C# 相机跟踪-考虑将值存储在临时变量中

无法使此行正常工作，它需要一个临时变量。没有它，相机就只能平放在地上

transform.position.y = currentHeight;

错误CS1612:无法修改“UnityEngine.Transform.position”的值类型返回值。考虑将值存储在临时变量

中 部分代码不是我的，只是尝试从java脚本转换到c-sharp并在我当前的camera脚本中实现

 // Calculate the current rotation angles
 var wantedRotationAngle = target.eulerAngles.y;
 var wantedHeight = target.position.y + height;
 var currentRotationAngle = transform.eulerAngles.y;
 var currentHeight = transform.position.y;
 // Damp the rotation around the y-axis
 currentRotationAngle = Mathf.LerpAngle (currentRotationAngle, wantedRotationAngle, rotationDamping * Time.deltaTime);
 // Damp the height

 currentHeight = Mathf.Lerp (currentHeight, wantedHeight, heightDamping * Time.deltaTime);
 // Convert the angle into a rotation

 var currentRotation = Quaternion.Euler (0, currentRotationAngle, 0);
 // Set the position of the camera on the x-z plane to:
 // distance meters behind the target
 transform.position = target.position;
 transform.position -= currentRotation * Vector3.forward * distance;
 // Set the height of the camera

 transform.position.y = currentHeight;

 // Always look at the target
 transform.LookAt (target);

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我不相信你可以这样设置向量的分离轴，一种方法是

// Calculate the current rotation angles
var wantedRotationAngle = target.eulerAngles.y;
var wantedHeight = target.position.y + height;
var currentRotationAngle = transform.eulerAngles.y;
var currentHeight = transform.position.y;
// Damp the rotation around the y-axis
currentRotationAngle = Mathf.LerpAngle (currentRotationAngle, wantedRotationAngle, rotationDamping * Time.deltaTime);
// Damp the height

currentHeight = Mathf.Lerp (currentHeight, wantedHeight, heightDamping * Time.deltaTime);
// Convert the angle into a rotation

var currentRotation = Quaternion.Euler (0, currentRotationAngle, 0);
// Set the position of the camera on the x-z plane to:
// distance meters behind the target
transform.position = target.position;
transform.position -= currentRotation * Vector3.forward * distance;
// Set the height of the camera

Vector3 temp = transform.position; //Get the current vector the transform is at
temp.y = currentHeight; //assign the new value to the Y axis
transform.position = temp; //replace the existing vector with the new one we just modified.

// Always look at the target
transform.LookAt (target);

因此，我们将替换您的

transform.position.y=currentHeight符合

Vector3 temp = transform.position; //Get the current vector the transform is at
temp.y = currentHeight; //assign the new value to the Y axis
transform.position = temp; //replace the existing vector with the new one we just modified.

我认为这仅仅是因为C#处理结构和属性的方式。
您不能直接修改transform.position x和y，而应该创建一个具有所需值的Vector3变量，然后将transform.position分配给它。例如：

 Vector3 newPosition = new Vector3(0, currentHeight, 0);
 transform.position = newPosition;   

那肯定会导致同样的问题？不能修改
y
？我认为需要给它分配一个新对象：
transform.position=newvector3（transform.position.x，currentHeight，transform.position.z）我已经有一段时间没有使用unity了，但我相信这确实有效。需要@Alex_TNT来确认。酷，我想我会检查：）这种混乱是因为
Vector3
是一个可变结构
transform.position
获取结构的副本，因此必须获取副本，对其进行操作，然后再次设置
transform.position
。Unity这样做是出于性能原因，尽管它可能会非常混乱。