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