From 88c1ff04a811f3e38c5677195f25bd65e169dc31 Mon Sep 17 00:00:00 2001
From: Florian Burgener <florian.burgener@hesge.ch>
Date: Sat, 11 Dec 2021 21:43:08 +0100
Subject: [PATCH] Fix zoom
---
PlanetarySystem.h | 2 +-
main.c | 10 ++++------
2 files changed, 5 insertions(+), 7 deletions(-)
diff --git a/PlanetarySystem.h b/PlanetarySystem.h
index dca040a..4fdf97f 100644
--- a/PlanetarySystem.h
+++ b/PlanetarySystem.h
@@ -14,7 +14,7 @@ typedef struct {
CelestialObject **objects;
double interval;
double zoom_factor;
- uint32_t reference_frame_object_index;
+ int32_t reference_frame_object_index;
} PlanetarySystem;
PlanetarySystem *planetary_system_create(double interval);
diff --git a/main.c b/main.c
index 0aeb50b..336ce59 100644
--- a/main.c
+++ b/main.c
@@ -60,7 +60,10 @@ int main() {
if (event.key.keysym.sym == SDLK_LEFT) {
planetary_system->reference_frame_object_index -= 1;
- planetary_system->reference_frame_object_index %= planetary_system->objects_length;
+
+ if (planetary_system->reference_frame_object_index < 0) {
+ planetary_system->reference_frame_object_index = planetary_system->objects_length - 1;
+ }
}
if (event.key.keysym.sym == SDLK_RIGHT) {
@@ -70,11 +73,6 @@ int main() {
}
}
- // if (gfx_keypressed() == SDLK_ESCAPE)
- // break;
- // if (gfx_keypressed() == SDL_MOUSEBUTTONDOWN) {
- // printf("A");
- // }
struct timespec t = {.tv_sec = 0, .tv_nsec = sleep_duration};
nanosleep(&t, NULL);
elapsed_time += 1;
--
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