#include <curses.h>
#include <stdlib.h>
#include <pthread.h>
#define UP 1
#define DOWN 2
#define LEFT 3
#define RIGHT 4
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);
}
int hasSnakeNode(int i, int j)
{
struct Snake *p;
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 gamePic()
{
int hang;
int lie;
move(0, 0);
for (hang = 0; hang < 20; hang++) {
if (hang == 0) {
for (lie = 0; lie < 20; 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 < 20; lie++) {
printw("--");
}
printw("\n");
printw("Bylonghaiyang, food.hang=%d, food.lie=%d\n", food.hang, food.lie);
}
}
}
void addNode()
{
struct Snake *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;
dir = RIGHT;
while (head != NULL) {
p = head;
head = head->next;
free(p);
}
head = (struct Snake *)malloc(sizeof(struct Snake));
head->hang = 2;
head->lie = 2;
head->next = NULL;
tail = head;
addNode();
addNode();
addNode();
}
void deleNode()
{
struct Snake *p;
p = head;
head = head->next;
free(p);
}
void moveSnake()
{
addNode();
if (hasFood(tail->hang, tail->lie)) {
initFood();
} else {
deleNode();
}
if (tail->hang == 0 || tail->lie == 0 || tail->hang == 20 || tail->lie == 20) {
initSnake();
}
}
void* refreshJieMian()
{
while (1) {
moveSnake();
gamePic();
refresh();
usleep(100000);
}
}
void* changeDir()
{
while (1) {
key = getch();
switch (key) {
case KEY_DOWN:
dir = DOWN;
break;
case KEY_UP:
dir = UP;
break;
case KEY_LEFT:
dir = LEFT;
break;
case KEY_RIGHT:
dir = RIGHT;
break;
}
}
}
int main()
{
pthread_t t1;
pthread_t t2;
initNcurse();
initSnake();
initFood();
gamePic();
pthread_create(&t1, NULL, refreshJieMian, NULL);
pthread_create(&t2, NULL, changeDir, NULL);
while (1);
getch();
endwin();
return 0;
}