I am trying to make a block that has a texture on one side that updates if your right click the block while you have a block in you hand. But I want to have it update only that one block. Right now it is updating all those blocks in the world and when logging restarting minecraft the are back to the old texture again. I know I have to use tileenities for this but I don't know what how you save or load an icon. I am not a very experienced programmer or modder.

 

Here is the code that changes the texture when you right click on it. (sorry but 'spoiler' and 'insert code' don't seem to work)

 

public boolean onBlockActivated (World world, int x, int y, int z, EntityPlayer player,

int metadata, float a, float b, float c) {

TileEntity te = world.getBlockTileEntity(x, y, z);

if (player.getHeldItem() == null){ return super.onBlockActivated(world, x, y, z, player, metadata, a, b, c); }

else if (player.getHeldItem().getItem() instanceof ItemBlock) {

camouflageIcon = player.getHeldItem().getIconIndex();

return true;

}

else { return super.onBlockActivated(world, x, y, z, player, metadata, a, b, c); }

}

Rather than getting the icon index, how about you getIcon() ?

Because getIcon() is undefined for ItemStack. 

Know what it's not undefined for?

 

ItemStack.getItem().getIcon()

Hi

 

This post is a bit similar to what you want.

http://www.minecraftforge.net/forum/index.php/topic,14726.0.html

 

An icon is really just a string giving the name of the texture .png.  Check the icon's methods to figure out how to get it and save it to the TileEntity's NBT as a string.

 

Cheers

  TGG