// Awake is being called before Start; this makes sure we have a matrix
// to begin with when we add the blocks
void Awake()
{
// because of how we wrote the accessor this will also immediately
// build the matrix of our level
var grid = gameObject.GetComponent <RectGrid>();
var para = gameObject.GetComponent <Parallelepiped>();
SlidingPuzzle.InitializePuzzle(grid, para);
}
// visualizes the matrix in text form to let you see what's going on
void OnGUI()
{
const int w = 100;
const int h = 100;
const int x = 10;
var y = Screen.height - x - h;
GUI.TextArea(new Rect(x, y, w, h), SlidingPuzzle.MatrixToString());
}
void OnMouseUp()
{
var position = transform.position;
_beingDragged = false;
/* transform.position = ClampPosition(position); */
SlidingPuzzle._grid.AlignTransform(transform);
lastSnap = position;
SlidingPuzzle.RegisterObstacle(transform, false);
}
void OnMouseDown()
{
var touchPoint = Camera.main.ScreenToWorldPoint(Input.mousePosition);
var position = transform.position;
var scale = transform.lossyScale;
_beingDragged = true;
touchOffset = touchPoint - position;
lastSnap = position;
_bounds = SlidingPuzzle.CalculateSlidingBounds(position, scale);
SlidingPuzzle.RegisterObstacle(transform, true);
}
/// <summary>
/// This is where the dragging logic takes places.
/// </summary>
private void Drag()
{
var input = Camera.main.ScreenToWorldPoint(Input.mousePosition);
var scale = transform.lossyScale;
var destination = ClampPosition(input - touchOffset);
destination.z = transform.position.z;
// Now use that information to get the new bounds.
_bounds = SlidingPuzzle.CalculateSlidingBounds(lastSnap, scale);
// Simulate a snap to the grid so we can get potentially new bounds
// in the next step.
lastSnap = ClampPosition(SlidingPuzzle._grid.AlignVector3(destination, scale));
// Move to the destination!
transform.position = destination;
}
void Start()
{
_beingDragged = false;
SlidingPuzzle.RegisterObstacle(transform, false);
}