screen.h

#pragma once 

#include <SDL2/SDL.h>
#include <cstdlib>
#include <iostream>
#include <time.h>  
#include <vector>
#include <tuple>
#include <algorithm>

using namespace std;

class GraphicsWrap {

    SDL_Window* window;
    SDL_Renderer* renderer;
    SDL_bool done;
    vector<SDL_FPoint> points;
    vector<SDL_Color> colors;
    SDL_Event event;
    
    int WINDOW_HEIGHT = 640;
    int WINDOW_WIDTH = 1080;
    public:
    GraphicsWrap() {
       SDL_Init(SDL_INIT_VIDEO); 
       SDL_CreateWindowAndRenderer(WINDOW_WIDTH, WINDOW_HEIGHT, SDL_WINDOW_ALLOW_HIGHDPI, &window, &renderer);
       SDL_RenderSetScale(renderer,4,4);
    }

    void drawpixel(double xm, double ym, uint8_t r = 255, uint8_t g = 255, uint8_t b = 255, uint8_t a = 255) {
        points.emplace_back(ym,xm);
        colors.emplace_back(r,g,b,a);
    }
    
    void clearpixels() {
        points.clear();
    }

    void update() {
        SDL_SetRenderDrawColor(renderer, 0, 0, 0, SDL_ALPHA_OPAQUE);
        SDL_RenderClear(renderer);
        
        for(long unsigned int i = 0; i < points.size(); i++) {
            SDL_SetRenderDrawColor(renderer, colors[i].r, colors[i].g, colors[i].b, colors[i].a);
            SDL_RenderDrawPointF(renderer, points[i].x,points[i].y);
        }


        SDL_RenderPresent(renderer);
    }
    
    void input() {
        while( SDL_PollEvent( &event ) ) {  
            switch( event.type ) {
                /* SDL_QUIT event (window close) */
                case SDL_QUIT:
                    SDL_Quit();
                    exit(0);
                    break;

                default:
                    break;
            }
        }
    }

};