Transform beeTransform; // Transform component of the bee we are tracking.
void Update()
{
// Check if the bee is still valid.
if (beeTransform == null || beeController.IsStunned())
{
// Stop tracking if the bee is gone or is stunned.
Destroy(gameObject);
return;
}
// Check if the bee is visible yet.
Vector3 viewportPosition = Camera.main.WorldToViewportPoint(beeTransform.position);
if (viewportPosition.x >= 0f && viewportPosition.x <= 1f &&
viewportPosition.y >= 0f && viewportPosition.y <= 1f)
{
// Bee is in view, we can destroy the icon now.
Destroy(gameObject);
return;
}
// Update icon screen position.
Vector3 screenPosition = Camera.main.ViewportToScreenPoint(viewportPosition);
screenPosition.x = Mathf.Clamp(screenPosition.x, screenOffset, Screen.width - screenOffset);
screenPosition.y = Mathf.Clamp(screenPosition.y, screenOffset, Screen.height - screenOffset);
transform.position = screenPosition;
}
bool drag = false; // Are we currently dragging.
void Update()
{
// Check if we are currently dragging the mouse.
if (!drag)
{
// We only enter drag mode during gameplay and when the player hold the left mouse button.
if (GameplayManager.Instance.CanPlay() && Input.GetMouseButtonDown(0))
{
//Create 3D ray pointing into the world at the mouse position
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
//Check if our ray is hitting anything in the scene
RaycastHit hitInfo;
if (Physics.Raycast(ray, out hitInfo, 1000f))
{
//Check if the ray hits a bee. If so, we have 'selected the bee
if (hitInfo.transform.CompareTag("Bee"))
{
//Make sure the bee is not stunned
BeeController bee = hitInfo.transform.GetComponent <BeeController>();
if (!bee.IsStunned())
{
//Append waypoints to path for this bee,
//starting at current position
currentPath = hitInfo.transform.GetComponentInChildren <FlightPath>();
currentPath.Clear();
currentPath.Append(hitInfo.transform.position);
//Enter dragmode, keep appending waypoints to bee's path
drag = true;
}
}
}
}
}
else
{
// Check if we should stay in drag mode. We will exit if the bee has reached a honeycomb
// or the end of its path.
if (currentPath == null || currentPath.EndReached() || currentPath.Waypoints.Count == 0)
{
drag = false;
}
else
{
// Create a 3D ray pointing into the world and test against the play plane, which is
// set at position with z equals 0.
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hitInfo;
playPlane.Raycast(ray, out hitInfo, 1000f);
// Check if we have dragged far enough from our last waypoint.
Vector3 currentPosition = hitInfo.point;
Vector3 lastPosition = currentPath.GetLastPosition();
if (Vector3.Distance(currentPosition, lastPosition) > segmentLength)
{
// Keep adding fixed-length segments up to the current position. This way the
// dash-line for the path will be consistent instead of looking stretched.
float dragLength = Vector3.Distance(currentPosition, lastPosition);
Vector3 direction = Vector3.Normalize(currentPosition - lastPosition);
float totalLength = segmentLength;
while (totalLength < dragLength)
{
currentPath.Append(lastPosition + (direction * totalLength));
totalLength += segmentLength;
}
}
// Check if the player has stopped dragging.
if (Input.GetMouseButtonUp(0))
{
// Try to snap the bee's path to the closest honeycomb.
Beehive.Instance.SnapToHoneycomb(currentPath);
// Exit drag mode.
drag = false;
}
}
}
}