/// <summary>
/// 타원과 한 점간의 충돌 체크
/// </summary>
/// <param name="ellipse">타원</param>
/// <param name="pt">좌표</param>
/// <returns>충돌 여부</returns>
public static bool CheckEllipse(RectangleF ellipse, PointF pt)
{
EllipseCollision e = new EllipseCollision(10);
var cp = MathTool.CenterPoint(ellipse);
return(e.Collide(cp.X, cp.Y, ellipse.Width / 2F, ellipse.Height / 2F, pt.X, pt.Y, 0.1));
}
/// <summary>
/// 원과 한 점간 충돌 체크
/// </summary>
/// <param name="rt1">원</param>
/// <param name="pt">점</param>
/// <returns>충돌여부</returns>
public static bool CheckCircle(RectangleF rt1, Point pt)
{
var gap = Math.Min(rt1.Width, rt1.Height) / 2;
var v = MathTool.GetDistance(MathTool.CenterPoint(rt1), pt);
return(v < gap);
}
/// <summary>
/// 원본 색상에 투명도가 적용된 색상을 덧씌웠을 때 색상
/// </summary>
/// <param name="dest">원본 색</param>
/// <param name="src">덧씌울 색</param>
/// <param name="srcAlpha">덧씌울 색 투명도</param>
/// <returns>최종색</returns>
public static Color MixColorAlpha(Color dest, Color src, int srcAlpha)
{
var r = Convert.ToByte(MathTool.Constrain(MathTool.Map(srcAlpha, 0.0, 255.0, dest.R, src.R), 0, 255));
var g = Convert.ToByte(MathTool.Constrain(MathTool.Map(srcAlpha, 0.0, 255.0, dest.G, src.G), 0, 255));
var b = Convert.ToByte(MathTool.Constrain(MathTool.Map(srcAlpha, 0.0, 255.0, dest.B, src.B), 0, 255));
return(Color.FromArgb(r, g, b));
}
/// <summary>
/// 서로 다른 두 타원간의 충돌 체크
/// </summary>
/// <param name="ellipse1">타원1</param>
/// <param name="ellipse2">타원2</param>
/// <returns>충돌 여부</returns>
public static bool CheckEllipse(RectangleF ellipse1, RectangleF ellipse2)
{
EllipseCollision e = new EllipseCollision(10);
var cp = MathTool.CenterPoint(ellipse1);
var cpT = MathTool.CenterPoint(ellipse2);
return(e.Collide(cp.X, cp.Y, ellipse1.Width / 2F, ellipse1.Height / 2, cpT.X, cpT.Y, ellipse2.Width / 2F, ellipse2.Height / 2F));
}
/// <summary>
/// 지정한 각도가 시작각과 끝각 사이에 있는지 확인
/// </summary>
/// <param name="Angle">각도</param>
/// <param name="StartAngle">시작각</param>
/// <param name="EndAngle">끝각</param>
/// <returns>비교 결과</returns>
public static bool CompareAngle(double Angle, double StartAngle, double EndAngle)
{
bool ret = false;
var ang = MathTool.StandardAngle(Angle);
var stang = MathTool.StandardAngle(StartAngle);
var edang = MathTool.StandardAngle(EndAngle);
if (stang > edang)
{
double s1 = stang - 360, e1 = edang;
double s2 = stang, e2 = edang + 360;
ret = (s1 <= ang && ang <= e1) || (s2 <= ang && ang <= e2);
}
else
{
ret = stang <= ang && ang <= edang;
}
return(ret);
}
/// <summary>
/// 선분이 지정한 중점을 기준으로한 반경안에 드는지 충돌 체크
/// </summary>
/// <param name="p1">선분 좌표1</param>
/// <param name="p2">선분 좌표2</param>
/// <param name="Location">중점</param>
/// <param name="Dist">반경</param>
/// <returns>충돌 여부</returns>
public static bool CheckLine(PointF p1, PointF p2, PointF Location, float Dist)
{
return(Math.Abs(MathTool.GetDistance(p1, p2, Location)) < Dist);
}
