public NodeGrid Generate(NodeGrid nodeGrid)
{
int roomCount = Random.Range(_roomRange.x, _roomRange.y);
int attempts = 0;
// TODO: Update to latest Unity 2020 update to gain access to RectInt.Overlaps (?)
// Generate rooms
List <Rect> rooms = new List <Rect>();
do
{
// Quit after too many attempts failed
if (attempts > _maxAttempts)
{
break;
}
// Get a position and check that it's not on the edge of the grid
Vector2Int pos = nodeGrid.RandomPosition();
if (nodeGrid.IsEdge(pos))
{
continue;
}
var size = new Vector2Int(
Math.Min(Random.Range(_roomSizeRange.x, _roomSizeRange.y), nodeGrid.Width - pos.x),
Math.Min(Random.Range(_roomSizeRange.x, _roomSizeRange.y), nodeGrid.Height - pos.y)
);
var newRoom = new Rect(pos, size);
// Check that it doesn't overlap with any of the previous rooms
bool skip = rooms.Any(room => room.Overlaps(newRoom));
// If it didn't,
if (!skip)
{
rooms.Add(newRoom);
}
else
{
attempts++;
}
} while (rooms.Count < roomCount);
// Set all nodes within rooms
foreach (Rect rect in rooms)
{
nodeGrid.ClearRoom(rect);
}
return(nodeGrid);
}
