// Set the correct sprite for a tile connected in 1 direction
// The Sprite arguments should show variations for the same direction
// depending on adjacent ocean tiles
// checkOceanLeft and checkOceanRight specify offsets to use when
// checking for ocean tiles
protected virtual void Set1ConnectionSprite(
Vector3Int position, Vector2Int checkOceanLeft,
Vector2Int checkOceanRight, ITilemap tilemap, Sprite source,
Sprite mouthStraight, Sprite mouthLeft, Sprite mouthRight)
{
// Is there an ocean tile on the left bank?
Vector3Int checkOceanPos = new Vector3Int(
Globals.WrappedCoord(position.x + checkOceanLeft.x,
Parameters.Width, Parameters.WrapX),
Globals.WrappedCoord(position.y + checkOceanLeft.y,
Parameters.Height, Parameters.WrapY), 0);
bool leftOcean =
checkOceanPos.x != -1 && checkOceanPos.y != -1 &&
LandTilemap.GetTile <Tile>(checkOceanPos).Elevation < 0.0f;
// Is there an ocean tile on the right bank?
checkOceanPos = new Vector3Int(
Globals.WrappedCoord(position.x + checkOceanRight.x,
Parameters.Width, Parameters.WrapX),
Globals.WrappedCoord(position.y + checkOceanRight.y,
Parameters.Height, Parameters.WrapY), 0);
bool rightOcean =
checkOceanPos.x != -1 && checkOceanPos.y != -1 &&
LandTilemap.GetTile <Tile>(checkOceanPos).Elevation < 0.0f;
if (leftOcean && rightOcean)
{
// Straight river mouth
sprite = mouthStraight;
}
else if (leftOcean)
{
// River mouth turning left
sprite = mouthLeft;
}
else if (rightOcean)
{
// River mouth turning right
sprite = mouthRight;
}
else
{
// River source
sprite = source;
}
}
// Set the correct sprite for a tile connected in 2 adjacent directions
// The Sprite arguments should show variations for the same directions
// depending on whether an ocean tile is adjacent
// checkOcean specifies offset to use when checking for ocean tile
protected virtual void SetLSprite(
Vector3Int position, Vector2Int checkOcean, ITilemap tilemap,
Sprite bend, Sprite mouth)
{
Vector3Int checkOceanPos = new Vector3Int(
Globals.WrappedCoord(position.x + checkOcean.x,
Parameters.Width, Parameters.WrapX),
Globals.WrappedCoord(position.y + checkOcean.y,
Parameters.Height, Parameters.WrapY), 0);
bool ocean =
checkOceanPos.x != -1 && checkOceanPos.y != -1 &&
LandTilemap.GetTile <Tile>(checkOceanPos).Elevation < 0.0f;
if (ocean)
{
// Two rivers' mouth
sprite = mouth;
}
else
{
// River bend
sprite = bend;
}
}