kukocFrame

#include "pch.h"
#include <iostream>
#include <chrono>
#include <thread>

using namespace std;
int main()
{
#ifndef _WIN32
    const char* CSI = "\033[";
#endif
    const int maxCord = 9;
    const int frameSub = 0;

    //Setup frameMin/Max Not really needed, but makes code MUCH more readable
    int frameMin = frameSub;
    int frameMax = maxCord - 1 - frameSub;

    const int maxLoopX = frameMax;
    const int minLoopX = frameMin;
    int loopStepX = 1;
    int loopX = minLoopX;

    const int maxLoopY = frameMax;
    const int minLoopY = frameMin;
    int loopStepY = 1;
    int loopY = minLoopY;

    int loopActive = 1; // 1 - loopX, 0 - loopY
    char block = ' ';

    while (true)
    {
#ifndef _WIN32
        cout << CSI << "2J"; //portable clear screen
#else
        system("cls");
#endif
        for (int y = 0; y < maxCord; y++)
        {
            for (int x = 0; x < maxCord; x++)
            {
                block = ' ';
                if ((y == frameMin or y == frameMax) and (x >= frameMin and x <= frameMax)) { block = '*'; };
                if ((x == frameMin or x == frameMax) and (y >= frameMin and y <= frameMax)) { block = '*'; };
                if (loopActive) // 1 - loopX, 0 - loopY
                {
                    if ((x == loopX) and ((y == frameMin and loopStepX == 1) or (y == frameMax and loopStepX == -1))) { block = '#'; };
                }
                else
                {
                    if ((y == loopY) and ((x == frameMin and loopStepY == -1) or (x == frameMax and loopStepY == 1))) { block = '#'; };
                }
                cout << ' ' << block << ' ';
            }
            cout << endl;
        }

        if (loopActive) // 1 - loopX, 0 - loopY
        {
            if ((loopX == maxLoopX && loopStepX > 0) || (loopX == minLoopX && loopStepX < 0)) { loopStepX *= -1; loopActive = !loopActive; };
            loopX += loopStepX;
        }
        else
        {
            if ((loopY == maxLoopY && loopStepY > 0) || (loopY == minLoopY && loopStepY < 0)) { loopStepY *= -1; loopActive = !loopActive; };
            loopY += loopStepY;
        }

        std::this_thread::sleep_for(std::chrono::milliseconds(500));
    }
}