66 lines
2.2 KiB
C#
66 lines
2.2 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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public class SlideInPanelUI : MonoBehaviour
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{
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public AnimationCurve curve = new AnimationCurve(new Keyframe(0, 0), new Keyframe(1, 1)); // 动画曲线
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private RectTransform rectTransform; // 目标面板的 RectTransform
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public float animationTime = 2f; // 动画持续时间
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public bool isFromLeft = true; // 是否从左侧移动进来，false 则从右侧移动进来
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public float offscreenDistance = 1.2f; // UI 元素开始时在屏幕外的距离比例，1表示完全在画布外，>1可以让其更远
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private Vector3 startPos; // 动画开始位置
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private Vector3 endPos; // 动画结束位置
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private Vector3 ChuShi;
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void Awake()
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{
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ChuShi = GetComponent<RectTransform>().localPosition;
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}
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void OnEnable()
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{
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rectTransform = GetComponent<RectTransform>();
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rectTransform.localPosition = ChuShi;
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// 获取 Canvas 的宽度和高度
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float canvasWidth = rectTransform.rect.width;
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// 根据比例设置初始位置
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if (isFromLeft)
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{
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startPos = new Vector3(-canvasWidth * offscreenDistance, rectTransform.localPosition.y, rectTransform.localPosition.z); // 屏幕左外侧
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}
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else
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{
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startPos = new Vector3(canvasWidth * offscreenDistance, rectTransform.localPosition.y, rectTransform.localPosition.z); // 屏幕右外侧
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}
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endPos = rectTransform.localPosition; // 最终位置为当前面板位置
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rectTransform.localPosition = startPos; // 初始位置设置为外部
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// 启动动画
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StartCoroutine(SlideIn());
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}
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IEnumerator SlideIn()
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{
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float time = 0f;
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while (time < animationTime)
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{
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// 计算动画的插值，归一化时间
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time += Time.deltaTime*2f;
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float t = time / animationTime;
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// 根据动画曲线计算当前位置
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rectTransform.localPosition = Vector3.Lerp(startPos, endPos, curve.Evaluate(t));
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yield return null;
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}
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// 最终确保位置准确
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rectTransform.localPosition = endPos;
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}
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}
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