-
-
Save akof1314/430f62b1770c882268bc to your computer and use it in GitHub Desktop.
uGUIで3D空間のオブジェクト上に追従するHUD制御用コンポーネント
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
using UnityEngine; | |
/// <summary> | |
/// uGUIで3D空間のオブジェクト上に追従するHUD制御用コンポーネント | |
/// </summary> | |
public class HudControl : MonoBehaviour | |
{ | |
public Transform targetTrans; | |
public Vector3 offset = Vector3.zero; | |
RectTransform myRectTrans; | |
RectTransform parentRectTrans; | |
Camera uiCamera; | |
void Awake () | |
{ | |
myRectTrans = GetComponent<RectTransform>(); | |
parentRectTrans = (RectTransform) myRectTrans.parent; | |
var canvasArr = GetComponentsInParent<Canvas>(); | |
for (int i = 0; i < canvasArr.Length; i++) { | |
if (canvasArr[i].isRootCanvas) { | |
uiCamera = canvasArr[i].worldCamera; | |
} | |
} | |
} | |
void Update () | |
{ | |
if (targetTrans != null && myRectTrans != null && parentRectTrans != null && uiCamera != null) { | |
UpdateUiLocalPosFromTargetPos(); | |
} | |
} | |
void UpdateUiLocalPosFromTargetPos () | |
{ | |
var screenPos = Camera.main.WorldToScreenPoint(targetTrans.position + offset); | |
var localPos = Vector2.zero; | |
RectTransformUtility.ScreenPointToLocalPointInRectangle(parentRectTrans, screenPos, uiCamera, out localPos); | |
myRectTrans.localPosition = localPos; | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment