Adjusting the speed of 2 different object on console - c++

Question

I'm making a simple game like Google's Dinosaur Game. As you pass the obstacles, their speed increases as well as the Dino. What I wanna do is make Dino's speed constant while obstacles speed increases.
while (1)
{
if (GetAsyncKeyState(VK_SPACE) < 0 || action) // checking if the user press SPACE
{
if (!action) button = _getch();
if (button == VK_SPACE) // rest is making the dino move up and down.
{
action = 1;
if (loop < 6)
{
std::queue<Position> tempQue = dinoPos;
for (size_t i = 0; i < DINOSIZE; i++)
{
setCursor(dinoPos.front().x, dinoPos.front().y); dinoPos.pop();
std::cout << " ";
}
for (size_t i = 0; i < DINOSIZE; i++)
{
setCursor(tempQue.front().x, tempQue.front().y - 1);
tempQue.front().y -= 1;
dinoPos.push(tempQue.front());
tempQue.pop();
std::cout << "D";
}
}
loop++;
if (loop == 12)
{
loop = 0;
action = 0;
}
}
}
std::this_thread::sleep_for(std::chrono::milliseconds(speed)); // using this for speeding up the game

Answer 1

You don't want to use sleep_for. It can sleep for longer and offers no timing guarantees. What you want it a fixed update game loop. You can look in popular game engines to see how it's implemented.
But it boils down to the following pseudo-code:
//mainloop
// get a number of frame based on time.
// take a number of frame higher than expected frame rate. say 10 ms.
int frame = now() / frameDuration;
while(true)
{
int frameNow = now() / frameDuration;
while(frame != frameNow)
{
Update();
frame++;
}
render();
}
With the following update function: (pseudo-code again)
// there, you advance you object for a fixing duration, say 10 ms.
// just use different speed for each
Update()
{
obstacle.position += obstacleSpeed * frameDuration;
character.position += characterSpeed * frameDuration;
}