/// <summary>
/// Handle zoom of an ortographic camera.
/// </summary>
/// <param name="deltaMovementArgs">Delta movement arguments of the input.</param>
private void ZoomOrtographic(IDeltaMovementInputArgs deltaMovementArgs)
{
if (deltaMovementArgs != null)
{
cameraToMove.orthographicSize -= deltaMovementArgs.DeltaMovement * Time.deltaTime * zoomSpeed;
}
cameraToMove.orthographicSize = cameraToMove.orthographicSize >= minOrtographicCameraZoom ? cameraToMove.orthographicSize : minOrtographicCameraZoom;
cameraToMove.orthographicSize = cameraToMove.orthographicSize >= maxOrtographicCameraZoom ? maxOrtographicCameraZoom : cameraToMove.orthographicSize;
}
/// <summary>
/// Handle zoom of a perspective camera.
/// </summary>
/// <param name="deltaMovementArgs">Delta movement arguments of the input.</param>
private void ZoomPerspective(IDeltaMovementInputArgs deltaMovementArgs)
{
if (deltaMovementArgs == null)
{
return;
}
var zoomedPosition = cameraToMove.transform.position;
// Get expected position
zoomedPosition -= Vector3.forward * -(deltaMovementArgs.DeltaMovement * Time.deltaTime * zoomSpeed);
// Keep camera position in boundary
zoomedPosition = zoomedPosition.z <= minPerspectiveCameraDistance ? zoomedPosition : Vector3.forward * minPerspectiveCameraDistance;
zoomedPosition = zoomedPosition.z >= maxPerspectiveCameraDistance ? zoomedPosition : Vector3.forward * maxPerspectiveCameraDistance;
cameraToMove.transform.position = zoomedPosition;
}
/// <summary> /// Gets direction of the positional input multiplied with the delta movement. Will be a zero vector most of the time, use overload with IVectorMovementInputArgs instead. /// </summary> /// <param name="args">Arguments of the input event.</param> /// <returns>Direction of the input.</returns> public static Vector2 GetDirection(IDeltaMovementInputArgs args) => (args.EndPos - args.StartPos) * args.DeltaMovement;
/// <summary> /// Gets magnitude of the delta movement input. /// </summary> /// <param name="args">Arguments of the input event.</param> /// <returns>Magnitude of the input.</returns> public static float GetMagnitude(IDeltaMovementInputArgs args) => args.DeltaMovement;
/// <summary> /// /// Gets start position added with the direction multiplied by the delta movement of the input. /// </summary> /// <param name="args">Arguments of the input event.</param> /// <returns>Focus point of the input.</returns> public static Vector2 GetFocusPoint(IDeltaMovementInputArgs args) => args.StartPos + GetDirection(args) * args.DeltaMovement;