package me.gtx.nvidia.mod.mods;

import java.util.Iterator;

import org.lwjgl.input.Keyboard;

import com.darkmagician6.eventapi.EventTarget;
import com.darkmagician6.eventapi.events.EventPacketSent;

import me.gtx.nvidia.Category;
import me.gtx.nvidia.mod.Mod;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.network.play.client.C02PacketUseEntity;
import net.minecraft.network.play.client.C03PacketPlayer;
import net.minecraft.util.MathHelper;

public class Aura extends Mod {



	EntityLivingBase target;
	double Reach;
	int delay = 0;

	public Aura() {
		super("Aura", "Aura", Keyboard.KEY_R, Category.COMBAT);
	}

	public float[] getRotations(Entity entity) {
        if (entity == null) {
            return null;
        }
        double diffX = entity.posX - mc.thePlayer.posX;
        double diffZ = entity.posZ - mc.thePlayer.posZ;
        double diffY;
        if ((entity instanceof EntityPlayer)) {
            EntityPlayer elb = (EntityPlayer) entity;
            diffY = elb.posY + (elb.getEyeHeight() - 0.4D) - (mc.thePlayer.posY + mc.thePlayer.getEyeHeight());
        } else {
            diffY = (entity.boundingBox.minY + entity.boundingBox.maxY) / 2.0D
                    - (mc.thePlayer.posY + mc.thePlayer.getEyeHeight());
        }
        double dist = MathHelper.sqrt_double(diffX * diffX + diffZ * diffZ);
        float yaw = (float) (Math.atan2(diffZ, diffX) * 180.0D / 3.141592653589793D) - 90.0F;
        float pitch = (float) -(Math.atan2(diffY, dist) * 180.0D / 3.141592653589793D);

        return new float[] { yaw, pitch };
    }

	public void Attack(EntityLivingBase e) {
		mc.thePlayer.sendQueue.addToSendQueue(new C02PacketUseEntity(e, C02PacketUseEntity.Action.ATTACK));
		mc.thePlayer.swingItem();
	}
	public static boolean isValid(EntityLivingBase e) {
		if(e.isEntityAlive() && e != mc.thePlayer && e!= null) {
			return true;
		}
		return false;
	}

	public void onUpdate() {
		if(!this.isToggled()) {
			return;
		}
		++delay;
		if(delay > 3) {
			delay = 0;
		}
		if(isValid(target) && mc.thePlayer.getDistanceToEntity(target) < Reach && delay > 1) {
			Attack(target);
		}
	}
	@EventTarget
	public void onUpdate(EventPacketSent event) {
		if(mc.thePlayer.getDistanceToEntity(target) < Reach) {
			float[] rotations = getRotations(target);
			C03PacketPlayer packet = (C03PacketPlayer) event.getPacket();
			packet.yaw = rotations[0];
			packet.pitch = rotations[1];
		}
	}

}