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 (this.func_85032_ar())
057 {
058 return false;
059 }
060 else if (super.attackEntityFrom(par1DamageSource, par2))
061 {
062 Entity var3 = par1DamageSource.getEntity();
063
064 if (this.riddenByEntity != var3 && this.ridingEntity != var3)
065 {
066 if (var3 != this)
067 {
068 this.entityToAttack = var3;
069 }
070
071 return true;
072 }
073 else
074 {
075 return true;
076 }
077 }
078 else
079 {
080 return false;
081 }
082 }
083
084 public boolean attackEntityAsMob(Entity par1Entity)
085 {
086 int var2 = this.getAttackStrength(par1Entity);
087
088 if (this.isPotionActive(Potion.damageBoost))
089 {
090 var2 += 3 << this.getActivePotionEffect(Potion.damageBoost).getAmplifier();
091 }
092
093 if (this.isPotionActive(Potion.weakness))
094 {
095 var2 -= 2 << this.getActivePotionEffect(Potion.weakness).getAmplifier();
096 }
097
098 int var3 = 0;
099
100 if (par1Entity instanceof EntityLiving)
101 {
102 var2 += EnchantmentHelper.getEnchantmentModifierLiving(this, (EntityLiving)par1Entity);
103 var3 += EnchantmentHelper.getKnockbackModifier(this, (EntityLiving)par1Entity);
104 }
105
106 boolean var4 = par1Entity.attackEntityFrom(DamageSource.causeMobDamage(this), var2);
107
108 if (var4)
109 {
110 if (var3 > 0)
111 {
112 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));
113 this.motionX *= 0.6D;
114 this.motionZ *= 0.6D;
115 }
116
117 int var5 = EnchantmentHelper.func_90036_a(this);
118
119 if (var5 > 0)
120 {
121 par1Entity.setFire(var5 * 4);
122 }
123 }
124
125 return var4;
126 }
127
128 /**
129 * Basic mob attack. Default to touch of death in EntityCreature. Overridden by each mob to define their attack.
130 */
131 protected void attackEntity(Entity par1Entity, float par2)
132 {
133 if (this.attackTime <= 0 && par2 < 2.0F && par1Entity.boundingBox.maxY > this.boundingBox.minY && par1Entity.boundingBox.minY < this.boundingBox.maxY)
134 {
135 this.attackTime = 20;
136 this.attackEntityAsMob(par1Entity);
137 }
138 }
139
140 /**
141 * Takes a coordinate in and returns a weight to determine how likely this creature will try to path to the block.
142 * Args: x, y, z
143 */
144 public float getBlockPathWeight(int par1, int par2, int par3)
145 {
146 return 0.5F - this.worldObj.getLightBrightness(par1, par2, par3);
147 }
148
149 /**
150 * Checks to make sure the light is not too bright where the mob is spawning
151 */
152 protected boolean isValidLightLevel()
153 {
154 int var1 = MathHelper.floor_double(this.posX);
155 int var2 = MathHelper.floor_double(this.boundingBox.minY);
156 int var3 = MathHelper.floor_double(this.posZ);
157
158 if (this.worldObj.getSavedLightValue(EnumSkyBlock.Sky, var1, var2, var3) > this.rand.nextInt(32))
159 {
160 return false;
161 }
162 else
163 {
164 int var4 = this.worldObj.getBlockLightValue(var1, var2, var3);
165
166 if (this.worldObj.isThundering())
167 {
168 int var5 = this.worldObj.skylightSubtracted;
169 this.worldObj.skylightSubtracted = 10;
170 var4 = this.worldObj.getBlockLightValue(var1, var2, var3);
171 this.worldObj.skylightSubtracted = var5;
172 }
173
174 return var4 <= this.rand.nextInt(8);
175 }
176 }
177
178 /**
179 * Checks if the entity's current position is a valid location to spawn this entity.
180 */
181 public boolean getCanSpawnHere()
182 {
183 return this.isValidLightLevel() && super.getCanSpawnHere();
184 }
185
186 /**
187 * Returns the amount of damage a mob should deal.
188 */
189 public int getAttackStrength(Entity par1Entity)
190 {
191 return 2;
192 }
193 }