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Code Snippets
Colin McMillen edited this page 4 years ago
public static class Geometry {
public static bool PointInCone(
float visionRangeSq, float fovCos, Vector2 eyePos, Vector2 direction, Vector2 test) {
Vector2 delta = Vector2.Subtract(test, eyePos);
if (delta.LengthSquared() > visionRangeSq) {
return false;
}
float dot = Vector2.Dot(Vector2.Normalize(direction), Vector2.Normalize(delta));
return dot > fovCos;
}
}
// Make a 1x1 white texture:
Texture2D whiteTexture = new Texture2D(GraphicsDevice, 1, 1);
whiteTexture.SetData(new Color[] { Color.White });
// When done with it, in UnloadContent or similar:
whiteTexture.Dispose();