private void TryToMovePlayer(float dx, float dy)
{
ILogicalPlayer tempPlayer = Player.CreateClone();
bool movePlayer = true;
Vector2 delta = new Vector2(dx, dy);
tempPlayer.Position += delta;
if (Util.HasIntersection(tempPlayer, CurrentRoom.GetNonReflectingBounds()))
{
movePlayer = false;
}
if (Util.HasIntersection(tempPlayer, CurrentRoom.GetReflectingBounds()))
{
movePlayer = false;
}
if (Util.HasIntersection(tempPlayer, CurrentRoom.GetLightBounds()) && !_godMode)
{
movePlayer = false;
}
if (movePlayer)
{
Player.Position += delta;
}
}
private void CalculateLightRay(ILogicalLightRay lightRay)
{
Line currentRay = lightRay.GetLastRay();
Intersection closestNonReflectingIntersection = Util.GetClosestIntersection(currentRay, CurrentRoom.GetNonReflectingBounds());
var mirrorIntersections = new List <Tuple <Intersection, ILogicalMirror> >();
foreach (ILogicalMirror mirror in Mirrors)
{
Intersection mirrorIntersection = Util.GetIntersection(currentRay, mirror.GetMirrorLine());
if (mirrorIntersection != null)
{
mirrorIntersections.Add(new Tuple <Intersection, ILogicalMirror>(mirrorIntersection, mirror));
}
}
bool reflect = false;
Tuple <Intersection, ILogicalMirror> closestReflectingIntersection = null;
if (mirrorIntersections.Count > 0)
{
closestReflectingIntersection = mirrorIntersections[0];
foreach (var mirrorIntersection in mirrorIntersections)
{
if (mirrorIntersection.Item1.RelativeDistance < closestReflectingIntersection.Item1.RelativeDistance)
{
closestReflectingIntersection = mirrorIntersection;
}
}
reflect = closestReflectingIntersection.Item1.RelativeDistance < closestNonReflectingIntersection.RelativeDistance;
}
if (reflect)
{
Vector2 intersectionPoint = closestReflectingIntersection.Item1.Point;
ILogicalMirror mirror = closestReflectingIntersection.Item2;
Vector2 lightDirection = currentRay.GetDirectionVector();
lightDirection.Normalize();
Vector2 normal = mirror.GetMirrorNormal1();
Vector2 newDirection = lightDirection - 2 * (Vector2.Dot(normal, lightDirection)) * normal;
Vector2 point = new Vector2(intersectionPoint.X, intersectionPoint.Y) + newDirection * 0.0001f;
lightRay.AddNewRay(point, newDirection);
CalculateLightRay(lightRay);
}
else
{
if (closestNonReflectingIntersection != null)
{
lightRay.FinishRays(closestNonReflectingIntersection.Point);
}
}
}