public static Level FromFile(string fileName)
{
if (!File.Exists(fileName))
{
throw new FileNotFoundException("Could not find level file '" + fileName + "'");
}
var sLevel = new List<string>();
using (StreamReader sr = new StreamReader(fileName))
{
while (sr.Peek() >= 0)
{
sLevel.Add(sr.ReadLine());
}
}
if (0 == sLevel.Count) return null;
int width = 0;
foreach (string sLine in sLevel)
{
//find longest line
if (sLine.Length > width)
{
width = sLine.Length;
}
}
//use line count and the longest line as level dimensions
Level level = new Level(width, sLevel.Count);
int y = level.Height - 1;
foreach (string sLine in sLevel)
{
int x = 0;
//each character is a grid element
foreach (char symbol in sLine)
{
ElementType type = ElementType.Floor;
switch (symbol)
{
case '#': type = ElementType.Wall; break;
case '-': type = ElementType.Floor; break;
case '@': type = ElementType.Man; break;
case '$': type = ElementType.Box; break;
case '.': type = ElementType.Goal; break;
case '*': type = ElementType.BoaxOnGoal; break;
case '+': type = ElementType.ManOnGoal; break;
};
level.SetElement(x, y, type);
++x;
}
--y;
}
return level;
}
public static void MovePlayer(this Level level, Point oldPos, Point newPos)
{
ElementType type = level.GetElement(oldPos);
switch (type)
{
case ElementType.Man: level.SetElement(oldPos, ElementType.Floor); break;
case ElementType.ManOnGoal: level.SetElement(oldPos, ElementType.Goal); break;
default: return;
}
ElementType type2 = level.GetElement(newPos);
switch (type2)
{
case ElementType.Floor: level.SetElement(newPos, ElementType.Man); break;
case ElementType.Goal: level.SetElement(newPos, ElementType.ManOnGoal); break;
default: return;
}
}
public static Level FromString(string levelString)
{
if (string.IsNullOrWhiteSpace(levelString))
{
return(null);
}
var lines = levelString.Split(new string[] { Environment.NewLine, "\n" }, StringSplitOptions.RemoveEmptyEntries);
int longestLength = lines.Max(s => s.Length);
//use the longest line and line count as level dimensions
Level level = new Level(longestLength, lines.Length);
int y = level.Height - 1;
foreach (string sLine in lines)
{
int x = 0;
//each character is a grid element
foreach (char symbol in sLine)
{
ElementType type = ElementType.Floor;
switch (symbol)
{
case '#': type = ElementType.Wall; break;
case '-': type = ElementType.Floor; break;
case '@': type = ElementType.Man; break;
case '$': type = ElementType.Box; break;
case '.': type = ElementType.Goal; break;
case '*': type = ElementType.BoaxOnGoal; break;
case '+': type = ElementType.ManOnGoal; break;
}
;
level.SetElement(x, y, type);
++x;
}
--y;
}
return(level);
}
public static void SetElement(this Level level, Point position, ElementType type)
{
level.SetElement(position.X, position.Y, type);
}