Snake.lst

C51 COMPILER V9.52.0.0   SNAKE                                                             03/17/2019 22:08:52 PAGE 1   


C51 COMPILER V9.52.0.0, COMPILATION OF MODULE SNAKE
OBJECT MODULE PLACED IN .\obj\Snake.obj
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE user\Snake.c BROWSE INCDIR(.\os;.\user) DEBUG OBJECTEXTEND PRINT(.\Snake.ls
                    -t) TABS(2) OBJECT(.\obj\Snake.obj)

line level    source

   1          #include <OS.h>
   2          #include <Snake.h>
   3          #include <stdlib.h>
   4          #include <handle.h>
   5          #include "indicator.h"
   6          /*
   7          * map:  20*20
   8          * size: 210*210
   9          */
  10          #define SnakeMaxSize 200
  11          uint8_t food2str[4];
  12          
  13          enum DIR{UP=1,DOWN,LEFT,RIGHT};
  14          
  15          struct PointType{
  16            uint8_t x;
  17            uint8_t y;
  18          };
  19          
  20          
  21          struct SnakeType{
  22            struct PointType body[SnakeMaxSize];
  23            enum DIR Direction;
  24            uint8_t SnakeHead;  //蛇头
  25            uint8_t SnakeTail;  //蛇尾后面的一个空格
  26            uint8_t SnakeSize;
  27          };
  28          
  29          sbit HandleSwitch = P1^3; //开始键
  30          enum{GameReady = 1,GameLoading,Gameing,GameOver} GameStatus = GameReady;  //游戏状态
  31          struct PointType food;  //食物
  32          
  33          /*初始化蛇*/
  34          void SnakeInit(struct SnakeType *Snake)
  35          {
  36   1        Snake->SnakeHead = 3;
  37   1        Snake->SnakeTail = 1;
  38   1        Snake->Direction = RIGHT;
  39   1        Snake->body[1].x = 3;
  40   1        Snake->body[2].x = 4;
  41   1        Snake->body[3].x = 5;
  42   1        Snake->body[1].y = 10;
  43   1        Snake->body[2].y = 10;
  44   1        Snake->body[3].y = 10;
  45   1        Snake->SnakeSize = 3;
  46   1      }
  47          
  48          /*随机获取食物位置，伪随机数*/
  49          void GetFoodRandom(uint8_t x,uint8_t y)
  50          {
  51   1        food.x = (x*3+17)%20;
  52   1        food.y = (y*3+17)%20;
  53   1      }
  54          
C51 COMPILER V9.52.0.0   SNAKE                                                             03/17/2019 22:08:52 PAGE 2   

  55          /*三位数转换为字符串*/
  56          uint8_t* Number2String(uint16_t n)
  57          {
  58   1        food2str[0] = n/100 + '0';
  59   1        food2str[1] = (n%100)/10 + '0';
  60   1        food2str[2] = n%10 + '0';
  61   1        food2str[3] = 0;
  62   1        return food2str;
  63   1      }
  64          
  65          /*显示食物*/
  66          void DisplayFood()
  67          {
  68   1        DisplaySendString("cirs ");
  69   1        DisplaySendString(Number2String(food.x*10+5));
  70   1        DisplaySendString(",");
  71   1        DisplaySendString(Number2String(food.y*10+5));
  72   1        DisplaySendString(",4,YELLOW");
  73   1        DisplaySendEnd();
  74   1      }
  75          
  76          /*显示分数*/
  77          void DisplayScore(uint8_t score)
  78          {
  79   1        DisplaySendString("t0.txt=\" Score:");
  80   1        DisplaySendString(Number2String(score));
  81   1        DisplaySendString("\"");
  82   1        DisplaySendEnd();
  83   1      }
  84          
  85          
  86          /*画蛇的点*/
  87          void DisplaySnakeDot(uint8_t x,uint8_t y,uint8_t color)
  88          {
  89   1        DisplaySendString("fill ");
  90   1        DisplaySendString(Number2String(x*10));
  91   1        DisplaySendString(",");
  92   1        DisplaySendString(Number2String(y*10));
  93   1        DisplaySendString(",10,10,");
  94   1        switch(color)
  95   1        {
  96   2          case 0: DisplaySendString("GREEN");break;
  97   2          case 1: DisplaySendString("BROWN");break;
  98   2          case 2: DisplaySendString("BLACK");break;
  99   2        }
 100   1        DisplaySendEnd();
 101   1      }
 102          
 103          /*  检查生成的食物位置是否合法：不能生成在蛇的身上  */
 104          /*  return  0-合法 1-非法 */
 105          uint8_t CheckFood(struct SnakeType *Snake)
 106          {
 107   1        uint8_t i=Snake->SnakeTail;
 108   1        if (Snake->SnakeTail > Snake->SnakeHead) for(;(i>=Snake->SnakeTail&&i<SnakeMaxSize)||(i<Snake->SnakeHead)
             -;)
 109   1        {
 110   2          if ((food.x==Snake->body[i].x)&&(food.y==Snake->body[i].y)) return 1;
 111   2          i=(i+1)%SnakeMaxSize;
 112   2        }else for (;i<Snake->SnakeHead;)
 113   1        {
 114   2          if ((food.x==Snake->body[i].x)&&(food.y==Snake->body[i].y)) return 1;
 115   2          i++;
C51 COMPILER V9.52.0.0   SNAKE                                                             03/17/2019 22:08:52 PAGE 3   

 116   2        }
 117   1        return 0;
 118   1      }
 119          
 120          /*判断蛇是否吃到了自己*/
 121          uint8_t isEatSelf(struct SnakeType *Snake)
 122          {
 123   1        uint8_t i=Snake->SnakeTail;
 124   1        if (Snake->SnakeTail>Snake->SnakeHead) for(;(i>=Snake->SnakeTail&&i<SnakeMaxSize)||(i<Snake->SnakeHead);)
 125   1        {
 126   2          if ((Snake->body[Snake->SnakeHead].x==Snake->body[i].x)&&(Snake->body[Snake->SnakeHead].y==Snake->body[i
             -].y)) return 1;
 127   2          i=(i+1)%SnakeMaxSize;
 128   2        }else for (;i<Snake->SnakeHead;)
 129   1        {
 130   2          if ((Snake->body[Snake->SnakeHead].x==Snake->body[i].x)&&(Snake->body[Snake->SnakeHead].y==Snake->body[i
             -].y)) return 1;
 131   2          i++;
 132   2        }
 133   1        return 0;
 134   1      }
 135          
 136          /*获取手柄的方向*/
 137          enum DIR GetHandleDIR(enum DIR old)
 138          {
 139   1        uint8_t y=HandleReadX();
 140   1        uint8_t x=HandleReadY();
 141   1        if (x==0xff) return RIGHT;
 142   1        if (x==0x00) return LEFT;
 143   1        if (y==0xff) return DOWN;
 144   1        if (y==0x00) return UP;
 145   1        return old;
 146   1      }
 147          
 148          void UserProcess_Snake()
 149          {
 150   1        struct SnakeType *Snake = (struct SnakeType*)malloc(sizeof(struct SnakeType));
 151   1        enum DIR ReadDir = RIGHT;
 152   1        uint8_t tempx,tempy;
 153   1        
 154   1        while(1)
 155   1        {
 156   2          switch (GameStatus)
 157   2          {
 158   3            case  GameReady://游戏准备画面
 159   3              while(HandleSwitch); //按下开关前等待
 160   3              signal = 1;
 161   3              GameStatus = GameLoading;
 162   3              DisplaySendCommand("page 1"); //切换画面 不需要临界区
 163   3              /*开启第二个进程*/
 164   3              break;
 165   3            case  GameLoading:
 166   3              SnakeInit(Snake); //初始化蛇
 167   3              GetFoodRandom(Snake->body[Snake->SnakeTail].x,Snake->body[Snake->SnakeTail].y); //获取食物随机位置
 168   3              while (CheckFood(Snake)) food.x++;
 169   3              SemaphoreWait(&screen);
 170   3              DisplaySendCommand("fill 0,0,210,210,BLACK");
 171   3              DisplaySendCommand("fill 30,100,30,10,GREEN");  //画蛇
 172   3              DisplaySendCommand("fill 50,100,10,10,BROWN");  //画蛇
 173   3              DisplayFood();                                //画食物
 174   3              DisplayScore(Snake->SnakeSize-3);
 175   3              SemaphoreSignal(&screen);
C51 COMPILER V9.52.0.0   SNAKE                                                             03/17/2019 22:08:52 PAGE 4   

 176   3              GameStatus = Gameing;
 177   3              break;
 178   3            case  Gameing:
 179   3              ReadDir = GetHandleDIR(Snake->Direction);
 180   3              if ((ReadDir==UP)&&(Snake->Direction==DOWN)) ReadDir = DOWN;
 181   3              if ((ReadDir==DOWN)&&(Snake->Direction==UP)) ReadDir = UP;
 182   3              if ((ReadDir==LEFT)&&(Snake->Direction==RIGHT)) ReadDir = RIGHT;
 183   3              if ((ReadDir==RIGHT)&&(Snake->Direction==LEFT)) ReadDir = LEFT;
 184   3              Snake->Direction = ReadDir;
 185   3              tempx = Snake->body[Snake->SnakeHead].x;
 186   3              tempy = Snake->body[Snake->SnakeHead].y;
 187   3              SemaphoreWait(&screen);
 188   3              DisplaySnakeDot(Snake->body[Snake->SnakeHead].x,Snake->body[Snake->SnakeHead].y,0); //画蛇脖子
 189   3              SemaphoreSignal(&screen);
 190   3              Snake->SnakeHead = (Snake->SnakeHead+1)%SnakeMaxSize;
 191   3              switch (Snake->Direction)
 192   3              {
 193   4                case UP:
 194   4                  Snake->body[Snake->SnakeHead].x = tempx;
 195   4                  Snake->body[Snake->SnakeHead].y = tempy - 1;
 196   4                  if (tempy == 0) Snake->body[Snake->SnakeHead].y = 20;
 197   4                  break;
 198   4                case DOWN:
 199   4                  Snake->body[Snake->SnakeHead].x = tempx;
 200   4                  Snake->body[Snake->SnakeHead].y = tempy + 1;
 201   4                  if (tempy == 20) Snake->body[Snake->SnakeHead].y = 0;
 202   4                  break;
 203   4                case LEFT:
 204   4                  Snake->body[Snake->SnakeHead].x = tempx - 1;
 205   4                  Snake->body[Snake->SnakeHead].y = tempy;
 206   4                  if (tempx == 0) Snake->body[Snake->SnakeHead].x = 20;
 207   4                  break;
 208   4                case RIGHT:
 209   4                  Snake->body[Snake->SnakeHead].x = tempx + 1;
 210   4                  Snake->body[Snake->SnakeHead].y = tempy;
 211   4                  if (tempx == 20) Snake->body[Snake->SnakeHead].x = 0;
 212   4                  break;
 213   4              }
 214   3              
 215   3              SemaphoreWait(&screen);
 216   3              DisplaySnakeDot(Snake->body[Snake->SnakeHead].x,Snake->body[Snake->SnakeHead].y,1);//画蛇头
 217   3              DisplaySnakeDot(Snake->body[Snake->SnakeTail].x,Snake->body[Snake->SnakeTail].y,2);//抹去蛇尾巴
 218   3              SemaphoreSignal(&screen);
 219   3              DelayBlock_Proccess(100);
 220   3              //判断是否吃到了实物
 221   3              if ((Snake->body[Snake->SnakeHead].x==food.x)&&(food.y==Snake->body[Snake->SnakeHead].y))
 222   3              {
 223   4                Snake->SnakeSize++;
 224   4                GetFoodRandom(Snake->body[Snake->SnakeTail].x,Snake->body[Snake->SnakeTail].y);
 225   4                while (CheckFood(Snake)) food.x++;
 226   4                SemaphoreWait(&screen);
 227   4                DisplayFood();  //画食物
 228   4                DisplayScore(Snake->SnakeSize-3);
 229   4                SemaphoreSignal(&screen);
 230   4              }else if (isEatSelf(Snake)) //判断是否吃到了自己
 231   3              {
 232   4                GameStatus = GameOver;
 233   4              }else{ //蛇尾元素出队
 234   4                Snake->SnakeTail = (Snake->SnakeTail+1)%SnakeMaxSize;
 235   4              }
 236   3              break;
 237   3            case  GameOver:
C51 COMPILER V9.52.0.0   SNAKE                                                             03/17/2019 22:08:52 PAGE 5   

 238   3              while(HandleSwitch); //按下开关前等待
 239   3              GameStatus = GameLoading;
 240   3              break;
 241   3          }
 242   2        }
 243   1      }
 244          
 245          
 246          
 247          
 248          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =   2074    ----
   CONSTANT SIZE    =    146    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      7      20
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)