Lightning Launcher

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====== About the script ======
  * Purpose : These scripts will give you a beautiful page transition animation and an optional horizontal and vertical page loop
  * Author : [[https://plus.google.com/+LukasMorawietz|LM13]]
  * Current Version : 2.1
  * Link : https://plus.google.com/115366157037831519359/posts/GXVcfSaWVRi
  * Video : https://plus.google.com/115366157037831519359/posts/N4vKniRC4pe

====== Changelog ====== 
  * Version 1.0 (1/4/2014): initial release in wiki
  * Version 2.0 (19/5/2014): added vertical support, improved smoothness
  * Version 2.1 (20/6/2014): added rotation check

====== How to use the script ======
  * Set the main script to the positionchanged event of your container
  * enable infinte scrolling if you want to have a screen loop
  * in this container: create a shortcut to the [[script_toggle_animation|Toggle Script]] and set up toggle scripts configuration
  * 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 ====== 
  * this will break any other script, which uses item or container tags, and will be broken by them   
  * at some point it may flicker 
  * with many items it won't run smooth
  * don't use dual position, this will do weird stuff
  * make sure all of your items have exactly one of the following rotations: 0°,90°,180°,270°

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

====== Main Script code ======
<code>var d=LL.getEvent().getContainer();
var cont= JSON.parse(d.getTag()||"null");
if(cont==null || !cont.setup || d.getPositionScale()!=1)return;
var dwidth=d.getWidth();
var dheight=d.getHeight();
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 items=d.getItems();
var l=items.getLength();
var maxpagex=Math.floor( (cont.maxx-dwidth)/dwidth);
var maxpagey=Math.floor( (cont.maxy-dheight)/dheight);

if(((percentx>0.005 && percentx<99.995) ||(percenty>0.005 && percenty<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;
for(i=0;i<l;i++)
{
item=items.getAt(i);
var pinned=item.getProperties() .getString("i.pinMode");
var data=JSON.parse(item.getTag());
var newposx=data.posx;
var newposy=data.posy;
var newscalex=1;
var newscaley=1;
var newvis=true;
if(pinned=="NONE"|| pinned=="Y")
{
if((Math.floor(data.posx/dwidth)==currentx || (cont.statex && Math.floor(data.posx/dwidth)==maxpagex))&&1-percentx>0.005)
{
newscalex=1-percentx;
newposx=dposx+((data.posx%dwidth+dwidth)%dwidth)*(1-percentx);
}
if(Math.floor(data.posx/dwidth) ==currentx+1 && percentx>0.005)
{
newscalex=percentx;
newposx=dposx+dwidth-(dwidth- ((data.posx%dwidth+dwidth)%dwidth))*percentx;
}
}
if(pinned=="NONE"|| pinned=="X")
{
if((Math.floor(data.posy/dheight)==currenty|| (cont.statey && Math.floor(data.posy/dheight)==maxpagey))&&1-percenty>0.005)
{
newscaley=1-percenty;
newposy=dposy+((data.posy%dheight+dheight)%dheight)*(1-percenty); }
if(Math.floor(data.posy/dheight) ==currenty+1&&percenty>0.005)
{
newscaley=percenty;
newposy=dposy+dheight-(dheight- ((data.posy%dheight+dheight)%dheight))*percenty;
}
} 
if(item.getRotation()==90||item. getRotation()==270) item.setScale(newscaley,newscalex);
else  item.setScale(newscalex,newscaley);
item.setPosition(newposx,newposy);
}
}
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<l;i++)
{
item=items.getAt(i);
var data=JSON.parse(item.getTag());
item.setScale(1,1);
item.setPosition(data.posx,data.posy);
}
}
</code>
Lightning Launcher

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