package com.turtledove.necropolisofnostalgia.server.ai;

import com.google.common.base.Predicates;
import net.minecraft.entity.EntityLiving;
import net.minecraft.entity.ai.EntityAIBase;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityCreature;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.pathfinding.Path;
import net.minecraft.util.EntitySelectors;

import net.minecraft.util.math.MathHelper;

public class Spiral_DracoChargeTargetAI extends EntityAIBase
{
    protected EntityLiving entity;
    protected Class <? extends Entity > targetEntity;
    protected Entity closestEntity;
    private Path path;

    public boolean isCharging;
    protected float maxDistanceForPlayer;
    protected final double speed;
    protected double x;
    protected double y;
    protected double z;
    protected double overshoot = 2;

    protected int charge_ticks;
    protected int turn_tick;

    public Spiral_DracoChargeTargetAI(EntityCreature entity, Class<? extends Entity> targetClass, float maxDistance, float speed)
    {
        this.isCharging = false;
        this.entity = entity;
        this.targetEntity = targetClass;
        this.maxDistanceForPlayer = maxDistance;
        this.speed = speed;
        charge_ticks = 0;
        turn_tick = 0;
        this.setMutexBits(1);
    }

    @Override
    public boolean shouldExecute()
    {
        System.out.printf("%d\n",charge_ticks);
        if (this.targetEntity == EntityPlayer.class && this.charge_ticks >=100)
        {
            this.closestEntity = this.entity.world.getClosestPlayer(this.entity.posX, this.entity.posY, this.entity.posZ, (double)this.maxDistanceForPlayer, Predicates.and(EntitySelectors.CAN_AI_TARGET, EntitySelectors.notRiding(this.entity)));
            if (this.closestEntity != null)
            {
                x = this.closestEntity.posX;
                y = this.closestEntity.posY;
                z = this.closestEntity.posZ;
                double f = (double)MathHelper.sqrt(x * x + z * z);
                double unit_x = x / f;
                double unit_z = z / f;
                x += unit_x * overshoot;
                z += unit_z * overshoot;
                this.entity.getNavigator().tryMoveToXYZ(this.x, this.y, this.z, this.speed);
            }
        }
        ++charge_ticks;
        return this.closestEntity != null;
    }
    public boolean shouldContinueExecuting()
    {
        ++charge_ticks;
        if ((int)this.entity.posX == (int)this.x && (int)this.entity.posZ == (int)this.z)
        {
            charge_ticks = 0;
            turn_tick = 0;
            return false;
        }
        else
        {
            return true;
        }
    }
    public void resetTask()
    {
        this.closestEntity = null;
    }
}