From:	arganoid AT fatal-design DOT com (Andrew R. Gillett)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Allegro 3.1 - changes to sprite routines?
Date:	Sun, 17 Jan 1999 17:47:23 -0000
Organization:	www.release-dates.co.uk
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The code below draws a sprite which may either fade in, resize until it 
reaches its full size, or rotates 360 degrees - or do a combination of 
those things.

However, since I got Allegro 3.1, the translucent and resizing effects 
have been upside-down, i.e. vertically flipped. None of the code has been 
changed, only the version of Allegro that I'm using.



clear_to_color (temp_bitmap, makecol(255,0,255));
clear_to_color (temp_bitmap_2, makecol(255,0,255));

draw_rle_sprite (temp_bitmap, (RLE_SPRITE*)datfile[draw_block].dat, 0, 
0);

rotate_scaled_sprite (temp_bitmap_2, temp_bitmap, 0, 0, angle, scale);

draw_trans_sprite (active_page, temp_bitmap_2, x_pos, y_pos);


If I skip rotate_scaled_sprite, it seems to work, which suggests there is 
a bug in rotate_scaled_sprite.

-- 
Andrew Gillett       http://argnet.fatal-design.com/      ICQ: See homepage
"No mustard? You dare to insult me with a mustard-less pizza? You will die
 for this!" - Michelangelo, Starship Losers

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