yichael_smartbowtv/Assets/BowArrow/Scripts/Game/CrossHairOutBoundChecker.cs

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

/* 检测器-检测游戏射击准心是否出屏幕边界 */
public class CrossHairOutBoundChecker : MonoBehaviour
{
    [SerializeField] GameObject outTip;
    string[] tips = null;
    int tipIndex = -1;

    void Start() {
        tips = new string[]{
            "瞄准方向已超出视野范围，请将弓往右移动！",
            "瞄准方向已超出视野范围，请将弓往左移动！",
            "瞄准方向已超出视野范围，请将弓往下移动！",
            "瞄准方向已超出视野范围，请将弓往上移动！",
        };
    }

    void Update()
    {
        int newTipIndex = -1;
        if (BowCamera.ins && BowCamera.ins.bowCameraFixed != null) {
            newTipIndex = BowCamera.ins.bowCameraFixed.outBoundIndex;
        }
        if (newTipIndex != tipIndex) {
            tipIndex = newTipIndex;
            if (tipIndex >= 0) {
                outTip.GetComponent<Text>().text = tips[tipIndex];
            }
        }
        if (newTipIndex >= 0) {
            if (!outTip.activeSelf) outTip.SetActive(true);
        } else {
            if (outTip.activeSelf) outTip.SetActive(false);
        }
    }
}