/// <summary>
/// Can a valuable container be placed on the stack at the given checkPosX and checkPosY positions?
/// </summary>
/// <param name="checkPosX">The X position of the stack to check, in Containers.</param>
/// <param name="checkPosY">The Y position of the stack to check, in Containers.</param>
/// <returns></returns>
private bool MayValuableContainerBePlaced(int checkPosX, int checkPosY)
{
bool frontOrBackFree = false;
bool valuableContainerFrontOrBack = false;
if (checkPosY + 1 <= Length - 1)
{
ContainerStack frontStack = containerStacks.Find(stack => stack.X == checkPosX && stack.Y == checkPosY + 1);
if (!frontStack.HasContainers)
{
frontOrBackFree = true;
}
if (frontStack.HasValuableContainer)
{
valuableContainerFrontOrBack = true;
}
}
if (!frontOrBackFree && checkPosY - 1 >= 0)
{
ContainerStack backStack = containerStacks.Find(stack => stack.X == checkPosX && stack.Y == checkPosY - 1);
if (!backStack.HasContainers)
{
frontOrBackFree = true;
}
if (backStack.HasValuableContainer)
{
valuableContainerFrontOrBack = true;
}
}
return(frontOrBackFree && !valuableContainerFrontOrBack);
}
/// <summary>
/// Places the given container, which must be normal, in an appropriate container stack and returns true. Returns false if the container could not be placed.
/// </summary>
/// <param name="container">The container to place.</param>
/// <returns></returns>
private bool PlaceNormalContainer(Container container)
{
if (container.Type != ContainerType.Normal)
{
return(false);
}
List <WeightDirectionWrapper> optimalWrappers = GetOptimalDirections();
int startPosX = GetContainerPlacementStartingPosX(optimalWrappers[0]);
int startPosY = GetNormalContainerPlacementStartingPosY(optimalWrappers[0]);
int currentPosX = startPosX;
int currentPosY = startPosY;
int directionWrapperIndex = 0;
do
{
ContainerStack selectedStack = containerStacks.Find(stack => stack.X == currentPosX && stack.Y == currentPosY);
if (selectedStack.CanContainerBePlaced(container))
{
return(selectedStack.AddContainer(container));
}
else
{
if (!MoveGivenPosition(ref currentPosX, ref currentPosY, ref directionWrapperIndex, optimalWrappers, startPosX, startPosY))
{
return(false);
}
}
} while (true);
}