====== About the script ======
  * Purpose : This script 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 : 3.0.1
  * Link : https://plus.google.com/115366157037831519359/posts/GXVcfSaWVRi
  * Video : https://plus.google.com/115366157037831519359/posts/N4vKniRC4pe
  * Download avialable! (Check repository)


====== 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
  * Version 3.0.1 (20/7/2014): standalone, improved smoothness

====== How to use the script ======
  * Set the 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
  * 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 
  * 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//

====== Script code ======
<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!="XY")
{
var data=new Object();
data.posx=i.getPositionX();
data.posy=i.getPositionY();
data.rot=Math.abs(i.getRotation())==90;
data.pin=pinned;
if(i.getProperties().getBoolean("i.onGrid")) data.onGrid=true; 
else data.onGrid=false;
i.getProperties().edit().setBoolean("i.onGrid",false).commit();
i.setTag(JSON.stringify(data));
if(pinned=="X")
{
var ypages=cont.pages[Math.floor(data.posx/dwidth)-minpagex][Math.floor(data.posy/dheight)-minpagey];
for(z=0;z<ypages.length;z++)
cont.pages[z][Math.floor(data.posy/dheight)-minpagey].push(i.getId());
}
else if(pinned=="Y")
{
var xpages=cont.pages[Math.floor(data.posx/dwidth)-minpagex];
for(z=0;z<xpages.length;z++)
xpages[z].push(i.getId());
}
else cont.pages[Math.floor(data.posx/dwidth)-minpagex][Math.floor(data.posy/dheight)-minpagey].push(i.getId());
}
} 
cont.setup=true;
Android.makeNewToast("Animation enabled",true).show();
} 
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);

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;
var items=(cont.pages[(cont.statex?maxpagex:currentx)-minpagex]||[])[(cont.statey?maxpagey:currenty)-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(data.pin=="X"?1:1-(data.rot?percenty:percentx),data.pin=="Y"?1:1-(data.rot?percentx:percenty));
item.setPosition(data.pin=="X"?data.posx:dposx+((data.posx%dwidth+dwidth)%dwidth)*(1-percentx),data.pin=="Y"?data.posy:dposy+((data.posy%dheight+dheight)%dheight)*(1-percenty));
}
}
var items=(cont.pages[currentx+1-minpagex]||[])[(cont.statey?maxpagey:currenty)-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(data.pin=="X"?1:data.rot?1-percenty:percentx>0.005?percentx:1,data.pin=="Y"?1:data.rot?(percentx>0.005?percentx:1):1-percenty);
item.setPosition(data.pin=="X"?data.posx:dposx+dwidth-(dwidth-(data.posx%dwidth+dwidth)%dwidth)*percentx,data.pin=="Y"?data.posy:dposy+((data.posy%dheight+dheight)%dheight)*(1-percenty));
}
}
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(data.pin=="X"?1:data.rot?(percenty>0.005?percenty:1):1-percentx, data.pin=="Y"?1:data.rot?1-percentx:percenty>0.005?percenty:1);
item.setPosition(data.pin=="X"?data.posx:dposx+((data.posx%dwidth+dwidth)%dwidth)*(1-percentx),data.pin=="Y"?data.posy:dposy+dheight-(dheight-(data.posy%dheight+dheight)%dheight)*percenty);
}
}
var items=(cont.pages[currentx+1-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(data.pin=="X"?1:data.rot?(percenty>0.005?percenty:1):percentx>0.005?percentx:1,data.pin=="Y"?1:data.rot?(percentx>0.005?percentx:1):percenty>0.005?percenty:1);
item.setPosition(data.pin=="X"?data.posx:dposx+dwidth-(dwidth-(data.posx%dwidth+dwidth)%dwidth)*percentx,data.pin=="Y"?data.posy:dposy+dheight-(dheight-(data.posy%dheight+dheight)%dheight)*percenty);
}
}
}
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());
item.setScale(1,1);
item.setPosition(data.posx,data.posy);
}
}
</sxh>