ItemArmorStand.java

package net.glowstone.block.itemtype;

import net.glowstone.block.GlowBlock;
import net.glowstone.block.ItemTable;
import net.glowstone.block.blocktype.BlockType;
import net.glowstone.entity.GlowPlayer;
import net.glowstone.entity.objects.GlowArmorStand;
import org.bukkit.GameMode;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.block.BlockFace;
import org.bukkit.inventory.ItemStack;
import org.bukkit.util.Vector;

public class ItemArmorStand extends ItemType {

    @Override
    public void rightClickBlock(GlowPlayer player, GlowBlock target, BlockFace face, ItemStack holding, Vector clickedLoc) {
        BlockType type = ItemTable.instance().getBlock(target.getType());

        GlowBlock newTarget = type.canAbsorb(target, face, holding) ? target : target.getRelative(face);
        type = ItemTable.instance().getBlock(newTarget.getType());

        GlowBlock upper = newTarget.getRelative(BlockFace.UP);
        BlockType up = ItemTable.instance().getBlock(upper.getType());

        Location loc = newTarget.getLocation().add(0.5, 0, 0.5);
        if ((newTarget.isEmpty() || type == null || type.canAbsorb(target, face, holding))
                && (upper.isEmpty() || up == null || up.canAbsorb(target, face, holding))
                && loc.getWorld().getNearbyEntities(loc.clone().add(0, 0.5, 0), 0.5, 0.5, 0.5).isEmpty()
                && loc.getWorld().getNearbyEntities(loc.clone().add(0, 1.5, 0), 0.5, 0.5, 0.5).isEmpty()) {
            newTarget.setType(Material.AIR);
            upper.setType(Material.AIR);
            float yaw = player.getLocation().getYaw();
            float finalYaw = Math.round(yaw / 22.5f / 2) * 45;
            loc.setYaw(finalYaw - 180);
            new GlowArmorStand(loc);
            if (player.getGameMode() != GameMode.CREATIVE) {
                holding.setAmount(holding.getAmount() - 1);
            }
        }
    }
}