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#define NOMINMAX
#define WIN32_LEAN_AND_MEAN
#include <Windows.h>
#include <iostream>


void cls()
{
    // Get the Win32 handle representing standard output.
    // This generally only has to be done once, so we make it static.
    static const HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);

    CONSOLE_SCREEN_BUFFER_INFO csbi;
    COORD topLeft = { 0, 0 };

    // std::cout uses a buffer to batch writes to the underlying console.
    // We need to flush that to the console because we're circumventing
    // std::cout entirely; after we clear the console, we don't want
    // stale buffered text to randomly be written out.
    std::cout.flush();

    // Figure out the current width and height of the console window
    if (!GetConsoleScreenBufferInfo(hOut, &csbi)) {
        // TODO: Handle failure!
        abort();
    }
    DWORD length = csbi.dwSize.X * csbi.dwSize.Y;

    DWORD written;

    // Flood-fill the console with spaces to clear it
    FillConsoleOutputCharacter(hOut, TEXT(' '), length, topLeft, &written);

    // Reset the attributes of every character to the default.
    // This clears all background colour formatting, if any.
    FillConsoleOutputAttribute(hOut, csbi.wAttributes, length, topLeft, &written);

    // Move the cursor back to the top left for the next sequence of writes
    SetConsoleCursorPosition(hOut, topLeft);
}

// x is the column, y is the row. The origin (0,0) is top-left.
void setCursorPosition(int x, int y)
{
    static const HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
    std::cout.flush();
    COORD coord = { (SHORT)x, (SHORT)y };
    SetConsoleCursorPosition(hOut, coord);
}


/* Trying to design a ship for ASCII art im just grabbing from text art
 this one is called sjw for some dumb reason T_T
 but its the samllest one they had
      /\
     (  )
     (  )
    /|/\|\
   /_||||_\

*/

void setConsoleColour(unsigned short colour)
{
    static const HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
    std::cout.flush();
    SetConsoleTextAttribute(hOut, colour);
}

int main(int argc, int argv[])
{
    // Step through with a debugger, or insert sleeps, to see the effect.
    setCursorPosition(10, 5);
    std::cout << "CHEESE";
    setCursorPosition(10, 5);
    std::cout << 'W';
    setCursorPosition(10, 9);
    std::cout << 'Z';
    setCursorPosition(10, 5);
    std::cout << "     ";  // Overwrite characters with spaces to "erase" them
    std::cout.flush();
    // Voilà, 'CHEESE' converted to 'WHEEZE', then all but the last 'E' erased


    return 0;
}