让玩家看方向相对于相机的统一答案

【问题标题】：Make players look direction relative to camera unity让玩家看方向相对于相机的统一
【发布时间】：2020-12-12 22:26:21
【问题描述】：

我正在统一制作第三人称角色控制器，我让玩家移动带有方向和动画。我的问题是：如何使运动旋转相对于相机旋转

注意：我不使用 transform.translate 或任何类似的方法来移动播放器，我正在使用输入向量和 atan2 计算旋转，然后使用动画移动播放器。所以我不能只改变x方向和y方向，我只能改变y旋转

我当前的播放器外观代码

Vector3 CalculateRotation(float H, float V)
    {
        IsTurning = IsMoving(H, V);
        if (IsTurning) {
            angle = Mathf.RoundToInt(Mathf.Atan2(V, -H) * Mathf.Rad2Deg);
            IsTurned = false;

            ani.SetBool("isWalking", true);
            return new Vector3(0, Mathf.RoundToInt(angle), 0);

        }
        else
        {
            ani.SetBool("isWalking", false);
        }


        return new Vector3(0, Mathf.RoundToInt(CurrentRotation.y), 0);
          
    }

    void LookTorwards(Vector3 T_Angle)
    {

        NewRotation = T_Angle - CurrentRotation;
        NewRotation.y = Mathf.Repeat(NewRotation.y + 180f, 360f) - 180f;
        if (NewRotation.y == 180)
        {
            NewRotation.y -= 1;
        }

        if (TargetRotation.y == CurrentRotation.y)
        {
            IsTurned = true;
            return;
        }

        if (NewRotation.y > 0)
        {
            transform.Rotate(new Vector3(0, RotationSpeed, 0));
            CurrentRotation.y += RotationSpeed;
        }
        else if (NewRotation.y < 0)
        {
            transform.Rotate(new Vector3(0, -RotationSpeed, 0));
            CurrentRotation.y -= RotationSpeed;
        }
    }

【问题讨论】：

标签： unity3d atan2

【解决方案1】：

我目前没有时间在 Unity 上进行测试，所以我给你一些伪代码来帮助你解决问题

// Get the direction of where the player should ahead in world space
Vector3 hMoveDir = cameraTransform.right * movementHorizontal;;
Vector3 vMoveDir= cameraTransform.forward * movementVertical;
Vector3 moveDir = hMoveDir + vMoveDir;

// Create the rotation we need according to moveDir
lookRotation = Quaternion.LookRotation(moveDir);

// Rotate player over time according to speed until we are in the required rotation
playerTransform.rotation = Quaternion.Slerp(playerTransform.rotation, lookRotation , Time.deltaTime * RotationSpeed);

【讨论】：