Mercurial > hg > ascension / changeset

--- a/demo/snake/snake.c	Fri Aug 22 23:27:36 2025 +0200
+++ b/demo/snake/snake.c	Sat Aug 23 21:01:41 2025 +0200
@@ -191,6 +191,37 @@
     return node;
 }
 
+static void game_over_text_keep_centered(AscBehavior *behavior) {
+    if (!asc_active_window->resized) return;
+
+    // TODO: if we could react on some sort of "unhidden" event, we could pause this behavior while hidden
+
+    AscSceneNode *node = behavior->node;
+    // center the "game over" text in the game field viewport
+    const asc_rect main_scene_viewport = MAIN_SCENE->camera.viewport;
+    asc_scene_node_set_position2f(node, ASC_VEC2F(
+        main_scene_viewport.pos.x + main_scene_viewport.size.x / 2.f,
+        main_scene_viewport.pos.y + main_scene_viewport.size.y / 2.f - 36
+    ));
+}
+
+static AscSceneNode *game_over_create_text(void) {
+    AscSceneNode *node = asc_text(
+            .name = "game_over_text",
+            .text = "Game Over\nPress R to Restart",
+            .color = ASC_RGB(1, 1, 1),
+            .font = asc_font(ASC_FONT_REGULAR, 36),
+            .alignment = ASC_TEXT_ALIGN_CENTER,
+            .centered = true,
+        );
+
+    asc_scene_node_hide(node);
+    asc_behavior_add(node, game_over_text_keep_centered);
+    asc_ui_add_node(node);
+
+    return node;
+}
+
 static bool game_field_tile_chown(asc_vec2u coords, Player *player) {
     unsigned x = coords.x, y = coords.y;
     asc_ptr_cast(AscRectangle, tile, game.field->nodes[x][y]);
@@ -546,20 +577,7 @@
     asc_scene_node_hide(fps_counter);
 
     // create game over text
-    AscSceneNode *text_game_over = asc_text(
-        .name = "game_over_text",
-        .text = "Game Over\nPress R to Restart",
-        .color = ASC_RGB(1, 1, 1),
-        .font = asc_font(ASC_FONT_REGULAR, 36),
-        .alignment = ASC_TEXT_ALIGN_CENTER,
-        .centered = true,
-        .x = (GAME_FIELD_SIZE+2)*GAME_FIELD_TILE_SIZE/2,
-        .y = (GAME_FIELD_SIZE+2)*GAME_FIELD_TILE_SIZE/2 - 60,
-    );
-    asc_scene_node_hide(text_game_over);
-    // TODO: add as a UI node and add a behavior which centers the node in the main scenes viewport
-    //       otherwise we won't be able to implement a moving camera in the future
-    asc_scene_add_node(MAIN_SCENE, text_game_over);
+    AscSceneNode *text_game_over = game_over_create_text();
 
     // initialize the game state
     // TODO: add a main menu and start with the menu