Mercurial > hg > ascension / file diff

--- a/test/snake/snake.c	Mon Apr 28 21:13:01 2025 +0200
+++ b/test/snake/snake.c	Tue Apr 29 21:51:29 2025 +0200
@@ -32,12 +32,15 @@
 
 enum Textures2d {
     TEX_SHIP = 0,
+    TEX_BACKDROP,
     TEX2D_COUNT
 };
 static AscTexture tex2d[TEX2D_COUNT];
 #define TEXTURE_SHIP &tex2d[TEX_SHIP]
+#define TEXTURE_BACKDROP &tex2d[TEX_BACKDROP]
 
-#define MAIN_SCENE asc_window_scene(0)
+#define BACKDROP_SCENE asc_window_scene(0)
+#define MAIN_SCENE asc_window_scene(1)
 
 static void destroy_textures(void *dummy) {
     asc_texture_destroy(tex2d, TEX2D_COUNT);
@@ -46,6 +49,7 @@
 static void init_textures(void) {
     asc_texture_init_2d(tex2d, TEX2D_COUNT);
     asc_texture_from_file(TEXTURE_SHIP, "ship.png");
+    asc_texture_from_file(TEXTURE_BACKDROP, "backdrop.png");
     cxMempoolRegister(asc_active_glctx_mpool, tex2d, destroy_textures);
 }
 
@@ -76,9 +80,24 @@
     }
 }
 
+static void scale_backdrop(AscSceneNode *node) {
+    // scale the backdrop to the size of the window
+    if (asc_active_window->resized) {
+        asc_vec2i window_size = asc_active_window->dimensions;
+        asc_set_scale2d(node, window_size.width, window_size.height);
+        // TODO: implement texture repetition
+    }
+}
+
+static void create_backdrop(void) {
+    AscSceneNode *node = asc_sprite(.texture = TEXTURE_BACKDROP);
+    asc_scene_add_behavior(node, scale_backdrop);
+    asc_scene_add_node(BACKDROP_SCENE, node);
+}
+
 static void create_fps_counter(void) {
     asc_font(ASC_FONT_REGULAR, 12);
-    asc_ink_rgba(128, 128, 128, 196);
+    asc_ink_rgba(224, 224, 224, 196);
     AscSceneNode *node = asc_text();
     asc_scene_add_behavior(node, update_fps_counter);
     asc_add_ui_node(node);
@@ -102,7 +121,6 @@
         .width = 64,
         .height = 64
     );
-
     asc_scene_add_node(MAIN_SCENE, sprite);
 
     // TODO: return something
@@ -149,15 +167,23 @@
     settings.title = "Snake";
     asc_window_initialize(0, &settings);
 
-    // initialize the main scene (a 500x500 game field)
+    // load textures
+    init_textures();
+
+    // initialize the scenes
+    const int game_field_size = 500;
+    asc_scene_init(BACKDROP_SCENE, (AscCameraParams) {
+        .type = ASC_CAMERA_ORTHO,
+        .projection_update_func = asc_camera_ortho_update_size
+    });
     asc_scene_init(MAIN_SCENE, (AscCameraParams) {
         .type = ASC_CAMERA_ORTHO,
-        .ortho.rect = (asc_recti){0, 0, 500, 500},
+        .ortho.rect = (asc_recti){0, 0, game_field_size, game_field_size},
         .viewport_update_func = update_viewport_for_window_resize
     });
 
-    // load textures
-    init_textures();
+    // backdrop for letterbox/pillarbox
+    create_backdrop();
 
     // create UI elements
     create_fps_counter();