/// <summary>
/// Sets random tiles as obstacles (can't be crossed by pathfinding)
/// </summary>
void RandomObstacles()
{
int numObstacles = (int)(hexa.tiles.Length * 0.1);
for (int k = 0; k < numObstacles; k++)
{
int tileIndex = Random.Range(0, hexa.tiles.Length - 1);
hexa.SetTileColor(tileIndex, Color.black);
hexa.SetTileCanCross(tileIndex, false);
}
}
