Add about level

src/levels/level_about/about_entity.c

@@ -0,0 +1,87 @@
+#include "about_entity.h"
+
+#include <stddef.h>
+
+#include <furi.h>
+
+#include "../../game.h"
+
+static void
+about_update(Entity* self, GameManager* manager, void* _entity_context)
+{
+    UNUSED(self);
+    UNUSED(_entity_context);
+
+    GameContext* game_context = game_manager_game_context_get(manager);
+
+    InputState input = game_manager_input_get(manager);
+    if (input.pressed & (GameKeyOk | GameKeyBack | GameKeyLeft)) {
+        game_manager_next_level_set(manager, game_context->levels.menu);
+    }
+}
+
+static void
+about_render(Entity* self,
+             GameManager* manager,
+             Canvas* canvas,
+             void* _entity_context)
+{
+    UNUSED(self);
+    UNUSED(manager);
+
+    canvas_set_color(canvas, ColorBlack);
+    canvas_set_font(canvas, FontSecondary);
+
+    // Calculate positions
+    const size_t logo_size = 10;
+    const size_t space = 3;
+    size_t title_width =
+      logo_size + space + canvas_string_width(canvas, GAME_NAME);
+    int32_t logo_x = canvas_width(canvas) / 2 - title_width / 2;
+    int32_t title_x = logo_x + logo_size + space;
+    int32_t font_height = canvas_current_font_height(canvas);
+    int32_t first_line_y = 17;
+
+    // Draw logo
+    AboutContext* entity_context = _entity_context;
+    canvas_draw_sprite(canvas, entity_context->logo_sprite, logo_x, 0);
+
+    // Draw game name
+    canvas_set_font(canvas, FontPrimary);
+    canvas_draw_str_aligned(canvas, title_x, 1, AlignLeft, AlignTop, GAME_NAME);
+
+    // Draw authors
+    canvas_set_font(canvas, FontSecondary);
+    canvas_draw_str_aligned(canvas,
+                            64,
+                            first_line_y,
+                            AlignCenter,
+                            AlignTop,
+                            "Developed by Ivan Barsukov");
+    canvas_draw_str_aligned(canvas,
+                            64,
+                            first_line_y + font_height,
+                            AlignCenter,
+                            AlignTop,
+                            "Inspired by David Martinez");
+    canvas_draw_str_aligned(canvas,
+                            64,
+                            first_line_y + font_height * 2,
+                            AlignCenter,
+                            AlignTop,
+                            "Graphics by DarKaoz");
+
+    // Draw link
+    canvas_draw_str_aligned(
+      canvas, 64, 62, AlignCenter, AlignBottom, "github.com/ivanbarsukov");
+}
+
+const EntityDescription about_description = {
+    .start = NULL,
+    .stop = NULL,
+    .update = about_update,
+    .render = about_render,
+    .collision = NULL,
+    .event = NULL,
+    .context_size = sizeof(AboutContext),
+};

src/levels/level_about/about_entity.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include "../../engine/entity.h"
+
+typedef struct Sprite Sprite;
+
+typedef struct
+{
+    Sprite* logo_sprite;
+} AboutContext;
+
+extern const EntityDescription about_description;

src/levels/level_about/level_about.c

@@ -0,0 +1,39 @@
+#include "level_about.h"
+
+#include <stddef.h>
+
+#include "../../game.h"
+
+#include "about_entity.h"
+
+static void
+level_about_alloc(Level* level, GameManager* manager, void* context)
+{
+    UNUSED(manager);
+    UNUSED(context);
+
+    Entity* entity = level_add_entity(level, &about_description);
+    AboutContext* entity_context = entity_context_get(entity);
+    entity_context->logo_sprite =
+      game_manager_sprite_load(manager, "icon.fxbm");
+
+    FURI_LOG_D(GAME_NAME, "About level allocated");
+}
+
+static void
+level_about_start(Level* level, GameManager* manager, void* context)
+{
+    UNUSED(level);
+    UNUSED(manager);
+    UNUSED(context);
+
+    FURI_LOG_D(GAME_NAME, "About level started");
+}
+
+const LevelBehaviour level_about = {
+    .alloc = level_about_alloc,
+    .free = NULL,
+    .start = level_about_start,
+    .stop = NULL,
+    .context_size = 0,
+};

src/levels/level_about/level_about.h

@@ -0,0 +1,5 @@
+#pragma once
+
+#include "../../engine/level.h"
+
+extern const LevelBehaviour level_about;