Graphics

// Graphics.cpp : Este arquivo contém a função 'main'. A execução do programa começa e termina ali.
//

#include <iostream>
#include <cstdlib>
#include <Windows.h>
#include <conio.h>
#define PLAY_SIZE 20

struct control {
    unsigned x;
    unsigned y;
    COLORREF color;
    int move;
    /*
    control(unsigned x, unsigned y, COLORREF color, int action)
    {
        this->x = x;
        this->y = y;
        this->color = color;
        move = action;
    }
    */
};

void createSquare(COLORREF point, unsigned length, int start_x, int start_y);
void playGame(COLORREF point, unsigned length, int start_x, int start_y);

int main()
{
    COLORREF White = RGB(255, 255, 255);
    //createSquare(White, 512, 20, 20);
    playGame(White, 512, 20, 20);
    system("pause");
    return 0;
}

void createSquare(COLORREF point, unsigned length, int start_x, int start_y)
{
    HDC hdc = GetDC(NULL);
    for (unsigned i = 0; i < length; i++)
        for (unsigned j = 0; j < length; j++)
            SetPixel(hdc,start_x + i, start_y + j, point);
    ReleaseDC(NULL, hdc);
}

void playGame(COLORREF point, unsigned length, int start_x, int start_y)
{
    control c;
    c.x = start_x;
    c.y = start_y;
    c.color = RGB(0, 0, 0);
    c.move = 0;
    HDC hdc = GetDC(NULL);
    for (unsigned i = 0; i < length; i++)
        for (unsigned j = 0; j < length; j++)
            SetPixel(hdc, start_x + i, start_y + j, point);
    for (unsigned i = 0; i < PLAY_SIZE; i++)
        for (unsigned j = 0; j < PLAY_SIZE; j++)
            SetPixel(hdc, c.x + i, c.y + j, c.color);
    do {
        if ((c.move = _getch()) == '\n')
            break;
        switch (c.move)
        {
        case 'w':
            if (c.y != PLAY_SIZE)
            {
                for (unsigned j = PLAY_SIZE - 1 - 8; j < PLAY_SIZE - 1; j++)
                for (unsigned i = 0; i < PLAY_SIZE; i++)
                    SetPixel(hdc, c.x + i, c.y + j, point);
                c.y -= 8;
                for (unsigned j = 0; j < 8; j++)
                for (unsigned i = 0; i < PLAY_SIZE; i++)
                    SetPixel(hdc, c.x + i, c.y + j, c.color);
            }
            break;
        case 'a':
            if (c.x != PLAY_SIZE)
            {
                for (unsigned i = PLAY_SIZE - 1 - 8; i < PLAY_SIZE - 1; i++)
                for (unsigned j = 0; j < PLAY_SIZE; j++)
                    SetPixel(hdc, c.x + i, c.y + j, point);
                c.x -= 8;
                for (unsigned i = 0; i < 8; i++)
                for (unsigned j = 0; j < PLAY_SIZE; j++)
                    SetPixel(hdc, c.x + i, c.y + j, c.color);
            }
            break;
        case 's':
            if (c.y != 500)
            {
                for (unsigned j = 0; j < 8; j++)
                for (unsigned i = 0; i < PLAY_SIZE; i++)
                    SetPixel(hdc, c.x + i, c.y + j, point);
                c.y += 8;
                for (unsigned j = PLAY_SIZE - 1 - 8; j < PLAY_SIZE - 1; j++)
                for (unsigned i = 0; i < PLAY_SIZE; i++)
                    SetPixel(hdc, c.x + i, c.y + j, c.color);
            }
            break;
        case 'd':
            if (c.x != 500)
            {
                for (unsigned i = 0; i < 8; i++)
                for (unsigned j = 0; j < PLAY_SIZE; j++)
                    SetPixel(hdc, c.x + i, c.y + j, point);
                c.x += 8;
                for (unsigned i = PLAY_SIZE - 1 - 8; i < PLAY_SIZE - 1; i++)
                for (unsigned j = 0; j < PLAY_SIZE; j++)
                    SetPixel(hdc, c.x + i, c.y + j, c.color);
            }
            break;
        default:
            break;
        }
    } while (1);
    ReleaseDC(NULL, hdc);
}