    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.updateArmSwingProgress();
    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.getAttackStrength(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        /**
    183         * Returns the amount of damage a mob should deal.
    184         */
    185        public int getAttackStrength(Entity par1Entity)
    186        {
    187            return 2;
    188        }
    189    }