PathFind.Grid FillTileMap()
{
int xSize = myGround.tiles [0].tiles.Length;
int ySize = myGround.tiles.Length;
tilesmap = new float[xSize, ySize];
for (int i = 0; i < xSize; i++)
{
for (int j = 0; j < ySize; j++)
{
tilesmap [i, j] = myGround.GetTileAt(new Vector2(i, j)).Cost;
}
}
grid = new PathFind.Grid(xSize, ySize, tilesmap);
return(grid);
}
private void Start()
{
tilesmap = new float[8, 8];
filltilesmap();
grid = new PathFind.Grid(8, 8, tilesmap);
}
// draw map from a timer every interval
private void DrawMapWhenReady_Tick(object sender, EventArgs e)
{
// create the tiles map
int width = 100;
int height = 100;
float[,] tilesmap = new float[width, height];
// create random map
System.Random _rand = new Random();
for (int i = 0; i < width; ++i)
{
for (int j = 0; j < height; ++j)
{
tilesmap[i, j] = (float)_rand.NextDouble();
}
}
// create a grid
PathFind.Grid grid = new PathFind.Grid(tilesmap);
// create source and target points
PathFind.Point _from = new PathFind.Point(1, 1);
PathFind.Point _to = new PathFind.Point(90, 90);
// get path
// path will either be a list of Points (x, y), or an empty list if no path is found.
List <PathFind.Point> path1 = PathFind.Pathfinding.FindPath(grid, _from, _to);
// for Manhattan distance
List <PathFind.Point> path2 = PathFind.Pathfinding.FindPath(grid, _from, _to, Pathfinding.DistanceType.Manhattan);
// get graphics context
Graphics g = ShowMap.CreateGraphics();
// draw map background
var tileSize = 4;
for (int i = 0; i < width; ++i)
{
for (int j = 0; j < height; ++j)
{
var colVal = (int)(tilesmap[i, j] * 255);
Brush aBrush = new SolidBrush(Color.FromArgb(colVal, colVal, colVal));
g.FillRectangle(aBrush, i * tileSize, j * tileSize, tileSize, tileSize);
}
}
// draw paths
Brush p1Brush = new SolidBrush(Color.Red);
foreach (var n in path1)
{
g.FillRectangle(p1Brush, n.x * tileSize, n.y * tileSize, tileSize, tileSize);
}
Brush p2Brush = new SolidBrush(Color.Blue);
foreach (var n in path2)
{
g.FillRectangle(p2Brush, n.x * tileSize, n.y * tileSize, tileSize, tileSize);
}
// set interval until next calculation
DrawMapWhenReady.Interval = 500;
}
