Mail Archives: djgpp/1999/01/25/16:54:37
Message-ID: | <008601be48ad$3ae0b6a0$d3d80ad0@default>
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From: | "Steve Axsom" <sssaxsom AT smithville DOT net>
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To: | <djgpp AT delorie DOT com>
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Subject: | Re: Need help with paletes
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Date: | Mon, 25 Jan 1999 16:54:03 -0500
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MIME-Version: | 1.0
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Reply-To: | djgpp AT delorie DOT com
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It did help =), but for the palete, I had to set the whole palete to the
bitmaps palete (using set_palette(PALETTE *pal) ), or else it use the
default palete when the image is displayed. I might need to explain a little
more of my code, but is there a way of avoiding setting the whole palete?
-Shane
----- Original Message -----
From: DeHackEd <notgiven AT out DOT com>
Newsgroups: comp.os.msdos.djgpp
To: <djgpp AT delorie DOT com>
Sent: Sunday, January 24, 1999 7:53 PM
Subject: Re: Need help with paletes
>Assuming you are working in 8 bit graphics modes, you should just have to
do
>this:
>
>PALETTE pal;
>BITMAP *bmp = load_bitmap("filename.here", pal);
>
>bmp will contain your picture and pal will contain it's palette. Paint, the
>Windows pain editor, saved for me a 136 byte file. A palette, unless
compressed
>(which I doubt) needs to be at least 768 bytes (RBG * 256 plus any header
or
>spacer).
>
>Also for rotate_sprite, the angle is done using fixed notation.
>
>Example (requires floating point math):
>
>fixed degrees(float angle)
>{
> return ftofix(angle/360.0*256.0); // float to fix conveter
>}
>
>// 25 degrees
>rotate_sprite(screen, bmp, x, y, degrees(25));
>
>Hope this helps.
>
>----
>"DeHackEd"
>
>My Email address in the header is completely fake (spammers). Email me at
this
>address:
>http://www.geocities.com/cgi-bin/homestead/mail.pl?dehacked
>
>Steve Axsom <sssaxsom AT smithville DOT net> wrote in message
>news:001901be47ef$796d13a0$b9d80ad0 AT default...
>> I'm making a game in allegro and I'm trying to load bitmaps. Is there
an
>>easier way of setting the palletes then setting RGB for each color at a
>>time? With the windows default bitmap editor, I've notice you can save
>>palate files (.pal). Also, rotate_sprite doesn't seem to work, even with
>>memory bitmaps. if anybody could give me a *simple* code for it, I'd be
very
>>greatful =).
>>
>> -Shane
>>
>>
>
>
>
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