public Level Parse(Texture2D mapImage)
{
Level level = new Level();
_levelScaleFactor = 4;
_imageHeight = mapImage.Height;
_imageWidth = mapImage.Width;
Color[] colorData;
colorData = new Color[_imageWidth * _imageHeight];
mapImage.GetData<Color>(colorData);
for (int y = 0; y < _imageHeight; y++)
{
for (int x = 0; x < _imageWidth; x++)
{
Color currentPixel = colorData[_imageWidth * y + x];
if (currentPixel == Color.White)
continue;
Point position = new Point(x, y);
//Wall if all are the same
if (currentPixel.R == currentPixel.G && currentPixel.G == currentPixel.B)
HandleWall(position, currentPixel, colorData, level);
else if (currentPixel == PLAYER_COLOR)
HandlePlayer(position, currentPixel, colorData, level);
else if (currentPixel == FRIENDLY_COLOR)
HandleFriendly(position, currentPixel, colorData, level);
else if (currentPixel == ENEMY_COLOR)
HandleEnemy(position, currentPixel, colorData, level);
}
}
return level;
}
private void HandleWall(Point currentPoint, Color wallColor, Color[] colorData, Level level)
{
Vertices vertices = new Vertices();
// Add each adjacent pixel of the same color as a vertice and then white it
do
{
vertices.Add(PointToPosition(currentPoint));
colorData[ToArrayIndex(currentPoint.X, currentPoint.Y)] = Color.White;
} while (GetAdjacent(currentPoint, wallColor, colorData, ref currentPoint));
if (vertices.Count < 3)
return;
Wall.WallType wallType = Wall.WallType.Inner;
if (wallColor.R % 2 == 0)
wallType = Wall.WallType.Outer;
level.AddWall(new Wall(vertices, wallType, PlayWindow));
}
private void HandlePlayer(Point currentPoint, Color dotColor, Color[] colorData, Level level)
{
Point position = GetCenterPoint(currentPoint, dotColor, colorData);
PlayerCell player = new PlayerCell(PlayWindow, PointToPosition(position));
level.SetPlayer(player);
}
private void HandleFriendly(Point currentPoint, Color dotColor, Color[] colorData, Level level)
{
Point position = GetCenterPoint(currentPoint, dotColor, colorData);
GoodCell goodCell = new GoodCell(PlayWindow, PointToPosition(position));
level.AddFriendly(goodCell);
}
private void HandleEnemy(Point currentPoint, Color dotColor, Color[] colorData, Level level)
{
Point position = GetCenterPoint(currentPoint, dotColor, colorData);
Virus virus = new Virus(PlayWindow, PointToPosition(position));
level.AddEnemy(virus);
}
private void LoadLevel(String file)
{
World.Clear();
GoodCellList.Clear();
VirusList.Clear();
_level = _levelParser.Parse(Texture2D.FromStream(Game1.graphics.GraphicsDevice, new FileStream(file, FileMode.Open)));
_wallList = _level.GetWalls();
foreach (var item in _level.GetFriendlies())
{
GoodCellList.Add((GoodCell)item);
}
foreach (var item in _level.GetEnemies())
{
VirusList.Add((Virus)item);
}
_objectList = _level.GetFriendlies();
_objectList.AddRange(_level.GetEnemies());
_player = _level.Player;
}