001package net.minecraft.entity.ai;
002
003import net.minecraft.entity.EntityLiving;
004import net.minecraft.util.MathHelper;
005
006public class EntityAILeapAtTarget extends EntityAIBase
007{
008    /** The entity that is leaping. */
009    EntityLiving leaper;
010
011    /** The entity that the leaper is leaping towards. */
012    EntityLiving leapTarget;
013
014    /** The entity's motionY after leaping. */
015    float leapMotionY;
016
017    public EntityAILeapAtTarget(EntityLiving par1EntityLiving, float par2)
018    {
019        this.leaper = par1EntityLiving;
020        this.leapMotionY = par2;
021        this.setMutexBits(5);
022    }
023
024    /**
025     * Returns whether the EntityAIBase should begin execution.
026     */
027    public boolean shouldExecute()
028    {
029        this.leapTarget = this.leaper.getAttackTarget();
030
031        if (this.leapTarget == null)
032        {
033            return false;
034        }
035        else
036        {
037            double var1 = this.leaper.getDistanceSqToEntity(this.leapTarget);
038            return var1 >= 4.0D && var1 <= 16.0D ? (!this.leaper.onGround ? false : this.leaper.getRNG().nextInt(5) == 0) : false;
039        }
040    }
041
042    /**
043     * Returns whether an in-progress EntityAIBase should continue executing
044     */
045    public boolean continueExecuting()
046    {
047        return !this.leaper.onGround;
048    }
049
050    /**
051     * Execute a one shot task or start executing a continuous task
052     */
053    public void startExecuting()
054    {
055        double var1 = this.leapTarget.posX - this.leaper.posX;
056        double var3 = this.leapTarget.posZ - this.leaper.posZ;
057        float var5 = MathHelper.sqrt_double(var1 * var1 + var3 * var3);
058        this.leaper.motionX += var1 / (double)var5 * 0.5D * 0.800000011920929D + this.leaper.motionX * 0.20000000298023224D;
059        this.leaper.motionZ += var3 / (double)var5 * 0.5D * 0.800000011920929D + this.leaper.motionZ * 0.20000000298023224D;
060        this.leaper.motionY = (double)this.leapMotionY;
061    }
062}