// Attempt to grow this bud, taking into account possible collisions with the bounding box,
// existing plants, and the stage. Returns true if the growth was successful, false if the
// bud died after growing.
public bool TryToGrow(TilePlant plant)
{
// If we split, hijack this update to show the new split tile.
if (pendingSplit != null)
{
nextType = pendingSplit.type;
travel = pendingSplit.rotation;
}
plant.UpdateLocation(location, phase, nextType, travel);
var newHeading = GetNewHeading(nextType);
var newLocation = Travel(newHeading);
var newPhase = GetNewPhase();
// If we split, try to grow split1, replace heading for the main bud.
if (pendingSplit != null)
{
var splitDirection = pendingSplit.split1;
var splitLocation = location + GetDirectionVector(splitDirection);
if (!FatalLocation(plant, splitLocation, false))
{
plant.AddBud(new Bud {
location = splitLocation,
travel = splitDirection,
phase = newPhase,
});
plant.UpdateLocation(splitLocation, newPhase, PlantTileType.Bud, splitDirection);
}
newHeading = pendingSplit.split2;
newLocation = Travel(newHeading);
pendingSplit = null;
}
nextType = PlantTileType.Straight; // May be overridden by CheckCollisions.
if (FatalLocation(plant, newLocation, true))
{
return(false);
}
// Needed for checking splitter rotations.
location = newLocation;
travel = newHeading;
phase = newPhase;
CheckForSplitter(plant, newLocation);
plant.UpdateLocation(newLocation, newPhase, PlantTileType.Bud, newHeading);
return(true);
}
private bool CheckForSplitter(TilePlant plant, Vector3Int location)
{
var tile = plant.stageTilemap.GetTile(location);
if (!tile)
{
return(false);
}
if (tile.name.StartsWith("splitter_"))
{
plant.branchAudioSource.Play();
nextType = PlantTileType.Tee;
pendingSplit = GetSplit(tile.name, travel);
return(true);
}
return(false);
}
// Returns true if the specified location will kill buds. If playSound is true, will play an
// appropriate sound for the poor, poor plant.
private bool FatalLocation(TilePlant plant, Vector3Int location, bool playSound)
{
// First, worry about the world boundaries...
if (
location.x < StageConstants.leftLimit ||
location.x > StageConstants.rightLimit ||
location.y < StageConstants.bottomLimit
)
{
if (playSound)
{
plant.hitLowAudioSource.Play();
}
return(true);
}
// Next, plant self-collisions...
if (plant.plantTilemap.GetTile(location) != null)
{
if (playSound)
{
plant.hitAudioSource.Play();
}
return(true);
}
// Finally, stage collisions.
var tile = plant.stageTilemap.GetTile(location);
if (!tile || tile.name != "spike")
{
return(false);
}
// tile.name == "spike"
if (playSound)
{
plant.hitAudioSource.Play();
}
return(true);
}
// Start is called before the first frame update
void Start()
{
vine = GetComponent <TilePlant>();
startingHeight = camera.transform.position.y;
camera.SendMessage("MoveCamera", camera.transform.position);
}