using System;
using Blue;
using UnityEngine;

public interface IGetAngleByTwoPointUtility:IUtility
{
    double GetAngleByTwoPoint(Vector2 startPoint, Vector2 endPoint);
    double GetAngleByTwoPoint(float startPoint_X, float startPoint_Y, float endPoint_X, float ednPoint_Y);
}

public class GetAngleByTwoPointUtility : IGetAngleByTwoPointUtility
{
    /// <summary>
    /// 根据两点求角度
    /// </summary>
    /// <param name="startPoint">开始点坐标</param>
    /// <param name="endPoint">结束点坐标</param>
    /// <returns>角度</returns>
    double IGetAngleByTwoPointUtility.GetAngleByTwoPoint(Vector2 startPoint,Vector2 endPoint)
    {
        return GetAngleByTwoPoint(startPoint.x,startPoint.y,endPoint.x,endPoint.y);
    }

    /// <summary>
    /// 根据两点求角度
    /// </summary>
    /// <param name="startPoint_X">开始点X值</param>
    /// <param name="startPoint_Y">开始点Y值</param>
    /// <param name="endPoint_X">结束点X值</param>
    /// <param name="ednPoint_Y">结束点Y值</param>
    /// <returns>角度</returns>
    public double GetAngleByTwoPoint(float startPoint_X,float startPoint_Y ,float endPoint_X,float ednPoint_Y)
    {
        return Math.Atan2(ednPoint_Y - startPoint_Y, endPoint_X - startPoint_X) * (180.0 / Math.PI);
    }

}