List <Vector3Int> CreateTunnelFromRoom(Rect room)
{
int maxLength = 12;
int lengthBeforeChangingDirection = (int)(Random.value * 5) + 2;
Directions dir;
bool connected = false;
int length = 0;
int changeDirectionCounter = 0;
Vector3Int cursor = VectorOperations.GenerateRandomPositionOnBorder(room);
dir = DirectonsOperations.GetTunnelDirectionFromRoom(cursor, room);
map.structures.SetTile(cursor, null);
List <Vector3Int> tunnelTiles = new List <Vector3Int>();
while (!connected)
{
if (cursor.x > -map.sizeX / 2 + 1 && cursor.x < map.sizeX / 2 - 1 && cursor.y > -map.sizeY / 2 + 1 && cursor.y < map.sizeY / 2 - 1)
{
map.ground.SetTile(cursor, tiles.GetIndoorTile());
tunnelTiles.Add(cursor);
cursor = VectorOperations.MoveCursor(cursor, dir);
}
else
{
connected = true;
}
if (tiles.GetIndoorTiles().Contains(map.ground.GetTile(cursor)))
{
//merge into another tunnel
connected = true;
}
if (changeDirectionCounter == lengthBeforeChangingDirection)
{
//random direction change
lengthBeforeChangingDirection = (int)(Random.value * 5) + 2;
dir = DirectonsOperations.ChangeDirection(dir);
changeDirectionCounter = 0;
}
length++;
changeDirectionCounter++;
if (length == maxLength)
{
// end of tunnel
map.ground.SetTile(cursor, tiles.GetIndoorTile());
connected = true;
}
}
return(tunnelTiles);
}