📄 snake.lst
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C51 COMPILER V8.01 SNAKE 07/30/2008 23:29:10 PAGE 1
C51 COMPILER V8.01, COMPILATION OF MODULE SNAKE
OBJECT MODULE PLACED IN SNAKE.OBJ
COMPILER INVOKED BY: D:\Keil\C51\BIN\C51.EXE SNAKE.C BROWSE DEBUG OBJECTEXTEND
line level source
1 #include "w77e58.h"
2 #include "vt100.h"
3 #include "init.h"
4 #include "stdio.h"
5 #include "stdlib.h"
6
7 typedef struct kk{
8 unsigned char x;
9 unsigned char y;
10 }SnakeType;
11
12 xdata struct kk snake[400];
13
14
15 #define UP 0xf0
16 #define DOWN 0x0f
17 //-----------------------------------------------------------------------------------
18 #define LEFT 0x00
19 #define RIGHT 0xff
20
21 #define L_SHEET (2*2 +1)
22 #define R_SHEET (13*2+1)
23
24 #define T_SHEET 5
25 #define B_SHEET 16
26 //-----------------------------------------------------------------------------------
27 void init(void);
28 void delay(unsigned int);
29 void put_block(char,char);
30 void hide_block(char,char);
31 bit flash_snake(unsigned char);
32 void putch(char);
33 bit kbhit(void);
34 char getch(void);
35 void clr_wchdog(void){}
36 void put_bug(void);
37 void init_snake(void);
38 void putstr(char xdata *);
39 void flash_data(void);
40 void type_kbd(char code*);
41 //-----------------------------------------------------------------------------------
42 data char GameScore;
43 data char HighScore;
44 data char direct;
45 data char SnakeLen;
46
47 xdata char print_buf[20];
48
49 xdata int Level;
50 xdata int bug_x,bug_y;
51
52 bit TimerEnd;
53 bit GameOver;
54 bit GameStart;
55 bit blink_flag0;
C51 COMPILER V8.01 SNAKE 07/30/2008 23:29:10 PAGE 2
56 bit blink_flag1;
57 bit flashed;
58 bit type_flag;
59
60 //-----------------------------------------------------------------------------------
61 void main()
62 {
63 1 data int ch,ch1;
64 1 bit scoreadd;
65 1
66 1 init();
67 1 put_bug();
68 1 while(1)
69 1 {
70 2 REN_1=1;
71 2 if(kbhit())
72 2 {
73 3 ch1=ch;
74 3 ch=getch();
75 3 ch=ch&(0x20^0xff);
76 3 switch(ch)
77 3 {
78 4 case 'W':
79 4 ch=UP;
80 4 if(~ch == ch1) ch=ch1;
81 4 else {TimerEnd=1;scoreadd=1;}
82 4 break;
83 4 case 'S':
84 4 ch=DOWN;
85 4 if(~ch == ch1) ch=ch1;
86 4 else {TimerEnd=1;scoreadd=1;}
87 4 break;
88 4 case 'A':
89 4 ch=LEFT;
90 4 if(~ch == ch1) ch=ch1;
91 4 else {TimerEnd=1;scoreadd=1;}
92 4 break;
93 4 case 'D':
94 4 ch=RIGHT;
95 4 if(~ch == ch1) ch=ch1;
96 4 else {TimerEnd=1;scoreadd=1;}
97 4 break;
98 4 case '\r':
99 4 if(GameOver)
100 4 {
101 5 init_snake();
102 5 GameOver=0;
103 5 GameScore=0;
104 5 //GameStart=0;
105 5 }
106 4 if(!GameStart)
107 4 {
108 5 del_line(4);
109 5 gotoxy(L_SHEET,4);
110 5 fputstr("Playing game....");
111 5 del_line(24);
112 5 gotoxy(L_SHEET,24);
113 5 fputstr("Option| UP(&W) DOWN(&S) LEFT(&A) RIGHT(D) &PAUSE");
114 5 }
115 4 GameStart=1;ch=1;
116 4 break;
117 4 case 'P':
C51 COMPILER V8.01 SNAKE 07/30/2008 23:29:10 PAGE 3
118 4 if(!GameStart) break;
119 4 while(!kbhit())
120 4 {
121 5 gotoxy(L_SHEET,4);
122 5 type_kbd("Game pause, any key to continue...");
123 5 del_line(4);
124 5 }
125 4 gotoxy(L_SHEET,4);
126 4 fputstr("Playing game....");
127 4 break;
128 4 case 'N':
129 4 if(!GameStart && Level>0) Level--;
130 4 flash_data();
131 4 ch=1;
132 4 break;
133 4 case 'U':
134 4 if(!GameStart && Level<16) Level++;
135 4 flash_data();
136 4 default:
137 4 ch=1;
138 4 }
139 3 }
140 2 if(!GameStart)
141 2 {
142 3 del_line(4);
143 3 gotoxy(L_SHEET,4);
144 3 if(GameOver) type_kbd("Game Over,");
145 3 type_kbd("Press Enter to start ");
146 3 }
147 2 if(!GameOver && GameStart)
148 2 {
149 3 if(blink_flag0)
150 3 {
151 4 hide_block(bug_x,bug_y);
152 4 blink_flag0=0;
153 4 }
154 3 if(blink_flag1)
155 3 {
156 4 put_block(bug_x,bug_y);
157 4 blink_flag1=0;
158 4 }
159 3 }
160 2
161 2 if( TimerEnd && GameStart && !GameOver)
162 2 {
163 3 TimerEnd=0;
164 3 if(scoreadd)
165 3 {
166 4 scoreadd=0;
167 4 GameScore += (20+Level*2);
168 4 }
169 3 if(!flash_snake(ch))
170 3 {
171 4 if(GameScore>HighScore) HighScore=GameScore;
172 4 GameScore=0;
173 4 GameOver=1;
174 4 GameStart=0;
175 4 hide_block(bug_x,bug_y);
176 4 del_line(24);
177 4 gotoxy(L_SHEET,24);
178 4 fputstr("Option| Level &UP/DOW&N");
179 4 }
C51 COMPILER V8.01 SNAKE 07/30/2008 23:29:10 PAGE 4
180 3 flash_data();
181 3 }
182 2 }
183 1 }
184 //-----------------------------------------------------------------------------------
185 void time_int(void) interrupt 1
186 {
187 1 static int tcc;
188 1
189 1 TH0=0x80;
190 1 if((tcc&0x03)==0) blink_flag0=1;
191 1 if((tcc&0x03)==2) blink_flag1=1;
192 1
193 1 if( ++tcc >= (16-Level+4) )
194 1 {
195 2 tcc=0;
196 2 TimerEnd=!flashed;
197 2 flashed=0;
198 2 }
199 1 if(type_flag ) TimerEnd=1;
200 1 }
201 //-----------------------------------------------------------------------------------
202 void init(void)
203 {
204 1 char i;
205 1 char xdata*xptr;
206 1
207 1 EA=0;
208 1 use_inter_SRAM;
209 1 xptr=(char xdata*)0x400;
210 1 while(xptr) *xptr--=0;
211 1 timer0_16bit;
212 1 timer0_start;
213 1 ET0=1;
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