/// <summary>
/// Returns whether or not a node is valid
/// A node is not valid if already in the open list
/// or if the node is an obstacle
/// </summary>
/// <returns></returns>
private bool IsTileValid(Vector2 tile)
{
// Map bounderies
if (tile.x >= MAP_LIMIT || tile.x <= -MAP_LIMIT || tile.y >= MAP_LIMIT || tile.y <= -MAP_LIMIT)
{
return(false);
}
// is node an obstacle?
if (_tileHandler.IsTileOccupied(tile))
{
return(false);
}
// Is node in innerNodelist?
foreach (Node n in _innerNodes)
{
if (tile == n.Tile)
{
return(false);
}
}
return(true);
}
/// <summary>
/// Adds obstacle from tile where mouse clicked
/// </summary>
private void AddObstacle()
{
Vector2 tile = MousePositionToTile();
// If tile occupied by obstacle already
if (_tileHandler.IsTileOccupied(tile))
{
return;
}
// If space is occupied by player og goal
if ((_tileHandler.ClosestTile(Player.transform.position) == tile) || (_tileHandler.ClosestTile(Goal.transform.position) == tile))
{
return;
}
_tileHandler.AddTile(tile, CreateObstacle(tile));
}