void Game::renderPass(uint64_t frame)
{
const Rect cameraRect(mCameraPosition - (mScreenSize / 2), mScreenSize);
Renderables renderables = Renderable::all();
for (Renderables::iterator iter = renderables.begin(); iter != renderables.end(); ++iter)
{
Renderable& object = **iter;
Rect boundingRect = object.boundingRect();
if (!object.hidden() && cameraRect.overlaps(boundingRect))
{
// Motion blur
Color::push();
int max = 1;
Color::translate(Color(1.0, 1.0, 1.0, 1.0 / max));
for (int i = 0; i < max; ++i)
{
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
object.render(frame - i);
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
}
Color::pop();
}
}
}
void Game::update()
{
Renderables renderables = Renderable::all();
for (Renderables::iterator iter = renderables.begin(); iter != renderables.end(); ++iter)
{
(*iter)->update();
}
}
void Game::render()
{
glPushMatrix();
// Camera.
glTranslatef(-(mCameraPosition.x - (mScreenSize.width / 2)), -(mCameraPosition.y - (mScreenSize.height / 2)), 0.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
renderPass(frames);
if (drawBoundingBoxes)
{
Renderables rs = Renderable::all();
for (Renderables::const_iterator iter = rs.begin(); iter != rs.end(); ++iter)
{
Rect boundingRect = (*iter)->boundingRect();
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glTranslatef(boundingRect.origin.x, boundingRect.origin.y, 0.0);
glHint(GL_LINE_SMOOTH_HINT, GL_FASTEST);
glBegin(GL_LINE_LOOP);
{
glLineWidth(1.0);
Color(1.0, 1.0, 1.0, 0.5).set();
glVertex2f(0.0, 0.0);
glVertex2f(boundingRect.size.width, 0.0);
glVertex2f(boundingRect.size.width, boundingRect.size.height);
glVertex2f(0.0, boundingRect.size.height);
}
glEnd();
glPopMatrix();
}
}
glPopMatrix();
// TODO: Draw widgets here instead of compensating for the translation in the widget drawing code.
// ^ would also ensure that widgets are always on top of content.
SDL_GL_SwapBuffers();
}
const_iterator begin() const { return m_children.begin(); }