初試linux編譯（ubuntu+vim）+玩轉智慧蛇
阿新 • • 發佈：2018-12-26
一.初試linux編譯（ubuntu+vim）
步驟：
①下載vmware15+ubuntu桌面版映像
②安裝ubuntu
③下載vim+gcc
在ubuntu終端輸入：
sudo apt-get install vim-gtk
sudo apt-get install gcc
④安裝完畢後進行編譯測試
1）新建helloworld.c
vim helloworld.c
2）進入介面按 i 即可輸入程式碼
3）按ESC再按ZZ（大寫）即可儲存並退出
4）再在終端輸入以下程式碼進行編譯
gcc helloworld.c
5）輸入以下程式碼執行
./a.out
二.執行sin-demo（一個好玩的正弦函式動態展示）
三.簡單貪吃蛇(字元版)——不可使用getch（）和清屏等操作
①程式頭部(生成初始地圖 禮物 蛇)
程式實現思想已經在我的註釋裡面啦~~
我想大家應該能很快理解的
/*
snake_move.c
2018.11.30
Created by sysu-18342026
Use 'w'(up),'s'(down),'a'(left),'d'(right) to move and eat the gold.
Be careful not to hit yourseld as well as the wall(*)!
Happy playing!
*/ ②讓蛇動起來
先參考TA的虛擬碼如下
再簡單地轉成c語言（實際上磕磕絆絆弄了好久，哭了~~）
/*
snake_eat.c
2018.11.30
Created by sysu-18342026
Use 'w'(up),'s'(down),'a'(left),'d'(right) to move and eat the gold.
Be careful not to hit yourseld as well as the wall(*)!
Happy playing!
*/
int main() {
output(); //output the initial map and snake.
creatrandomfood(); //output the random food.
char direction;
int flag=1;
while (flag==1) {
scanf(" %c", &direction); //input the moving direction
snakemove(); //use 'w'(up),'s'(down),'a'(left),'d'(right) and 'Enter' to move.
if (direction == 'w') {
snake_y[0] -= 1;
map[snake_y[0]][snake_x[0]] = SNAKE_HEAD;
}
if (direction == 's') {
snake_y[0] += 1;
map[snake_y[0]][snake_x[0]] = SNAKE_HEAD;
}
if (direction == 'a') {
snake_x[0] -= 1;
map[snake_y[0]][snake_x[0]] = SNAKE_HEAD;
}
if (direction == 'd') {
snake_x[0] += 1;
map[snake_y[0]][snake_x[0]] = SNAKE_HEAD;
}
if (snake_x[0] == food_x && snake_y[0] == food_y) {
creatrandomfood();
snake_length++;
snake_x[snake_length - 1] = snake_x[snake_length - 2];
snake_y[snake_length - 1] = snake_y[snake_length - 2];
map[snake_y[snake_length - 1]][snake_x[snake_length - 1]] = SNAKE_BODY;
}
if (gameover()!=1) { //When the snake hits itself or hits the wall,
//the game will be over.
printf("GAMEOVER!\n\nTHANKS FOR PLAYING!\n");
flag=0;
}
else {
output();
}
}
return 0;
}
//output the initial map and snake.
void output() {
int i,j;
for (i = 0; i <= 11; i++) {
for (j = 0; j <= 11; j++) {
printf("%c", map[i][j]);
}
printf("\n");
}
}
//output the random food.
void creatrandomfood() {
srand((unsigned)(time(NULL)));
food_x = rand() % 7;
food_y = rand() % 7;
while (map[food_y][food_x] != BLANK_CELL) {
food_x = rand() % 7;
food_y = rand() % 7;
}
map[food_y][food_x] = SNAKE_FOOD ;
}
//use 'w'(up),'s'(down),'a'(left),'d'(right) and 'Enter' to move.
void snakemove() {
int i;
map[snake_y[snake_length - 1]][snake_x[snake_length - 1]] = BLANK_CELL;
for (i = snake_length - 1; i > 0; i--) {
snake_x[i] = snake_x[i - 1];
snake_y[i] = snake_y[i - 1];
map[snake_y[i]][snake_x[i]] = SNAKE_BODY;
}
}
//When the snake hits itself or hits the wall,the game will be over.
int gameover() {
int i;
if (snake_x[0] == SNAKE_MAX_LENGTH || snake_x[0] == 0) {
return 0;
}
if (snake_y[0] == SNAKE_MAX_LENGTH || snake_y[0] == 0) {
return 0;
}
for (i = 1; i < snake_length; i++) {
if (snake_x[0] == snake_x[i] && snake_y[0] == snake_y[i]) {
return 0;
}
}
return 1;
}
③簡單的貪吃蛇的效果圖（由於不能用getch（）函式，所以比較簡陋= =）
④在ubuntu內執行效果圖（感覺linux中執行得流暢很多啊！！！）
⑤用kbhit（）函式進一步完善（醜陋的）貪吃蛇——不需要自己按回車了！！
注：需要在linux執行才行
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#define SNAKE_MAX_LENGTH 10
#define SNAKE_HEAD 'H'
#define SNAKE_BODY 'X'
#define BLANK_CELL ' '
#define SNAKE_FOOD '$'
#define WALL_CELL '*'
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#include <termios.h>
#include <unistd.h>
//output the initial map,food and snake.
void output();
void creatrandomfood();
//use 'w'(up),'s'(down),'a'(left),'d'(right) and 'Enter' to move.
void snakemove();
//When the snake hits itself or hits the wall,the game will be over.
int gameover();
static struct termios ori_attr, cur_attr;
static __inline
int tty_reset(void)
{
if (tcsetattr(STDIN_FILENO, TCSANOW, &ori_attr) != 0)
return -1;
return 0;
}
static __inline
int tty_set(void)
{
if ( tcgetattr(STDIN_FILENO, &ori_attr) )
return -1;
memcpy(&cur_attr, &ori_attr, sizeof(cur_attr) );
cur_attr.c_lflag &= ~ICANON;
// cur_attr.c_lflag |= ECHO;
cur_attr.c_lflag &= ~ECHO;
cur_attr.c_cc[VMIN] = 1;
cur_attr.c_cc[VTIME] = 0;
if (tcsetattr(STDIN_FILENO, TCSANOW, &cur_attr) != 0)
return -1;
return 0;
}
static __inline
int kbhit(void)
{
fd_set rfds;
struct timeval tv;
int retval;
/* Watch stdin (fd 0) to see when it has input. */
FD_ZERO(&rfds);
FD_SET(0, &rfds);
/* Wait up to five seconds. */
tv.tv_sec = 0;
tv.tv_usec = 0;
retval = select(1, &rfds, NULL, NULL, &tv);
/* Don't rely on the value of tv now! */
if (retval == -1) {
perror("select()");
return 0;
} else if (retval)
return 1;
/* FD_ISSET(0, &rfds) will be true. */
else
return 0;
return 0;
}
//將你的 snake 程式碼放在這裡
char map[12][12] = {
"***********",
"*XXXXH *",
"* *",
"* *",
"* *",
"* *",
"* *",
"* *",
"* *",
"* *",
"***********",
};
//the initial position and length
int snake_length = 5;
int snake_x[SNAKE_MAX_LENGTH] = {5, 4, 3, 2, 1};
int snake_y[SNAKE_MAX_LENGTH] = {1, 1, 1, 1, 1};
int food_x;
int food_y;
int main()
{
//設定終端進入非緩衝狀態
int tty_set_flag;
tty_set_flag = tty_set();
//將你的 snake 程式碼放在這裡
output(); //output the initial map and snake.
creatrandomfood(); //output the random food.
char direction;
int flag=1;
while (flag==1) {
scanf(" %c", &direction); //input the moving direction
snakemove(); //use 'w'(up),'s'(down),'a'(left),'d'(right) and 'Enter' to move.
if (direction == 'w') {
snake_y[0] -= 1;
map[snake_y[0]][snake_x[0]] = SNAKE_HEAD;
}
if (direction == 's') {
snake_y[0] += 1;
map[snake_y[0]][snake_x[0]] = SNAKE_HEAD;
}
if (direction == 'a') {
snake_x[0] -= 1;
map[snake_y[0]][snake_x[0]] = SNAKE_HEAD;
}
if (direction == 'd') {
snake_x[0] += 1;
map[snake_y[0]][snake_x[0]] = SNAKE_HEAD;
}
if (snake_x[0] == food_x && snake_y[0] == food_y) {
creatrandomfood();
snake_length++;
snake_x[snake_length - 1] = snake_x[snake_length - 2];
snake_y[snake_length - 1] = snake_y[snake_length - 2];
map[snake_y[snake_length - 1]][snake_x[snake_length - 1]] = SNAKE_BODY;
}
if (gameover()!=1) { //When the snake hits itself or hits the wall,the game will be over.
printf("GAMEOVER!\n\nTHANKS FOR PLAYING!\n");
flag=0;
}
else {
output();
}
}
printf("pressed `q` to quit!\n");
while(1) {
if( kbhit() ) {
const int key = getchar();
printf("%c pressed\n", key);
if(key == 'q')
break;
} else {
;// fprintf(stderr, "<no key detected>\n");
}
}
//恢復終端設定
if(tty_set_flag == 0)
tty_reset();
return 0;
}
//output the initial map and snake.
void output() {
int i,j;
for (i = 0; i <= 11; i++) {
for (j = 0; j <= 11; j++) {
printf("%c", map[i][j]);
}
printf("\n");
}
}
//output the random food.
void creatrandomfood() {
srand((unsigned)(time(NULL)));
food_x = rand() % 7;
food_y = rand() % 7;
while (map[food_y][food_x] != BLANK_CELL) {
food_x = rand() % 7;
food_y = rand() % 7;
}
map[food_y][food_x] = SNAKE_FOOD ;
}
//use 'w'(up),'s'(down),'a'(left),'d'(right) and 'Enter' to move.
void snakemove() {
int i;
map[snake_y[snake_length - 1]][snake_x[snake_length - 1]] = BLANK_CELL;
for (i = snake_length - 1; i > 0; i--) {
snake_x[i] = snake_x[i - 1];
snake_y[i] = snake_y[i - 1];
map[snake_y[i]][snake_x[i]]