314 lines
9.7 KiB
C#
314 lines
9.7 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.EventSystems;
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using UnityEngine.UI;
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namespace Toolset.UI
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{
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/// <summary>
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/// 轮播图菜单
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/// </summary>
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public class CarouselMenu : MonoBehaviour/*, IBeginDragHandler, IDragHandler, IEndDragHandler*/, IPointerClickHandler
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{
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public float width = 1000;
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public float maxScale = 1;
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public float startValue = 0.1f;
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public float addValue = 0.4f;
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public float minValue = 0.1f;
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public float maxValue = 0.9f;
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public float rollSpeed = 1;//旋转速度
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public AnimationCurve positionCurve;
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public AnimationCurve scaleCurve;//缩放曲线
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public AnimationCurve alphaCurve;
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public Action<CarouselItem> MoveEndAction;//打印名字的事件
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private RectTransform rect;
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[SerializeField]private List<CarouselItem> itemList = new List<CarouselItem>();
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[SerializeField] private List<CarouselItem> itemFrontList = new List<CarouselItem>();
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[SerializeField] private List<CarouselItem> itemBackList = new List<CarouselItem>();
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private bool isRoll = false;//是否旋转
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public CarouselItem current;//记录子物体V值小于1的
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private Vector2 startPoint;
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private Vector2 addVect;
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private void Start()
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{
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Refresh();
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MoveEndAction += SelectItem;
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}
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private void Update()
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{
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if (isRoll)
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{
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currentV = Time.deltaTime * rollSpeed * vk;//确定转动方向
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vt = vTotal + currentV;
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if (vk > 0 && vt >= addV) { isRoll = false; currentV = addV - vTotal; }
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if (vk < 0 && vt <= addV) { isRoll = false; currentV = addV - vTotal; }
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for (int i = 0; i < itemList.Count; i++)
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{
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itemList[i].CalculateTrans(currentV);
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if (itemList[i].v - 0.5f < 0.05f)
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{
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current = itemList[i];
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}
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}
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Check(currentV);
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vTotal = vt;
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if (!isRoll)
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{
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MoveEndAction?.Invoke(current);
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}
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}
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}
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public void Refresh()
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{
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itemList = new List<CarouselItem>();
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itemFrontList = new List<CarouselItem>();
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itemBackList = new List<CarouselItem>();
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int num = 0;
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rect = GetComponent<RectTransform>();//父物体RectTransform
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for (int i = 0; i < rect.childCount; i++)
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{
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Transform trans = rect.GetChild(i);//子物体Transform
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if (trans.gameObject.activeSelf)
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{
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CarouselItem item = trans.GetComponent<CarouselItem>();//子物体CarouselItem脚本
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item.v = 0;
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if (item != null)
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{
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item.transform.GetChild(0).GetComponent<Text>().text = i.ToString();//命名
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itemList.Add(item);//记录脚本添加列表
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item.Init(this);//子物体初始化
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//item.CalculateTrans(startValue + i * addValue);
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item.CalculateTrans(startValue + num * addValue);
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if (item.v - 0.5f < 0.05f)
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{
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//current = itemList[i];
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current = itemList[num];
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}
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}
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num++;
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}
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}
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//if (rect.childCount < 5)
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if (num < 5)
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{
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maxValue = startValue + 4 * addValue;
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}
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else
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{
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//maxValue = startValue + (rect.childCount - 1) * addValue;
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maxValue = startValue + (num - 1) * addValue;
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}
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}
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/// <summary>
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/// 获取每个菜单的显隐
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/// </summary>
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/// <param name="v"></param>
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/// <returns></returns>
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public float GetAlpha(float v)
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{
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return alphaCurve.Evaluate(v);
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}
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/// <summary>
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/// 获取每个菜单的位置
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/// </summary>
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/// <param name="v"></param>
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/// <returns></returns>
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public float GetPosition(float v)
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{
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return positionCurve.Evaluate(v) * width;
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}
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/// <summary>
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/// 获取每个菜单的缩放
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/// </summary>
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/// <param name="v"></param>
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/// <returns></returns>
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public float GetScale(float v)
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{
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return scaleCurve.Evaluate(v) * maxScale;
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}
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///// <summary>
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///// 开始拖拽触发
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///// </summary>
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///// <param name="eventData"></param>
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//public void OnBeginDrag(PointerEventData eventData)
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//{
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// startPoint = eventData.position;
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// addVect = Vector2.zero;
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// isRoll = false;
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//}
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///// <summary>
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///// 拖动中触发
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///// </summary>
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///// <param name="eventData"></param>
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//public void OnDrag(PointerEventData eventData)
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//{
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// addVect = eventData.position - startPoint;
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// float v = eventData.delta.x * 1.0f / width;
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// for (int i = 0; i < itemList.Count; i++)
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// {
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// itemList[i].CalculateTrans(v);
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// }
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// Check(v);
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//}
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///// <summary>
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///// 停止拖动触发
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///// </summary>
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///// <param name="eventData"></param>
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//public void OnEndDrag(PointerEventData eventData)
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//{
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// float k = 0, vTemp;
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// for (int i = 0; i < itemList.Count; i++)
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// {
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// if (itemList[i].v >= minValue)
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// {
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// vTemp = (itemList[i].v - minValue) % addValue;
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// if (addVect.x > 0)
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// {
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// k = addValue - vTemp;
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// }
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// else
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// {
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// k = vTemp * -1;
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// }
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// break;
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// }
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// }
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// addVect = Vector2.zero;
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// AnimToEnd(k);
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//}
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/// <summary>
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/// 点击UI接口
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/// </summary>
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/// <param name="eventData"></param>
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public void OnPointerClick(PointerEventData eventData)
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{
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if (addVect.sqrMagnitude <= 1)
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{
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CarouselItem item = eventData.pointerPressRaycast.gameObject.GetComponent<CarouselItem>();//记录子物体CarouselItem脚本
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if (item != null)
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{
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float k = item.v;
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k = 0.5f - k;
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AnimToEnd(k);
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}
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}
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}
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private float addV = 0, vk = 0, currentV = 0, vTotal = 0, vt = 0;
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/// <summary>
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/// 大于0左，小于0右
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/// </summary>
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/// <param name="k"></param>
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private void AnimToEnd(float k)
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{
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addV = k;
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if (k > 0) vk = 1;
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else if (k < 0) vk = -1;
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else return;
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vTotal = 0;
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isRoll = true;
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}
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private void Check(float _v)
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{
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if (_v < 0)//向左滑动
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{
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for (int i = 0; i < itemList.Count; i++)
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{
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if (itemList[i].v < (minValue - addValue / 2))
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{
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itemBackList.Add(itemList[i]);
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}
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}
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if (itemBackList.Count > 0)
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{
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for (int i = 0; i < itemBackList.Count; i++)
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{
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itemBackList[i].v = itemList[itemList.Count - 1].v + addValue;
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itemList.Remove(itemBackList[i]);
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itemList.Add(itemBackList[i]);
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}
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itemBackList.Clear();
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}
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}
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else if (_v > 0)//向右滑动
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{
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for (int i = itemList.Count - 1; i > 0; i--)
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{
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if (itemList[i].v > maxValue)
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{
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itemFrontList.Add(itemList[i]);
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}
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}
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if (itemFrontList.Count > 0)
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{
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for (int i = 0; i < itemFrontList.Count; i++)
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{
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itemFrontList[i].v = itemList[0].v - addValue;
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itemList.Remove(itemFrontList[i]);
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itemList.Insert(0, itemFrontList[i]);
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}
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itemFrontList.Clear();
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}
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}
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}
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public void SelectItem(CarouselItem item)
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{
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print(item.name);
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}
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void OnDestroy()
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{
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MoveEndAction -= SelectItem;
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}
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public void Btn_Left(Button button)
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{
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StartCoroutine(delayed_Left(button));
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}
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IEnumerator delayed_Left(Button button)
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{
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button.interactable = false;
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AnimToEnd(+0.2f);
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yield return new WaitForSeconds(0.2f);
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button.interactable = true;
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}
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public void Btn_Right(Button button)
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{
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StartCoroutine(delayed_Right(button));
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}
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IEnumerator delayed_Right(Button button)
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{
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button.interactable = false;
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AnimToEnd(-0.2f);
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yield return new WaitForSeconds(0.2f);
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button.interactable = true;
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}
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}
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}
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