/// <summary>
/// Places tiles down at rooms that are children of roomParent, walls that are children of wallParent, and stairs at the
/// position of stairsTrans. Also randomly places dinosaur bones in the rooms.
/// </summary>
/// <param name="roomParent">The parent of all the rooms (position and size)</param>
/// <param name="wallParent">The parent of all the walls (position)</param>
/// <param name="stairsTrans">Transform of the stairs (position)</param>
/// <returns>Returns the newly created Tilemap</returns>
public Tilemap SpawnTileMap(Transform roomParent, Transform wallParent, Transform stairsTrans)
{
// Initialize the list of potential positions to spawn the one-tiled decor
List <Vector2Int> oneTiledDecor = new List <Vector2Int>();
// Initialize the list of potential position to spawn the two-tiled decor
List <Vector2Int> twoTiledDecor = new List <Vector2Int>();
// Create the tilemap
GameObject tileMapObj = Instantiate(_tileMapPrefab, new Vector3(-0.5f, -0.5f, 0), Quaternion.identity);
tileMapObj.name = "Grid";
_tileMapRef = tileMapObj.transform.GetChild(0).GetComponent <Tilemap>();
if (_tileMapRef == null)
{
Debug.Log("There is no Tilemap attached to the child of " + tileMapObj.name);
}
// Clear any tiles on the map
_tileMapRef.ClearAllTiles();
// Add floor tiles to the rooms
// Iterate over each room
foreach (Transform curRoom in roomParent)
{
Vector2Int topLeft = new Vector2Int(Mathf.RoundToInt(curRoom.position.x - (curRoom.localScale.x - 1) / 2f),
Mathf.RoundToInt(curRoom.position.y + (curRoom.localScale.y - 1) / 2f));
int amRows = Mathf.RoundToInt(curRoom.localScale.y);
int amCols = Mathf.RoundToInt(curRoom.localScale.x);
// Iterate over the rows of the room
for (int curRow = 0; curRow < amRows; ++curRow)
{
// Iterate over the columns of the room
for (int curCol = 0; curCol < amCols; ++curCol)
{
// Choose a random floor tile
int randomIndex = Random.Range(0, _tileSet.SingleFloorTilesLength());
// Calculate the current location
Vector2Int curLocation = topLeft + new Vector2Int(curCol, -curRow);
// Give a chance for this tile to be convered in single-tiled decor
// Only if there are any single-tiled decorations
if (_tileSet.SingleTiledDecorationTilesLength() > 0 &&
Random.Range(0, _singleTileDecorationChance) == 0)
{
oneTiledDecor.Add(curLocation);
}
// Give a chance for this tile to be covered in a two-tiled decor
// Only if there are any double-tiled decorations
else if (_tileSet.TwoTiledDecorationTilesLength() > 0 &&
Random.Range(0, _twoTileDecorationChance) == 0)
{
twoTiledDecor.Add(curLocation);
}
// Add a single room tile at the current location
AddTile(curLocation, _tileSet.GetSingleFloorTile(randomIndex));
}
}
}
// Add walls
// Iterate over the walls
foreach (Transform curWall in wallParent)
{
// The type of wall the current wall is
// If (-1, 0) - wall is left; (0, -1) - wall is close
// (1, 0) - wall is right; (0, 1) - wall is far
// (-1, -1) - wall is closeLeftOuterCorner; (1, -1) - wall is closeRightOuterCorner
// (-1, 1) - wall is farLeftOuterCorner; (1, 1) - wall is farRightOuterCorner
Vector2Int curWallTypeVect = Vector2Int.zero;
Vector2Int innerWallTypeVect = Vector2Int.zero;
// Determine what time of tile this is by looking at its neighbors
BoundsInt aroundBounds = new BoundsInt(-1, -1, 0, 3, 3, 1);
foreach (Vector3Int curPos in aroundBounds.allPositionsWithin)
{
// If its the position of the current tile
if (curPos.x == 0 && curPos.y == 0)
{
continue;
}
// Get the tile on the tile map at that locaiton
Vector3Int curWallPos = new Vector3Int(Mathf.RoundToInt(curWall.position.x), Mathf.RoundToInt(curWall.position.y), 0);
Sprite curTileSpr = _tileMapRef.GetSprite(curPos + curWallPos);
// Test if the sprite exists, if it doesn't we can determine somethings about this wall
if (curTileSpr == null)
{
// These should be called max once per iteration, since a wall will never have both left and right empty
// or both close and far tiles empty
if (curPos.x != 0 && curPos.y == 0)
{
curWallTypeVect.x = curPos.x;
}
else if (curPos.y != 0 && curPos.x == 0)
{
curWallTypeVect.y = curPos.y;
}
// If, its neither, then it may be an inner wall, so save the current position
else
{
innerWallTypeVect.x = curPos.x;
innerWallTypeVect.y = curPos.y;
}
}
}
// If the wall is a left wall
if (curWallTypeVect.x == -1 && curWallTypeVect.y == 0)
{
// Choose a random tile
int randomIndex = Random.Range(0, _tileSet.LeftWallTilesLength());
AddTile(curWall.position, _tileSet.GetLeftWallTile(randomIndex));
}
// If the wall is a right wall
else if (curWallTypeVect.x == 1 && curWallTypeVect.y == 0)
{
// Choose a random tile
int randomIndex = Random.Range(0, _tileSet.RightWallTilesLength());
AddTile(curWall.position, _tileSet.GetRightWallTile(randomIndex));
}
// If the wall is a close wall
else if (curWallTypeVect.x == 0 && curWallTypeVect.y == -1)
{
// Choose a random tile
int randomIndex = Random.Range(0, _tileSet.CloseWallTilesLength());
AddTile(curWall.position, _tileSet.GetCloseWallTile(randomIndex));
}
// If the wall is a far wall
else if (curWallTypeVect.x == 0 && curWallTypeVect.y == 1)
{
// Choose a random tile
int randomIndex = Random.Range(0, _tileSet.FarWallTilesLength());
AddTile(curWall.position, _tileSet.GetFarWallTile(randomIndex));
}
// Outer corners
// If the wall is a close left outer corner
else if (curWallTypeVect.x == -1 && curWallTypeVect.y == -1)
{
// Choose a random tile
int randomIndex = Random.Range(0, _tileSet.CloseLeftOuterCornerWallTilesLength());
AddTile(curWall.position, _tileSet.GetCloseLeftOuterCornerWallTile(randomIndex));
}
// If the wall is a close right outer corner
else if (curWallTypeVect.x == 1 && curWallTypeVect.y == -1)
{
// Choose a random tile
int randomIndex = Random.Range(0, _tileSet.CloseRightOuterCornerWallTilesLength());
AddTile(curWall.position, _tileSet.GetCloseRightOuterCornerWallTile(randomIndex));
}
// If the wall is a far left outer corner
else if (curWallTypeVect.x == -1 && curWallTypeVect.y == 1)
{
// Choose a random tile
int randomIndex = Random.Range(0, _tileSet.FarLeftOuterCornerWallTilesLength());
AddTile(curWall.position, _tileSet.GetFarLeftOuterCornerWallTile(randomIndex));
}
// If the wall is a far right outer corner
else if (curWallTypeVect.x == 1 && curWallTypeVect.y == 1)
{
// Choose a random tile
int randomIndex = Random.Range(0, _tileSet.FarRightOuterCornerWallTilesLength());
AddTile(curWall.position, _tileSet.GetFarRightOuterCornerWallTile(randomIndex));
}
// Inner corners
// If the wall is a close left inner corner
else if (innerWallTypeVect.x == -1 && innerWallTypeVect.y == -1)
{
// Choose a random tile
int randomIndex = Random.Range(0, _tileSet.CloseLeftInnerCornerWallTilesLength());
AddTile(curWall.position, _tileSet.GetCloseLeftInnerCornerWallTile(randomIndex));
}
// If the wall is a close right inner corner
else if (innerWallTypeVect.x == 1 && innerWallTypeVect.y == -1)
{
// Choose a random tile
int randomIndex = Random.Range(0, _tileSet.CloseRightInnerCornerWallTilesLength());
AddTile(curWall.position, _tileSet.GetCloseRightInnerCornerWallTile(randomIndex));
}
// If the wall is a far left inner corner
else if (innerWallTypeVect.x == -1 && innerWallTypeVect.y == 1)
{
// Choose a random tile
int randomIndex = Random.Range(0, _tileSet.FarLeftInnerCornerWallTilesLength());
AddTile(curWall.position, _tileSet.GetFarLeftInnerCornerWallTile(randomIndex));
}
// If the wall is a far right inner corner
else if (innerWallTypeVect.x == 1 && innerWallTypeVect.y == 1)
{
// Choose a random tile
int randomIndex = Random.Range(0, _tileSet.FarRightInnerCornerWallTilesLength());
AddTile(curWall.position, _tileSet.GetFarRightInnerCornerWallTile(randomIndex));
}
// If the wall is a completely different kind of tile
else
{
Debug.Log("Strange wall encountered CurWallTypeVect: " + curWallTypeVect + ". InnerWallTypeVect: " + innerWallTypeVect);
AddTile(curWall.position, _tileSet.GetSingleFloorTile(0));
}
}
// Add the stairs to the tilemap
// Choose a random tile
int randomStairIndex = Random.Range(0, _tileSet.StairTilesLength());
AddTile(stairsTrans.position, _tileSet.GetStairTile(randomStairIndex));
// Iterate over the tiles we said we would spawn single-tiled decor at and try to spawn some
foreach (Vector2Int tilePos in oneTiledDecor)
{
AttemptPlaceSingleTileDecoration(tilePos);
}
// Iterate over the tiles we said we would spawn two-tiled decor at and try to spawn some
foreach (Vector2Int tilePos in twoTiledDecor)
{
AttemptPlaceTwoTileDecoration(tilePos);
}
// Give the tilemap
return(_tileMapRef);
}
