在 Unity 中使一个 GameObject 粘到另一个 GameObjects 边框上

发布于 2025-01-09 01:12:49 字数 927 浏览 1 评论 0原文

我使用 Unity3D 和 MRTK 进行 Hololens 2 开发。

正如您在图片中看到的，我获得了一个 Square-Gameobject 和一个 AppBar-Gameobject。 Square 附加了 MRTK BoundsControl，使其可变形。用户可以使用手柄更改Square 的大小和旋转。

每次更改时，用户的 AppBar 都应该粘在 Square 的左边框上。

对象 - 游戏对象的比例为：X: 1、Y: 1、Z: 1。
Square-游戏对象的比例为：X：0.15，y：0.15，Z：0.009。

当我使用手柄缩放 Square 时，仅 Object 的比例发生变化，Square 的比例始终保持不变。

我已经尝试过这段代码，但它不能正常工作：

using UnityEngine;

public class AppBar : MonoBehaviour
{
    public GameObject appBar;
    public GameObject MaterialObject;
    public void MoveAppBar()
    {

        var distance = MaterialObject.transform.localScale.x + MaterialObject.transform.GetChild(0).localScale.x - 1;
        appBar.transform.position = new Vector3(-distance - 0.032f, 0, 0);
    }
}

原文

I'm using Unity3D with MRTK for Hololens 2 development.

As you can see in the picture I gat a Square-Gameobject and a AppBar-Gameobject. The Square hast MRTK BoundsControl attached to it which make it transformable. The user can change the size and rotation of the Square with the handles.

On every change the user does the AppBar should stick to the left border of the Square.

The Object-Gameobject has a scale of: X: 1, Y: 1, Z: 1.
The Square-Gameobject has a scale of: X: 0.15, y: 0.15, Z: 0.009.

When I scale the Square with the handles only the scale of the Object changes the scale of the Square is staying the same all the time.

I already tried this code but it doesn't work properly:

using UnityEngine;

public class AppBar : MonoBehaviour
{
    public GameObject appBar;
    public GameObject MaterialObject;
    public void MoveAppBar()
    {

        var distance = MaterialObject.transform.localScale.x + MaterialObject.transform.GetChild(0).localScale.x - 1;
        appBar.transform.position = new Vector3(-distance - 0.032f, 0, 0);
    }
}

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淡淡の花香 2025-01-16 01:12:49

将一个空对象添加到放大/缩小对象的边缘。它需要位于边缘，以便当主对象被修改时，它将保留在边界上。

将此代码添加到 UI 上的脚本中：

public Transform tr;
public float offset;
private void Update()
{
    Vector3 pos = tr.position;
    pos.x += offset;
    transform.position = pos;
}

将空对象拖到 tr 槽并指定一个偏移值以指示您希望 UI 与该空对象保持多远。

现在，您应该能够缩放主对象，并且 UI 将保持与边缘的相同距离，而不会进一步移动或进入主对象内部。

更好的方法是通过事件/监听器监听主要对象的修改，这样即使什么也没有发生，你也不会运行更新。

Add an empty object to the edge of the object that gets scale up/down. It needs to be on the edge so that when the main object gets modified, it will remain on the border.

Add this code to a script on the UI:

public Transform tr;
public float offset;
private void Update()
{
    Vector3 pos = tr.position;
    pos.x += offset;
    transform.position = pos;
}

Drag the empty object to the tr slot and give a value to offset to indicate how far from that empty object you want the UI to remain.

Now you should be able to scale the main object and the UI will stick to that same distance from the edge without getting further or inside the main object.

A better approach would be to listen to the main object modification via event/listener so you don't run the update even when nothing happens.

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