/// <summary>
/// Default constructor.
/// </summary>
/// <param name="tileMapPath">Path to the tile map file.</param>
public Scene(string tileMapPath)
{
collisionGrid = null;
this.tileMapPath = tileMapPath;
position = Vector2.Zero;
dimensions = Dimensions2.Zero;
viewport = BaseGame.Instance.GraphicsDevice.Viewport;
positionOffset = new Vector2((viewport.Width / 2) - 16, (viewport.Height / 2) - 16);
positionMinBounds = Vector2.Zero;
positionMaxBounds = Vector2.Zero;
nodeMaxBounds = Vector2.Zero;
sceneNodeDictionary = new Dictionary <string, SceneNode>();
prevEntityPositions = new Dictionary <string, Vector2>();
}
/// <summary>
/// Creates a collision grid for the scene.
/// </summary>
/// <param name="gridDimensions">Dimensions (in cells) of the collision grid.</param>
public void CreateCollisionGrid(Dimensions2 gridDimensions)
{
Dimensions2 sceneDimensions = tileMap.Dimensions * tileMap.TileDimensions;
collisionGrid = new CollisionGrid(sceneDimensions, gridDimensions);
// Add tiles to the proper collision grid cell
foreach (Tile tile in tileMap.TileArray)
{
collisionGrid.GetCellAtPosition(tile.Position).TileList.Add(tile);
}
// Add scene nodes to the proper collision grid cell
foreach (SceneNode node in sceneNodeDictionary.Values)
{
CollisionCell cell = collisionGrid.GetCellAtPosition(node.Position);
cell.SceneNodeList.Add(node);
node.CollisionCell = cell;
node.CollisionCellsToCheck = getCellsToCheck(node);
}
}