I created a custom shooter weapon for my mod,(tutorial here:http://www.minecraftforge.net/wiki/Tutorials/Basic_Shooter_Item_-_Blaster_Rifle) and everything went well

except that when I shoot at living entities like cow or spiders etc., the projectile goes through them.

 

Here is the projectile class:

 

package net.Aethoscraft.mod.entity;

 

import net.minecraft.entity.EntityLivingBase;

import net.minecraft.entity.projectile.EntityThrowable;

import net.minecraft.util.MovingObjectPosition;

import net.minecraft.world.World;

 

public class EntityMagicBolt extends EntityThrowable {

 

public static float explosionRadius = 1.0F;

 

public EntityMagicBolt(World par1World)

    {

        super(par1World);

    }

    public EntityMagicBolt(World par1World, EntityLivingBase par2EntityLivingBase)

    {

        super(par1World, par2EntityLivingBase);

    }

    public EntityMagicBolt(World par1World, double par2, double par4, double par6)

    {

        super(par1World, par2, par4, par6);

    }

    @Override

    protected void onImpact(MovingObjectPosition par1MovingObjectPosition){

    this.worldObj.createExplosion(this, this.posX, this.posY, this.posZ, (float)this.explosionRadius, true);

    this.setDead();

    }

 

    protected float getGravityVelocity()

    {

        return 0.0F;

    }

 

}

 

press F3 and  B at the same time in game. make sure the projectile's hitbox touches said entities hitbox.