CustomNPC-Plus/src/main/java/noppes/npcs/items/ItemMusic.java

package noppes.npcs.items;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.world.World;
import noppes.npcs.CustomItems;

public class ItemMusic extends ItemNpcInterface {

    private boolean shouldRotate = false;

    public ItemMusic() {
        setCreativeTab(CustomItems.tabMisc);
    }

    public ItemStack onItemRightClick(ItemStack par1ItemStack, World par2World, EntityPlayer player) {
        if (par2World.isRemote)
            return par1ItemStack;

        int note = par2World.rand.nextInt(24);
        float var7 = (float) Math.pow(2.0D, (double) (note - 12) / 12.0D);

        String var8 = "harp";

        par2World.playSoundEffect(player.posX, player.posY, player.posZ, "note." + var8, 3.0F, var7);
        par2World.spawnParticle("note", player.posY, player.posY + 1.2D, player.posY, (double) note / 24.0D, 0.0D, 0.0D);

        return par1ItemStack;
    }

    public Item setRotated() {
        shouldRotate = true;
        return this;
    }

    public boolean shouldRotateAroundWhenRendering() {
        return shouldRotate;
    }

}