Improve code

Author: mohd-akram

st.c

@@ -704,13 +704,10 @@ void updacc(int p)
 
 	/* upda5 */
 	// if the planet is too far, set a flag to not draw its border
-	// and ignore its gravity
-	if (dpar > fardst) {
-		// unless it's the sun
-		if (p) {
-			grvflg = true;
-			return;
-		}
+	// and ignore its gravity unless it's the sun
+	if (dpar > fardst && p) {
+		grvflg = true;
+		return;
 	}
 	grvflg = false;
 
@@ -960,7 +957,7 @@ void main_loop(void)
 #ifdef __EMSCRIPTEN__
 	emscripten_cancel_main_loop();
 #else
-	exit(0);
+	exit(EXIT_SUCCESS);
 #endif
 }
 
@@ -1028,11 +1025,11 @@ int main(void)
 #ifdef __EMSCRIPTEN__
 	emscripten_set_main_loop(main_loop, 0, true);
 #else
-	while (1) {
+	while (true) {
 		main_loop();
 		SDL_Delay(1000/60);
 	}
 #endif
 
-	return 0;
+	return EXIT_SUCCESS;
 }