using System.Collections.Generic;
using UnityEngine;
 
public class Page : MonoBehaviour {
  public List<string> Tips = new List<string>();
  public Texture2D DetailImg1;
  public Texture2D DetailImg2;
 
  private int pageCount = 0;//當前記錄所需頁數(shù)
  private static int currentPage = 1;//當前頁碼
 
  void OnGUI() {
    pageCount = Mathf.CeilToInt(Tips.Count / 8.0f);//計算當前的頁碼總數(shù)
    int m_count = 0;//計算當前頁的記錄數(shù)
    if (currentPage != pageCount)//判斷是否是最后一頁，若不是則每頁繪制8條記錄
    {
      m_count = 8;
    }
    else {
      if (Mathf.CeilToInt((Tips.Count + 1) / 8.0f) > pageCount)//判斷最后一頁是否有8條記錄
      {
        m_count = 8;
      }
      else
      {
        m_count = Tips.Count % 8;//計算最后一頁的記錄數(shù)
      }
    }
 
    for (int i = 0; i < m_count; i++)
    {
      if (i % 2 == 0)
      {
        GUI.DrawTexture(new Rect(268, 253 + i * 36, 487, 36), DetailImg1);
      }
      else
      {
        GUI.DrawTexture(new Rect(268, 253 + i * 36, 487, 36), DetailImg2);
      }
      GUI.Label(new Rect(310, 253 + i * 36, 300, 36), Tips[(currentPage - 1) * 8 + i]);
    }
    //超過一頁內(nèi)容時，顯示頁碼跳轉(zhuǎn)
    if (pageCount > 1) {
      float temp = Screen.width / 2 - pageCount / 2 * 20;
      for (int i = 1; i <= pageCount; ++i) {
        //更改按鈕樣式
        if (currentPage == i)
        {
          GUI.backgroundColor = Color.red;
        }
        else
        {
          GUI.backgroundColor = Color.white;
        }
        //繪制按鈕
        if (GUI.Button(new Rect(temp + 20 * i, 600, 20, 20), i.ToString())) {
          currentPage = i;//更改當前選中的頁
        }
      }
    }
  }
}