public bool CheckIfObjectCanBeMoved(IPlacedObject selectedObject, Vector2 position)
{
ILevelTile levelTile = GetLevelTile(position);
if (levelTile.IsTraversable())
{
return(true);
}
return(false);
}
public ISet <ILevelTile> GetConnectedNavPoints(ILevelTile tile)
{
ISet <ILevelTile> ret = new HashSet <ILevelTile>();
LevelController lvlController = LevelController.instance;
if (lvlController == null)
{
Debug.LogError("No active LevelController. Cannot provide navigation graph!");
return(ret);
}
// Orthogonal connected points
ILevelTile upper = lvlController.GetTileAtWorldPos(new Vector2(tile.Pos.x, tile.Pos.y + TILE_SIZE));
bool upperValid = upper != null && upper.IsTraversable();
if (upperValid)
{
ret.Add(upper);
}
ILevelTile right = lvlController.GetTileAtWorldPos(new Vector2(tile.Pos.x + TILE_SIZE, tile.Pos.y));
bool rightValid = right != null && right.IsTraversable();
if (rightValid)
{
ret.Add(right);
}
ILevelTile lower = lvlController.GetTileAtWorldPos(new Vector2(tile.Pos.x, tile.Pos.y - TILE_SIZE));
bool lowerValid = lower != null && lower.IsTraversable();
if (lowerValid)
{
ret.Add(lower);
}
ILevelTile left = lvlController.GetTileAtWorldPos(new Vector2(tile.Pos.x - TILE_SIZE, tile.Pos.y));
bool leftValid = left != null && left.IsTraversable();
if (leftValid)
{
ret.Add(left);
}
// Diagonal connected points
ret.UnionWith(GetDiagonalConnectedPoints(tile, lvlController, upperValid, rightValid, lowerValid, leftValid));
return(ret);
}
private ISet <ILevelTile> GetDiagonalConnectedPoints(ILevelTile tile, LevelController lvlController, bool upperValid, bool rightValid, bool lowerValid, bool leftValid)
{
ISet <ILevelTile> ret = new HashSet <ILevelTile>();
if (upperValid && rightValid)
{
ILevelTile upperRight = lvlController.GetTileAtWorldPos(new Vector2(tile.Pos.x + TILE_SIZE, tile.Pos.y + TILE_SIZE));
if (upperRight != null && upperRight.IsTraversable())
{
ret.Add(upperRight);
}
}
if (rightValid && lowerValid)
{
ILevelTile lowerRight = lvlController.GetTileAtWorldPos(new Vector2(tile.Pos.x + TILE_SIZE, tile.Pos.y - TILE_SIZE));
if (lowerRight != null && lowerRight.IsTraversable())
{
ret.Add(lowerRight);
}
}
if (upperValid && leftValid)
{
ILevelTile upperLeft = lvlController.GetTileAtWorldPos(new Vector2(tile.Pos.x - TILE_SIZE, tile.Pos.y + TILE_SIZE));
if (upperLeft != null && upperLeft.IsTraversable())
{
ret.Add(upperLeft);
}
}
if (lowerValid && leftValid)
{
ILevelTile lowerLeft = lvlController.GetTileAtWorldPos(new Vector2(tile.Pos.x - TILE_SIZE, tile.Pos.y - TILE_SIZE));
if (lowerLeft != null && lowerLeft.IsTraversable())
{
ret.Add(lowerLeft);
}
}
return(ret);
}
