diff --git a/Makefile b/Makefile
index b387802..94adb6d 100644
--- a/Makefile
+++ b/Makefile
@@ -9,8 +9,16 @@ SRC = src/engine/engine.c \
 	src/engine/engine_internal.c \
 	src/engine/event_handler.c \
 	src/renderer/renderer.c \
+	src/renderer/texture_utility.c \
+	src/entity/entity.c \
+	src/entity/entity_factory.c \
 	src/component.c \
-	src/components/movable_component.c
+	src/components/movable_component.c \
+	src/components/position_component.c \
+	src/scene/scene.c \
+	src/utility/my_strdup.c \
+	src/utility/my_strlen.c \
+	src/utility/arraylen.c
 
 OBJ = $(SRC:%.c=%.o)
 
diff --git a/include/component.h b/include/component.h
index a56fe45..5630036 100644
--- a/include/component.h
+++ b/include/component.h
@@ -17,6 +17,7 @@ typedef struct gc_component
     void (*ctr)(void *component, va_list);
     void (*dtr)(void *component);
     char *(*serialize)(void *component);
+    void (*destroy)(void *component);
 
     struct gc_component *next;
     struct gc_component *prev;
diff --git a/include/engine.h b/include/engine.h
index d376380..5a1ccc3 100644
--- a/include/engine.h
+++ b/include/engine.h
@@ -10,16 +10,17 @@ typedef struct gc_engine gc_engine;
 
 #include "scene.h"
 #include <stdbool.h>
+#include <SFML/Graphics.h>
 
- struct gc_engine
+struct gc_engine
 {
     gc_scene *scene;
-    bool (*is_open)(struct gc_engine *engine);
-    int (*game_loop)(struct gc_engine *engine);
-    int (*change_scene)(struct gc_engine *engine, gc_scene *scene);
+    bool (*is_open)(gc_engine *engine);
+    int (*game_loop)(gc_engine *engine);
+    int (*change_scene)(gc_engine *engine, gc_scene *scene);
 
     sfRenderWindow *window;
-    void (*draw)(struct gc_engine *engine);
+    void (*draw)(gc_engine *engine);
 };
 
 gc_engine *engine_create(char *title);
diff --git a/include/entity.h b/include/entity.h
index 74fa832..34f5179 100644
--- a/include/entity.h
+++ b/include/entity.h
@@ -5,24 +5,27 @@
 ** entity
 */
 
+typedef struct gc_entity gc_entity;
+
 #pragma once
 
 #include "component.h"
 #include "vector2.h"
 #include "tags.h"
 
-typedef struct gc_entity
+struct gc_entity
 {
     int id;
     char *tostr;
     gc_component *components;
-    char *(*serialize)(struct gc_entity *entity);
+    char *(*serialize)(gc_entity *entity);
+    void (*destroy)(gc_entity *entity);
 
-    struct gc_entity *next;
-    struct gc_entity *prev;
-} gc_entity;
+    gc_entity *next;
+    gc_entity *prev;
+};
 
 char *entity_serialize(gc_entity *entity);
 
-gc_entity *entity_create();
+gc_entity *entity_create(void);
 gc_entity *entity_add_component(gc_entity *entity, void *component);
\ No newline at end of file
diff --git a/include/renderer.h b/include/renderer.h
index 6f5aafe..427d7a5 100644
--- a/include/renderer.h
+++ b/include/renderer.h
@@ -9,4 +9,5 @@
 
 #include "engine.h"
 
-void renderer_draw(gc_engine *engine);
\ No newline at end of file
+void renderer_draw(gc_engine *engine);
+gc_texture *texture_create(const char *path);
\ No newline at end of file
diff --git a/include/scene.h b/include/scene.h
index 3bcc3db..bb4d860 100644
--- a/include/scene.h
+++ b/include/scene.h
@@ -8,17 +8,19 @@ typedef struct gc_scene gc_scene;
 
 #pragma once
 
+#include "engine.h"
 #include "entity.h"
 #include "texture.h"
 #include <stdbool.h>
 
 struct gc_scene
 {
-    gc_entity *entity_list;
+    gc_entity *entities;
     gc_texture **textures;
-    int (*add_entity)(gc_engine *engine, struct gc_scene *scene);
+    int (*add_entity)(gc_scene *scene, gc_entity *entity);
+    void (*destroy)(gc_scene *scene);
 };
 
-gc_scene *scene_create(char **textures);
-void scene_add_entity(gc_scene *scene, gc_entity *entity);
+gc_scene *scene_create(const char **textures);
+int scene_add_entity(gc_scene *scene, gc_entity *entity);
 
diff --git a/include/texture.h b/include/texture.h
index f091b10..7292940 100644
--- a/include/texture.h
+++ b/include/texture.h
@@ -5,12 +5,15 @@
 ** texture
 */
 
+typedef struct gc_texture gc_texture;
+
 #pragma once
 
 #include <SFML/Graphics.h>
 
-typedef struct gc_texture
+struct gc_texture
 {
     char *name;
     sfTexture *texture;
-} gc_texture;
\ No newline at end of file
+    void (*destroy)(gc_texture *texture);
+};
\ No newline at end of file
diff --git a/include/utility.h b/include/utility.h
index 57f8578..71ba7db 100644
--- a/include/utility.h
+++ b/include/utility.h
@@ -8,4 +8,5 @@
 #pragma once
 
 char *my_strdup(const char *src);
-int my_strlen(const char *str);
\ No newline at end of file
+int my_strlen(const char *str);
+int arraylen(const char **array);
\ No newline at end of file
diff --git a/src/component.c b/src/component.c
index 8104bc8..483bd49 100644
--- a/src/component.c
+++ b/src/component.c
@@ -23,4 +23,12 @@ void *new_component(void *component, ...)
         va_end(args);
     }
     return (new_cmp);
+}
+
+void destroy(void *component)
+{
+    gc_component *cmp = (gc_component *)component;
+    if (cmp->dtr)
+        cmp->dtr(component);
+    free(cmp);
 }
\ No newline at end of file
diff --git a/src/components/movable_component.c b/src/components/movable_component.c
index ae211cf..e7138a6 100644
--- a/src/components/movable_component.c
+++ b/src/components/movable_component.c
@@ -33,7 +33,7 @@ static char *movable_serialize(void *component)
     return (NULL);
 }
 
-const gc_component movable_component =  {
+const gc_component movable_component = {
     name: "MovableComponent",
     size: sizeof(struct movable_component),
     dependencies: NULL,
diff --git a/src/components/position_component.c b/src/components/position_component.c
index 600a6de..69ddfdb 100644
--- a/src/components/position_component.c
+++ b/src/components/position_component.c
@@ -18,10 +18,11 @@ void position_ctr(void *component, va_list args)
 
 char *position_serialize(void *component)
 {
+    (void)component;
     return (NULL);
 }
 
-const gc_component position_component =  {
+const gc_component position_component = {
     name: "PositionComponent",
     size: sizeof(struct position_component),
     dependencies: NULL,
diff --git a/src/engine/engine_internal.c b/src/engine/engine_internal.c
index f8fce63..2956fd4 100644
--- a/src/engine/engine_internal.c
+++ b/src/engine/engine_internal.c
@@ -8,14 +8,15 @@
 #include <stdbool.h>
 #include "engine.h"
 
- bool engine_is_open(gc_engine *engine)
- {
-     return (sfRenderWindow_isOpen(engine->window));
- }
+bool engine_is_open(gc_engine *engine)
+{
+    return (sfRenderWindow_isOpen(engine->window));
+}
 
- int change_scene(gc_engine *engine, gc_scene *scene)
- {
-     (void)engine;
-     (void)scene;
-     return (0);
- }
\ No newline at end of file
+int change_scene(gc_engine *engine, gc_scene *scene)
+{
+    if (engine->scene)
+        engine->scene->destroy(engine->scene);
+    engine->scene = scene;
+    return (0);
+}
\ No newline at end of file
diff --git a/src/entity/entity.c b/src/entity/entity.c
index 8276d7b..5640124 100644
--- a/src/entity/entity.c
+++ b/src/entity/entity.c
@@ -6,10 +6,23 @@
 */
 
 #include "entity.h"
-#include <stddef.h>
+#include <stdlib.h>
 
 char *entity_serialize(gc_entity *entity)
 {
     (void)entity;
     return (NULL);
+}
+
+void destroy(gc_entity *entity)
+{
+    gc_component *next = NULL;
+
+    for (gc_component *cmp = entity->components; cmp; cmp = next) {
+        next = cmp->next;
+        cmp->destroy(cmp);
+    }
+    if (entity->tostr)
+        free(entity->tostr);
+    free(entity);
 }
\ No newline at end of file
diff --git a/src/entity/entity_factory.c b/src/entity/entity_factory.c
index 673dd5f..e0230f3 100644
--- a/src/entity/entity_factory.c
+++ b/src/entity/entity_factory.c
@@ -7,11 +7,11 @@
 
 #include "entity.h"
 #include "component.h"
-#include <stddef.h>
+#include <stdlib.h>
 
 static unsigned int next_id = 0;
 
-gc_entity *entity_create()
+gc_entity *entity_create(void)
 {
     gc_entity *entity = malloc(sizeof(gc_entity));
 
diff --git a/src/renderer/renderer_loader.c b/src/renderer/texture_utility.c
similarity index 61%
rename from src/renderer/renderer_loader.c
rename to src/renderer/texture_utility.c
index 9840e3d..ccb4345 100644
--- a/src/renderer/renderer_loader.c
+++ b/src/renderer/texture_utility.c
@@ -8,8 +8,17 @@
 #include "texture.h"
 #include "utility.h"
 #include <SFML/Graphics.h>
+#include <stdlib.h>
 
-gc_texture *renderer_load_texture(char *path)
+
+void texture_destroy(gc_texture *texture)
+{
+    sfTexture_destroy(texture->texture);
+    free(texture->name);
+    free(texture);
+}
+
+gc_texture *texture_create(const char *path)
 {
     gc_texture *texture = malloc(sizeof(gc_texture));
 
@@ -17,5 +26,6 @@ gc_texture *renderer_load_texture(char *path)
         return (NULL);
     texture->texture = sfTexture_createFromFile(path, NULL);
     texture->name = my_strdup(path);
+    texture->destroy = &texture_destroy;
     return (texture);
 }
\ No newline at end of file
diff --git a/src/scene/scene.c b/src/scene/scene.c
index ae67485..9c5b3ba 100644
--- a/src/scene/scene.c
+++ b/src/scene/scene.c
@@ -7,46 +7,65 @@
 
 #include "engine.h"
 #include "entity.h"
-#include <stdbool.h>
+#include "renderer.h"
+#include "utility.h"
+#include <stdlib.h>
 
-void scene_add_entity(gc_scene *scene, gc_entity *entity)
+int scene_add_entity(gc_scene *scene, gc_entity *entity)
 {
     gc_entity *list;
 
     if (!scene)
-        return;
-    list = scene->entity_list;
+        return (-1);
+    list = scene->entities;
     if (!list) {
-        scene->entity_list = entity;
+        scene->entities = entity;
     } else {
         while (list->next)
             list = list->next;
         list->next = entity;
         entity->prev = list;
     }
+    return (1);
 }
 
-bool scene_load_textures(gc_scene *scene, char **textures)
+int scene_load_textures(gc_scene *scene, const char **textures)
 {
     gc_texture *texture;
 
+    scene->textures = malloc(sizeof(gc_texture) * (arraylen(textures)));
     for (int i = 0; textures[i]; i++) {
-        texture = renderer_load_texture(textures[i]);
+        texture = texture_create(textures[i]);
         if (!texture)
-            return (NULL);
+            return (-1);
         scene->textures[i] = texture;
     }
+    return (0);
 }
 
-gc_scene *scene_create(char **textures)
+gc_scene *scene_create(const char **textures)
 {
     gc_scene *scene = malloc(sizeof(gc_scene));
 
     if (!scene)
         return (NULL);
-    if (!scene_load_textures(scene, textures))
+    if (scene_load_textures(scene, textures) < 0)
         return (NULL);
-    scene->entity_list = NULL;
+    scene->entities = NULL;
     scene->add_entity = &scene_add_entity;
     return (scene);
+}
+
+void scene_destroy(gc_scene *scene)
+{
+    gc_entity *next = NULL;
+
+    for (gc_entity *entity = scene->entities; entity; entity = next) {
+        next = entity->next;
+        entity->destroy(entity);
+    }
+    for (int i = 0; scene->textures[i]; i++) {
+        scene->textures[i]->destroy(scene->textures[i]);
+    }
+    free(scene);
 }
\ No newline at end of file
diff --git a/src/utility/arraylen.c b/src/utility/arraylen.c
new file mode 100644
index 0000000..83aae12
--- /dev/null
+++ b/src/utility/arraylen.c
@@ -0,0 +1,15 @@
+/*
+** EPITECH PROJECT, 2019
+** MUL_my_runner_2019
+** File description:
+** arraylen
+*/
+
+int arraylen(const char **array)
+{
+    int i = 0;
+
+    while (array[i])
+        i++;
+    return (i);
+}
\ No newline at end of file