diff --git a/model.c b/model.c
index 71ee1f8..2dd6f50 100644
--- a/model.c
+++ b/model.c
@@ -15,6 +15,7 @@
 
 /* **************************************************************** */
 
+/*	names of assets fichier*/
 #define LIGHTBULB_WHITE "lightbulb_white.png"
 #define LIGHTBULB_RED "lightbulb_red.png"
 #define LB1 "lb1.mp3"
@@ -28,6 +29,7 @@
 #define MARK3 "mark3.wav"
 #define WIN "win.mp3"
 #define FONT "Roboto-Regular.ttf"
+
 #define NB_MUSIC 10
 #define NB_BUTTONS 5
 #define FONTSIZE 200
@@ -60,6 +62,7 @@ static void copy_asset(char* src, char* dst) {
 
 /* **************************************************************** */
 
+/*		Fonction Min		*/
 int int_min_intero(int a, int b) {
 	if (a < b)
 		return a;
@@ -78,6 +81,7 @@ bool game_has_error_general_intero(cgame g) {
 
 struct Env_t {
 	game g;
+
 	SDL_Texture** zero;  // array of two texture one white and one red for each number (red color = r:255 g:50 b:50)
 	SDL_Texture** one;
 	SDL_Texture** two;
@@ -89,18 +93,21 @@ struct Env_t {
 	SDL_Texture** text_redo;
 	SDL_Texture** text_solve;
 	SDL_Texture** text_save;  // this one have three textures one white, one black and one green
+
 	bool pressed_restart;
 	bool pressed_undo;
 	bool pressed_redo;
 	bool pressed_solve;
 	bool pressed_save;
 	bool pressed_savED;
+
 	SDL_Rect* rec_game;  // rectangle of the grid
 	SDL_Rect* rec_redo;  // rectangle of each buttons
 	SDL_Rect* rec_undo;
 	SDL_Rect* rec_restart;
 	SDL_Rect* rec_solve;
 	SDL_Rect* rec_save;
+
 	Mix_Music** lb_music;
 	uint lb_music_cpt;
 	Mix_Music** err_music;
@@ -118,6 +125,7 @@ void usage(char* argv[]) {
 	exit(EXIT_FAILURE);
 }
 
+/*	Fonction for return a texture of a given text	*/
 SDL_Texture* render_blended_text(SDL_Renderer* ren, SDL_Color color, char* text) {
 	TTF_Font* font = TTF_OpenFont(FONT, FONTSIZE);  // TO EDIT !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! (ANDROID)
 	if (!font)
@@ -132,9 +140,10 @@ SDL_Texture* render_blended_text(SDL_Renderer* ren, SDL_Color color, char* text)
 	return tmp;
 }
 
+/*		Fonction for allocating automaticly		*/
 void init_malloc(void** tab[], unsigned long* sizeof_tab, uint size_tab) {
 	for (uint i = 0; i < size_tab; i++) {
-		*(tab[i]) = malloc(sizeof_tab[i]);
+		*(tab[i]) = malloc(sizeof_tab[i]);		//malloc with the corressponding size 
 		if (*(tab[i]) == NULL)
 			ERROR("%s", "Not enough memory.\n");
 	}
@@ -474,31 +483,32 @@ bool process(SDL_Window* win, Env* env, SDL_Event* e, SDL_Event* prec_e, int* nb
 	if (e->type == SDL_QUIT) {
 		return true;
 	}
-	if (e->type == SDL_KEYDOWN) {
+	/*Tests of the differents types of inputs for interact with the game*/
+	if (e->type == SDL_KEYDOWN) {										//differents shortcuts for differents types of actions
 		const Uint8* state = SDL_GetKeyboardState(NULL);
-		if (state[SDL_SCANCODE_F11]) {
+		if (state[SDL_SCANCODE_F11]) {									//F11 forr toggle fullscreen (pretty obvious)
 			ToggleFullscreen(win);
-		} else if (state[SDL_SCANCODE_Z]) {
+		} else if (state[SDL_SCANCODE_Z]) {								//Z for undo a move only if you have done at least 1 move before
 			if ((*nb_coups) > 0) {
 				game_undo(env->g);
 				(*nb_undo)++;
 				(*nb_coups)--;
 			}
-		} else if (state[SDL_SCANCODE_Y]) {
+		} else if (state[SDL_SCANCODE_Y]) {								//Y for redo a move can only be used if u heve done one or many undo before
 			if ((*nb_undo) > 0) {
 				game_redo(env->g);
 				(*nb_undo)--;
 				(*nb_coups)++;
 			}
-		} else if (state[SDL_SCANCODE_S]) {
+		} else if (state[SDL_SCANCODE_S]) {								//S for solving the game immediatly 
 			game_solve(env->g);
 			(*nb_undo) = 0;
 			(*nb_coups)++;
-		} else if (state[SDL_SCANCODE_R] || state[SDL_SCANCODE_F5]) {
+		} else if (state[SDL_SCANCODE_R] || state[SDL_SCANCODE_F5]) {	//R or F5 for restart the game
 			game_restart(env->g);
 			(*nb_undo) = 0;
 			(*nb_coups) = 0;
-		} else if (state[SDL_SCANCODE_W]) {
+		} else if (state[SDL_SCANCODE_W]) {								//W for save the game in the save.txt file
 			game_save(env->g, "save.txt");
 		}
 	}