001 package net.minecraft.src;
002
003 import java.util.Iterator;
004 import java.util.List;
005 import java.util.Random;
006
007 public class EntityAIMate extends EntityAIBase
008 {
009 private EntityAnimal theAnimal;
010 World theWorld;
011 private EntityAnimal targetMate;
012
013 /**
014 * Delay preventing a baby from spawning immediately when two mate-able animals find each other.
015 */
016 int spawnBabyDelay = 0;
017
018 /** The speed the creature moves at during mating behavior. */
019 float moveSpeed;
020
021 public EntityAIMate(EntityAnimal par1EntityAnimal, float par2)
022 {
023 this.theAnimal = par1EntityAnimal;
024 this.theWorld = par1EntityAnimal.worldObj;
025 this.moveSpeed = par2;
026 this.setMutexBits(3);
027 }
028
029 /**
030 * Returns whether the EntityAIBase should begin execution.
031 */
032 public boolean shouldExecute()
033 {
034 if (!this.theAnimal.isInLove())
035 {
036 return false;
037 }
038 else
039 {
040 this.targetMate = this.getNearbyMate();
041 return this.targetMate != null;
042 }
043 }
044
045 /**
046 * Returns whether an in-progress EntityAIBase should continue executing
047 */
048 public boolean continueExecuting()
049 {
050 return this.targetMate.isEntityAlive() && this.targetMate.isInLove() && this.spawnBabyDelay < 60;
051 }
052
053 /**
054 * Resets the task
055 */
056 public void resetTask()
057 {
058 this.targetMate = null;
059 this.spawnBabyDelay = 0;
060 }
061
062 /**
063 * Updates the task
064 */
065 public void updateTask()
066 {
067 this.theAnimal.getLookHelper().setLookPositionWithEntity(this.targetMate, 10.0F, (float)this.theAnimal.getVerticalFaceSpeed());
068 this.theAnimal.getNavigator().tryMoveToEntityLiving(this.targetMate, this.moveSpeed);
069 ++this.spawnBabyDelay;
070
071 if (this.spawnBabyDelay == 60)
072 {
073 this.spawnBaby();
074 }
075 }
076
077 /**
078 * Loops through nearby animals and finds another animal of the same type that can be mated with. Returns the first
079 * valid mate found.
080 */
081 private EntityAnimal getNearbyMate()
082 {
083 float var1 = 8.0F;
084 List var2 = this.theWorld.getEntitiesWithinAABB(this.theAnimal.getClass(), this.theAnimal.boundingBox.expand((double)var1, (double)var1, (double)var1));
085 Iterator var3 = var2.iterator();
086 EntityAnimal var4;
087
088 do
089 {
090 if (!var3.hasNext())
091 {
092 return null;
093 }
094
095 var4 = (EntityAnimal)var3.next();
096 }
097 while (!this.theAnimal.canMateWith(var4));
098
099 return var4;
100 }
101
102 /**
103 * Spawns a baby animal of the same type.
104 */
105 private void spawnBaby()
106 {
107 EntityAnimal var1 = this.theAnimal.spawnBabyAnimal(this.targetMate);
108
109 if (var1 != null)
110 {
111 this.theAnimal.setGrowingAge(6000);
112 this.targetMate.setGrowingAge(6000);
113 this.theAnimal.resetInLove();
114 this.targetMate.resetInLove();
115 var1.setGrowingAge(-24000);
116 var1.setLocationAndAngles(this.theAnimal.posX, this.theAnimal.posY, this.theAnimal.posZ, 0.0F, 0.0F);
117 this.func_85147_a(this.theAnimal, this.targetMate, var1);
118 this.theWorld.spawnEntityInWorld(var1);
119 Random var2 = this.theAnimal.getRNG();
120
121 for (int var3 = 0; var3 < 7; ++var3)
122 {
123 double var4 = var2.nextGaussian() * 0.02D;
124 double var6 = var2.nextGaussian() * 0.02D;
125 double var8 = var2.nextGaussian() * 0.02D;
126 this.theWorld.spawnParticle("heart", this.theAnimal.posX + (double)(var2.nextFloat() * this.theAnimal.width * 2.0F) - (double)this.theAnimal.width, this.theAnimal.posY + 0.5D + (double)(var2.nextFloat() * this.theAnimal.height), this.theAnimal.posZ + (double)(var2.nextFloat() * this.theAnimal.width * 2.0F) - (double)this.theAnimal.width, var4, var6, var8);
127 }
128
129 this.theWorld.spawnEntityInWorld(new EntityXPOrb(this.theWorld, this.theAnimal.posX, this.theAnimal.posY, this.theAnimal.posZ, var2.nextInt(4) + 1));
130 }
131 }
132
133 protected void func_85147_a(EntityAnimal par1EntityAnimal, EntityAnimal par2EntityAnimal, EntityAnimal par3EntityAnimal) {}
134 }