using UnityEngine;

public class DrawUtility {

    // ------------------------------------------------------------------ 
    // Desc: DrawCircle
    // ------------------------------------------------------------------ 

    // DrawCircleX
    public static void DrawCircleX(Vector3 _center, float _radius, Color _color, float _duration = 0.0f, bool _depthTets = true) {
        DrawCircle(Quaternion.Euler(0.0f, 0.0f, 90.0f), _center, _radius, _color, _duration, _depthTets);
    }

    // DrawCircleY
    public static void DrawCircleY(Vector3 _center, float _radius, Color _color, float _duration = 0.0f, bool _depthTets = true) {
        DrawCircle(Quaternion.identity, _center, _radius, _color, _duration, _depthTets);
    }

    // DrawCircleZ
    public static void DrawCircleZ(Vector3 _center, float _radius, Color _color, float _duration = 0.0f, bool _depthTets = true) {
        DrawCircle(Quaternion.Euler(90.0f, 0.0f, 0.0f), _center, _radius, _color, _duration, _depthTets);
    }

    public static void DrawTriangle(Vector3 p1, Vector3 p2, Vector3 p3, Color color) {
        Debug.DrawLine(p1, p2, color);
        Debug.DrawLine(p2, p3, color);
        Debug.DrawLine(p3, p1, color);
    }


    public static void DrawCircle(Quaternion _rot, Vector3 _center, float _radius, Color _color, float _duration = 0.0f, bool _depthTets = true) {
#if UNITY_EDITOR
        //
        float two_pi = 2.0f * Mathf.PI;
        float segments = 32.0f;
        float step = two_pi / segments;
        float theta = 0.0f;

        //
        Vector3 last = _center + _rot * (_radius * new Vector3(Mathf.Cos(theta), 0.0f, Mathf.Sin(theta)));
        theta += step;

        //
        for (int i = 1; i <= segments; ++i) {
            Vector3 cur = _center + _rot * (_radius * new Vector3(Mathf.Cos(theta), 0.0f, Mathf.Sin(theta)));
            Debug.DrawLine(last, cur, _color, _duration, _depthTets);
            last = cur;
            theta += step;
        }
#endif
    }

    // ------------------------------------------------------------------ 
    // Desc: 
    // ------------------------------------------------------------------ 

    public static void DrawBall(Vector3 _center, float _radius, Color _color, float _duration = 0.0f, bool _depthTets = true) {
        DrawCircleX(_center, _radius, _color, _duration, _depthTets);
        DrawCircleY(_center, _radius, _color, _duration, _depthTets);
        DrawCircleZ(_center, _radius, _color, _duration, _depthTets);
    }
}