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inputThread.c
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98 lines (83 loc) · 1.43 KB
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#include <unistd.h>
#include <ncurses.h>
#include <pthread.h>
#include "define.h"
extern Snake snake;
extern pthread_mutex_t mp;
extern pthread_t mainThread;
static pthread_t inputThread;
static bool isPause = false;
Dir nextDir;
// 取得键盘输入，改变蛇的移动方向或退出
static void* getInput(void* arg)
{
keypad(stdscr, true);
noecho();
do
{
switch (getch())
{
case KEY_RIGHT:
if (snake.dir != LEFT)
{
nextDir = RIGHT;
}
break;
case KEY_LEFT:
if (snake.dir != RIGHT)
{
nextDir = LEFT;
}
break;
case KEY_UP:
if (snake.dir != DOWN)
{
nextDir = UP;
}
break;
case KEY_DOWN:
if (snake.dir != UP)
{
nextDir = DOWN;
}
break;
case 'q':
case 'Q':
exitGame(0);
break;
case 'p':
case 'P':
// 向主线程发送信号使其阻塞
if (false == isPause)
{
pthread_mutex_lock(&mp);
isPause = true;
pthread_kill(mainThread, SIGPAUSE);
}
// 解开互斥锁，使主线程恢复运行
else
{
pthread_mutex_unlock(&mp);
isPause = false;
}
break;
case 'r':
case 'R':
// 重新开始
pthread_kill(mainThread, SIGRESTART);
break;
default:
break;
}
} while (true);
return NULL;
}
// 启动线程，接收按键输入
int startInputThread()
{
if (0 != pthread_create(&inputThread, NULL, getInput, NULL))
{
return -1;
}
return 0;
}