/// <summary>
/// Lerp Tile to position.
/// The tile position in tilemap is only changed when the tile reaches the target.
/// </summary>
/// <param name="tilePosition"> Position of tile which we want move</param>
/// <param name="endPosition"> Position where we want to place tile </param>
/// <param name="timeOfMove"> How long tile should move</param>
/// <returns></returns>
public static IEnumerator LerpTileToPositionDiscrete(this Tilemap t, Vector3Int startPosition, Vector3Int endPosition, float timeOfMove)
{
float elapsedTime = 0;
Vector3 startPos = VectorExtensionsUB.ConvertToVector3(startPosition);
Vector3 endPos = VectorExtensionsUB.ConvertToVector3(endPosition);
TileBase lerpedTile = t.GetTile <TileBase>(startPosition);
float lerpTimeNormalized = 0;
while (lerpTimeNormalized <= 1)
{
yield return(null);
elapsedTime += Time.smoothDeltaTime;
lerpTimeNormalized = elapsedTime / timeOfMove;
Vector3 tempPosition = Vector3.Lerp(Vector3.zero, endPos - startPos, lerpTimeNormalized);
t.SetTransformMatrix(startPosition, Matrix4x4.Translate(tempPosition));
}
yield return(null);
t.SetTile(endPosition, lerpedTile);
t.SetTile(startPosition, null);
}
/// <summary>
/// Lerp Tile by offset
/// The tile position in the tilemap is swapped immediately and then the movement from the initial position to the final one is performed.
/// </summary>
/// <param name="startPosition"> Position of tile which we want move</param>
/// <param name="offset"> Offset about which we want move tile </param>
/// <param name="timeOfMove"> How long tile should move</param>
/// <returns></returns>
public static IEnumerator LerpTileByOffsetContinuous(this Tilemap t, Vector3Int startPosition, Vector3Int offset, float timeOfMove)
{
float elapsedTime = 0;
Vector3 endPosition = VectorExtensionsUB.ConvertToVector3(offset);
TileBase lerpedTile = t.GetTile <TileBase>(startPosition);
t.SetTile(startPosition + offset, lerpedTile);
t.SetTile(startPosition, null);
float lerpTimeNormalized = 0;
while (lerpTimeNormalized <= 1)
{
elapsedTime += Time.smoothDeltaTime;
lerpTimeNormalized = elapsedTime / timeOfMove;
Vector3 tempPosition = Vector3.Lerp(endPosition, Vector3.zero, lerpTimeNormalized);
t.SetTransformMatrix(startPosition, Matrix4x4.Translate(tempPosition));
yield return(null);
}
}
