private static CameraTransform UpdateCameraTransform(CameraInput input, Vector3 targetPosition)
{
var dir = new Vector3(0, 0, -input.Distance);
var orbitRotation = Quaternion.Euler(input.Y, input.X, 0);
var position = targetPosition + TargetOffset + orbitRotation * dir;
var rotation = Quaternion.LookRotation(targetPosition + TargetOffset - position);
return(new CameraTransform
{
Position = position,
Rotation = rotation
});
}
private static CameraInput UpdateCameraInput(CameraInput input)
{
var x = input.X + Input.GetAxis("Mouse X");
var y = input.Y - Input.GetAxis("Mouse Y");
var distance = input.Distance + Input.GetAxis("Mouse ScrollWheel") * ZoomScale;
x %= 360;
y = Mathf.Clamp(y, MinYAngle, MaxYAngle);
distance = Mathf.Clamp(distance, MinCameraDistance, MaxCameraDistance);
return(new CameraInput
{
X = x,
Y = y,
Distance = distance
});
}