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 }