/**
* \brief Draws the transition effect on a surface.
* \param dst_surface The destination surface.
*/
void TransitionFade::draw(Surface& dst_surface) {
// Draw the transition effect on the surface.
int alpha_impl = std::min(alpha, 255);
if (!colored) {
// Set the opacity on the surface.
// Only possible for software destinations.
Debug::check_assertion(dst_surface.is_software_destination()
|| !Video::is_acceleration_enabled(),
"Cannot apply fade transition: this surface is in read-only mode");
dst_surface.set_opacity(alpha_impl);
}
else {
// Add a colored foreground surface with the appropriate opacity.
uint8_t r, g, b, a;
transition_color.get_components(r, g, b, a);
// A full opaque transition corresponds to a foreground with full alpha.
Color fade_color(r, g, b, 255 - std::min(alpha_impl, (int) a));
dst_surface.fill_with_color(fade_color);
}
this->dst_surface = &dst_surface;
}
void shadow_helper(Block* b, SDL_Surface* s)
{
SDL_Rect shadow;
shadow.x = b->getX() * BLOCK_WIDTH;
shadow.y = b->getY() * BLOCK_WIDTH;
shadow.w = BLOCK_WIDTH;
shadow.h = nextris::options::get_options().game.height * BLOCK_WIDTH;
SDL_Color color = scintColors[b->getColor()];
//SDL_FillRect(s, &shadow, );
vertical_gradient(s, shadow, fade_color(color, 2));
}
