C ++实时蛇状游戏控制台，无需多线程

Question

I want to make snake game in console using c++, but I don't want to wait every "frame" for user input. If i'll use cin or getch (), program will wait for player input every frame:

while (game)
{
    c = getch (); //input
    snake.move (c); //moving
    draw (); //drawing
}

How to move snake and draw it in console and don't waiting for input every frame?

Is there any way to do that without multithreating? Maybe something like put something in cin buffer in code instead of using console? Is it doable?

Answer 1

You can't use standard C++ because there is no guarantee that when the User presses a key, the key press will be acknowledged immediately. Many implementations wait for the Enter key to be pressed, then process the input buffer.

You will need an event driven system . You want the OS or hardware to notify your program that a key press event has occurred. In this kind of system, you would move the snake during the event handler.

Another method is to poll the switch status. When the key is released, you could move the snake.

All of the above solutions require platform or OS specific functionality.