I'm making fuel item that explodes when mined. It is a small explosion and works as needed, but doesn't hurt the player. How do i make it damage the player, only a half heart or something.

 

Here is how I made the explosion:

 

    public void onBlockDestroyedByPlayer(World var1, int var2, int var3, int var4, int var5)
    {
        var1.createExplosion((Entity)null, (double)var2, (double)var3, (double)var4, 1.0F);
    }

never mind, I'm retarded and forgot it was in peaceful mode, which doesn't cause damage from it.