我有以下模块，该模块具有可分配变量，该变量在模块中定义，在子例程中分配，然后在第一个子例程调用的第二个子例程中使用。在这种情况下，我是否必须将变量传递给第二个子例程并声明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;
}
}
？还是因为它是一个全局变量，所以不需要将其作为参数传递？
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;
}
}
}
答案 0 :(得分：3)
我是否必须将变量传递给第二个子例程并声明
INTENT(inout)？
不，你不知道。默认情况下，在模块主体中标出的任何变量都具有save属性。但是，您必须确保仅在执行第一个子例程之后才调用第二个子例程，否则程序将因total尚未初始化而失败。
模块中声明的所有函数和子例程都可以通过主机关联访问total。
顺便说一句，您应该在代码中解决一些问题，就像@PierredeBuyl在评论中提到的那样：
SAVE语句。IMPLICIT伪指令，如果您不对其进行更改，则无需在子例程中重新声明它。my_subr1中参数的声明。