void Update()
{
if (!lockScreen)
{
// Zoom on mobile with 2 fingers
if (Input.touchCount == 2)
{
isMultiTouching = true;
if (Input.GetTouch(0).phase == TouchPhase.Began || Input.GetTouch(1).phase == TouchPhase.Began)
{
touchStart = true;
}
// Calculate difference between previous distance between 2 fingers and current distance between 2 fingers
Touch touchZero = Input.GetTouch(0);
Touch touchOne = Input.GetTouch(1);
Vector2 touchZeroPrevPos = touchZero.position - touchZero.deltaPosition;
Vector2 touchOnePrevPos = touchOne.position - touchOne.deltaPosition;
float prevMagnitude = (touchZeroPrevPos - touchOnePrevPos).magnitude;
float currentMagnitude = (touchZero.position - touchOne.position).magnitude;
float difference = currentMagnitude - prevMagnitude;
// Apply that difference to zoom function
Zoom(difference * mobilePinchSensitivity);
}
// Zoom on PC with scrollwheel
Zoom(Input.GetAxis("Mouse ScrollWheel") * PCScrollSensitivity);
}
// Initialise some values on initial mouse press
if (Input.GetMouseButtonDown(0))
{
if (EventSystem.current.IsPointerOverGameObject())
{
interactingWithGUI = true;
}
panning = false;
touchStartPos = cam.ScreenToWorldPoint(MousePosition());
}
if (Input.GetMouseButton(0))
{
if (!interactingWithGUI)
{
// Find difference between pointer position and camera position
direction = touchStartPos - Camera.main.ScreenToWorldPoint(MousePosition());
// If the player lifts the finger that touched the screen first before lifting the other finger, the game would snap to the new first finger position. That is why we need to set the direction to zero briefly.
if ((isMultiTouching && Input.touchCount < 2) || touchStart)
{
direction = Vector3.zero;
touchStartPos = cam.ScreenToWorldPoint(MousePosition());
isMultiTouching = false;
touchStart = false;
}
else
{
// Move the camera
if (!lockScreen)
{
cam.transform.position += direction;
}
}
if (!lockScreen)
{
// Clamp camera pos to bounded area
cam.transform.position = new Vector3(
Mathf.Clamp(cam.transform.position.x, -cameraBounds.x, cameraBounds.x),
Mathf.Clamp(cam.transform.position.y, -cameraBounds.y, cameraBounds.y),
-10f);
}
// Check if player is panning or clicking
if (!panning)
{
panning = direction.magnitude > 0.1f;
}
}
}
// Select a tile if player wasn't panning and start color animation
if (Input.GetMouseButtonUp(0))
{
if (!panning && !interactingWithGUI)
{
Vector2 mousePos = cam.ScreenToWorldPoint(MousePosition());
RaycastHit2D hit = Physics2D.Raycast(mousePos, Vector2.zero);
if (hit)
{
uiController.ActivateBuildMenu(hit);
}
else
{
Deselect();
if (GameManager.currentEvent != null)
{
uiController.eventPanel.SetActive(true);
}
}
}
interactingWithGUI = false;
}
}
