Add game over dialog. (#36)

* Fix class/struct mismatch, upgrade bave to v0.5.1.

* Remove `IEnemyDeathListener`.

* Add `ui::Dialog`.

* Add game over dialog.

Author: karnkaul

CMakeLists.txt

@@ -11,7 +11,7 @@ include(FetchContent)
 FetchContent_Declare(
   bave
   GIT_REPOSITORY https://github.com/karnkaul/bave
-  GIT_TAG v0.5.0
+  GIT_TAG v0.5.1
   SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ext/bave"
 )
 

assets/styles.json

@@ -4,7 +4,7 @@
     "grey": "#535151ff",
     "mocha": "#6f5a48ff",
     "milk": "#e5cdaeff",
-    "ice": "#0xd6dbe1e1",
+    "ice": "#d6dbe1e1",
     "orange": "#f75c03ff",
     "gun_beam": "#bc96e6ff"
   },
@@ -43,6 +43,18 @@
       "padding": 5
     }
   },
+  "dialogs": {
+    "default": {
+      "footer_padding": [
+        20.000000,
+        10.000000
+      ],
+      "corner_ratio": 0.25,
+      "background_tint": "#e5cdaeff",
+      "outline_tint": "#231d2aff",
+      "content_text_tint": "#231d2aff"
+    }
+  },
   "loading_screen": {
     "background_tint": "#231d2aff",
     "spinner": {

src/spaced/spaced/game/enemy.hpp

@@ -3,7 +3,6 @@
 #include <bave/graphics/shape.hpp>
 #include <bave/platform.hpp>
 #include <spaced/game/damageable.hpp>
-#include <spaced/game/enemy_death.hpp>
 #include <spaced/game/health.hpp>
 #include <spaced/services/layout.hpp>
 #include <spaced/services/services.hpp>

src/spaced/spaced/game/enemy_death.hpp

@@ -55,7 +55,7 @@ void Player::tick(State const& state, Seconds const dt) {
 
 	for (auto const& target : state.targets) {
 		if (is_intersecting(target->get_bounds(), ship.get_bounds())) {
-			on_death();
+			on_death(dt);
 			target->force_death();
 			return;
 		}
@@ -92,10 +92,11 @@ void Player::set_controller(std::unique_ptr<IController> controller) {
 	m_controller = std::move(controller);
 }
 
-void Player::on_death() {
+void Player::on_death(Seconds const dt) {
 	health = 0.0f;
 	m_death = m_death_source;
 	m_death->set_position(ship.transform.position);
+	m_death->tick(dt);
 }
 
 void Player::do_inspect() {

src/spaced/spaced/game/player.cpp

@@ -35,6 +35,8 @@ class Player : public bave::IDrawable {
 
 	void set_special_weapon(std::unique_ptr<Weapon> weapon) { m_arsenal.set_special(std::move(weapon)); }
 
+	void on_death(bave::Seconds dt);
+
 	void inspect() {
 		if constexpr (bave::debug_v) { do_inspect(); }
 	}
@@ -43,8 +45,6 @@ class Player : public bave::IDrawable {
 	Health health{};
 
   private:
-	void on_death();
-
 	void do_inspect();
 
 	bave::Logger m_log{"Player"};

src/spaced/spaced/game/player.hpp

@@ -39,14 +39,6 @@ World::World(bave::NotNull<Services const*> services, bave::NotNull<IScorer*> sc
 	m_enemy_factories["CreepFactory"] = std::make_unique<CreepFactory>(services);
 }
 
-void World::on_death(EnemyDeath const& death) {
-	m_scorer->add_score(death.points);
-
-	// temp
-	if (random_in_range(0, 10) < 3) { debug_spawn_powerup(death.position); }
-	// temp
-}
-
 void World::tick(Seconds const dt) {
 	bool const in_play = !player.health.is_dead();
 

src/spaced/spaced/game/world.cpp

@@ -5,16 +5,14 @@
 #include <spaced/game/target_provider.hpp>
 
 namespace spaced {
-class Resources;
+struct Resources;
 
-class World : public ITargetProvider, public IEnemyDeathListener {
+class World : public ITargetProvider {
   public:
 	explicit World(bave::NotNull<Services const*> services, bave::NotNull<IScorer*> scorer);
 
 	[[nodiscard]] auto get_targets() const -> std::span<bave::NotNull<IDamageable*> const> final { return m_targets; }
 
-	void on_death(EnemyDeath const& death) final;
-
 	void tick(bave::Seconds dt);
 	void draw(bave::Shader& shader) const;
 

src/spaced/spaced/game/world.hpp

@@ -5,6 +5,8 @@
 #include <spaced/scenes/home.hpp>
 #include <spaced/services/scene_switcher.hpp>
 #include <spaced/services/styles.hpp>
+#include <spaced/ui/button.hpp>
+#include <spaced/ui/dialog.hpp>
 
 namespace spaced {
 using bave::Action;
@@ -59,6 +61,7 @@ void Game::tick(Seconds const dt) {
 	auto ft = bave::DeltaTime{};
 
 	m_world.tick(dt);
+	if (m_world.player.health.is_dead() && !m_game_over_dialog_pushed) { on_game_over(); }
 
 	if constexpr (bave::debug_v) { inspect(dt, ft.update()); }
 }
@@ -70,6 +73,19 @@ void Game::add_score(std::int64_t const score) {
 	m_hud->set_score(m_score);
 }
 
+void Game::on_game_over() {
+	auto dci = ui::DialogCreateInfo{
+		.size = {600.0f, 200.0f},
+		.content_text = "GAME OVER",
+		.main_button = {.text = "RESTART", .callback = [this] { get_services().get<ISceneSwitcher>().switch_to<Game>(); }},
+		.second_button = {.text = "QUIT", .callback = [this] { get_app().shutdown(); }},
+	};
+
+	auto dialog = std::make_unique<ui::Dialog>(get_services(), std::move(dci));
+	m_game_over_dialog_pushed = true;
+	push_view(std::move(dialog));
+}
+
 void Game::inspect(Seconds const dt, Seconds const frame_time) {
 	if constexpr (bave::imgui_v) {
 		m_debug.fps.tick(dt);
@@ -83,6 +99,9 @@ void Game::inspect(Seconds const dt, Seconds const frame_time) {
 			ImGui::Separator();
 			im_text("score: {}", get_score());
 
+			ImGui::Separator();
+			if (ImGui::Button("end game")) { m_world.player.on_death({}); }
+
 			ImGui::Separator();
 			im_text("dt: {:05.2f}", std::chrono::duration<float, std::milli>(dt).count());
 			im_text("fps: {}", m_debug.fps.fps);

src/spaced/spaced/scenes/game.cpp

@@ -24,12 +24,14 @@ class Game : public Scene, public IScorer {
 
 	[[nodiscard]] auto get_score() const -> std::int64_t final { return m_score; }
 	void add_score(std::int64_t score) final;
+	void on_game_over();
 
 	void inspect(bave::Seconds dt, bave::Seconds frame_time);
 
 	World m_world;
 	std::int64_t m_score{};
 	bave::Ptr<Hud> m_hud{};
+	bool m_game_over_dialog_pushed{};
 
 	struct {
 		struct {

src/spaced/spaced/scenes/game.hpp

@@ -4,6 +4,7 @@
 #include <spaced/services/resources.hpp>
 #include <spaced/services/scene_switcher.hpp>
 #include <spaced/ui/button.hpp>
+#include <spaced/ui/dialog.hpp>
 #include <spaced/ui/text.hpp>
 #include <spaced/util.hpp>
 
@@ -12,7 +13,7 @@ using bave::App;
 using bave::Seconds;
 using bave::TextHeight;
 
-auto Home::get_text_heights() -> std::vector<TextHeight> { return {TextHeight{100}, TextHeight{60}}; }
+auto Home::get_text_heights() -> std::vector<TextHeight> { return {TextHeight{100}, TextHeight{60}, ui::Dialog::text_height_v}; }
 
 Home::Home(App& app, Services const& services) : Scene(app, services, "Home") { create_ui(); }
 

src/spaced/spaced/scenes/home.cpp

@@ -35,6 +35,7 @@ auto Styles::load(dj::Json const& json) -> Styles {
 	load_styles(ret.rgbas, json["rgbas"]);
 	load_styles(ret.buttons, json["buttons"]);
 	load_styles(ret.progress_bars, json["progress_bars"]);
+	load_styles(ret.dialogs, json["dialogs"]);
 	if (auto const& loading_screen = json["loading_screen"]) { from_json(loading_screen, ret.loading_screen); }
 	return ret;
 }
@@ -44,6 +45,7 @@ auto Styles::save() const -> dj::Json {
 	save_styles(rgbas, ret, "rgbas");
 	save_styles(buttons, ret, "buttons");
 	save_styles(progress_bars, ret, "progress_bars");
+	save_styles(dialogs, ret, "dialogs");
 	to_json(ret["loading_screen"], loading_screen);
 	return ret;
 }

src/spaced/spaced/services/styles.cpp

@@ -12,6 +12,7 @@ struct Styles : IService {
 	StringMap<bave::Rgba> rgbas{};
 	StringMap<ui::ButtonStyle> buttons{};
 	StringMap<ui::ProgressBarStyle> progress_bars{};
+	StringMap<ui::DialogStyle> dialogs{};
 	ui::LoadingScreenStyle loading_screen{};
 
 	static auto load(dj::Json const& json) -> Styles;

src/spaced/spaced/services/styles.hpp

@@ -0,0 +1,48 @@
+#include <spaced/services/styles.hpp>
+#include <spaced/ui/dialog.hpp>
+
+namespace spaced::ui {
+Dialog::Dialog(Services const& services, CreateInfo create_info) : View(services), m_style(services.get<Styles>().dialogs["default"]) {
+	auto main_button = std::make_unique<Button>(services);
+	auto const footer_height = main_button->get_size().y + m_style.footer_padding.y;
+	auto const footer_position = glm::vec2{0.0f, -0.5f * (create_info.size.y - footer_height)};
+
+	auto background = std::make_unique<OutlineQuad>();
+	background->set_size({create_info.size.x, create_info.size.y + footer_height});
+	background->set_tint(m_style.background_tint);
+	background->set_outline_tint(m_style.outline_tint);
+	background->set_corner_ratio(0.25f);
+	push(std::move(background));
+
+	auto content_text = std::make_unique<Text>(services);
+	content_text->text.set_string(std::move(create_info.content_text));
+	content_text->text.set_height(text_height_v);
+	content_text->text.tint = m_style.content_text_tint;
+	push(std::move(content_text));
+
+	main_button->set_text(std::move(create_info.main_button.text));
+	main_button->callback = [this, f = std::move(create_info.main_button.callback)] {
+		if (f) { f(); }
+		set_destroyed();
+	};
+	if (create_info.second_button.text.empty()) {
+		main_button->set_position(footer_position);
+	} else {
+		auto const x_offset = -0.5f * (create_info.size.x - main_button->get_size().x) + m_style.footer_padding.x;
+		main_button->set_position({footer_position.x + x_offset, footer_position.y});
+	}
+	push(std::move(main_button));
+
+	if (!create_info.second_button.text.empty()) {
+		auto second_button = std::make_unique<Button>(services);
+		second_button->set_text(std::move(create_info.second_button.text));
+		second_button->callback = [this, f = std::move(create_info.second_button.callback)] {
+			if (f) { f(); }
+			set_destroyed();
+		};
+		auto const x_offset = 0.5f * (create_info.size.x - second_button->get_size().x) - m_style.footer_padding.x;
+		second_button->set_position({footer_position.x + x_offset, footer_position.y});
+		push(std::move(second_button));
+	}
+}
+} // namespace spaced::ui

src/spaced/spaced/ui/dialog.cpp

@@ -0,0 +1,35 @@
+#pragma once
+#include <spaced/ui/button.hpp>
+#include <spaced/ui/outline_quad.hpp>
+#include <spaced/ui/text.hpp>
+#include <spaced/ui/view.hpp>
+
+namespace spaced::ui {
+struct DialogCreateInfo {
+	struct ButtonInfo {
+		std::string text{};
+		std::function<void()> callback{};
+	};
+
+	glm::vec2 size{500.0f, 200.0f};
+	std::string content_text{"Content text."};
+	ButtonInfo main_button{.text = "OK"};
+	ButtonInfo second_button{};
+};
+
+class Dialog : public ui::View {
+  public:
+	using CreateInfo = DialogCreateInfo;
+
+	static constexpr auto text_height_v = bave::TextHeight{static_cast<int>(bave::TextHeight::eDefault) + 16};
+
+	explicit Dialog(Services const& services, CreateInfo create_info = {});
+
+  protected:
+	DialogStyle m_style{};
+
+	bave::Ptr<OutlineQuad> m_background{};
+	bave::Ptr<Text> m_content_text{};
+	std::array<bave::Ptr<ui::Button>, 2> m_footer_buttons{};
+};
+} // namespace spaced::ui

src/spaced/spaced/ui/dialog.hpp

@@ -38,4 +38,12 @@ struct ProgressBarStyle {
 	float corner_ratio{0.5f};
 	float padding{10.0f};
 };
+
+struct DialogStyle {
+	glm::vec2 footer_padding{20.0f, 10.0f};
+	float corner_ratio{0.25f};
+	bave::Rgba background_tint{bave::yellow_v};
+	bave::Rgba outline_tint{bave::cyan_v};
+	bave::Rgba content_text_tint{bave::black_v};
+};
 } // namespace spaced::ui

src/spaced/spaced/ui/style.hpp

@@ -71,6 +71,24 @@ void util::from_json(dj::Json const& json, ui::ProgressBarStyle& out) {
 	out.padding = json["padding"].as<float>(out.padding);
 }
 
+void util::to_json(dj::Json& out, ui::DialogStyle const& dialog_style) {
+	using bave::to_json;
+	to_json(out["footer_padding"], dialog_style.footer_padding);
+	to_json(out["corner_ratio"], dialog_style.corner_ratio);
+	to_json(out["background_tint"], dialog_style.background_tint);
+	to_json(out["outline_tint"], dialog_style.outline_tint);
+	to_json(out["content_text_tint"], dialog_style.content_text_tint);
+}
+
+void util::from_json(dj::Json const& json, ui::DialogStyle& out) {
+	using bave::from_json;
+	from_json(json["footer_padding"], out.footer_padding);
+	from_json(json["corner_ratio"], out.corner_ratio);
+	from_json(json["background_tint"], out.background_tint);
+	from_json(json["outline_tint"], out.outline_tint);
+	from_json(json["content_text_tint"], out.content_text_tint);
+}
+
 auto util::create_font_atlas_task(std::shared_ptr<bave::Font> font, std::vector<bave::TextHeight> heights) -> std::function<void()> {
 	if (!font || heights.empty()) { return {}; }
 	return [font = std::move(font), heights = std::move(heights)] {

src/spaced/spaced/util.cpp

@@ -17,5 +17,8 @@ void from_json(dj::Json const& json, ui::ButtonStyle& out);
 void to_json(dj::Json& out, ui::ProgressBarStyle const& progress_bar_style);
 void from_json(dj::Json const& json, ui::ProgressBarStyle& out);
 
+void to_json(dj::Json& out, ui::DialogStyle const& dialog_style);
+void from_json(dj::Json const& json, ui::DialogStyle& out);
+
 auto create_font_atlas_task(std::shared_ptr<bave::Font> font, std::vector<bave::TextHeight> heights) -> std::function<void()>;
 } // namespace spaced::util