/// <summary>
/// New raycast code; Optimized
/// </summary>
public void RayCast2()
{
//Get viewport's FOV, determine fov's start and end angles relative to the viewpoint's angles
//Interpolate between the start and end angles, casting a ray each interval
int fovDegrees = 75;
Angle2D minAng = this.mViewpoint.mAngles; minAng.Add((float)-(fovDegrees / 2));
Angle2D maxAng = this.mViewpoint.mAngles; maxAng.Add((float)(fovDegrees / 2));
//Column Buffer loop
for (int x = 0; x < mViewportBounds.Width; x++)
{
float scalar = x / mViewportBounds.Width;
Angle2D ang = new Angle2D(0) { x = minAng.x + (minAng.x - maxAng.x) * scalar, y = minAng.y + (minAng.y - maxAng.y) * scalar };
//bool geomDone = false;
Vector2 startPos = mViewpoint.mPos;
Vector2 endPos = startPos + ang.ToVector2() * 100;
Vector2 curPos = startPos;
World.base_geom_entity geom = null;
for (float sc = 0.0f; sc < 1; sc += 0.01f)
{
curPos = startPos + ((startPos - endPos) * sc);
geom = Engine.mWorld.mGeometry.Find(i => i.mBounds.intersectsRadius(curPos, 0.01f));
if (geom != null)
{
int dist = (int)(startPos.DistTo(curPos));
if (dist <= 0)
break;
int drawHeight = (int)(this.mViewportBounds.Height / dist);
Point pDrawStart = new Point(x, (this.mViewportBounds.Height / 2) - (drawHeight / 2));
Point pDrawEnd = new Point(x, (this.mViewportBounds.Height / 2) + (drawHeight / 2));
mViewportSurface.Draw(new Line(pDrawStart, pDrawEnd), Color.Red);
}
else
{
continue;
}
}
}
}
