complete game programming newbie here so please bear with me. I'm trying to learn a bit about 2D game programming by trying to code a Space Invaders clone. I can draw the backgound image (an arcade .bmp with a magenta square, which is where the game would display), but I'm at a loss when trying to draw a spaceship in said square.
My code snippets are as follows (all includes are taken care of, since the background is being loaded).
Main method:
#SelectExpand
1ALLEGRO_BITMAP *background
= al_load_bitmap("Resources/bkg.bmp");
2
3 al_register_event_source(event_queue,
al_get_display_event_source(display
));
4 al_register_event_source(event_queue,
al_get_timer_event_source(timer
));
5 al_register_event_source(event_queue,
al_get_keyboard_event_source());
6
7
8 al_set_target_bitmap(al_get_backbuffer(display
));
9 al_clear_to_color(al_map_rgb(0,
0,
0));
10
11Character spaceship
("Recursos/ship.bmp" ,
"Resources/bullet.bmp" ,
6 ,
12 ,
30,
20,
12 300,
530,
-6,
3 ,
"Resources/sound.wav" ,
"Resources/explosion.wav");
13
14 Character
*player
;
15 player
= &spaceship
;
16
17 al_convert_mask_to_alpha(background,
al_map_rgb(255,
0 ,
255));
18
19 al_draw_bitmap(background,
0,
0,
0);
20 spaceship.draw
(player, background
);
21 al_flip_display();
Game Character class:
#SelectExpand
1void Character::draw
(Character
* character,
ALLEGRO_BITMAP* bkg
){
2 al_convert_mask_to_alpha(character->characterImg,
al_map_rgb(255,
0 ,
255));
3 al_set_target_bitmap(bkg
);
4
5 //al_draw_bitmap_region(ALLEGRO_BITMAP *bitmap,
6 //float sx, float sy, float sw, float sh, float dx, float dy, int flags)
7
8 al_draw_bitmap_region(character->characterImg,
0,
0,
28,
20,
100,
100,
0);
9 al_flip_display();
10}
]]>