public RaycastingProperties(float minRealDis, float maxRealDis, float minScreenH, float maxScreenH, float horizont)
{
this.min = new Vector2(minRealDis, maxScreenH);
this.max = new Vector2(maxRealDis, minScreenH);
this.horizont = horizont;
Vector2Tuple tuple = Vector2.Reorganize(this.min, this.max);
this.convert = new Line(tuple.A, tuple.B);
}
public Vector2 RayCasting(Player player, float angle)
{
double radians = NumericExtensions.ToRadians((double)angle);
float cos = (float)Math.Cos(radians) + player.Position.X;
float sin = (float)Math.Sin(radians) + player.Position.Y;
Vector2 ray = new Vector2(cos, sin);
Vector2 signalRay = Vector2.VectorDistance(player.Position, ray);
Line playerLine = new Line(player.Position, ray);
List <Vector2> intersections = new List <Vector2>();
Vector2 finalPoint = null;
foreach (intTuple item in this.edge)
{
Vector2Tuple points = Vector2.Reorganize(this.vertex [item.A],
this.vertex [item.B]);
Line lineMap = new Line(points.A, points.B);
Vector2 intersect = Line.Intersection(playerLine, lineMap);
Vector2 signalIntersect = Vector2.VectorDistance(player.Position, intersect);
bool signalX = float.IsNegative(signalRay.X) == float.IsNegative(signalIntersect.X);
bool signalY = float.IsNegative(signalRay.Y) == float.IsNegative(signalIntersect.Y);
bool XinLimit = intersect.X >= points.A.X && intersect.X <= points.B.X;
bool YinLimit = intersect.Y >= points.A.Y && intersect.Y <= points.B.Y;
if (signalX && signalY && XinLimit && YinLimit)
{
intersections.Add(intersect);
if (finalPoint == null)
{
finalPoint = intersect;
}
else if (Vector2.Distance(intersect, player.Position) < Vector2.Distance(finalPoint, player.Position))
{
finalPoint = intersect;
}
}
}
Console.WriteLine(finalPoint);
return(finalPoint);
}
public static void plotLine(Vector2 a, Vector2 b, FrameBuffer frameBuffer, int grayScale)
{
Vector2Tuple vectors = Vector2.Reorganize(a, b);
plotLineHigh(vectors.A, vectors.B, frameBuffer, grayScale);
}
