public static Track Load(string path)
{
List<string> lines = new List<string>();
using( Stream stream=File.OpenRead(path) )
{
using( StreamReader sr=new StreamReader(stream) )
{
while( sr.EndOfStream==false )
{
lines.Add(sr.ReadLine());
}
}
}
if( lines.Count>0 )
{
Track result = new Track(lines[0].Length, lines.Count);
for( int y = 0; y < lines.Count; y++ )
{
for( int x = 1; x < lines[y].Length; x++ )
{
int id = int.Parse(lines[y][x].ToString());
result.Tiles[x, y] = (TrackTile)id;
}
}
return result;
}
return null;
}
public Game(Track track)
{
Track = track;
State = GameState.CountDown;
CountDown = TimeSpan.FromSeconds(3);
Vector goal = (Vector)Track.GoalPosition;
Vector startOffset1 = default(Vector);
Vector startOffset2 = default(Vector);
float startRotation = 0f;
switch (Track.GetTileByIndex((int)goal.X, (int)goal.Y))
{
case TrackTile.GoalDown:
startOffset1 = new Vector(0.75f, 0.25f);
startOffset2 = new Vector(0.25f, 0.25f);
startRotation = 180f;
break;
case TrackTile.GoalLeft:
startOffset1 = new Vector(0.75f, 0.75f);
startOffset2 = new Vector(0.75f, 0.25f);
startRotation = -90f;
break;
case TrackTile.GoalRight:
startOffset1 = new Vector(0.25f, 0.25f);
startOffset2 = new Vector(0.25f, 0.75f);
startRotation = 90f;
break;
case TrackTile.GoalUp:
startOffset1 = new Vector(0.25f, 0.75f);
startOffset2 = new Vector(0.75f, 0.75f);
break;
}
Player1 = new Player()
{
Position = (Point)((goal + startOffset1) * Track.CELLSIZE),
Direction = startRotation
};
}
/// <summary>
/// Baut ein <see cref="Track"/> Objekt aus den gegebenen Tiles.
/// </summary>
/// <param name="tilesPerLine">Die Anzahl an Tiles pro Zeile.</param>
/// <param name="allTiles">Die Liste aller Tiles.</param>
/// <returns>Ein <see cref="Track"/> Objekt zusammengesetzt aus den Tiles.</returns>
private static Track BuildTrack(int tilesPerLine, IEnumerable<TrackTile[]> allTiles)
{
int y = 0;
var track = new Track(tilesPerLine, allTiles.Count());
foreach (var tileRow in allTiles)
{
for (var x = 0; x < tilesPerLine; x++)
{
track.Tiles[x, y] = tileRow[x];
}
y++;
}
return track;
}
public static Track LoadFromTxt(Stream stream)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
using (StreamReader sr = new StreamReader(stream, Encoding.ASCII))
{
if (sr.EndOfStream)
{
throw new FormatException("The file must not be empty.");
}
// reading the first line is outside the loop to calculate the size for the list
string line = sr.ReadLine();
int tilesPerLine = line.Length;
List<TrackTile[]> tiles = new List<TrackTile[]>((int)Math.Ceiling((float)stream.Length / line.Length));
for (int y = 0; ; y++, line = sr.ReadLine())
{
if (line.Length == 0)
{
throw new FormatException("The file must not contain empty lines.");
}
if (line.Length != tilesPerLine)
{
throw new FormatException(string.Format("Line {0} contains a deviating amount of tiles.", y + 1));
}
TrackTile[] tilesForThisLine = new TrackTile[tilesPerLine];
for (int x = 0; x < line.Length; x++)
{
string tileTypeAsString = line.Substring(x, 1);
int tileTypeAsInt;
if (!int.TryParse(tileTypeAsString, out tileTypeAsInt) || !Enum.IsDefined(typeof(TrackTile), tileTypeAsInt))
{
throw new FormatException(string.Format("Line {0} contains a not supported tile identifier {1}.", y, tileTypeAsString));
}
TrackTile tileType = (TrackTile)tileTypeAsInt;
if (tileType != default(TrackTile))
{
tilesForThisLine[x] = tileType;
}
}
tiles.Add(tilesForThisLine);
if (sr.EndOfStream)
{
break;
}
}
Track result = new Track(tilesPerLine, tiles.Count);
{
int y = 0;
foreach (TrackTile[] curTiles in tiles)
{
for (int x = 0; x < tilesPerLine; x++)
{
result.Tiles[x, y] = curTiles[x];
}
y++;
}
}
return result;
}
}
public void NewGame(Track track)
{
Game = new Game(track);
}
/// <summary>
/// Baut ein <see cref="Track"/> Objekt aus den gegebenen Tiles.
/// </summary>
/// <param name="tilesPerLine">Die Anzahl an Tiles pro Zeile.</param>
/// <param name="allTiles">Die Liste aller Tiles.</param>
/// <param name="goal">Die Position des Ziels.</param>
/// <returns>Ein <see cref="Track"/> Objekt zusammengesetzt aus den Tiles.</returns>
private static Track BuildTrack(string name, string key, int tilesPerLine, IEnumerable<TrackTile[]> allTiles, Point goal)
{
int y = 0;
var track = new Track(name, key, tilesPerLine, allTiles.Count(), goal);
foreach (var tileRow in allTiles)
{
for (var x = 0; x < tilesPerLine; x++)
{
track.Tiles[x, y] = tileRow[x];
}
y++;
}
return track;
}
