public static void ClockTest()
{
int w = 500;
int h = 500;
FrameBuffer frameBuffer = new FrameBuffer(w, h, 0);
Vector2 a = new Vector2(250, 250);
double angle0 = 0;
double angle1 = 30;
float raio0 = 125;
float raio1 = 75;
while (true)
{
frameBuffer.Clear();
double cos = Math.Cos(NumericExtensions.ToRadians(angle0));
double sin = Math.Sin(NumericExtensions.ToRadians(angle0));
Vector2 b = new Vector2((float)(cos * raio0) + a.X, (float)(sin * raio0) + a.Y);
plotLine(a, b, frameBuffer, 255);
cos = Math.Cos(NumericExtensions.ToRadians(angle1));
sin = Math.Sin(NumericExtensions.ToRadians(angle1));
b = new Vector2((float)(cos * raio1) + a.X, (float)(sin * raio1) + a.Y);
plotLine(a, b, frameBuffer, 125);
angle0 += 1f;
angle1 += 3f;
frameBuffer.Export("clock.pgm");
Thread.Sleep(TimeSpan.FromSeconds(0.5f));
}
}
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);
}
