Question

我将这3个脚本连接到主摄像头。

飞越地形

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class FlyToOverTerrain : MonoBehaviour
{
    public Transform target;
    public float desiredHeight = 10f;

    public float flightSmoothTime = 10f;
    public float maxFlightspeed = 10f;
    public float flightAcceleration = 1f;

    public float levelingSmoothTime = 0.5f;
    public float maxLevelingSpeed = 10000f;
    public float levelingAcceleration = 2f;

    private Vector3 flightVelocity = Vector3.zero;
    private float heightVelocity = 0f;

    private void LateUpdate()
    {
        Vector3 position = transform.position;
        float currentHeight = position.y;
        if (target && flightAcceleration > float.Epsilon)
        {
            position = Vector3.SmoothDamp(position, target.position, ref flightVelocity, flightSmoothTime / flightAcceleration, maxFlightspeed, flightAcceleration * Time.deltaTime);
        }

        if (levelingAcceleration > float.Epsilon)
        {
            float targetHeight = Terrain.activeTerrain.SampleHeight(position) + desiredHeight;

            position.y = Mathf.SmoothDamp(currentHeight, targetHeight, ref heightVelocity, levelingSmoothTime / levelingAcceleration, maxLevelingSpeed, levelingAcceleration * Time.deltaTime);
        }

        transform.position = position;
        transform.rotation = Quaternion.Euler(0, 0, 0);
    }
}

在地形上巡逻

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[System.Serializable]
public class PatrolData
{
    public Transform target = null;
    public float minDistance = 5f;
    public float lingerDuration = 5f;
    public float desiredHeight = 10f;
    public float flightSmoothTime = 10f;
    public float maxFlightspeed = 10f;
    public float flightAcceleration = 1f;
    public float levelingSmoothTime = 0.5f;
    public float maxLevelingSpeed = 10000f;
    public float levelingAcceleration = 2f;
}

public class PatrolOverTerrain : MonoBehaviour
{
    public FlyToOverTerrain flyOverTerrain;
    public LookAtCamera lookAtCamera;
    public enum PatrolMode { Clamp, Wrap, PingPong };
    public PatrolData[] patrolPoints;
    public PatrolMode mode = PatrolMode.Wrap;

    private int iterator = 0;
    private int index = 0;
    private float lingerDuration = 0f;
    private int overallLength = 0;

    public bool autoFreedomPatrol = false;
    public List<GameObject> Targets = new List<GameObject>();
    public string tagName;
    public Vector3 distanceFromTarget;

    public void Start()
    {
        if (tagName != "")
        {
            GameObject[] tempObj = GameObject.FindGameObjectsWithTag(tagName);

            for (int i = 0; i < tempObj.Length; i++)
            {
                //Add to list only if it does not exist
                if (!Targets.Contains(tempObj[i]))
                {
                    Targets.Add(tempObj[i]);
                }
            }

            //Get the current Size
            if (tempObj != null)
            {
                overallLength = Targets.Count;
            }

            GeneratePatrolPoints();
        }
    }

    private void OnEnable()
    {
        if (patrolPoints.Length > 0)
        {
            lingerDuration = patrolPoints[index].lingerDuration;
        }
    }

    private void Update()
    {
        int length = patrolPoints.Length;
        if (!flyOverTerrain) return;
        if (patrolPoints.Length < 1) return;
        if (index < 0) return;

        var patrol = patrolPoints[index];
        if (lingerDuration <= 0)
        {
            iterator++;
            switch (mode)
            {
                case PatrolMode.Clamp:
                    index = (iterator >= length) ? -1 : iterator;
                    break;
                case PatrolMode.Wrap:
                    iterator = Modulus(iterator, length);
                    index = iterator;
                    break;
                case PatrolMode.PingPong:
                    index = PingPong(iterator, length);
                    break;
            }
            if (index < 0) return;

            patrol = patrolPoints[index];

            flyOverTerrain.target = patrol.target;
            flyOverTerrain.desiredHeight = patrol.desiredHeight;
            flyOverTerrain.flightSmoothTime = patrol.flightSmoothTime;
            flyOverTerrain.maxFlightspeed = patrol.maxFlightspeed;
            flyOverTerrain.flightAcceleration = patrol.flightAcceleration;
            flyOverTerrain.levelingSmoothTime = patrol.levelingSmoothTime;
            flyOverTerrain.maxLevelingSpeed = patrol.maxLevelingSpeed;
            flyOverTerrain.levelingAcceleration = patrol.levelingAcceleration;

            lookAtCamera.target = patrol.target;
            lookAtCamera.RotationSpeed = 3;

            lingerDuration = patrolPoints[index].lingerDuration;
        }

        Vector3 targetOffset = Vector3.zero;
        if ((bool)patrol.target)
        {
            targetOffset = transform.position - patrol.target.position;
        }

        float sqrDistance = patrol.minDistance * patrol.minDistance;
        if (targetOffset.sqrMagnitude <= sqrDistance)
        {
            flyOverTerrain.target = null;
            lookAtCamera.target = null;
            lingerDuration -= Time.deltaTime;
        }
        else
        {
            flyOverTerrain.target = patrol.target;
            lookAtCamera.target = patrol.target;
        }
        distanceFromTarget = transform.position - patrol.target.position;
    }

    private int PingPong(int baseNumber, int limit)
    {
        if (limit < 2) return 0;
        return limit - Mathf.Abs(limit - Modulus(baseNumber, limit + (limit - 2)) - 1) - 1;
    }

    private int Modulus(int baseNumber, int modulus)
    {
        return (modulus == 0) ? baseNumber : baseNumber - modulus * (int)Mathf.Floor(baseNumber / (float)modulus);
    }

    public void GeneratePatrolPoints()
    {
        patrolPoints = new PatrolData[Targets.Count];
        for (int i = 0; i < patrolPoints.Length; i++)
        {
            patrolPoints[i] = new PatrolData();
            patrolPoints[i].target = Targets[i].transform;
            patrolPoints[i].minDistance = 30f;
            patrolPoints[i].lingerDuration = 3f;
            patrolPoints[i].desiredHeight = 20f;
            patrolPoints[i].flightSmoothTime = 10f;
            patrolPoints[i].maxFlightspeed = 10f;
            patrolPoints[i].flightAcceleration = 3f;
            patrolPoints[i].levelingSmoothTime = 0.5f;
            patrolPoints[i].maxLevelingSpeed = 10000f;
            patrolPoints[i].levelingAcceleration = 2f;
        }
    }
}

看看相机

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class LookAtCamera : MonoBehaviour {

    //values that will be set in the Inspector
    public Transform target;
    public float RotationSpeed;

    //values for internal use
    private Quaternion _lookRotation;
    private Vector3 _direction;

    // Update is called once per frame
    void Update()
    {
        //find the vector pointing from our position to the target
        if (target)
            _direction = (target.position - transform.position).normalized;

        //create the rotation we need to be in to look at the target
        _lookRotation = Quaternion.LookRotation(_direction);

        //rotate us over time according to speed until we are in the required rotation
        transform.rotation = Quaternion.Slerp(transform.rotation, _lookRotation, Time.deltaTime * RotationSpeed);
    }
}

Patrol over terrain的第二个脚本正在使用Look at camera：有一个公共变量：

public LookAtCamera lookAtCamera;

然后在其他4个地方：

lookAtCamera.target = patrol.target;
lookAtCamera.RotationSpeed = 3;
lookAtCamera.target = null;
lookAtCamera.target = patrol.target;

这个想法是在相机开始移动之前首先运行游戏，如果需要将相机旋转到第一个目标，则开始移动到第一个目标。

等待目标X秒，然后朝向下一个目标旋转，然后开始移动到它面对的目标。

相机在目标之间移动，我没有任何错误或异常，但相机从不旋转。相机向后移动向前移动而不是先旋转然后向前移动到相对的目标。

我无法弄清楚为什么它不会旋转。

Answer 1

您在FlyOverTerrain脚本中每帧都覆盖相机旋转：

private void LateUpdate()
    {
    [...]
    transform.rotation = Quaternion.Euler(0, 0, 0);
}

为什么相机永远不会旋转面向下一个目标？

1 个答案: