void Update()
{
if (answered)
{
return;
}
answerButton.interactable = answerArea.vertices.Count >= 3;
var ray = Camera.main.ScreenPointToRay(Input.mousePosition);
ray = ray.ReverseRay();
ray.direction = -ray.origin;
RaycastHit hit;
if (isDragging)
{
if (Input.GetMouseButtonUp(0))
{
answerArea.vertices[dragIndex] = dragObject.transform.position;
isDragging = false;
dragObject = null;
indicator.SetActive(true);
}
else if (Input.GetKeyDown(KeyCode.Escape))
{
dragObject.transform.position = dragStartPost;
isDragging = false;
dragObject = null;
dirty = true;
indicator.SetActive(true);
}
else if (Physics.Raycast(ray, out hit, 100f))
{
//NOTE(Simon): "ray.direction * .5f" is a patch for an annoying bug I couldn't figure out.
dragObject.transform.position = hit.point + ray.direction * .5f;
dirty = true;
//NOTE(Simon): indicator is not visible at this point, but still update its position to prevent visual glitch on reappearance
indicator.transform.position = hit.point;
}
}
else if (Physics.Raycast(ray, out hit, 100f, LayerMask.GetMask("Area")))
{
eligibleForPlacement = false;
Cursors.isOverridingCursor = true;
Cursor.SetCursor(Cursors.Instance.CursorDrag, new Vector2(15, 15), CursorMode.Auto);
indicator.SetActive(false);
if (Input.GetMouseButtonDown(0) && !EventSystem.current.IsPointerOverGameObject())
{
isDragging = true;
dragStartPost = hit.transform.position;
dragObject = hit.transform.gameObject;
dragIndex = answerArea.vertices.IndexOf(dragStartPost);
}
}
else if (Physics.Raycast(ray, out hit, 100f))
{
Cursors.isOverridingCursor = false;
indicator.SetActive(true);
indicator.transform.position = hit.point;
if (Input.GetKeyDown(KeyCode.Escape))
{
answered = true;
answerArea = null;
}
if (Input.GetMouseButtonDown(0) && !EventSystem.current.IsPointerOverGameObject())
{
//NOTE(Simon): Store if mouse button went down at a valid time (i.e. not while dragging)
eligibleForPlacement = true;
}
if (eligibleForPlacement && Input.GetMouseButtonUp(0) && !EventSystem.current.IsPointerOverGameObject())
{
answerArea.vertices.Add(hit.point);
areaPoints.Add(NewPoint(hit.point));
dirty = true;
}
}
if (dirty)
{
var vertices = new Vector3[areaPoints.Count];
for (int i = 0; i < areaPoints.Count; i++)
{
vertices[i] = areaPoints[i].transform.position;
}
areaRenderer.SetVertices(vertices);
dirty = false;
}
}