001    package net.minecraft.src;
002    
003    public abstract class EntityMob extends EntityCreature implements IMob
004    {
005        public EntityMob(World par1World)
006        {
007            super(par1World);
008            this.experienceValue = 5;
009        }
010    
011        /**
012         * Called frequently so the entity can update its state every tick as required. For example, zombies and skeletons
013         * use this to react to sunlight and start to burn.
014         */
015        public void onLivingUpdate()
016        {
017            this.func_82168_bl();
018            float var1 = this.getBrightness(1.0F);
019    
020            if (var1 > 0.5F)
021            {
022                this.entityAge += 2;
023            }
024    
025            super.onLivingUpdate();
026        }
027    
028        /**
029         * Called to update the entity's position/logic.
030         */
031        public void onUpdate()
032        {
033            super.onUpdate();
034    
035            if (!this.worldObj.isRemote && this.worldObj.difficultySetting == 0)
036            {
037                this.setDead();
038            }
039        }
040    
041        /**
042         * Finds the closest player within 16 blocks to attack, or null if this Entity isn't interested in attacking
043         * (Animals, Spiders at day, peaceful PigZombies).
044         */
045        protected Entity findPlayerToAttack()
046        {
047            EntityPlayer var1 = this.worldObj.getClosestVulnerablePlayerToEntity(this, 16.0D);
048            return var1 != null && this.canEntityBeSeen(var1) ? var1 : null;
049        }
050    
051        /**
052         * Called when the entity is attacked.
053         */
054        public boolean attackEntityFrom(DamageSource par1DamageSource, int par2)
055        {
056            if (super.attackEntityFrom(par1DamageSource, par2))
057            {
058                Entity var3 = par1DamageSource.getEntity();
059    
060                if (this.riddenByEntity != var3 && this.ridingEntity != var3)
061                {
062                    if (var3 != this)
063                    {
064                        this.entityToAttack = var3;
065                    }
066    
067                    return true;
068                }
069                else
070                {
071                    return true;
072                }
073            }
074            else
075            {
076                return false;
077            }
078        }
079    
080        public boolean attackEntityAsMob(Entity par1Entity)
081        {
082            int var2 = this.func_82193_c(par1Entity);
083    
084            if (this.isPotionActive(Potion.damageBoost))
085            {
086                var2 += 3 << this.getActivePotionEffect(Potion.damageBoost).getAmplifier();
087            }
088    
089            if (this.isPotionActive(Potion.weakness))
090            {
091                var2 -= 2 << this.getActivePotionEffect(Potion.weakness).getAmplifier();
092            }
093    
094            int var3 = 0;
095    
096            if (par1Entity instanceof EntityLiving)
097            {
098                var2 += EnchantmentHelper.getEnchantmentModifierLiving(this, (EntityLiving)par1Entity);
099                var3 += EnchantmentHelper.getKnockbackModifier(this, (EntityLiving)par1Entity);
100            }
101    
102            boolean var4 = par1Entity.attackEntityFrom(DamageSource.causeMobDamage(this), var2);
103    
104            if (var4)
105            {
106                if (var3 > 0)
107                {
108                    par1Entity.addVelocity((double)(-MathHelper.sin(this.rotationYaw * (float)Math.PI / 180.0F) * (float)var3 * 0.5F), 0.1D, (double)(MathHelper.cos(this.rotationYaw * (float)Math.PI / 180.0F) * (float)var3 * 0.5F));
109                    this.motionX *= 0.6D;
110                    this.motionZ *= 0.6D;
111                }
112    
113                int var5 = EnchantmentHelper.getFireAspectModifier(this, (EntityLiving)par1Entity);
114    
115                if (var5 > 0)
116                {
117                    par1Entity.setFire(var5 * 4);
118                }
119            }
120    
121            return var4;
122        }
123    
124        /**
125         * Basic mob attack. Default to touch of death in EntityCreature. Overridden by each mob to define their attack.
126         */
127        protected void attackEntity(Entity par1Entity, float par2)
128        {
129            if (this.attackTime <= 0 && par2 < 2.0F && par1Entity.boundingBox.maxY > this.boundingBox.minY && par1Entity.boundingBox.minY < this.boundingBox.maxY)
130            {
131                this.attackTime = 20;
132                this.attackEntityAsMob(par1Entity);
133            }
134        }
135    
136        /**
137         * Takes a coordinate in and returns a weight to determine how likely this creature will try to path to the block.
138         * Args: x, y, z
139         */
140        public float getBlockPathWeight(int par1, int par2, int par3)
141        {
142            return 0.5F - this.worldObj.getLightBrightness(par1, par2, par3);
143        }
144    
145        /**
146         * Checks to make sure the light is not too bright where the mob is spawning
147         */
148        protected boolean isValidLightLevel()
149        {
150            int var1 = MathHelper.floor_double(this.posX);
151            int var2 = MathHelper.floor_double(this.boundingBox.minY);
152            int var3 = MathHelper.floor_double(this.posZ);
153    
154            if (this.worldObj.getSavedLightValue(EnumSkyBlock.Sky, var1, var2, var3) > this.rand.nextInt(32))
155            {
156                return false;
157            }
158            else
159            {
160                int var4 = this.worldObj.getBlockLightValue(var1, var2, var3);
161    
162                if (this.worldObj.isThundering())
163                {
164                    int var5 = this.worldObj.skylightSubtracted;
165                    this.worldObj.skylightSubtracted = 10;
166                    var4 = this.worldObj.getBlockLightValue(var1, var2, var3);
167                    this.worldObj.skylightSubtracted = var5;
168                }
169    
170                return var4 <= this.rand.nextInt(8);
171            }
172        }
173    
174        /**
175         * Checks if the entity's current position is a valid location to spawn this entity.
176         */
177        public boolean getCanSpawnHere()
178        {
179            return this.isValidLightLevel() && super.getCanSpawnHere();
180        }
181    
182        public int func_82193_c(Entity par1Entity)
183        {
184            return 2;
185        }
186    }