hey, i have a .bmp, its a..well a bunch of sprites, i got a suggestion to blit the sprite frame onto the screen, but it still didn't work, i only need one static image of a sprite, not all of its movements. here is my source.

download attachment, its a screenshot of the output.

well, i have

while ( !key[KEY_ESC] )
{
acquire_screen();

blit(bmp, screen, 0, 0, 0, 0, 20, 20);
blit(screen , screen, 0, 0, 90, 90, 70,70);

release_screen();

}

and it still didn't work. when you said palette did you mean like

Palette palette;
palette = 155, 0, 0; //red color? or something, i always use makecol

edit

As he said just use NULL, it'll stop the complications of it using a palette.
Blitting the screen to the screen won't do anything, apart from waste time.
And one other thing, it might be wise to rest(30); at the end of your step, otherwise your wasting a lot of processor power. Well all of it in fact.

I don't use acquire_screen() and released_screen() used to annoy me because they get very spread out over the entire loop and eventually i got rid of them and i can't remember why now, but i think acquire_screen is only needed when your using primitives, rather than bitmaps.

But I don't understand why this wouldn't work (standard blitting code):

blit(bmp, screen, 0, 0, 0, 0, bmp->w, bmp->h);

You only need to worry about masked_blit when you want transparency (say for your moving character).

Just put that in between acquire and release screen and i don't see why it shouldn't work :S.

And oh btw, I have to ask why these dimensions:

masked_blit(screen , screen, 0, 0, 90, 90, 70,70);

It seems a weird area of the screen to copy.

hmm, still didn't work, all of the sprites still showed up.

Money: I have a selection of game creation articles I wrote some time ago. They deal with creating a gauntlet style game using simple C and allegro commands. Maybe that will help you understand how things work?

http://www.reflectedgames.com/create.html

Not sure why that would happen... but I haven't tested it so it could be something wrong. I was just giving an example of how to blit a portion of a bitmap to the screen. Oh, and I forgot to destroy the image.

[edit]
Yeah, use masked_blit. It takes the same arguments, but just skips all the pink (255, 0, 255) pixels.

I'm afraid you'll have to change the background to pink. Allegro has the it hardcoded in.

If you have all the frames the same size, you can do something like this:

int src_x = image_w * frame;

Assuming you have them all in one line, src_y should be 0.

You shouldn't do any loading or deleting in the main loop. Load the big image at the beggining, and then do something like this:

int src_x = sprite_w * frame;
int src_y = 0;
blit(big, buffer, src_x, src_y, sprite_x, sprite_y, sprite_w, sprite_h);

That would work only if all your frames are the same size.
[edit]
You'll also have to make sure the images are right next to each other, and that the first frame starts at the very corner (0, 0).

hmm i opened the sprite up in ms paint, and changed that backgound to pink(255, 0, 255), when i recompiled and ran the .exe , the pink background showed up, i changed it to black , it was perfect, but thats not very smart when i load like other bitmaps in ,like buildings and stuff, because you'll e able to tell there is a black background stuck to the sprite

i used

while( !key[KEY_ESC] )
    {

    acquire_screen();
    masked_blit(big, screen, 32, 0, 640/2, 480/2, 40, 90);

    release_screen();

    }

what could be wrong, im doing everything right.

[edit]
ok, i guess thats it, i guess i'll have to figure it out someonehow but thanks !

nope, i have tried like 3 different pinks, but it still shows up, here is the code:

i don't possibly see what i could be doing wrong :|

Can you attach the sprite to a post so we can have a look?

[edit]

alright, i got it to work, turns out it was ms paint messing up, i downloaded neopaint and edited the palette to 255, 0, 255, and used that as the background, so i guess i stick with neopaint

thanks all of you for helping me out, i have not yet seen a post this long for one problem, sorry about the credits i had did that earlier, on like the 1st page, but thank you all so much, you've been such a big help

Credit goes to all who replied on this subject...except to craig, no credit goes to craig whatsoever