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;


    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);
		if ((foodSearch == -1 && pos.x < voxelSpace.voxels.GetLength(0) -1 && pos.z < voxelSpace.voxels.GetLength(1) -1 && voxelSpace.voxels[pos.x+1, pos.z] == voxelSpace.voxels[pos.x, pos.z+1]) || (foodSearch == 1 && pos.x > 0 && pos.z > 0 && voxelSpace.voxels[pos.x-1, pos.z] == voxelSpace.voxels[pos.x, pos.z-1]))
		{
            var random = new System.Random();
            var next = random.Next(0, 1);
			if (next == 0)
			{
				turnHorizontaly();
			}
			else
			{
				turnVerticaly();
			}
		}
		else if ((foodSearch == -1 && pos.x < voxelSpace.voxels.GetLength(0) -1 && pos.z < voxelSpace.voxels.GetLength(1) -1 && voxelSpace.voxels[pos.x+1, pos.z] > voxelSpace.voxels[pos.x, pos.z+1]) || (foodSearch == 1 && pos.x > 0 && pos.z > 0 && voxelSpace.voxels[pos.x-1, pos.z] < voxelSpace.voxels[pos.x, pos.z-1]))
		{
			turnVerticaly();
		}		
		else if ((foodSearch == -1 && pos.x < voxelSpace.voxels.GetLength(0) -1 && pos.z < voxelSpace.voxels.GetLength(1) -1 && voxelSpace.voxels[pos.x+1, pos.z] < voxelSpace.voxels[pos.x, pos.z+1]) || (foodSearch == 1 && pos.x > 0 && pos.z > 0 && voxelSpace.voxels[pos.x-1, pos.z] > voxelSpace.voxels[pos.x, pos.z-1]))
		{
			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);
    }
}