public void Update(float interpolationParameter)
{
var pos = CubicHermiteSpline.CatmullRomSplineLoop(wayPoints, interpolationParameter);
movingObject.MinX = pos.X;
movingObject.MinY = pos.Y;
}
static public CubicHermiteSpline FromFile(string filename)
{
string[] data;
try
{
data = File.ReadAllLines(filename);
}
catch
{
Console.WriteLine($"ERROR! Failed to open file {filename}");
return(null);
}
CubicHermiteSpline spline = new CubicHermiteSpline();
int count = int.Parse(data[0], NumberStyles.Any);
spline.count = count;
spline.args = new double[count];
spline.values = new double[count];
spline.derivatives = new double[count];
for (int i = 0; i < count; i++)
{
string[] tokens = data[i + 1].Split(' ', StringSplitOptions.RemoveEmptyEntries);
double arg = double.Parse(tokens[1], NumberStyles.Any, CultureInfo.InvariantCulture);
double value = double.Parse(tokens[0], NumberStyles.Any, CultureInfo.InvariantCulture);
spline.args[i] = arg;
spline.values[i] = value;
}
spline.CalculateDerivatives();
return(spline);
}
public void Render(IReadOnlyList <Vector2> points, int selectedPoint, float truckPos)
{
GL.Clear(ClearBufferMask.ColorBufferBit);
GL.LoadIdentity();
GL.Ortho(-windowAspect, windowAspect, -1, 1, 0, 1);
shaderRoad.Activate();
texSand.Activate();
DrawLineStrip(points);
texSand.Deactivate();
shaderRoad.Deactivate();
GL.Color3(Color.Red);
GL.PointSize(15.0f);
DrawPoints(points);
if (-1 != selectedPoint)
{
GL.Color3(Color.Blue);
GL.PointSize(25.0f);
DrawPoint(points[selectedPoint]);
}
var pos = CubicHermiteSpline.CatmullRomSpline(points, truckPos);
GL.Color3(Color.White);
//GL.Color3(Color.Green);
//GL.PointSize(25.0f);
shaderTruck.Activate();
texTruck.Activate();
DrawTools.DrawTexturedRect(Box2DExtensions.CreateFromCenterSize(pos.X, pos.Y, 0.1f, 0.1f), Box2D.BOX01);
texTruck.Deactivate();
shaderTruck.Deactivate();
//DrawPoint(pos);
}
