using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Ant : MonoBehaviour
{
    // Start is called before the first frame update
    public bool hasFood = false;
    public sbyte foodSearch = -1; // 1 it has food, -1 it searches for food
    public VoxelSpace voxelSpace;

    private static readonly System.Random random = new System.Random();

    public void sniff()
    {
        //zadanie 2.3
        if (voxelSpace.getPheromoneAt(transform.position.x, transform.position.z) > 250)
        {
            hasFood = true;
            foodSearch = 1;
        }
        else if (voxelSpace.positionInVoxelSpace(transform.position) == new Vector3Int(0,0,0))
        {
            hasFood = false;
            foodSearch = -1;
        }
        else if (
            voxelSpace.positionInVoxelSpace(transform.position).x == voxelSpace.sizeX - 1
            || voxelSpace.positionInVoxelSpace(transform.position).z == voxelSpace.sizeY - 1)
        {
            foodSearch = 1;
        }
		var pos = voxelSpace.positionInVoxelSpace(transform.position);
        Debug.Log(pos);
        var nextX = pos.x < voxelSpace.sizeX - 1 ? voxelSpace.voxels[pos.x + 1, pos.z] : -1;
        var nextZ = pos.z < voxelSpace.sizeY - 1 ? voxelSpace.voxels[pos.x, pos.z + 1] : -1;
		var previousX = pos.x > 0 ? voxelSpace.voxels[pos.x - 1, pos.z] : -1;
		var previuosZ = pos.z > 0 ? voxelSpace.voxels[pos.x, pos.z - 1] : -1;
		if ((foodSearch == -1 && nextX  ==  nextZ) || (foodSearch == 1 && previousX == previuosZ))
		{
            var next = random.Next(0, 2);
            if (next == 0)
			{
				turnHorizontaly();
			}
			else
			{
				turnVerticaly();
			}
		}
		else if ((foodSearch == -1 && nextX > nextZ) || (foodSearch == 1 && previousX < previuosZ))
        {
            turnHorizontaly();
        }
        else if ((foodSearch == -1 && nextX < nextZ) || (foodSearch == 1 && previousX > previuosZ))
        {
            turnVerticaly();
        }
        if (hasFood)
        {
            voxelSpace.voxels[pos.x, pos.z] = (byte)(voxelSpace.voxels[pos.x, pos.z] + 40);
        }
        go();
    }

    void turnVerticaly() //      /\ \/
    {
        gameObject.transform.rotation = Quaternion.Euler(0, 90 * (foodSearch * -1.0f) - 90, 0);
    }
    void turnHorizontaly() //    <-->
    {
        gameObject.transform.rotation = Quaternion.Euler(0, 90 * (foodSearch * -1.0f), 0);
    }
    public void go()
    {
        gameObject.transform.position += gameObject.transform.forward * (1.0f / voxelSpace.animationFrames);
    }
}