#include <allegro5/allegro5.h>
#include <allegro5/allegro_image.h>
#include <iostream>

#undef main
#define PI 3.14

void main()
{
	al_init();
	al_install_keyboard();
	al_init_image_addon();

	ALLEGRO_DISPLAY* display;
	display = al_create_display( 640, 480 );

	if ( !display )
	{
		std::cout << "Nie udalo sie utworzyc okna!" << std::endl;
		getchar();
		return;
	}

	ALLEGRO_BITMAP *logo = al_load_bitmap( "logo.bmp" );
	if ( !logo )
	{
		std::cout << "Nie udalo sie wczytac obrazka 'logo.bmp'" << std::endl;
		getchar();
		return;
	}
	int logoSzer = al_get_bitmap_width( logo );
	int logoWys = al_get_bitmap_height( logo );

	ALLEGRO_BITMAP *ludzik = al_load_bitmap( "ludzik.bmp" );
	if ( !ludzik )
	{
		std::cout << "Nie udalo sie wczytac obrazka 'ludzik.bmp'" << std::endl;
		getchar();
		return;
	}
	al_convert_mask_to_alpha( ludzik, al_map_rgb( 255, 0, 255 ) );

	al_set_window_title( display, "Bitmapy" );

	ALLEGRO_KEYBOARD_STATE key_state;
	al_get_keyboard_state( &key_state );

	while( !al_key_down( &key_state, ALLEGRO_KEY_ESCAPE ) )
	{
		al_get_keyboard_state( &key_state );
		al_clear_to_color( al_map_rgb( 0, 128, 0 ) );

		if ( al_key_down( &key_state, ALLEGRO_KEY_SPACE ) )
			al_set_blender( ALLEGRO_ADD, ALLEGRO_ALPHA, ALLEGRO_INVERSE_ALPHA );
		else
			al_set_blender( ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_INVERSE_ALPHA );

		al_draw_bitmap( ludzik, 10, 50, NULL );
		al_draw_bitmap( logo, 160, 50, NULL );
		al_draw_bitmap_region( logo, 0, 0, 100, 90, 150, 160, NULL );
		al_draw_scaled_bitmap( logo, 0, 0, logoSzer, logoWys, 260, 160, 80, 80, NULL );
		al_draw_rotated_bitmap( logo, logoSzer/2, logoWys/2, 540, 160, PI*90/180, NULL );
		al_draw_bitmap( logo, 120, 280, NULL );
		al_draw_bitmap( logo, 140, 300, NULL );
		al_draw_bitmap( logo, 170, 320, NULL );

		al_flip_display();
	}

	al_destroy_bitmap( logo );
	al_destroy_bitmap( ludzik );
}