OniDev Library - Game Engine C++

uint surf = surfaceCreate(640,480);

drawSurface(surf,0,0);

/*  ...  */

mainWin.display();


surfaceFree(surf);

#include "onidev.h"

int main(int , char **)
{
    MWindow mainWin(VideoMode(640, 480, 16), "Super fenetre de la mort qui tue");
   
    // Set opengl options
    glEnable(GL_TEXTURE_2D);
    glEnable(GL_BLEND);
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    initExtentions();

    // Projection 2D
    RoomView currentView;
    currentView.setView(0, 640, 0, 480, 640, 480);
   
    // Création de FBO
    int surf = surfaceCreate(640, 480);
    drawSetColor(c_lime);
   
    while(mainWin.isOpen())
    {
        mainWin.getEvents();

        if(keyPressed(vk_escape))
            gameEnd();
        drawClear(0);
       
        // draw
        static int ox=mouse_x, oy=mouse_y;
       
        surfaceSetTarget(surf);
        if(mouseCheck(mb_left))
            drawLine(ox, oy, mouse_x, mouse_y);
        if(keyPressed(vk_space))
            drawClear(0);
        ox = mouse_x;
        oy = mouse_y;
        surfaceResetTarget();
       
        drawSurface(surf, 0, 0);
       
        mainWin.display();
    }
   
    surfaceFree(surf);

    mainWin.close();
    return 0;
}

w = 32
h = w

draw_set_font(font0)
draw_set_color(c_white)
for(i=0; i<16; i+=1)
for(j=0; j<16; j+=1)
draw_text(mouse_x + i*w, mouse_y + j*h, chr(i+16*j))

if(keyboard_check_pressed(vk_space))
screen_save_part("out.bmp", 0, 0, 256*2, 256*2)
else
{
    for(i=0; i<16; i+=1) {
    draw_line(i*w, 0, i*w, 16*w)
    draw_line(0, i*h, 16*h, i*h)
    }
}