public void Update()
{
// Checks if there is scrolling.
int scrollWheel = Mouse.GetState().ScrollWheelValue;
Rectangle mouseRectangle = InputHelper.MouseRectangle;
if (_levelCount > 5)
{
if (mouseRectangle.Intersects(_scissorRectangle))
{
if (_lastScrollWheel != scrollWheel)
{
foreach (LevelInfo l in _levelInfos)
{
l.VelocityY = (scrollWheel - _lastScrollWheel) / 5;
}
}
}
_lastScrollWheel = scrollWheel;
float velocityY = 0;
// If first element is below its starting point, make them all go back, but only if the user is not making them go back already.
if (_levelInfos[0].GetY() > _startingY && _levelInfos[0].VelocityY > -1)
velocityY = -1f;
// If last element is above bottom of box, make them go back, but only if the user is not making them go back already.
if (_levelInfos[_levelCount - 1].GetY() < _scissorRectangle.Y + _scissorRectangle.Height - _levelInfos[0].GetHeight() - CalcHelper.ApplyHeightRatio(3) && _levelInfos[0].VelocityY < 1)
velocityY = 1f;
if (velocityY != 0)
foreach (LevelInfo l in _levelInfos)
{
l.VelocityY = velocityY;
}
}
// Makes the level infos scroll.
foreach (LevelInfo l in _levelInfos)
{
l.Update();
}
// Check to see if a level info is being selected.
if (InputHelper.IsLeftMousePressed() && InputHelper.MouseRectangle.Intersects(_scissorRectangle))
{
foreach (LevelInfo level in _levelInfos)
{
if (level.IsBeingClickedOn())
{
_selectedLevelIndex = _levelInfos.IndexOf(level);
break;
}
}
}
if (_selectedLevelIndex > -1 && _selectedLevelIndex < _levelCount)
_selectedLevel = _levelInfos[_selectedLevelIndex];
else _selectedLevel = null;
// Update buttons.
foreach (FunctionButton b in _buttons)
{
b.Update(_functionButtonContainer);
}
// Make the selected level know about it.
foreach (LevelInfo level in _levelInfos)
{
if (level == _selectedLevel)
{
level.IsSelected = true;
}
else
{
level.IsSelected = false;
}
}
}
/// <summary>
/// Checks the Level directory and load all levels.
/// </summary>
public void LoadLevels()
{
// Retrieves the information of the levels.
List<string> filePaths = DataFolder.GetLevelPaths();
List<string> fileNames = DataFolder.GetLevelNames();
List<DateTime> fileModifiedDates = DataFolder.GetLevelLastModifiedDates();
// Stores all this inforamtion into separate LevelInfo classes.
_levelCount = filePaths.Count;
_levelInfos = new List<LevelInfo>();
for (int i = 0; i < _levelCount; i++)
{
LevelInfo lev = new LevelInfo(fileNames[i], filePaths[i], fileModifiedDates[i]);
_levelInfos.Add(lev);
}
// Arranges the levels in an alphabetical list and sets their position.
_startingY = _scissorRectangle.Y + CalcHelper.ApplyHeightRatio(3);
for (int i = 0; i < _levelCount; i++)
{
_levelInfos[i].SetPosition(_startingY, i);
}
}
