#include "menu.h"
#include "display.h"
#include "delay.h"
#include "draw.h"
#include <stdio.h>
#include <stdlib.h>
Menu M_STARTUP;
Menu M_MAINMENU;//主菜单
Menu M_PLAYMODE1; //俄罗斯方块




Menu* NOW; //当前菜单指针
Menu* LAST = NULL; //上一个状态的菜单

enum OPR opr = idle;	
static unsigned char local[10] = {0};


//初始菜单
void m_startup(struct _menu* this)
{


  if(LAST != &M_STARTUP)
    {
      LAST = &M_STARTUP;

      drawNAME(); 		 		//绘制名字
      delay(1000);
      drawNUMBER(); 			//绘制学号
    }

  if(opr == confirm)
    {
      opr = idle;
      NOW = this->n;				//转向下一菜单
      clear();
    }

}

void m_mainmenu(struct _menu* this)
{
  if(LAST != &M_MAINMENU)
    {
      local[0] = 0;
      LAST = &M_MAINMENU;
      drawMAINMENU(local[0]);
    }

  if(opr == right)
    {
      local[0]++;
      if(local[0] > 3)
        local[0] = 3;
    }
  if(opr == left)
    {
      if(local[0] != 0)
        local[0]--;
    }
  if(opr != idle)
    {
      opr = idle;
      drawMAINMENU(local[0]);
    }
}


void menuInit()
{
  M_STARTUP.n = &M_MAINMENU;
  M_STARTUP.f = m_startup;

  M_MAINMENU.f = m_mainmenu;
  NOW = &M_STARTUP;
}