diff --git a/window.c b/window.c
index ea0ef3a..f70cc23 100644
--- a/window.c
+++ b/window.c
@@ -53,7 +53,6 @@ static surface_t * _moon[18] = {NULL, NULL, NULL, NULL,
 static int _use_tex = 1, _use_color = 0, _use_lighting = 1;
 
 typedef struct cam_t cam_t;
-
 // camera structure, borrowed from sample3d_01-1.6 of GL4Dummies samples.
 struct cam_t {
 	float x, y, z;
@@ -72,13 +71,13 @@ static int _wW = 1200, _wH = 900;
 static int _xm = 600, _ym = 450;
 
 static int _pause = 0; // boolean value for the pause.
-static float _s = 1.0f; // multiplier for angle (for speeding planets movement and rotation).
 static int _movement = 1; // boolean to allow movement.
-static int _p = -1; // the object (sun, planets, pluto) number to move.
-static float _a = 0.0f; // rotation angle.
 static int _overview = 0; // boolean to toggle overview (view from the top).
+static int _p = -1; // the object (sun, planets, pluto) number to move.
+static float _s = 1.0f; // multiplier for angle (for speeding planets movement and rotation).
+static float _a = 0.0f; // rotation angle.
 
-static Mix_Chunk * bsound = NULL;
+static Mix_Chunk * bsound = NULL; // background sound.
 
 /*!\brief paramètre l'application et lance la boucle infinie. */
 int main(int argc, char ** argv) {
@@ -119,8 +118,11 @@ int main(int argc, char ** argv) {
  * utilisées dans ce code */
 void init(void) {
 	uint id[9], sun_id, i, moon_id[18];
-	int flags = MIX_INIT_MP3;
-	int initted = Mix_Init(flags);
+	int flags, initted;
+
+	flags 	= MIX_INIT_MP3;
+	initted = Mix_Init(flags);
+
 	if ((initted & flags) != flags) {
 		fprintf(stderr, "Mix_Init: Failed to init required mp3 support!\n");
 		fprintf(stderr, "Mix_Init: %s\n,", Mix_GetError());
@@ -134,7 +136,6 @@ void init(void) {
 		bsound = Mix_LoadWAV("./space.wav");
 	if (Mix_PlayChannel(-1, bsound, 0) < 0)
 		fprintf(stderr, "Mix_PlayChannel: %s\n", Mix_GetError());
-
 	
 	// create all spheres.
 	_sun = mkSphere(12, 12);  /*ça fait 12x12x2 triangles !*/
@@ -145,7 +146,6 @@ void init(void) {
 		_planet[i] = mkSphere(12, 12);
 	}
 
-
 	// get all textures.
 	sun_id 	= getTexFromBMP("images/2k-sun.bmp");
 	id[0] 	= getTexFromBMP("images/2k-mercury.bmp");
@@ -527,6 +527,7 @@ void draw(void) {
 	gl4dpScreenHasChanged();
 	/* fonction permettant de raffraîchir l'ensemble de la fenêtre*/
 	gl4dpUpdateScreen(NULL);
+
 	if (!_pause){
 		_a += ((360.0 * dt) / 60) * _s; // 360 in 1 minute so 1 day = 1 min
 		r += ((360.0 * dt) / 60) * _s; // 360 in 1 minute so 1 day = 1 min