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

42 lines
1.8 KiB
C#

using UnityEngine;
namespace Cinemachine
{
/// <summary>
/// This is a CinemachineComponent in the Aim section of the component pipeline.
/// Its job is to aim the camera hard at the LookAt target.
/// </summary>
[DocumentationSorting(DocumentationSortingAttribute.Level.UserRef)]
[AddComponentMenu("")] // Don't display in add component menu
[SaveDuringPlay]
public class CinemachineHardLookAt : CinemachineComponentBase
{
/// <summary>True if component is enabled and has a LookAt defined</summary>
public override bool IsValid { get { return enabled && LookAtTarget != null; } }
/// <summary>Get the Cinemachine Pipeline stage that this component implements.
/// Always returns the Aim stage</summary>
public override CinemachineCore.Stage Stage { get { return CinemachineCore.Stage.Aim; } }
/// <summary>Applies the composer rules and orients the camera accordingly</summary>
/// <param name="curState">The current camera state</param>
/// <param name="deltaTime">Used for calculating damping. If less than
/// zero, then target will snap to the center of the dead zone.</param>
public override void MutateCameraState(ref CameraState curState, float deltaTime)
{
if (IsValid && curState.HasLookAt)
{
Vector3 dir = (curState.ReferenceLookAt - curState.CorrectedPosition);
if (dir.magnitude > Epsilon)
{
if (Vector3.Cross(dir.normalized, curState.ReferenceUp).magnitude < Epsilon)
curState.RawOrientation = Quaternion.FromToRotation(Vector3.forward, dir);
else
curState.RawOrientation = Quaternion.LookRotation(dir, curState.ReferenceUp);
}
}
}
}
}