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