Rasagar/Library/PackageCache/com.unity.cinemachine/Runtime/Behaviours/CinemachineCameraOffset.cs
2024-08-26 23:07:20 +03:00

71 lines
2.6 KiB
C#

using UnityEngine;
using Cinemachine.Utility;
using Cinemachine;
/// <summary>
/// An add-on module for Cinemachine Virtual Camera that adds a final offset to the camera
/// </summary>
[AddComponentMenu("")] // Hide in menu
[ExecuteAlways]
[HelpURL(Documentation.BaseURL + "api/Cinemachine.CinemachineCameraOffset.html")]
[SaveDuringPlay]
public class CinemachineCameraOffset : CinemachineExtension
{
/// <summary>
/// Offset the camera's position by this much (camera space)
/// </summary>
[Tooltip("Offset the camera's position by this much (camera space)")]
public Vector3 m_Offset = Vector3.zero;
/// <summary>
/// When to apply the offset
/// </summary>
[Tooltip("When to apply the offset")]
public CinemachineCore.Stage m_ApplyAfter = CinemachineCore.Stage.Aim;
/// <summary>
/// If applying offset after aim, re-adjust the aim to preserve the screen position
/// of the LookAt target as much as possible
/// </summary>
[Tooltip("If applying offset after aim, re-adjust the aim to preserve the screen position"
+ " of the LookAt target as much as possible")]
public bool m_PreserveComposition;
/// <summary>
/// Applies the specified offset to the camera state
/// </summary>
/// <param name="vcam">The virtual camera being processed</param>
/// <param name="stage">The current pipeline stage</param>
/// <param name="state">The current virtual camera state</param>
/// <param name="deltaTime">The current applicable deltaTime</param>
protected override void PostPipelineStageCallback(
CinemachineVirtualCameraBase vcam,
CinemachineCore.Stage stage, ref CameraState state, float deltaTime)
{
if (stage == m_ApplyAfter)
{
bool preserveAim = m_PreserveComposition
&& state.HasLookAt && stage > CinemachineCore.Stage.Body;
Vector3 screenOffset = Vector2.zero;
if (preserveAim)
{
screenOffset = state.RawOrientation.GetCameraRotationToTarget(
state.ReferenceLookAt - state.CorrectedPosition, state.ReferenceUp);
}
Vector3 offset = state.RawOrientation * m_Offset;
state.PositionCorrection += offset;
if (!preserveAim)
state.ReferenceLookAt += offset;
else
{
var q = Quaternion.LookRotation(
state.ReferenceLookAt - state.CorrectedPosition, state.ReferenceUp);
q = q.ApplyCameraRotation(-screenOffset, state.ReferenceUp);
state.RawOrientation = q;
}
}
}
}