001 package net.minecraft.entity.monster;
002
003 import net.minecraft.enchantment.EnchantmentHelper;
004 import net.minecraft.entity.Entity;
005 import net.minecraft.entity.EntityCreature;
006 import net.minecraft.entity.EntityLiving;
007 import net.minecraft.entity.player.EntityPlayer;
008 import net.minecraft.potion.Potion;
009 import net.minecraft.util.DamageSource;
010 import net.minecraft.util.MathHelper;
011 import net.minecraft.world.EnumSkyBlock;
012 import net.minecraft.world.World;
013
014 public abstract class EntityMob extends EntityCreature implements IMob
015 {
016 public EntityMob(World par1World)
017 {
018 super(par1World);
019 this.experienceValue = 5;
020 }
021
022 /**
023 * Called frequently so the entity can update its state every tick as required. For example, zombies and skeletons
024 * use this to react to sunlight and start to burn.
025 */
026 public void onLivingUpdate()
027 {
028 this.updateArmSwingProgress();
029 float var1 = this.getBrightness(1.0F);
030
031 if (var1 > 0.5F)
032 {
033 this.entityAge += 2;
034 }
035
036 super.onLivingUpdate();
037 }
038
039 /**
040 * Called to update the entity's position/logic.
041 */
042 public void onUpdate()
043 {
044 super.onUpdate();
045
046 if (!this.worldObj.isRemote && this.worldObj.difficultySetting == 0)
047 {
048 this.setDead();
049 }
050 }
051
052 /**
053 * Finds the closest player within 16 blocks to attack, or null if this Entity isn't interested in attacking
054 * (Animals, Spiders at day, peaceful PigZombies).
055 */
056 protected Entity findPlayerToAttack()
057 {
058 EntityPlayer var1 = this.worldObj.getClosestVulnerablePlayerToEntity(this, 16.0D);
059 return var1 != null && this.canEntityBeSeen(var1) ? var1 : null;
060 }
061
062 /**
063 * Called when the entity is attacked.
064 */
065 public boolean attackEntityFrom(DamageSource par1DamageSource, int par2)
066 {
067 if (this.func_85032_ar())
068 {
069 return false;
070 }
071 else if (super.attackEntityFrom(par1DamageSource, par2))
072 {
073 Entity var3 = par1DamageSource.getEntity();
074
075 if (this.riddenByEntity != var3 && this.ridingEntity != var3)
076 {
077 if (var3 != this)
078 {
079 this.entityToAttack = var3;
080 }
081
082 return true;
083 }
084 else
085 {
086 return true;
087 }
088 }
089 else
090 {
091 return false;
092 }
093 }
094
095 public boolean attackEntityAsMob(Entity par1Entity)
096 {
097 int var2 = this.getAttackStrength(par1Entity);
098
099 if (this.isPotionActive(Potion.damageBoost))
100 {
101 var2 += 3 << this.getActivePotionEffect(Potion.damageBoost).getAmplifier();
102 }
103
104 if (this.isPotionActive(Potion.weakness))
105 {
106 var2 -= 2 << this.getActivePotionEffect(Potion.weakness).getAmplifier();
107 }
108
109 int var3 = 0;
110
111 if (par1Entity instanceof EntityLiving)
112 {
113 var2 += EnchantmentHelper.getEnchantmentModifierLiving(this, (EntityLiving)par1Entity);
114 var3 += EnchantmentHelper.getKnockbackModifier(this, (EntityLiving)par1Entity);
115 }
116
117 boolean var4 = par1Entity.attackEntityFrom(DamageSource.causeMobDamage(this), var2);
118
119 if (var4)
120 {
121 if (var3 > 0)
122 {
123 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));
124 this.motionX *= 0.6D;
125 this.motionZ *= 0.6D;
126 }
127
128 int var5 = EnchantmentHelper.func_90036_a(this);
129
130 if (var5 > 0)
131 {
132 par1Entity.setFire(var5 * 4);
133 }
134 }
135
136 return var4;
137 }
138
139 /**
140 * Basic mob attack. Default to touch of death in EntityCreature. Overridden by each mob to define their attack.
141 */
142 protected void attackEntity(Entity par1Entity, float par2)
143 {
144 if (this.attackTime <= 0 && par2 < 2.0F && par1Entity.boundingBox.maxY > this.boundingBox.minY && par1Entity.boundingBox.minY < this.boundingBox.maxY)
145 {
146 this.attackTime = 20;
147 this.attackEntityAsMob(par1Entity);
148 }
149 }
150
151 /**
152 * Takes a coordinate in and returns a weight to determine how likely this creature will try to path to the block.
153 * Args: x, y, z
154 */
155 public float getBlockPathWeight(int par1, int par2, int par3)
156 {
157 return 0.5F - this.worldObj.getLightBrightness(par1, par2, par3);
158 }
159
160 /**
161 * Checks to make sure the light is not too bright where the mob is spawning
162 */
163 protected boolean isValidLightLevel()
164 {
165 int var1 = MathHelper.floor_double(this.posX);
166 int var2 = MathHelper.floor_double(this.boundingBox.minY);
167 int var3 = MathHelper.floor_double(this.posZ);
168
169 if (this.worldObj.getSavedLightValue(EnumSkyBlock.Sky, var1, var2, var3) > this.rand.nextInt(32))
170 {
171 return false;
172 }
173 else
174 {
175 int var4 = this.worldObj.getBlockLightValue(var1, var2, var3);
176
177 if (this.worldObj.isThundering())
178 {
179 int var5 = this.worldObj.skylightSubtracted;
180 this.worldObj.skylightSubtracted = 10;
181 var4 = this.worldObj.getBlockLightValue(var1, var2, var3);
182 this.worldObj.skylightSubtracted = var5;
183 }
184
185 return var4 <= this.rand.nextInt(8);
186 }
187 }
188
189 /**
190 * Checks if the entity's current position is a valid location to spawn this entity.
191 */
192 public boolean getCanSpawnHere()
193 {
194 return this.isValidLightLevel() && super.getCanSpawnHere();
195 }
196
197 /**
198 * Returns the amount of damage a mob should deal.
199 */
200 public int getAttackStrength(Entity par1Entity)
201 {
202 return 2;
203 }
204 }