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