internal GamePoint[] SetMove(float distance, float angleRotate)
{
var angleRad = (angleRotate * Math.PI) / 180;
CenterPolygonAbsolute = new GamePoint(-Math.Sin(angleRad) * distance + CenterPolygonAbsolute.X
, Math.Cos(angleRad) * distance + CenterPolygonAbsolute.Y);
return(GetDrawPoints());
}
private GamePoint[] RotatePolygon()
{
GamePoint[] rotateGamePoints = new GamePoint[Points.Length];
for (int i = 0; i < Points.Length; i++)
{
rotateGamePoints[i] = RotatePoint(Points[i]);
}
return(rotateGamePoints);
}
internal GamePoint RotatePoint(GamePoint point)
{
var angleRad = (AngleRotate * Math.PI) / 180;
var x = (point.X) * Math.Cos(angleRad) - (point.Y)
* Math.Sin(angleRad);
var y = (point.X) * Math.Sin(angleRad) + (point.Y)
* Math.Cos(angleRad);
return(new GamePoint((float)x, (float)y));
}
public GamePoint[] GetDrawPoints()
{
GamePoint[] newGamePoints = new GamePoint[Points.Length];
var rotatePoints = RotatePolygon();
for (int i = 0; i < newGamePoints.Length; i++)
{
newGamePoints[i] = rotatePoints[i] * Scale + CenterPolygonAbsolute;
}
return(newGamePoints);
}
private GamePolygon(GamePoint[] gamePoints, GamePoint centerPolygon, float angleGradus, GamePoint creationGamePoint, bool offcetCenter = false)
{
if (gamePoints.Length < 3)
{
throw new ArgumentException("Полигон объекта не может иметь менее трех вершин.");
}
GamePoint[] polygonGamePoint = new GamePoint[gamePoints.Length];
for (int i = 0; i < gamePoints.Length; i++)
{
polygonGamePoint[i] = gamePoints[i] - centerPolygon;
}
Points = polygonGamePoint;
CenterPolygonAbsolute = creationGamePoint;
OffcetCenter = offcetCenter;
CenterPolygonRelative = centerPolygon;
AngleRotate = angleGradus;
SetMaxRadius(CenterPolygonRelative);
}
public float DistanceTo(GamePoint gamePoint)
{
return((float)Math.Sqrt((this.X - gamePoint.X) * (this.X - gamePoint.X) + (this.Y - gamePoint.Y) * (this.Y - gamePoint.Y)));
}
//Методы возвращают расстояние между двумя точками.
public static float Distance(GamePoint gamePointA, GamePoint gamePointB)
{
return((float)Math.Sqrt((gamePointA.X - gamePointB.X) * (gamePointA.X - gamePointB.X) + (gamePointA.Y - gamePointB.Y) * (gamePointA.Y - gamePointB.Y)));
}
public static GamePolygon GetPollygonOffcetCenter(GamePoint[] gamePoints, float angleGradus, GamePoint creationGamePoint)
{
GamePoint centerPolygon = GetOffcetCenterPolygon(gamePoints);
return(new GamePolygon(gamePoints, centerPolygon, angleGradus, creationGamePoint, true));
}
public static GamePolygon GetPolygon(GamePoint[] points, float angleRotationGradus, GamePoint creationGamePoint)
{
GamePoint centerPolygon = GetCenterPolygon(points);
return(new GamePolygon(points, centerPolygon, angleRotationGradus, creationGamePoint));
}
private void SetMaxRadius(GamePoint centerPolygon)
{
MaxRadiusObject = (float)Points.Select(n => n * Scale).Max(n => n.DistanceTo(centerPolygon));
}