private List <Receiver> getConnections(int currentBounces, int maxBounces, ComponentPiece currentPiece, int rotation)
{
//passes in a piece and the sees it it connects to a reciever eventually.
//stores all of the recievers connected to
List <Receiver> result = new List <Receiver>();
List <LightComponent> components = this.lightGraph.getAllGraphComponents();
//default to rotation 0
Func <ComponentPiece, ComponentPiece, bool> selector = (closestPiece, checkingPiece) =>
{
//gets the smallest y value
bool isCloser = false;
if (closestPiece == null || (checkingPiece.Rect.y < closestPiece.Rect.y))
{
isCloser = true;
}
return(isCloser);
};
if (rotation == 1)
{
selector = (closestPiece, checkingPiece) =>
{
//gets the smallest x value
bool isCloser = false;
if (closestPiece == null || (checkingPiece.Rect.x < closestPiece.Rect.x))
{
isCloser = true;
}
return(isCloser);
};
}
else if (rotation == 2)
{
selector = (closestPiece, checkingPiece) =>
{
//gets the biggest y value
bool isCloser = false;
if (closestPiece == null || (checkingPiece.Rect.y > closestPiece.Rect.y))
{
isCloser = true;
}
return(isCloser);
};
}
else if (rotation == 3)
{
selector = (closestPiece, checkingPiece) =>
{
//gets the biggest x value
bool isCloser = false;
if (closestPiece == null || (checkingPiece.Rect.x > closestPiece.Rect.x))
{
isCloser = true;
}
return(isCloser);
};
}
Rect ray = getRayRect((Direction)rotation, currentPiece.Rect, new Vector2(.2f, getMaxRayLength()));
GraphComponent currentClosestComponent = null;
ComponentPiece currentClosestPiece = null;
//gets the closest piece it collides with
//goes through each component
for (int c = 0; c < components.Count; c++)
{
GraphComponent currentComponent = components[c];
List <ComponentPiece> pieces = currentComponent.ComponentPieces;
//loops though all the pieces
for (int p = 0; p < pieces.Count; p++)
{
//checks if overlaps with ray and is closer
if (ray.Overlaps(pieces[p].Rect))
{
if (selector(currentClosestPiece, pieces[p]))
{
currentClosestPiece = pieces[p];
currentClosestComponent = currentComponent;
}
}
}
}
if (currentClosestPiece != null && currentBounces < LightGraph.maxBounces)
{
if (currentClosestPiece.GetType() == typeof(Mirror))
{
//reflect off of the mirror
Direction newDirection = reflect((Direction)rotation, currentClosestComponent.Rotation, currentClosestComponent.Flipped);
//adds the result from the next beam to this list
result.AddRange(getConnections(currentBounces++, LightGraph.maxBounces, currentClosestPiece, (int)newDirection));
}
else if (currentClosestPiece.GetType() == typeof(PassingMirror))
{
//goes through the passing mirror
result.AddRange(getConnections(currentBounces++, LightGraph.maxBounces, currentClosestPiece, rotation));
//reflects off the passing mirror
Direction newDirection = reflect((Direction)rotation, currentClosestComponent.Rotation, currentClosestComponent.Flipped);
result.AddRange(getConnections(currentBounces++, LightGraph.maxBounces, currentClosestPiece, (int)newDirection));
}
else if (currentClosestPiece.GetType().IsSubclassOf(typeof(Receiver)))
{
result.Add((Receiver)currentClosestPiece);
}
}
return(result);
}
private List <Receiver> getConnections(ComponentPiece currentPiece, int rotation)
{
//gets the connections for the sender
return(this.getConnections(0, LightGraph.maxBounces, currentPiece, rotation));
}