/// <summary>
/// Creates a corridor.
/// </summary>
/// <param name="roomBounds">Position and dimension of the room where the corridor shall start.</param>
/// <param name="direction">The direction (right or bottom) of the corridor.</param>
/// <param name="corridor">Bounds of the corridor created.</param>
/// <returns>True if a corridor was created without any intersections.</returns>
public static bool CarveCorridor(Dungeon dungeon, Room room, Vector2 direction, Vector2 minMaxCorridorLength, Vector2 minRoomDimensions, out Corridor corridor)
{
corridor = Corridor.CreateInstance(new Rect(), direction);
if (!CanFitCorridor(dungeon, direction, room.Bounds, minMaxCorridorLength))
{
return false;
}
Vector2 corridorStart = Vector2.zero;
int tries = 10;
bool maySpawnCorridor = false;
Vector2 sideOffset = direction.YX();
for (int count = 0; !maySpawnCorridor && count < tries; count++)
{
corridorStart = room.GetRandomCell();
//move the corridor starting point outside the room
while (corridorStart.x < dungeon.Width && corridorStart.y < dungeon.Height && room.ContainsCell(corridorStart))
corridorStart += direction;
Vector2 offsetA = corridorStart + sideOffset;
Vector2 offsetB = corridorStart - sideOffset;
if (dungeon.IsWithinDungeon(offsetA))
{
if (dungeon[offsetA] != null)
{
maySpawnCorridor = false;
continue;
}
else
{
maySpawnCorridor = true;
}
}
if (dungeon.IsWithinDungeon(offsetB))
{
if (dungeon[offsetB] != null)
{
maySpawnCorridor = false;
continue;
}
else
{
maySpawnCorridor = true;
}
}
}
corridor.Position = corridorStart;
//if there would be no space for the smallest room after making a corridor with the minimum length, no use creating one
if ((direction.x != 0 && corridor.X + minRoomDimensions.x >= dungeon.Width)
|| (direction.y != 0 && corridor.Y + minRoomDimensions.y >= dungeon.Height))
return false;
//move the end of the corridor to the very edge of the room bounds (on the direction the corridor should go)
while ((direction.x != 0 && corridor.LastCell.x < room.Bounds.xMax) || (direction.y != 0 && corridor.LastCell.y < room.Bounds.yMax))
corridor.Length++;
corridor.Length += Mathf.CeilToInt(Dungeon.Random.Range(minMaxCorridorLength.x, minMaxCorridorLength.y));
if (corridor.Length == 0)
{
Debug.LogWarning("No use creating a corridor with 0 length (" + room.Bounds + ")");
return false;
}
int predefinedSize = corridor.Length;
int actualSize = 0;
for (int size = 0; size < predefinedSize; size++)
{
Vector2 cell = corridor[size];
if (!dungeon.IsWithinDungeon(cell) || dungeon[cell] != null)
{
break;
}
actualSize = size + 1;
}
corridor.Length = actualSize;
bool success = corridor.Length > 0 && corridor.Length == predefinedSize;
return success;
}
public void YX_Definition()
{
var value = new Vector2(15,44);
var expected = new Vector2(44,15);
Assert.AreEqual(expected, value.YX());
}
