private void RotateCamera(PulsarMessage message)
{
PulsarCamera camera = null;
if (_renderSurface.InvokeRequired)
{
var delegateCameraRotate = new ThreadSafeCameraRotate(RotateCamera);
_renderSurface.Invoke(delegateCameraRotate, new object[] { message });
}
else
{
//get the mouseDelta property from the message
message.Properties.TryGetValue("mouseDelta", out object mouseDelta);
if (mouseDelta != null)
{
IntVector2 delta = (IntVector2)mouseDelta;
if (delta != null)
{
camera = _mainApplication.DisplayScene.SceneCamera;
if (camera != null)
{
//remove any Z component computed as a result of a previous 'Rotate' call
//fixes Z axis rotation to zero thus preventing camera roll
var cameraRotation = camera.Node.Rotation.ToEulerAngles();
cameraRotation.Z = 0;
camera.Node.Rotation = new Quaternion(cameraRotation.X, cameraRotation.Y, cameraRotation.Z);
//do the desired rotation
camera.Node.Rotate(new Quaternion(delta.Y, delta.X, 0));
}
}
}
}
}
private void PanCamera(PulsarMessage message)
{
PulsarCamera camera = null;
if (_renderSurface.InvokeRequired)
{
var delegateCameraRotate = new ThreadSafeCameraPan(PanCamera);
_renderSurface.Invoke(delegateCameraRotate, new object[] { message });
}
else
{
string keyPressed = "";
//check if any constraint key is present
message.Properties.TryGetValue("constrainKeyDown", out object constrainKeyPressed);
bool keyDownFound = (constrainKeyPressed != null);
if (keyDownFound)
{
keyPressed = (string)constrainKeyPressed;
}
//get the mouseDelta property from the message
message.Properties.TryGetValue("mouseDelta", out object mouseDelta);
if (mouseDelta != null)
{
IntVector2 delta = (IntVector2)mouseDelta;
if (delta != null)
{
camera = _mainApplication.DisplayScene.SceneCamera;
if (camera != null)
{
//only pan horizontally if there is no vertical constraint
if (!keyDownFound || keyPressed != "shift")
{
if (delta.X > 0)
{
camera.Node.Translate(Vector3.Right * 3);
}
else if (delta.X < 0)
{
camera.Node.Translate(Vector3.Left * 3);
}
}
//only pan vertically if there is no horizontal constraint
if (!keyDownFound || keyPressed != "ctrl")
{
if (delta.Y > 0)
{
camera.Node.Translate(Vector3.Down * 3);
}
else if (delta.Y < 0)
{
camera.Node.Translate(Vector3.Up * 3);
}
}
}
}
}
}
}
private void AdjustZoom()
{
PulsarCamera mainCamera = null;
Component cameraComponent = null;
if (InvokeRequired)
{
Urho.Application.InvokeOnMain(AdjustZoom);
}
else
{
if (!Focused)
{
return;
}
//get the main camera
if (_mainApplication != null)
{
if (_mainApplication.DisplayScene != null)
{
cameraComponent = _mainApplication.DisplayScene.Components.ToList().Find(camera => camera.Node.Name == "mainCamera");
if (cameraComponent != null)
{
mainCamera = (PulsarCamera)cameraComponent;
if (mainCamera == null)
{
return;
}
}
}
}
switch (_zoom)
{
case Zoom.In:
mainCamera.Camera.Fov -= 2.0f;
break;
case Zoom.Out:
mainCamera.Camera.Fov += 2.0f;
break;
}
}
}
private void AdjustZoom()
{
PulsarCamera camera = null;
if (_renderSurface.InvokeRequired)
{
var delegateZoom = new ThreadSafeAdjustZoom(AdjustZoom);
_renderSurface.Invoke(delegateZoom, Array.Empty <object>());
}
else
{
//get the main camera
if (_mainApplication != null)
{
if (_mainApplication.DisplayScene != null)
{
camera = _mainApplication.DisplayScene.SceneCamera;
if (camera == null)
{
return;
}
}
}
switch (_zoom)
{
case Zoom.In:
camera.Camera.Node.Translate(Vector3.Forward * 3, TransformSpace.Local);
break;
case Zoom.Out:
camera.Camera.Node.Translate(Vector3.Forward * -3, TransformSpace.Local);
break;
}
}
}
