    001package net.minecraft.dispenser;
    002
    003import net.minecraft.block.BlockDispenser;
    004import net.minecraft.entity.Entity;
    005import net.minecraft.entity.IProjectile;
    006import net.minecraft.item.ItemStack;
    007import net.minecraft.util.EnumFacing;
    008import net.minecraft.world.World;
    009
    010public abstract class BehaviorProjectileDispense extends BehaviorDefaultDispenseItem
    011{
    012    /**
    013     * Dispense the specified stack, play the dispense sound and spawn particles.
    014     */
    015    public ItemStack dispenseStack(IBlockSource par1IBlockSource, ItemStack par2ItemStack)
    016    {
    017        World world = par1IBlockSource.getWorld();
    018        IPosition iposition = BlockDispenser.getIPositionFromBlockSource(par1IBlockSource);
    019        EnumFacing enumfacing = BlockDispenser.getFacing(par1IBlockSource.getBlockMetadata());
    020        IProjectile iprojectile = this.getProjectileEntity(world, iposition);
    021        iprojectile.setThrowableHeading((double)enumfacing.getFrontOffsetX(), (double)((float)enumfacing.getFrontOffsetY() + 0.1F), (double)enumfacing.getFrontOffsetZ(), this.func_82500_b(), this.func_82498_a());
    022        world.spawnEntityInWorld((Entity)iprojectile);
    023        par2ItemStack.splitStack(1);
    024        return par2ItemStack;
    025    }
    026
    027    /**
    028     * Play the dispense sound from the specified block.
    029     */
    030    protected void playDispenseSound(IBlockSource par1IBlockSource)
    031    {
    032        par1IBlockSource.getWorld().playAuxSFX(1002, par1IBlockSource.getXInt(), par1IBlockSource.getYInt(), par1IBlockSource.getZInt(), 0);
    033    }
    034
    035    /**
    036     * Return the projectile entity spawned by this dispense behavior.
    037     */
    038    protected abstract IProjectile getProjectileEntity(World world, IPosition iposition);
    039
    040    protected float func_82498_a()
    041    {
    042        return 6.0F;
    043    }
    044
    045    protected float func_82500_b()
    046    {
    047        return 1.1F;
    048    }
    049}