    001    package net.minecraft.entity.projectile;
    002
    003    import cpw.mods.fml.common.Side;
    004    import cpw.mods.fml.common.asm.SideOnly;
    005    import net.minecraft.block.Block;
    006    import net.minecraft.entity.EntityLiving;
    007    import net.minecraft.potion.Potion;
    008    import net.minecraft.potion.PotionEffect;
    009    import net.minecraft.util.DamageSource;
    010    import net.minecraft.util.MovingObjectPosition;
    011    import net.minecraft.world.Explosion;
    012    import net.minecraft.world.World;
    013
    014    public class EntityWitherSkull extends EntityFireball
    015    {
    016        public EntityWitherSkull(World par1World)
    017        {
    018            super(par1World);
    019            this.setSize(0.3125F, 0.3125F);
    020        }
    021
    022        public EntityWitherSkull(World par1World, EntityLiving par2EntityLiving, double par3, double par5, double par7)
    023        {
    024            super(par1World, par2EntityLiving, par3, par5, par7);
    025            this.setSize(0.3125F, 0.3125F);
    026        }
    027
    028        /**
    029         * Return the motion factor for this projectile. The factor is multiplied by the original motion.
    030         */
    031        protected float getMotionFactor()
    032        {
    033            return this.isInvulnerable() ? 0.73F : super.getMotionFactor();
    034        }
    035
    036        @SideOnly(Side.CLIENT)
    037        public EntityWitherSkull(World par1World, double par2, double par4, double par6, double par8, double par10, double par12)
    038        {
    039            super(par1World, par2, par4, par6, par8, par10, par12);
    040            this.setSize(0.3125F, 0.3125F);
    041        }
    042
    043        /**
    044         * Returns true if the entity is on fire. Used by render to add the fire effect on rendering.
    045         */
    046        public boolean isBurning()
    047        {
    048            return false;
    049        }
    050
    051        public float func_82146_a(Explosion par1Explosion, Block par2Block, int par3, int par4, int par5)
    052        {
    053            float var6 = super.func_82146_a(par1Explosion, par2Block, par3, par4, par5);
    054
    055            if (this.isInvulnerable() && par2Block != Block.bedrock && par2Block != Block.endPortal && par2Block != Block.endPortalFrame)
    056            {
    057                var6 = Math.min(0.8F, var6);
    058            }
    059
    060            return var6;
    061        }
    062
    063        /**
    064         * Called when this EntityFireball hits a block or entity.
    065         */
    066        protected void onImpact(MovingObjectPosition par1MovingObjectPosition)
    067        {
    068            if (!this.worldObj.isRemote)
    069            {
    070                if (par1MovingObjectPosition.entityHit != null)
    071                {
    072                    if (this.shootingEntity != null)
    073                    {
    074                        if (par1MovingObjectPosition.entityHit.attackEntityFrom(DamageSource.causeMobDamage(this.shootingEntity), 8) && !par1MovingObjectPosition.entityHit.isEntityAlive())
    075                        {
    076                            this.shootingEntity.heal(5);
    077                        }
    078                    }
    079                    else
    080                    {
    081                        par1MovingObjectPosition.entityHit.attackEntityFrom(DamageSource.magic, 5);
    082                    }
    083
    084                    if (par1MovingObjectPosition.entityHit instanceof EntityLiving)
    085                    {
    086                        byte var2 = 0;
    087
    088                        if (this.worldObj.difficultySetting > 1)
    089                        {
    090                            if (this.worldObj.difficultySetting == 2)
    091                            {
    092                                var2 = 10;
    093                            }
    094                            else if (this.worldObj.difficultySetting == 3)
    095                            {
    096                                var2 = 40;
    097                            }
    098                        }
    099
    100                        if (var2 > 0)
    101                        {
    102                            ((EntityLiving)par1MovingObjectPosition.entityHit).addPotionEffect(new PotionEffect(Potion.wither.id, 20 * var2, 1));
    103                        }
    104                    }
    105                }
    106
    107                this.worldObj.newExplosion(this, this.posX, this.posY, this.posZ, 1.0F, false, this.worldObj.getGameRules().getGameRuleBooleanValue("mobGriefing"));
    108                this.setDead();
    109            }
    110        }
    111
    112        /**
    113         * Returns true if other Entities should be prevented from moving through this Entity.
    114         */
    115        public boolean canBeCollidedWith()
    116        {
    117            return false;
    118        }
    119
    120        /**
    121         * Called when the entity is attacked.
    122         */
    123        public boolean attackEntityFrom(DamageSource par1DamageSource, int par2)
    124        {
    125            return false;
    126        }
    127
    128        protected void entityInit()
    129        {
    130            this.dataWatcher.addObject(10, Byte.valueOf((byte)0));
    131        }
    132
    133        /**
    134         * Return whether this skull comes from an invulnerable (aura) wither boss.
    135         */
    136        public boolean isInvulnerable()
    137        {
    138            return this.dataWatcher.getWatchableObjectByte(10) == 1;
    139        }
    140
    141        /**
    142         * Set whether this skull comes from an invulnerable (aura) wither boss.
    143         */
    144        public void setInvulnerable(boolean par1)
    145        {
    146            this.dataWatcher.updateObject(10, Byte.valueOf((byte)(par1 ? 1 : 0)));
    147        }
    148    }