public Tile(char typeChar)
{
gScore = 0;
hScore = 0;
fScore = 0;
parentTile = null;
graphics = new GraphicsDevice();
if (typeChar == '0')
{
type = "grass";
texture = Texture2DFromFile(graphics, "Content/grass.png");
isWalkable = true;
}
else if (typeChar == '1')
{
type = "water";
texture = Texture2DFromFile(graphics, "Content/water.png");
isWalkable = false;
}
else if (typeChar == '2')
{
type = "bridge";
texture = Texture2DFromFile(graphics, "Content/bridge.png");
isWalkable = true;
}
else if (typeChar == '3')
{
type = "rock";
texture = Texture2DFromFile(graphics, "Content/rock.png");
isWalkable = false;
}
else if (typeChar == '4')
{
type = "select";
texture = Texture2DFromFile(graphics, "Content/grass2.png");
isWalkable = true;
}
height = texture.Height;
width = texture.Width;
}
public Map(String fileName)
{
name = fileName;
openList = new List<Tile>();
closedList = new List<Tile>();
isDrawn = false;
string[] tiles = File.ReadAllLines(fileName);
width = tiles[0].Length;
height = tiles.Length;
mapTiles = new Tile[height, width];
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
mapTiles[y, x] = new Tile(tiles[y][x]);
mapTiles[y, x].xPosition = x;
mapTiles[y, x].yPosition = y;
mapTiles[y, x].fScore = 0;
}
}
//pathList = new List<Tile>();
}
//////////////////////////////////////////////////
// PATHFINDING://////////////////////////////////
/////////////////////////////////////////////////
public List<Tile> GetPath(Vector2 startPoint, Vector2 endPoint, List<Tile> newCollisionList)
{
// Clear tile scores
foreach (Tile myTile in mapTiles)
{
myTile.parentTile = null;
myTile.fScore = 0;
myTile.gScore = 0;
myTile.hScore = 0;
}
// Set lists:
openList.Clear();
closedList.Clear();
collisionList = newCollisionList;
List<Tile> pathList = new List<Tile>();
// Get starting and ending nodes:
startTile = GetTile(startPoint);
endTile = GetTile(endPoint);
if (endTile == null|| endTile.isWalkable == false || closedList.Contains(endTile) == true)
{
return pathList;
}
openList.Add(startTile);
while(closedList.Contains(endTile)==false && openList.Count != 0)
{
//System.Console.WriteLine(i++);
currentTile = FindLowestScore();
if (currentTile == endTile)
{
break;
}
openList.Remove(currentTile);
closedList.Add(currentTile);
int x = currentTile.xPosition;
int y = currentTile.yPosition;
// Check all adjacent tiles to see if open:
CheckNode(x - 1, y, x, y);
CheckNode(x, y - 1, x, y);
CheckNode(x + 1, y, x, y);
CheckNode(x, y + 1, x, y);
CheckNode(x + 1, y + 1, x, y);
CheckNode(x + 1, y - 1, x, y);
CheckNode(x - 1, y + 1, x, y);
CheckNode(x - 1, y - 1, x, y);
}
while (currentTile.parentTile != null)
{
//System.Console.WriteLine(currentTile.xPosition + ", " + currentTile.yPosition);
pathList.Add(currentTile);
//Tile temp = currentTile.parentTile;
//currentTile.parentTile = null;
currentTile = currentTile.parentTile;
if(pathList.Count > 50)
{
System.Console.WriteLine("break");
break;
}
}
pathList.Reverse();
return pathList;
}