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Better logic for determining which convex hulls are in the range of a lightsource (separate convexhull lists for each sub)

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Regalis
2016-06-30 17:50:02 +03:00
parent 38c5251005
commit aae24b2b2c
6 changed files with 218 additions and 67 deletions
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Subsurface/Source/Utils/MathUtils.cs
+11 -9
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@@ -241,20 +241,22 @@ namespace Barotrauma
public static bool CircleIntersectsRectangle(Vector2 circlePos, float radius, Rectangle rect)
{
Vector2 circleDistance = new Vector2(Math.Abs(circlePos.X - rect.Center.X), Math.Abs(circlePos.Y -rect.Center.Y));
float xDist = Math.Abs(circlePos.X - rect.Center.X);
int halfWidth = rect.Width / 2;
if (circleDistance.X > (rect.Width / 2 + radius)) { return false; }
if (circleDistance.Y > (rect.Height / 2 + radius)) { return false; }
if (xDist > (halfWidth + radius)) { return false; }
if (xDist <= (halfWidth)) { return true; }
if (circleDistance.X <= (rect.Width / 2)) { return true; }
if (circleDistance.Y <= (rect.Height / 2)) { return true; }
float yDist = Math.Abs(circlePos.Y - rect.Center.Y);
int halfHeight = rect.Height / 2;
float distSqX = circleDistance.X - rect.Width / 2;
float distSqY = circleDistance.Y - rect.Height / 2;
if (yDist > (halfHeight + radius)) { return false; }
if (yDist <= (halfHeight)) { return true; }
float cornerDistanceSq = distSqX * distSqX + distSqY * distSqY;
float distSqX = xDist - halfWidth;
float distSqY = yDist - halfHeight;
return (cornerDistanceSq <= (radius * radius));
return (distSqX * distSqX + distSqY * distSqY <= (radius * radius));
}
/// <summary>