001package net.minecraft.entity.ai;
002
003import java.util.List;
004import net.minecraft.command.IEntitySelector;
005import net.minecraft.entity.Entity;
006import net.minecraft.entity.EntityCreature;
007import net.minecraft.entity.passive.EntityTameable;
008import net.minecraft.entity.player.EntityPlayer;
009import net.minecraft.pathfinding.PathEntity;
010import net.minecraft.pathfinding.PathNavigate;
011import net.minecraft.util.Vec3;
012
013public class EntityAIAvoidEntity extends EntityAIBase
014{
015    public final IEntitySelector field_98218_a = new EntityAIAvoidEntitySelector(this);
016
017    /** The entity we are attached to */
018    private EntityCreature theEntity;
019    private float farSpeed;
020    private float nearSpeed;
021    private Entity closestLivingEntity;
022    private float distanceFromEntity;
023
024    /** The PathEntity of our entity */
025    private PathEntity entityPathEntity;
026
027    /** The PathNavigate of our entity */
028    private PathNavigate entityPathNavigate;
029
030    /** The class of the entity we should avoid */
031    private Class targetEntityClass;
032
033    public EntityAIAvoidEntity(EntityCreature par1EntityCreature, Class par2Class, float par3, float par4, float par5)
034    {
035        this.theEntity = par1EntityCreature;
036        this.targetEntityClass = par2Class;
037        this.distanceFromEntity = par3;
038        this.farSpeed = par4;
039        this.nearSpeed = par5;
040        this.entityPathNavigate = par1EntityCreature.getNavigator();
041        this.setMutexBits(1);
042    }
043
044    /**
045     * Returns whether the EntityAIBase should begin execution.
046     */
047    public boolean shouldExecute()
048    {
049        if (this.targetEntityClass == EntityPlayer.class)
050        {
051            if (this.theEntity instanceof EntityTameable && ((EntityTameable)this.theEntity).isTamed())
052            {
053                return false;
054            }
055
056            this.closestLivingEntity = this.theEntity.worldObj.getClosestPlayerToEntity(this.theEntity, (double)this.distanceFromEntity);
057
058            if (this.closestLivingEntity == null)
059            {
060                return false;
061            }
062        }
063        else
064        {
065            List list = this.theEntity.worldObj.selectEntitiesWithinAABB(this.targetEntityClass, this.theEntity.boundingBox.expand((double)this.distanceFromEntity, 3.0D, (double)this.distanceFromEntity), this.field_98218_a);
066
067            if (list.isEmpty())
068            {
069                return false;
070            }
071
072            this.closestLivingEntity = (Entity)list.get(0);
073        }
074
075        Vec3 vec3 = RandomPositionGenerator.findRandomTargetBlockAwayFrom(this.theEntity, 16, 7, this.theEntity.worldObj.getWorldVec3Pool().getVecFromPool(this.closestLivingEntity.posX, this.closestLivingEntity.posY, this.closestLivingEntity.posZ));
076
077        if (vec3 == null)
078        {
079            return false;
080        }
081        else if (this.closestLivingEntity.getDistanceSq(vec3.xCoord, vec3.yCoord, vec3.zCoord) < this.closestLivingEntity.getDistanceSqToEntity(this.theEntity))
082        {
083            return false;
084        }
085        else
086        {
087            this.entityPathEntity = this.entityPathNavigate.getPathToXYZ(vec3.xCoord, vec3.yCoord, vec3.zCoord);
088            return this.entityPathEntity == null ? false : this.entityPathEntity.isDestinationSame(vec3);
089        }
090    }
091
092    /**
093     * Returns whether an in-progress EntityAIBase should continue executing
094     */
095    public boolean continueExecuting()
096    {
097        return !this.entityPathNavigate.noPath();
098    }
099
100    /**
101     * Execute a one shot task or start executing a continuous task
102     */
103    public void startExecuting()
104    {
105        this.entityPathNavigate.setPath(this.entityPathEntity, this.farSpeed);
106    }
107
108    /**
109     * Resets the task
110     */
111    public void resetTask()
112    {
113        this.closestLivingEntity = null;
114    }
115
116    /**
117     * Updates the task
118     */
119    public void updateTask()
120    {
121        if (this.theEntity.getDistanceSqToEntity(this.closestLivingEntity) < 49.0D)
122        {
123            this.theEntity.getNavigator().setSpeed(this.nearSpeed);
124        }
125        else
126        {
127            this.theEntity.getNavigator().setSpeed(this.farSpeed);
128        }
129    }
130
131    static EntityCreature func_98217_a(EntityAIAvoidEntity par0EntityAIAvoidEntity)
132    {
133        return par0EntityAIAvoidEntity.theEntity;
134    }
135}