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Pixels: Mend canvas update glitch

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This commit is contained in:
Bill Kendrick 2023-04-23 17:11:45 -07:00
parent 966d840126
commit 1670f3f1ee
1 changed files with 10 additions and 5 deletions
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15
magic/src/pixels.c
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@ -23,7 +23,7 @@
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
(See COPYING.txt)
Last updated: April 20, 2023
Last updated: April 23, 2023
*/
#include <stdio.h>
@ -175,10 +175,15 @@ void pixels_drag(magic_api * api, int which, SDL_Surface * canvas,
y = tmp;
}
update_rect->x = x - pixel_size * 2;
update_rect->y = y - pixel_size * 2;
update_rect->w = (ox + pixel_size * 2) - update_rect->x;
update_rect->h = (oy + pixel_size * 2) - update_rect->y;
ox = (ox / pixel_size) * pixel_size;
oy = (oy / pixel_size) * pixel_size;
x = (x / pixel_size) * pixel_size;
y = (y / pixel_size) * pixel_size;
update_rect->x = ox - pixel_size * 2;
update_rect->y = oy - pixel_size * 2;
update_rect->w = (x + pixel_size * 2) - update_rect->x;
update_rect->h = (y + pixel_size * 2) - update_rect->y;
api->playsound(pixel_snd, (x * 255) / canvas->w, 255);
}