diff --git a/assets-cg/converters.py b/assets-cg/converters.py
index ff5481d..f726a17 100644
--- a/assets-cg/converters.py
+++ b/assets-cg/converters.py
@@ -9,14 +9,13 @@ def convert(input, output, params, target):
 		return 1
 
 def convert_map(input, output, params, target):
+	TILE_BRIDGE = -1 #only for bridge detection to avoid solid behind
 	TILE_AIR = 0
 	TILE_SOLID = 1
 	TILE_DOOR_IN = 2
 	TILE_DOOR_OUT = 3
 	TILE_TALKABLE = 4
 
-	TILE_BRIDGE = -1 #only for bridge detection to avoid solid behind
-
 	with open(input, "r") as jsonData:
 		data = json.load(jsonData)
 
@@ -34,41 +33,37 @@ def convert_map(input, output, params, target):
 	tileset.close()
 
 	tile_value = {}
-
-	#create a dictionnary between tile id-type
+	#create a dictionnary {tile id:type}
 	for i in data_tileset["tiles"]:
-		try:
-			id = i["id"]+1
-			type = i["type"]
+		id = i["id"]+1
+		type = i["type"]
 
-			if type == "air":
-				value = TILE_AIR
-			elif type == "solid":
-				value = TILE_SOLID
-			elif type == "door_in":
-				value = TILE_DOOR_IN
-			elif type == "door_out":
-				value = TILE_DOOR_OUT
-			elif type == "talkable":
-				value = TILE_TALKABLE
-			elif type == "bridge":
-				value = TILE_BRIDGE
-			else:
-				value = TILE_AIR
+		if type == "air":
+			value = TILE_AIR
+		elif type == "solid":
+			value = TILE_SOLID
+		elif type == "door_in":
+			value = TILE_DOOR_IN
+		elif type == "door_out":
+			value = TILE_DOOR_OUT
+		elif type == "talkable":
+			value = TILE_TALKABLE
+		elif type == "bridge":
+			value = TILE_BRIDGE
+		else:
+			value = TILE_AIR
 
-			tile_value[id] = value
-		except KeyError:
-			pass
+		tile_value[id] = value
 
-	#Extract from the json the width, height and layers of the map
+	#Extract from the json the width, height
 	w, h = data["width"], data["height"]
 	indexObjectlayer = None
 
+	#nbTileLayer is the number of "true" layers (without ObjectsLayer)
 	nbTilelayer = len(data["layers"])
 	for i in range(nbTilelayer):
 		try:
 			data["layers"][i]["data"]
-			#nbTileLayer is the number of "true" layers (without ObjectsLayer)
 			nbTilelayer = i+1
 		except KeyError:
 			indexObjectlayer = i
@@ -117,7 +112,7 @@ def convert_map(input, output, params, target):
 		info_map += fxconv.u16(maxValue)
 		maxValue = 0
 		bridge = False
-	structMap += fxconv.ref(info_map)
+	structMap += fxconv.ptr(info_map)
 
 	#generate the array of tiles from the layer
 	for i in range(nbTilelayer):
@@ -126,7 +121,7 @@ def convert_map(input, output, params, target):
 		for tile in layer["data"]:
 			layer_data += fxconv.u16(tile)
 
-		structMap += fxconv.ref(layer_data)
+		structMap += fxconv.ptr(layer_data)
 
 	#generate !
 	fxconv.elf(structMap, output, "_" + params["name"], **target)
\ No newline at end of file
diff --git a/assets-cg/maps/inside/interior_1.tmx b/assets-cg/maps/inside/interior_1.tmx
index 599ff4f..d084a18 100644
--- a/assets-cg/maps/inside/interior_1.tmx
+++ b/assets-cg/maps/inside/interior_1.tmx
@@ -50,7 +50,8 @@
   <object id="25" gid="267" x="112" y="112" width="16" height="16">
    <properties>
     <property name="name" value="Tituya"/>
-    <property name="text" value="Salutation !"/>
+    <property name="text">Salutation !
+Ça va ?</property>
    </properties>
   </object>
  </objectgroup>
diff --git a/include/define.h b/include/define.h
index 1cd65b4..b0ffe0b 100644
--- a/include/define.h
+++ b/include/define.h
@@ -1,4 +1,5 @@
+#pragma once
 /*the width of the tileset*/
 #define TILESET_WIDTH 29
 /*the size of one tile*/
-#define TILE_SIZE 16
+#define TILE_SIZE 16
\ No newline at end of file
diff --git a/include/game.h b/include/game.h
index 9f3f713..e9d7cdb 100644
--- a/include/game.h
+++ b/include/game.h
@@ -12,9 +12,6 @@ struct Game {
 	int background;
 };
 
-/*get the input with a timeout*/
-int get_inputs(void);
-
 enum direction {
 	DIR_DOWN = 0,
 	DIR_LEFT = 1,
@@ -23,3 +20,7 @@ enum direction {
 	ACTION_SHIFT = 4,
 	ACTION_ALPHA = 5
 };
+
+/*get the input with a timeout*/
+int get_inputs(void);
+struct Game init_game(struct Player *player);
\ No newline at end of file
diff --git a/include/map.h b/include/map.h
index 38b2aa8..c72f950 100644
--- a/include/map.h
+++ b/include/map.h
@@ -1,6 +1,5 @@
 #pragma once
 #include <gint/display.h>
-#include <stdbool.h>
 #include "engine.h"
 
 struct Map {
diff --git a/include/player.h b/include/player.h
index 33bd046..a24d674 100644
--- a/include/player.h
+++ b/include/player.h
@@ -24,3 +24,4 @@ struct Player {
 /*return the info tile value the player is facing to*/
 int player_facing(struct Game const *game);
 void set_player_xy(struct Player *player, int x, int y);
+struct Player init_player(void);
diff --git a/include/talkable.h b/include/talkable.h
index b833529..451904d 100644
--- a/include/talkable.h
+++ b/include/talkable.h
@@ -1,5 +1,6 @@
 #pragma once
 #include "map.h"
+
 struct Talkable {
 	/*the position of the tile*/
 	int x, y;
diff --git a/include/util.h b/include/util.h
index 7e80bc2..dbb22a5 100644
--- a/include/util.h
+++ b/include/util.h
@@ -1,3 +1,4 @@
 #pragma once
 
+/*wait for a specified input key*/
 void wait_for_input(int input);
\ No newline at end of file
diff --git a/include/vec2.h b/include/vec2.h
index 7325a71..6e38cc7 100644
--- a/include/vec2.h
+++ b/include/vec2.h
@@ -10,10 +10,8 @@ struct Vec2f {
 	float y;
 };
 
-#define VEC2(x, y)                                                             \
-	(struct Vec2) { x, y }
-#define VEC2F(x, y)                                                            \
-	(struct Vec2f) { x, y }
+#define VEC2(x, y) (struct Vec2) { x, y }
+#define VEC2F(x, y) (struct Vec2f) { x, y }
 #define VEC2Z  VEC2(0, 0)
 #define VEC2FZ VEC2F(0.0, 0.0)
 
diff --git a/src/animation.c b/src/animation.c
index e8f9073..6a7f5e6 100644
--- a/src/animation.c
+++ b/src/animation.c
@@ -1,8 +1,8 @@
 #include <gint/display.h>
 #include <gint/defs/util.h>
+
 #include "animation.h"
 #include "engine.h"
-#include "game.h"
 
 struct Sheet
 {
diff --git a/src/camera.c b/src/camera.c
index a020b07..d17f8fc 100644
--- a/src/camera.c
+++ b/src/camera.c
@@ -1,5 +1,4 @@
 #include "vec2.h"
-#include "define.h"
 #include "camera.h"
 
 struct Camera camera_new(struct Vec2f *target) {
diff --git a/src/engine.c b/src/engine.c
index 0e9a102..99ff590 100644
--- a/src/engine.c
+++ b/src/engine.c
@@ -1,5 +1,6 @@
 #include <gint/display.h>
 #include <gint/keyboard.h>
+
 #include "engine.h"
 #include "game.h"
 #include "map.h"
diff --git a/src/game.c b/src/game.c
index 5ab6391..ff16cb3 100644
--- a/src/game.c
+++ b/src/game.c
@@ -1,7 +1,22 @@
 #include <gint/display.h>
 #include <gint/keyboard.h>
+
 #include "game.h"
 #include "player.h"
+#include "map.h"
+
+struct Game init_game(struct Player *player) {
+
+    extern struct Map *maps[];
+
+    struct Game game = {
+        .map = maps[0],
+        .player = player,
+        .camera = camera_new(&player->pos_visual),
+        .background = C_WHITE
+    };
+    return game;
+}
 
 /*get the input with a timeout*/
 int get_inputs(void) {
diff --git a/src/main.c b/src/main.c
index a0791e0..7ba8853 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,21 +1,11 @@
 #include <gint/display.h>
 #include <gint/keyboard.h>
-#include "game.h"
-#include "map.h"
-#include "engine.h"
-#include "player.h"
-#include "animation.h"
-#include "camera.h"
-#include "define.h"
-
 #include <gint/timer.h>
 #include <gint/clock.h>
 
-extern struct Map map_1;
-
-struct Map *maps[] = {
-	&map_1,
-};
+#include "game.h"
+#include "engine.h"
+#include "player.h"
 
 static int callback_tick(volatile int *tick) {
 	*tick = 1;
@@ -24,25 +14,8 @@ static int callback_tick(volatile int *tick) {
 
 int main(void) {
 	/*Structure definition*/
-	struct Player player = {
-		.pos = VEC2(32, 30),
-		.pos_visual = VEC2F(32*TILE_SIZE, 30*TILE_SIZE),
-		.x_mid = 6,
-		.y_mid = 1,
-		.show_x = 12,
-		.show_y = 7,
-		.direction = DIR_DOWN,
-		.anim.function = anim_player_idle,
-		.anim.dir = DIR_DOWN
-	};
-	player.idle = !anim_player_idle(&player.anim, 1);
-
-	struct Game game = {
-		.map = maps[0],
-		.player = &player,
-		.camera = camera_new(&player.pos_visual),
-		.background = C_WHITE
-	};
+	struct Player player = init_player();
+	struct Game game = init_game(&player);
 
 	/*Timer*/
 	static volatile int tick = 1;
diff --git a/src/map.c b/src/map.c
index d4635ad..f7cbfe2 100644
--- a/src/map.c
+++ b/src/map.c
@@ -1,9 +1,13 @@
 #include "map.h"
-#include "engine.h"
 #include "player.h"
-#include "camera.h"
 #include "define.h"
 
+extern struct Map map_1;
+
+struct Map *maps[] = {
+	&map_1,
+};
+
 /*check if a tile is walkable*/
 int map_walkable(struct Map const *map, int x, int y) {
 	int tile = map->info_map[x + map->w * y];
@@ -16,8 +20,10 @@ int map_get_player_tile(struct Game const *game) {
 	return game->map->info_map[game->player->pos.x + game->map->w * game->player->pos.y];
 }
 
+/*generate the interior*/
 void generate_interior_map(struct Game *game) {
 	extern struct Map in_1;
+
 	game->map = &in_1;
 	set_player_xy(game->player, 3,3);
 	game->camera.pos.x = in_1.w/2 * TILE_SIZE + game->player->x_mid;
diff --git a/src/player.c b/src/player.c
index 8d665f3..a0d2757 100644
--- a/src/player.c
+++ b/src/player.c
@@ -1,8 +1,23 @@
 #include "player.h"
 #include "define.h"
-#include "engine.h"
 #include "map.h"
-#include "game.h"
+
+struct Player init_player(void) {
+	struct Player player = {
+		.pos = VEC2(32, 30),
+		.pos_visual = VEC2F(32*TILE_SIZE, 30*TILE_SIZE),
+		.x_mid = 6,
+		.y_mid = 1,
+		.show_x = 12,
+		.show_y = 7,
+		.direction = DIR_DOWN,
+		.anim.function = anim_player_idle,
+		.anim.dir = DIR_DOWN
+	};
+	player.idle = !anim_player_idle(&player.anim, 1);
+
+	return player;
+}
 
 /*
 return the info tile value the player is facing to
@@ -23,7 +38,6 @@ int player_facing(struct Game const *game) {
 	return TILE_SOLID;
 }
 
-/* lol */
 void set_player_xy(struct Player *p, int x, int y) {
 	p->pos.x = x;
 	p->pos.y = y;
diff --git a/src/talkable.c b/src/talkable.c
index a46dda9..167b622 100644
--- a/src/talkable.c
+++ b/src/talkable.c
@@ -1,9 +1,8 @@
 #include <gint/display.h>
 #include <gint/keyboard.h>
 #include <string.h>
+
 #include "talkable.h"
-#include "engine.h"
-#include "map.h"
 #include "util.h"
 
 struct Talkable default_value = {
diff --git a/src/util.c b/src/util.c
index 733d16f..1f3c940 100644
--- a/src/util.c
+++ b/src/util.c
@@ -1,6 +1,8 @@
 #include <gint/keyboard.h>
+
 #include "util.h"
 
+/*wait for a specified input key*/
 void wait_for_input(int input) {
 	int buffer = 1;
 	while(1) {
diff --git a/src/vec2.c b/src/vec2.c
index 973371e..6525488 100644
--- a/src/vec2.c
+++ b/src/vec2.c
@@ -1,42 +1,34 @@
 #include "vec2.h"
 
-struct Vec2 vec2_add(struct Vec2 v1, struct Vec2 v2)
-{
+struct Vec2 vec2_add(struct Vec2 v1, struct Vec2 v2) {
 	return VEC2(v1.x + v2.x, v1.y + v2.y);
 }
 
-struct Vec2f vec2f_add(struct Vec2f v1, struct Vec2f v2)
-{
+struct Vec2f vec2f_add(struct Vec2f v1, struct Vec2f v2) {
 	return VEC2F(v1.x + v2.x, v1.y + v2.y);
 }
 
-struct Vec2 vec2_sub(struct Vec2 v1, struct Vec2 v2)
-{
+struct Vec2 vec2_sub(struct Vec2 v1, struct Vec2 v2) {
 	return VEC2(v1.x - v2.x, v1.y - v2.y);
 }
 
-struct Vec2f vec2f_sub(struct Vec2f v1, struct Vec2f v2)
-{
+struct Vec2f vec2f_sub(struct Vec2f v1, struct Vec2f v2) {
 	return VEC2F(v1.x - v2.x, v1.y - v2.y);
 }
 
-struct Vec2 vec2_mul(struct Vec2 v, int scale)
-{
+struct Vec2 vec2_mul(struct Vec2 v, int scale) {
 	return VEC2(v.x * scale, v.y * scale);
 }
 
-struct Vec2f vec2f_mul(struct Vec2f v, int scale)
-{
+struct Vec2f vec2f_mul(struct Vec2f v, int scale) {
 	return VEC2F(v.x * scale, v.y * scale);
 }
 
-struct Vec2 vec2f_vec2(struct Vec2f v)
-{
+struct Vec2 vec2f_vec2(struct Vec2f v) {
 	return VEC2(v.x, v.y);
 }
 
-struct Vec2f vec2_vec2f(struct Vec2 v)
-{
+struct Vec2f vec2_vec2f(struct Vec2 v) {
 	return VEC2F(v.x, v.y);
 }