贪吃蛇——Linux环境下,基于Ncurse图形库的c语言的小游戏
作者:互联网
1.一些关于ncurse的知识
(1)使用ncurses原因:按键响应速度快
(2)一些ncurse函数:
initscr();//ncurse界面初始化函数
printw();//在ncurse模式下的printf
getch();//等待用户输入,如果没有这句话程序就退出了,看不到运行结果
endwin();//程序退出,调用函数来恢复shell终端的显示,如果没有这句话,shell终端会字乱码,坏掉
keypad();//设置了可以从stdscr接收键盘的功能键(快捷键)
//使用keypad(stdtcr,1);
move();//改变光标的位置
//使用move(1,1);
refresh();//刷新
noecho();//不要把功能键的信息打印出来
2.制作贪吃蛇的思路
(1)地图规划
大小20*20
地图竖直方向上的边界"|"
地图水平方向上的边界"--"
贪吃蛇的身子"[]"
食物"##"
(2)蛇的身子的初始化(链表)
(3)蛇向右移动(链表的添加,删除)
(4)蛇碰到边界,重新开始(初始化蛇)
(5)引入线程(方向改变和刷新界面)
(6)蛇四方向的移动(要解决不合理走位)
(7)蛇吃食物(食物的随机,链表的增加)
(8)贪吃蛇的头碰到身子(注意链表的头结点)
3.代码实现:
#include <curses.h>
#include <stdlib.h>
#include <pthread.h>
#define UP 1
#define DOWN -1
#define LEFT 2
#define RIGHT -2
struct Snake{
int hang;
int lie;
struct Snake *next;
};
struct Snake *head = NULL;
struct Snake *tail = NULL;
int key;
int dir;
struct Snake food;
void initFood(){
int x = rand()%20;
int y = rand()%20;
food.hang = x;
food.lie = y;
}
void initNcurse(){
initscr();
keypad(stdscr,1);
noecho();
}
int hasSnakeNode(int i,int j){
struct Snake *p = head;
while(p != NULL){
if(p->hang == i && p->lie == j){
return 1;
}
p = p->next;
}
return 0;
}
int hasFood(int i,int j){
if(food.hang == i && food.lie == j){
return 1;
}
return 0;
}
void initPic(){
int hang;
int lie;
move(0,0);
for(hang = 0;hang<20;hang++){
if(hang == 0){
for(lie = 0;lie <= 19;lie++){
printw("--");
}
printw("\n");
}
if(hang > 0 && hang <= 19){
for(lie = 0;lie <= 20;lie++){
if(lie == 0 || lie == 20){
printw("|");
}else if(hasSnakeNode(hang,lie)){
printw("[]");
}else if(hasFood(hang,lie)){
printw("##");
}
else{
printw(" ");
}
}
printw("\n");
}
if(hang == 19){
for(lie = 0;lie <= 19;lie++){
printw("--");
}
printw("\n");
}
}
printw("By chenweiqiang,key = %d\n",key);
}
void addNode(){
struct Snake *new;
new = (struct Snake*)malloc(sizeof(struct Snake));
new->next = NULL;
switch(dir){
case UP:
new->hang = tail->hang-1;
new->lie = tail->lie;
break;
case DOWN:
new->hang = tail->hang+1;
new->lie = tail->lie;
break;
case LEFT:
new->hang = tail->hang;
new->lie = tail->lie-1;
break;
case RIGHT:
new->hang = tail->hang;
new->lie = tail->lie+1;
break;
}
tail->next = new;
tail = new;
}
void initSnake(){
struct Snake *p = NULL;
initFood();
dir = RIGHT;
while(p != NULL){
p = head;
free(p);
p = p->next;
}
head = (struct Snake*)malloc(sizeof(struct Snake));
head->hang = 2;
head->lie = 2;
head->next = NULL;
tail = head;
addNode();
addNode();
addNode();
}
void deleteNode(){
struct Snake *p;
p = head;
head = head->next;
free(p);
}
int ifSnakeDie(){
struct Snake *p = head;
// p = head;
if(tail->hang == 0 || tail->hang == 20 || tail->lie ==0 || tail->lie ==20){
return 1;
}
while(p->next != NULL){
if(tail->hang == p->hang && tail->lie == p->lie){
return 1;
}
p = p->next;
}
return 0;
}
void moveSnake(){
if(tail->hang == food.hang && tail->lie == food.lie){
addNode();
initFood();
}
addNode();
deleteNode();
if(ifSnakeDie()){
initSnake();
}
}
void turn(int drection){
if(abs(dir) != abs(drection)){
dir = drection;
}
}
void* changeDir(){
while(1){
key = getch();
switch(key){
case KEY_UP:
turn(UP);
break;
case KEY_DOWN:
turn(DOWN);
break;
case KEY_LEFT:
turn(LEFT);
break;
case KEY_RIGHT:
turn(RIGHT);
break;
}
}
}
void* refreshSnake(){
while(1){
moveSnake();
initPic();
refresh();
usleep(100000);
}
}
int main(){
pthread_t t1;
pthread_t t2;
initNcurse();
initPic();
initSnake();
pthread_create(&t1,NULL,refreshSnake,NULL);
pthread_create(&t2,NULL,changeDir,NULL);
//pthread_create(&tid, NULL, fun, NULL);
while(1);
getch();
endwin();
}
标签:lie,struct,int,hang,tail,Ncurse,贪吃蛇,Snake,图形库 来源: https://blog.csdn.net/qq_51938263/article/details/115415482