using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.UI;
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using System;
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/// <summary>
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/// 带有+-按钮控制数量显示和回调
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/// </summary>
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public class CountControler : MonoBehaviour
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{
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[SerializeField] Text countText;
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[SerializeField] LongPressButton addBtn;
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[SerializeField] LongPressButton decBtn;
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int count; //当前数量
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int maxCount; //最大数量
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string format;
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Action<int> OnChangeEvent;
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Func<int, bool> CanAddEvent;
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Func<int, bool> CanDecEvent;
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void Start()
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{
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addBtn.AddListener(() =>
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{
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if (CanAddEvent == null || !CanAddEvent(count))
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{
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return;
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}
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count++;
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Refresh();
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});
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addBtn.onPress.AddListener(() =>
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{
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if (CanAddEvent == null || !CanAddEvent(count))
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{
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return;
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}
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count++;
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Refresh();
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});
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decBtn.AddListener(() =>
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{
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if (CanDecEvent == null || !CanDecEvent(count))
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{
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return;
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}
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count--;
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Refresh();
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});
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decBtn.onPress.AddListener(() =>
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{
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if (CanDecEvent == null || !CanDecEvent(count))
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{
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return;
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}
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count--;
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Refresh();
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});
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}
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public void Init(Action<int> _OnChangeEvent, int _maxCount, int _count = 1,
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Func<int, bool> _CanAddEvent = null, Func<int, bool> _CanDecEvent = null, string _format="{0}/{1}")
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{
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count = _count;
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maxCount = _maxCount;
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OnChangeEvent = _OnChangeEvent;
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CanAddEvent = _CanAddEvent;
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CanDecEvent = _CanDecEvent;
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format = _format;
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Refresh();
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}
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void Refresh()
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{
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if (count >= maxCount)
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{
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count = maxCount;
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addBtn.interactable = false;
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addBtn.SetColorful(null, false);
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}
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else
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{
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addBtn.interactable = true;
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addBtn.SetColorful(null, true);
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}
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if (count <= 0)
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{
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count = 0;
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decBtn.interactable = false;
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decBtn.SetColorful(null, false);
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}
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else
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{
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decBtn.interactable = true;
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decBtn.SetColorful(null, true);
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}
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countText.text = string.Format(format, count, maxCount);
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OnChangeEvent?.Invoke(count);
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}
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}
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