public Pathfinder(Level level)
{
//Level = level;
Width = level.Width;
Height = level.Height;
InitializeSearchNodes(level);
}
public void NewLevel(int width, int height, int enemies)
{
level = new Level(width, height, levelNumber + 2);
level.AddEntity(player);
level.Player = player;
player.Position = new Vector2(3 * Tile.Size + (player.Width / 2) - 16, 3 * Tile.Size - (player.Height / 2) + Tile.Size / 2);
player.Bullets.Clear();
camera = new Camera(this);
camera.Focus = player;
camera.Bounds = new Rectangle(0, 0, level.Width * Tile.Size, level.Height * Tile.Size);
level.Camera = camera;
level.Initialize();
}
private void InitializeSearchNodes(Level level)
{
searchNodes = new SearchNode[Width * Height];
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
SearchNode node = new SearchNode();
node.Position = new Point(x, y);
node.Walkable = !level.GetTile(x, y).IsSolid();
if (node.Walkable)
{
node.Neighbors = new SearchNode[4];
searchNodes[x + y * Width] = node;
}
}
}
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
SearchNode node = searchNodes[x + y * Width];
if (node == null || node.Walkable == false)
{
continue;
}
Point[] neighbors = new Point[]
{
new Point(x, y - 1),
new Point(x, y + 1),
new Point(x - 1, y),
new Point(x + 1, y)
};
for (int i = 0; i < neighbors.Length; i++)
{
Point position = neighbors[i];
if (position.X < 0 || position.X >= Width || position.Y < 0 || position.Y >= Height)
{
continue;
}
SearchNode neighbor = searchNodes[position.X + position.Y * Width];
if (neighbor == null || neighbor.Walkable == false)
{
continue;
}
node.Neighbors[i] = neighbor;
}
}
}
}
