001package net.minecraft.entity.monster;
002
003import net.minecraft.enchantment.EnchantmentHelper;
004import net.minecraft.enchantment.EnchantmentThorns;
005import net.minecraft.entity.Entity;
006import net.minecraft.entity.EntityCreature;
007import net.minecraft.entity.EntityLiving;
008import net.minecraft.entity.player.EntityPlayer;
009import net.minecraft.potion.Potion;
010import net.minecraft.util.DamageSource;
011import net.minecraft.util.MathHelper;
012import net.minecraft.world.EnumSkyBlock;
013import net.minecraft.world.World;
014
015public 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.isEntityInvulnerable())
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_92096_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}