ConveyorDrop.java

package blusunrize.immersiveengineering.common.blocks.metal.conveyors;

import blusunrize.immersiveengineering.api.ApiUtils;
import blusunrize.immersiveengineering.api.tool.ConveyorHandler;
import blusunrize.immersiveengineering.api.tool.ConveyorHandler.ConveyorDirection;
import blusunrize.immersiveengineering.api.tool.ConveyorHandler.IConveyorTile;
import net.minecraft.block.BlockTrapDoor;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.EnumFacing.Axis;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;

/**
 * @author BluSunrize - 20.08.2016
 */
public class ConveyorDrop extends ConveyorBasic
{
	@Override
	public void handleInsertion(TileEntity tile, EntityItem entity, EnumFacing facing, ConveyorDirection conDir, double distX, double distZ)
	{
		BlockPos posDown = tile.getPos().down();
		TileEntity inventoryTile = tile.getWorld().getTileEntity(posDown);
		boolean contact = Math.abs(facing.getAxis() == Axis.Z ? (tile.getPos().getZ() + .5 - entity.posZ) : (tile.getPos().getX() + .5 - entity.posX)) < .2;

		if(contact && inventoryTile != null && !(inventoryTile instanceof IConveyorTile))
		{
			if(!tile.getWorld().isRemote)
			{
				ItemStack stack = entity.getEntityItem();
				if(stack != null)
				{
					ItemStack ret = ApiUtils.insertStackIntoInventory(inventoryTile, stack, EnumFacing.UP);
					if(ret == null)
						entity.setDead();
					else if(ret.stackSize < stack.stackSize)
						entity.setEntityItemStack(ret);
				}
			}
		}
		else if(contact && isEmptySpace(tile.getWorld(), posDown, inventoryTile))
		{
			entity.motionX = 0;
			entity.motionZ = 0;
			entity.setPosition(tile.getPos().getX() + .5, tile.getPos().getY() - .5, tile.getPos().getZ() + .5);
			if(!(inventoryTile instanceof IConveyorTile))
				ConveyorHandler.revertMagnetSupression(entity, (IConveyorTile) tile);
		}
		else
			super.handleInsertion(tile,entity,facing,conDir,distX,distZ);
	}

	boolean isEmptySpace(World world, BlockPos pos, TileEntity tile)
	{
		if(world.isAirBlock(pos))
			return true;
		if(tile instanceof IConveyorTile)
			return true;
		IBlockState state = world.getBlockState(pos);
		if(state.getBlock() instanceof BlockTrapDoor)
			return state.getValue(BlockTrapDoor.OPEN).booleanValue();
		return false;
	}

	public static ResourceLocation texture_on = new ResourceLocation("immersiveengineering:blocks/conveyor_dropper");
	public static ResourceLocation texture_off = new ResourceLocation("immersiveengineering:blocks/conveyor_dropper_off");

	@Override
	public ResourceLocation getActiveTexture()
	{
		return texture_on;
	}

	@Override
	public ResourceLocation getInactiveTexture()
	{
		return texture_off;
	}
}