feat: add hotbar system with ItemStack and RowLayout

include/Cubed/gameplay/client_player.hpp

@@ -5,6 +5,7 @@
 #include "Cubed/gameplay/chunk_pos.hpp"
 #include "Cubed/gameplay/game_mode.hpp"
 #include "Cubed/gameplay/game_time.hpp"
+#include "Cubed/gameplay/item_stack.hpp"
 #include "Cubed/gameplay/player.hpp"
 #include "Cubed/input/event.hpp"
 #include "Cubed/input/input.hpp"
@@ -18,6 +19,7 @@ namespace Cubed {
 class ClientWorld;
 class ClientPlayer {
 public:
+    static constexpr size_t HOTBAR_SUM = 10;
     static constexpr float WALK_SOUND_INTERVAL = 0.45f;
     static constexpr float RUN_SOUND_INTERVAL = 0.3f;
     using ChunkPosSet = absl::flat_hash_set<ChunkPos, ChunkPos::Hash>;
@@ -47,7 +49,6 @@ public:
     void change_mode(GameMode mode);
     void reload_config();
     void set_player_pos(const glm::vec3& pos);
-    void set_place_block(unsigned id);
     void update(float delta_time);
 
     float& max_walk_speed();
@@ -58,7 +59,7 @@ public:
     float& g();
     float& fly_y_speed();
 
-    unsigned get_current_block() const;
+    const ItemStack& get_current_itemstack() const;
 
     void set_gait(Gait gait);
     GameMode& game_mode();
@@ -82,6 +83,8 @@ public:
     void set_underwater(bool u);
     void place_block(float dt);
 
+    std::span<const ItemStack, HOTBAR_SUM> get_hotbar() const;
+
 private:
     using enum GameMode;
     float m_max_walk_speed = DEFAULT_MAX_WALK_SPEED;
@@ -89,12 +92,13 @@ private:
     float m_acceleration = DEFAULT_ACCELERATION;
     float m_deceleration = DEFAULT_DECELERATION;
     float m_g = DEFAULT_G;
-    constexpr static float MAX_SPACE_ON_TIME = 0.3f;
-    constexpr static float PLACE_BLOCK_INTERVAL = 0.2f;
+    static constexpr float MAX_SPACE_ON_TIME = 0.3f;
+    static constexpr float PLACE_BLOCK_INTERVAL = 0.2f;
+
     float m_place_time = PLACE_BLOCK_INTERVAL;
     std::atomic<float> m_yaw = 0.0f;
     std::atomic<float> m_pitch = 0.0f;
-
+    std::array<ItemStack, HOTBAR_SUM> m_hotbar;
     float m_sensitivity = 0.15f;
 
     float m_max_speed = m_max_walk_speed;
@@ -108,7 +112,7 @@ private:
 
     float m_xz_speed = 0.0f;
 
-    unsigned m_place_block = 1;
+    int m_current_hotbar = 0;
 
     bool m_moving = false;
     bool m_sprinting = false;

include/Cubed/gameplay/item_stack.hpp

@@ -0,0 +1,8 @@
+#pragma once
+#include "Cubed/gameplay/block.hpp"
+namespace Cubed {
+struct ItemStack {
+    BlockType type = 0;
+    size_t sum = 0;
+};
+} // namespace Cubed

include/Cubed/texture_manager.hpp

@@ -48,7 +48,7 @@ public:
     const Texture* get_cross_plane_array() const;
     const Texture* get_image_texture(const std::string& path);
     const Texture* get_pbr_texture() const;
-    const std::vector<std::unique_ptr<Texture>>& item_textures() const;
+    const std::vector<std::unique_ptr<Texture>>& get_item_textures() const;
     const Texture* get_skin() const;
     void init_texture();
 

include/Cubed/ui/column_layout.hpp

@@ -12,9 +12,6 @@ public:
     ColumnLayout& operator=(ColumnLayout&&) = delete;
     ColumnLayout(Widget* parent);
     ~ColumnLayout();
-
-    void update(float dt) override;
-
     float width() const override;
     float height() const override;
 
@@ -29,5 +26,7 @@ private:
     float m_content_height = 0.0f;
     float m_content_width = 0.0f;
     ColumnLayoutAnchor m_layout_anchor = ColumnLayoutAnchor::CENTER;
+
+    void on_update(float dt) override;
 };
 } // namespace Cubed

include/Cubed/ui/image.hpp

@@ -13,8 +13,13 @@ public:
     Image& operator=(const Image&) = delete;
     Image& operator=(Image&&) = delete;
     Image(Widget* parent);
-
-    Image& set_image(const std::string& path, TextureManager& texture_manager);
+    // If you need to set width and height to the material's size, pass true,
+    // If you set fill parent, please pass false.
+    Image& set_image(const std::string& path, TextureManager& texture_manager,
+                     bool change_size);
+    // If you need to set width and height to the material's size, pass true
+    // If you set fill parent, please pass false.
+    Image& set_texture(const Texture* texture, bool change_size);
     float width() const override;
     float height() const override;
     const Texture* texture() const;

include/Cubed/ui/row_layout.hpp

@@ -0,0 +1,22 @@
+#pragma once
+
+#include "Cubed/ui/widget.hpp"
+namespace Cubed {
+class RowLayout : public Widget {
+public:
+    RowLayout(Widget* parent);
+    ~RowLayout();
+    float width() const override;
+    float height() const override;
+
+    RowLayout& set_spacing(int spacing);
+
+    void layout();
+
+private:
+    int m_spacing = 0;
+    float m_content_height = 0.0f;
+    float m_content_width = 0.0f;
+    void on_update(float dt) override;
+};
+} // namespace Cubed

include/Cubed/ui/world_ui_manager.hpp

@@ -2,6 +2,7 @@
 
 #include "Cubed/ui/chat_box.hpp"
 #include "Cubed/ui/image.hpp"
+#include "Cubed/ui/row_layout.hpp"
 #include "Cubed/ui/ui_manager.hpp"
 #include "Cubed/ui/widget.hpp"
 
@@ -26,10 +27,14 @@ public:
 
 private:
     bool handle_key_event(const KeyEvent& e) override;
+    void update_hotbar();
     WorldScene& m_scene;
 
     ChatBox* m_chat_box = nullptr;
     Image* m_mircophone = nullptr;
     Label* m_disbable_voice = nullptr;
+    RowLayout* m_hotbar = nullptr;
+
+    std::vector<Image*> m_hotbar_items;
 };
 } // namespace Cubed