//Methods
//-API
public void setCamera(
CameraTypes.CameraSettings inCameraSettings)
{
XUtils.check(inCameraSettings);
internalStopTransition();
internalSetCameraSettings(inCameraSettings);
}
//--Transition
private void internalStartTransition(
CameraTypes.CameraSettings inTargetCameraSettings, float inSpeed)
{
_transitionState = new Optional <TransitionState>(
new TransitionState(inTargetCameraSettings, inSpeed)
);
_cameraSettings = null;
}
//NB: Speed is used for ortho size change
//TODO: Find some better approach for transition time setup
public void setCamera(
CameraTypes.CameraSettings inCameraSettings, float inSpeed = 0.0f)
{
XUtils.check(inCameraSettings);
XUtils.check(inSpeed >= 0);
internalStopTransition();
if (0.0f == inSpeed)
{
internalSetCameraSettings(inCameraSettings);
}
else
{
internalStartTransition(inCameraSettings, inSpeed);
}
}
private void internalUpdateTransition()
{
//Compute progress based on main param value & speed
float theTransitionSpeed = _transitionState.getValue().speed;
CameraTypes.CameraSettings theTargetCameraSettings =
_transitionState.getValue().targetCameraSettings;
float theTransitionSpeedPerUpdate = theTransitionSpeed * Time.fixedUnscaledDeltaTime;
float theProgressForSpeedPerUpdate = theTransitionSpeedPerUpdate /
Mathf.Abs(theTargetCameraSettings.orthographicSize - _camera.orthographicSize);
theProgressForSpeedPerUpdate = Mathf.Clamp(theProgressForSpeedPerUpdate, 0.0f, 1.0f);
//Stop transition if params will be achieved on this update or...
if (1.0f == theProgressForSpeedPerUpdate)
{
internalStopTransition();
internalSetCameraSettings(theTargetCameraSettings);
}
else
{
//...evaluate params otherwise
_camera.transform.position = Vector3.Lerp(
_camera.transform.position, theTargetCameraSettings.position,
theProgressForSpeedPerUpdate
);
_camera.transform.rotation = Quaternion.Lerp(
_camera.transform.rotation, theTargetCameraSettings.rotation,
theProgressForSpeedPerUpdate
);
_camera.orthographicSize = Mathf.Lerp(
_camera.orthographicSize, theTargetCameraSettings.orthographicSize,
theProgressForSpeedPerUpdate
);
}
}
//--Camera settings
private void internalSetCameraSettings(
CameraTypes.CameraSettings inCameraSettings)
{
_cameraSettings = inCameraSettings;
}
public TransitionState(
CameraTypes.CameraSettings inTargetCameraSettings, float inSpeed)
{
targetCameraSettings = inTargetCameraSettings;
speed = inSpeed;
}
