132 lines
3.7 KiB
C#
132 lines
3.7 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 sceneContorl : MonoBehaviour
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{
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public Camera m_cam;
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public GameObject mainScene;
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private bool m_fingerDown = false;
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// 手指的起始位置
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private Vector2 m_oneFingerDragStartPos;
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// UI元素的 RectTransform
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private RectTransform mainSceneRectTransform;
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// 灵敏度系数
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private float sensitivity = 0.5f; // 可以根据需要调整此值
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// 滑动限制的最小值和最大值
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public float minX = -500f; // 最小x值
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public float maxX = 500f; // 最大x值
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[Header("定义目标位置")]
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public float[] targetPositions = new float[] { 0f, -2100f, -3760f, -5350f };
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// 引用 mainBTN 脚本
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public mainBTN mainBtnScript;
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// Start is called before the first frame update
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void Start()
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{
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mainSceneRectTransform = mainScene.GetComponent<RectTransform>();
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}
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// Update is called once per frame
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void Update()
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{
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#if UNITY_EDITOR || UNITY_STANDALONE
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// 桌面端：鼠标按下时
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if (Input.GetMouseButtonDown(0))
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{
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m_fingerDown = true;
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m_oneFingerDragStartPos = Input.mousePosition; // 获取鼠标按下的起始位置
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}
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// 桌面端：鼠标松开时
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if (Input.GetMouseButtonUp(0))
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{
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m_fingerDown = false;
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}
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// 处理鼠标拖动
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if (m_fingerDown)
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{
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HandleFingerDragMove(Input.mousePosition);
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}
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#else
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// 移动端：单指滑动
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if (Input.touchCount == 1)
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{
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Touch touch = Input.touches[0];
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// 手指刚触碰屏幕时
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if (touch.phase == TouchPhase.Began)
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{
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m_fingerDown = true;
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m_oneFingerDragStartPos = touch.position; // 获取手指按下的起始位置
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}
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// 手指在屏幕上滑动时
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else if (touch.phase == TouchPhase.Moved)
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{
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HandleFingerDragMove(touch.position); // 处理手指拖动
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}
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}
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else
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{
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m_fingerDown = false;
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}
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#endif
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}
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/// <summary>
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/// 单指滑动
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/// </summary>
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private void HandleFingerDragMove(Vector2 fingerPos)
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{
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// 计算当前帧的滑动增量（交换顺序，保证滑动方向一致）
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Vector3 moveDelta = fingerPos - m_oneFingerDragStartPos; // 当前触摸位置 - 起始位置
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Vector3 newPos = mainSceneRectTransform.anchoredPosition;
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// 根据滑动增量计算新的x轴位置，并限制在指定范围内
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newPos.x = newPos.x + (moveDelta.x * sensitivity);
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// 限制x轴位置在 minX 和 maxX 之间
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newPos.x = Mathf.Clamp(newPos.x, minX, maxX);
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mainSceneRectTransform.anchoredPosition = newPos; // 设置新的锚点位置
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// 更新起始位置，用于计算下一帧的增量
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m_oneFingerDragStartPos = fingerPos;
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}
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/// <summary>
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/// 计算当前位置与目标位置数组中哪个位置最接近，并返回对应的目标位置值.
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/// </summary>
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/// <param name="currentX">当前X坐标</param>
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/// <returns>返回距离最近的目标位置值</returns>
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private float GetClosestTargetValue(float currentX)
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{
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float closestValue = targetPositions[0]; // 默认目标位置为数组的第一个值
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float minDistance = Mathf.Abs(currentX - targetPositions[0]); // 初始最小距离为第一个目标的距离
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// 遍历 targetPositions 数组，计算与当前位置的距离
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for (int i = 1; i < targetPositions.Length; i++)
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{
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float distance = Mathf.Abs(currentX - targetPositions[i]); // 计算当前位置与目标的绝对距离
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if (distance < minDistance) // 如果当前距离比最小距离小
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{
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closestValue = targetPositions[i]; // 更新最近的目标位置
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minDistance = distance; // 更新最小距离
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}
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}
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return closestValue; // 返回最近目标的值
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}
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}
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