();
var cont=JSON.parse(d.getTag()||"null");
var items=d.getItems();
var dwidth=d.getWidth();
var dheight=d.getHeight();

if(e.getSource()!="C_POSITION_CHANGED")
{
	if(cont==null)cont=new Object();
	var box=d.getBoundingBox();
	cont.minx=box.getLeft();
	cont.maxx=box.getRight();
	cont.miny=box.getTop();
	cont.maxy=box.getBottom();
	var minpagex=Math.floor(cont.minx/dwidth);
	var minpagey=Math.floor(cont.miny/dheight);
	if(cont.setup!=true)
	{
		cont.pages=[];
		for(x=0;x<Math.ceil(cont.maxx/dwidth)-minpagex;x++)
		{
			cont.pages[x]=[];
			for(y=0;y<Math.ceil(cont.maxy/dheight)-minpagey;y++)
			{
				cont.pages[x][y]=[];
			}
		}
		for(x=0;x<items.length;x++)
		{
			var i=items.getAt(x);
			var pinned=i.getProperties().getString("i.pinMode");
			if(pinned=="NONE")
			{
				var data=new Object();
				data.posx=i.getPositionX();
				data.posy=i.getPositionY();
				data.rot=Math.abs(i.getRotation())==90;
				data.sx=data.rot?i.getScaleX():i.getScaleY();
				data.sy=data.rot?i.getScaleY():i.getScaleX();
				if(i.getProperties().getBoolean("i.onGrid"))data.onGrid=true;
				else data.onGrid=false;
				i.getProperties().edit().setBoolean("i.onGrid",false).commit();
				cont.pages[Math.floor(data.posx/dwidth)-minpagex][Math.floor(data.posy/dheight)-minpagey].push(i.getId());
				i.setTag(JSON.stringify(data));
			}
		}
		cont.setup=true;
		Android.makeNewToast("Animation enabled",true).show();
		LL.writeToLogFile(JSON.stringify(cont.pages),false);
	}
	else
	{
		var cellw=d.getCellWidth();
		var cellh=d.getCellHeight();
		for(x=0;x<items.length;x++)
		{
			var i=items.getAt(x);
			var data=JSON.parse(i.getTag());
			i.setScale(1,1);
			if(data!=null&&data.onGrid==true)
			{
				iwidth=i.getWidth();
				iheight=i.getHeight();
				i.getProperties().edit().setBoolean("i.onGrid",true).commit();
				i.setCell(Math.round(data.posx/cellw),Math.round(data.posy/cellh),Math.round((data.posx+iwidth)/cellw),Math.round((data.posy+iheight)/cellh));
			}
		}
		cont.setup=false;
		Android.makeNewToast("Animation disabled",true).show();
	}
	d.setTag(JSON.stringify(cont));
}


if(cont==null||!cont.setup||d.getPositionScale()!=1)return;
var dposx=d.getPositionX();
var dposy=d.getPositionY();
var currentx=Math.floor(dposx/dwidth);
var pageposx=currentx*dwidth;
var percentx=(dposx-pageposx)/dwidth;
var currenty=Math.floor(dposy/dheight);
var pageposy=currenty*dheight;
var percenty=(dposy-pageposy)/dheight;
var maxpagex=Math.floor((cont.maxx-dwidth)/dwidth);
var maxpagey=Math.floor((cont.maxy-dheight)/dheight);
var minpagex=Math.floor(cont.minx/dwidth);
var minpagey=Math.floor(cont.miny/dheight);
var percent=(Math.abs(0.5-percentx)<Math.abs(0.5-percenty))?percentx:percenty;

if(percent>0.005&&percent<99.995&&dposx>cont.minx-dwidth&&dposy>cont.miny-dheight)
{
	var scrollLimit=d.getProperties().getBoolean("noScrollLimit");
	if(dposx>cont.maxx-dwidth&&scrollLimit)
	d.setPosition(cont.minx-dwidth,dposy,1,false);
	else if(dposy>cont.maxy-dheight&&scrollLimit)d.setPosition(dposx,cont.miny-dheight,1,false);
	if(dposx<cont.minx&&scrollLimit)
	cont.statex=true;
	if(dposy<cont.miny&&scrollLimit)
	cont.statey=true;

	var items0=(cont.pages[(cont.statex?maxpagex:currentx)-minpagex]||[])[(cont.statey?maxpagey:currenty)-minpagey];
	if(items0!=null)
	{
		for(z=0;z<items0.length;z++)
		{
			var item=LL.getItemById(items0[z]);
			var data=JSON.parse(item.getTag());
			item.setScale((percent>=0.5?1:1-percent*2)*data.sx,(percent>=0.5?1:1-percent*2)*data.sy);
			item.setPosition(dposx+((data.posx%dwidth+dwidth)%dwidth)+percent*(dwidth-((data.posx%dwidth+dwidth)%dwidth)*2),dposy+((data.posy%dheight+dheight)%dheight)+percent*(dheight-((data.posy%dheight+dheight)%dheight)*2));
			item.setVisibility(percent<0.5);
		}
	}
	if(percentx==percent)
	{
		var items=(cont.pages[currentx+1-minpagex]||[])[(cont.statey?maxpagey:currenty)-minpagey];
	}
	else
	{
		var items=(cont.pages[(cont.statex?maxpagex:currentx)-minpagex]||[])[currenty+1-minpagey];
	}
	if(items!=null)
	{
		for(z=0;z<items.length;z++)
		{
			var item=LL.getItemById(items[z]);
			var data=JSON.parse(item.getTag());
			item.setScale((percent<0.5?1:2*percent-1)*data.sx,(percent<0.5?1:2*percent-1)*data.sy);
			item.setPosition(dposx+dwidth/2*(2-percent*2)+((data.posx%dwidth+dwidth)%dwidth)*(percent*2-1),dposy+dheight/2*(2-percent*2)+((data.posy%dheight+dheight)%dheight)*(percent*2-1));
			item.setVisibility(percent>=0.5);
		}
	}
}
else
{
	d.setPosition(dposx,dposy);
	d.setPosition(dposx<cont.minx?cont.maxx-dwidth:dposx,dposy<cont.miny?cont.maxy-dheight:dposy,1,false);
	cont.statex=false;
	cont.statey=false;
	for(i=0;i<items.length;i++)
	{
		item=items.getAt(i);
		var data=JSON.parse(item.getTag());
		if(data!=null)
		{
			item.setScale(data.sx,data.sy);
			item.setPosition(data.posx,data.posy);
			item.setVisibility(true);
		}
	}
}
</sxh>
Lightning Launcher

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