Add the first game! 2048 game!

Actual game implementation added as a submodule from https://github.com/100askTeam/lv_lib_100ask.

.gitmodules

@@ -7,3 +7,6 @@
 [submodule "app/src/ext_drivers/bmp581/BMP5-Sensor-API"]
 	path = app/src/ext_drivers/bmp581/BMP5-Sensor-API
 	url = https://github.com/boschsensortec/BMP5-Sensor-API.git
+[submodule "app/src/applications/2048/2048_lib"]
+	path = app/src/applications/2048/2048_lib
+	url = https://github.com/100askTeam/lv_lib_100ask.git

app/src/applications/2048/CMakeLists.txt

@@ -0,0 +1,6 @@
+FILE(GLOB app_sources *.c)
+target_sources(app PRIVATE ${app_sources})
+set(LV_USE_100ASK_2048 "1")
+target_include_directories(app PRIVATE 2048_lib/src/lv_100ask_2048)
+target_sources(app PRIVATE 2048_lib/src/lv_100ask_2048/lv_100ask_2048.c)
+

app/src/applications/2048/game_2048_app.c

@@ -0,0 +1,37 @@
+#include <2048/game_2048_ui.h>
+#include <application_manager.h>
+#include <zephyr/kernel.h>
+#include <zephyr/init.h>
+#include <lv_100ask_2048.h>
+
+// Functions needed for all applications
+static void game_2048_app_start(lv_obj_t *root, lv_group_t *group);
+static void game_2048_app_stop(void);
+
+LV_IMG_DECLARE(icon_2048);
+
+static application_t app = {
+    .name = "2048",
+    .icon = &icon_2048,
+    .start_func = game_2048_app_start,
+    .stop_func = game_2048_app_stop
+};
+
+static void game_2048_app_start(lv_obj_t *root, lv_group_t *group)
+{
+    game_2048_ui_show(root);
+}
+
+static void game_2048_app_stop(void)
+{
+    game_2048_ui_remove();
+}
+
+static int game_2048_app_add(const struct device *arg)
+{
+    application_manager_add_application(&app);
+
+    return 0;
+}
+
+SYS_INIT(game_2048_app_add, APPLICATION, CONFIG_APPLICATION_INIT_PRIORITY);

app/src/applications/2048/game_2048_ui.c

@@ -0,0 +1,61 @@
+#include <2048/game_2048_ui.h>
+#include <lvgl.h>
+#include <lv_100ask_2048.h>
+
+static void game_2048_event_cb(lv_event_t * e);
+
+static lv_obj_t *root_page = NULL;
+
+void game_2048_ui_show(lv_obj_t *root)
+{
+    assert(root_page == NULL);
+    lv_obj_t* obj_2048;
+
+    // Create the root container
+    root_page = lv_obj_create(root);
+    // Remove the default border
+    lv_obj_set_style_border_width(root_page, 0, LV_PART_MAIN);
+    // Make root container fill the screen
+    lv_obj_set_size(root_page, LV_PCT(100), LV_PCT(100));
+    // Don't want it to be scollable. Putting anything close the edges
+    // then LVGL automatically makes the page scrollable and shows a scroll bar.
+    // Does not look very good on the round display.
+    lv_obj_set_scrollbar_mode(root_page, LV_SCROLLBAR_MODE_OFF);
+
+    lv_obj_set_style_bg_color(root_page, lv_color_hex(0xb3a397), LV_PART_MAIN); // Match 2048 game background color
+
+    obj_2048 = lv_100ask_2048_create(root_page);
+    lv_obj_set_size(obj_2048, 200, 200);
+    lv_obj_center(obj_2048);
+    lv_obj_set_style_outline_width(obj_2048, 0, LV_STATE_FOCUS_KEY | LV_STATE_DEFAULT);
+
+    // Score
+    lv_obj_t * label = lv_label_create(root_page);
+    lv_label_set_recolor(label, true); 
+    lv_label_set_text_fmt(label, "#ff00ff %d #", lv_100ask_2048_get_score(obj_2048));
+    lv_obj_align_to(label, obj_2048, LV_ALIGN_OUT_TOP_MID, -20, 0);
+    lv_obj_add_event_cb(obj_2048, game_2048_event_cb, LV_EVENT_ALL, label);
+}
+
+void game_2048_ui_remove(void)
+{
+    lv_obj_del(root_page);
+    root_page = NULL;
+}
+
+static void game_2048_event_cb(lv_event_t * e)
+{
+    lv_event_code_t code = lv_event_get_code(e);
+    lv_obj_t * obj_2048 = lv_event_get_target(e);
+    lv_obj_t * label = lv_event_get_user_data(e);
+
+    if (code == LV_EVENT_VALUE_CHANGED) {
+        if (lv_100ask_2048_get_best_tile(obj_2048) >= 2048) {
+            lv_label_set_text(label, "#00b329 YOU WIN! #");
+        } else if(lv_100ask_2048_get_status(obj_2048)) {
+            lv_label_set_text(label, "#ff0000 GAME OVER! #");
+        } else {
+            lv_label_set_text_fmt(label, "#ff00ff %d #", lv_100ask_2048_get_score(obj_2048));
+        }
+    }
+}

app/src/applications/2048/game_2048_ui.h

@@ -0,0 +1,8 @@
+#pragma once
+
+#include <inttypes.h>
+#include <lvgl.h>
+
+void game_2048_ui_show(lv_obj_t *root);
+
+void game_2048_ui_remove(void);