package li.cil.oc.api.prefab;
import net.minecraft.block.Block;
import net.minecraft.item.ItemBlock;
import net.minecraft.item.ItemStack;
import net.minecraft.world.World;
import net.minecraftforge.oredict.OreDictionary;
/**
* If you wish to create a block component for a third-party block, i.e. a block
* for which you do not control the tile entity, such as vanilla blocks, you
* will need a block driver.
* <p/>
* This prefab allows creating a driver that works for a specified list of item
* stacks (to support different blocks with the same id but different metadata
* values).
* <p/>
* You still have to provide the implementation for creating its environment, if
* any.
*
* @see li.cil.oc.api.network.ManagedEnvironment
*/
@SuppressWarnings("UnusedDeclaration")
public abstract class DriverBlock implements li.cil.oc.api.driver.Block {
protected final ItemStack[] blocks;
protected DriverBlock(final ItemStack... blocks) {
this.blocks = blocks.clone();
}
@Override
public boolean worksWith(final World world, final int x, final int y, final int z) {
return worksWith(world.getBlock(x, y, z), world.getBlockMetadata(x, y, z));
}
protected boolean worksWith(final Block referenceBlock, final int referenceMetadata) {
for (ItemStack stack : blocks) {
if (stack != null && stack.getItem() instanceof ItemBlock) {
final ItemBlock item = (ItemBlock) stack.getItem();
final Block supportedBlock = item.field_150939_a;
final int supportedMetadata = item.getMetadata(stack.getItemDamage());
if (referenceBlock == supportedBlock && (referenceMetadata == supportedMetadata || stack.getItemDamage() == OreDictionary.WILDCARD_VALUE)) {
return true;
}
}
}
return false;
}
}