using UnityEngine;
using UnityEngine.Tilemaps;

public class MapGenerator : MonoBehaviour
{
    [Header("Map Size")]
    [SerializeField] private int width = 64;
    [SerializeField] private int height = 64;

    [Header("Map Shape")]
    [SerializeField] private float shapePower = 2.4f;
    [SerializeField] private int edgeMargin = 2;

    [Header("References")]
    [SerializeField] private Tilemap groundTilemap;
    [SerializeField] private TileBase groundTile;

    [Header("Generation")]
    [SerializeField] private bool centerMap = true;

    [ContextMenu("Generate Map")]
    public void GenerateMap()
    {
        if (groundTilemap == null)
        {
            Debug.LogError("MapGenerator: Ground Tilemap не назначен.");
            return;
        }

        if (groundTile == null)
        {
            Debug.LogError("MapGenerator: Ground Tile не назначен.");
            return;
        }

        groundTilemap.ClearAllTiles();

        int startX = centerMap ? -width / 2 : 0;
        int startY = centerMap ? -height / 2 : 0;

        float centerX = (width - 1) / 2f;
        float centerY = (height - 1) / 2f;

        float radiusX = (width / 2f) - edgeMargin;
        float radiusY = (height / 2f) - edgeMargin;

        for (int x = 0; x < width; x++)
        {
            for (int y = 0; y < height; y++)
            {
                float normalizedX = (x - centerX) / radiusX;
                float normalizedY = (y - centerY) / radiusY;

                float shape =
                    Mathf.Pow(Mathf.Abs(normalizedX), shapePower) +
                    Mathf.Pow(Mathf.Abs(normalizedY), shapePower);

                if (shape <= 1f)
                {
                    Vector3Int position = new Vector3Int(
                        startX + x,
                        startY + y,
                        0
                    );

                    groundTilemap.SetTile(position, groundTile);
                }
            }
        }

        Debug.Log($"Map generated: {width}x{height}");
    }

    [ContextMenu("Clear Map")]
    public void ClearMap()
    {
        if (groundTilemap != null)
        {
            groundTilemap.ClearAllTiles();
            Debug.Log("Map cleared.");
        }
    }
}