#include "ScreenPanel.h"

const ALLEGRO_COLOR ScreenPanel::BLANK = al_map_rgb(0,0,0);

ScreenPanel::ScreenPanel(ALLEGRO_BITMAP* back, ALLEGRO_BITMAP* front, int x, int y, int width, int height)
    :_width(width),
    _height(height)
{
    _back = al_create_sub_bitmap(back, x, y, _width, _height);
    _front = al_create_sub_bitmap(front, x, y, _width, _height);
}

ScreenPanel::~ScreenPanel()
{
    al_destroy_bitmap(_back);
    al_destroy_bitmap(_front);
}

void ScreenPanel::flip()
{
    ALLEGRO_BITMAP* temp = _back;
    _back = _front;
    _front = temp;
}