Updated for Watcom C++ and LCC compilers
--HG-- extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40289
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3 changed files with 25 additions and 9 deletions
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@ -1,4 +1,3 @@
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/* Simple program: Move N sprites around on the screen as fast as possible */
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#include <stdio.h>
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@ -18,6 +17,7 @@ SDL_Rect *sprite_rects;
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SDL_Rect *positions;
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SDL_Rect *velocities;
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int sprites_visible;
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Uint16 sprite_w, sprite_h;
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int LoadSprite(SDL_Surface *screen, char *file)
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{
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@ -66,12 +66,12 @@ void MoveSprites(SDL_Surface *screen, Uint32 background)
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position = &positions[i];
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velocity = &velocities[i];
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position->x += velocity->x;
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if ( (position->x < 0) || (position->x >= screen->w) ) {
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if ( (position->x < 0) || (position->x >= (screen->w - sprite_w)) ) {
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velocity->x = -velocity->x;
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position->x += velocity->x;
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}
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position->y += velocity->y;
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if ( (position->y < 0) || (position->y >= screen->h) ) {
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if ( (position->y < 0) || (position->y >= (screen->h - sprite_w)) ) {
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velocity->y = -velocity->y;
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position->y += velocity->y;
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}
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@ -209,10 +209,12 @@ int main(int argc, char *argv[])
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sprite_rects += numsprites;
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velocities = sprite_rects;
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sprite_rects += numsprites;
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sprite_w = sprite->w;
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sprite_h = sprite->h;
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srand(time(NULL));
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for ( i=0; i<numsprites; ++i ) {
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positions[i].x = rand()%screen->w;
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positions[i].y = rand()%screen->h;
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positions[i].x = rand()%(screen->w - sprite_w);
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positions[i].y = rand()%(screen->h - sprite_h);
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positions[i].w = sprite->w;
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positions[i].h = sprite->h;
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velocities[i].x = 0;
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@ -285,5 +287,6 @@ int main(int argc, char *argv[])
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printf("%2.2f frames per second\n",
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((double)frames*1000)/(now-then));
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}
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SDL_Quit();
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return(0);
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}
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