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Modified points.c example from i++ to ++i for performance reasons and a good starting point for beginners to develop good habits.

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JustinChou
2026-09-08 13:09:39 -07:00
committed by Sam Lantinga
parent aa5bffa6d3
commit 8f8ed757bc
1 changed files with 2 additions and 2 deletions
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4
examples/renderer/04-points/points.c
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@@ -50,7 +50,7 @@ SDL_AppResult SDL_AppInit(void **appstate, int argc, char *argv[])
SDL_SetRenderLogicalPresentation(renderer, WINDOW_WIDTH, WINDOW_HEIGHT, SDL_LOGICAL_PRESENTATION_LETTERBOX);
/* set up the data for a bunch of points. */
for (i = 0; i < SDL_arraysize(points); i++) {
for (i = 0; i < SDL_arraysize(points); ++i) {
points[i].x = SDL_randf() * ((float) WINDOW_WIDTH);
points[i].y = SDL_randf() * ((float) WINDOW_HEIGHT);
point_speeds[i] = MIN_PIXELS_PER_SECOND + (SDL_randf() * (MAX_PIXELS_PER_SECOND - MIN_PIXELS_PER_SECOND));
@@ -78,7 +78,7 @@ SDL_AppResult SDL_AppIterate(void *appstate)
int i;
/* let's move all our points a little for a new frame. */
for (i = 0; i < SDL_arraysize(points); i++) {
for (i = 0; i < SDL_arraysize(points); ++i) {
const float distance = elapsed * point_speeds[i];
points[i].x += distance;
points[i].y += distance;