    001    package net.minecraft.entity.monster;
    002
    003    import net.minecraft.enchantment.EnchantmentHelper;
    004    import net.minecraft.enchantment.EnchantmentThorns;
    005    import net.minecraft.entity.Entity;
    006    import net.minecraft.entity.EntityCreature;
    007    import net.minecraft.entity.EntityLiving;
    008    import net.minecraft.entity.player.EntityPlayer;
    009    import net.minecraft.potion.Potion;
    010    import net.minecraft.util.DamageSource;
    011    import net.minecraft.util.MathHelper;
    012    import net.minecraft.world.EnumSkyBlock;
    013    import net.minecraft.world.World;
    014
    015    public abstract class EntityMob extends EntityCreature implements IMob
    016    {
    017        public EntityMob(World par1World)
    018        {
    019            super(par1World);
    020            this.experienceValue = 5;
    021        }
    022
    023        /**
    024         * Called frequently so the entity can update its state every tick as required. For example, zombies and skeletons
    025         * use this to react to sunlight and start to burn.
    026         */
    027        public void onLivingUpdate()
    028        {
    029            this.updateArmSwingProgress();
    030            float var1 = this.getBrightness(1.0F);
    031
    032            if (var1 > 0.5F)
    033            {
    034                this.entityAge += 2;
    035            }
    036
    037            super.onLivingUpdate();
    038        }
    039
    040        /**
    041         * Called to update the entity's position/logic.
    042         */
    043        public void onUpdate()
    044        {
    045            super.onUpdate();
    046
    047            if (!this.worldObj.isRemote && this.worldObj.difficultySetting == 0)
    048            {
    049                this.setDead();
    050            }
    051        }
    052
    053        /**
    054         * Finds the closest player within 16 blocks to attack, or null if this Entity isn't interested in attacking
    055         * (Animals, Spiders at day, peaceful PigZombies).
    056         */
    057        protected Entity findPlayerToAttack()
    058        {
    059            EntityPlayer var1 = this.worldObj.getClosestVulnerablePlayerToEntity(this, 16.0D);
    060            return var1 != null && this.canEntityBeSeen(var1) ? var1 : null;
    061        }
    062
    063        /**
    064         * Called when the entity is attacked.
    065         */
    066        public boolean attackEntityFrom(DamageSource par1DamageSource, int par2)
    067        {
    068            if (this.func_85032_ar())
    069            {
    070                return false;
    071            }
    072            else if (super.attackEntityFrom(par1DamageSource, par2))
    073            {
    074                Entity var3 = par1DamageSource.getEntity();
    075
    076                if (this.riddenByEntity != var3 && this.ridingEntity != var3)
    077                {
    078                    if (var3 != this)
    079                    {
    080                        this.entityToAttack = var3;
    081                    }
    082
    083                    return true;
    084                }
    085                else
    086                {
    087                    return true;
    088                }
    089            }
    090            else
    091            {
    092                return false;
    093            }
    094        }
    095
    096        public boolean attackEntityAsMob(Entity par1Entity)
    097        {
    098            int var2 = this.getAttackStrength(par1Entity);
    099
    100            if (this.isPotionActive(Potion.damageBoost))
    101            {
    102                var2 += 3 << this.getActivePotionEffect(Potion.damageBoost).getAmplifier();
    103            }
    104
    105            if (this.isPotionActive(Potion.weakness))
    106            {
    107                var2 -= 2 << this.getActivePotionEffect(Potion.weakness).getAmplifier();
    108            }
    109
    110            int var3 = 0;
    111
    112            if (par1Entity instanceof EntityLiving)
    113            {
    114                var2 += EnchantmentHelper.getEnchantmentModifierLiving(this, (EntityLiving)par1Entity);
    115                var3 += EnchantmentHelper.getKnockbackModifier(this, (EntityLiving)par1Entity);
    116            }
    117
    118            boolean var4 = par1Entity.attackEntityFrom(DamageSource.causeMobDamage(this), var2);
    119
    120            if (var4)
    121            {
    122                if (var3 > 0)
    123                {
    124                    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));
    125                    this.motionX *= 0.6D;
    126                    this.motionZ *= 0.6D;
    127                }
    128
    129                int var5 = EnchantmentHelper.getFireAspectModifier(this);
    130
    131                if (var5 > 0)
    132                {
    133                    par1Entity.setFire(var5 * 4);
    134                }
    135
    136                if (par1Entity instanceof EntityLiving)
    137                {
    138                    EnchantmentThorns.func_92044_a(this, (EntityLiving)par1Entity, this.rand);
    139                }
    140            }
    141
    142            return var4;
    143        }
    144
    145        /**
    146         * Basic mob attack. Default to touch of death in EntityCreature. Overridden by each mob to define their attack.
    147         */
    148        protected void attackEntity(Entity par1Entity, float par2)
    149        {
    150            if (this.attackTime <= 0 && par2 < 2.0F && par1Entity.boundingBox.maxY > this.boundingBox.minY && par1Entity.boundingBox.minY < this.boundingBox.maxY)
    151            {
    152                this.attackTime = 20;
    153                this.attackEntityAsMob(par1Entity);
    154            }
    155        }
    156
    157        /**
    158         * Takes a coordinate in and returns a weight to determine how likely this creature will try to path to the block.
    159         * Args: x, y, z
    160         */
    161        public float getBlockPathWeight(int par1, int par2, int par3)
    162        {
    163            return 0.5F - this.worldObj.getLightBrightness(par1, par2, par3);
    164        }
    165
    166        /**
    167         * Checks to make sure the light is not too bright where the mob is spawning
    168         */
    169        protected boolean isValidLightLevel()
    170        {
    171            int var1 = MathHelper.floor_double(this.posX);
    172            int var2 = MathHelper.floor_double(this.boundingBox.minY);
    173            int var3 = MathHelper.floor_double(this.posZ);
    174
    175            if (this.worldObj.getSavedLightValue(EnumSkyBlock.Sky, var1, var2, var3) > this.rand.nextInt(32))
    176            {
    177                return false;
    178            }
    179            else
    180            {
    181                int var4 = this.worldObj.getBlockLightValue(var1, var2, var3);
    182
    183                if (this.worldObj.isThundering())
    184                {
    185                    int var5 = this.worldObj.skylightSubtracted;
    186                    this.worldObj.skylightSubtracted = 10;
    187                    var4 = this.worldObj.getBlockLightValue(var1, var2, var3);
    188                    this.worldObj.skylightSubtracted = var5;
    189                }
    190
    191                return var4 <= this.rand.nextInt(8);
    192            }
    193        }
    194
    195        /**
    196         * Checks if the entity's current position is a valid location to spawn this entity.
    197         */
    198        public boolean getCanSpawnHere()
    199        {
    200            return this.isValidLightLevel() && super.getCanSpawnHere();
    201        }
    202
    203        /**
    204         * Returns the amount of damage a mob should deal.
    205         */
    206        public int getAttackStrength(Entity par1Entity)
    207        {
    208            return 2;
    209        }
    210    }