Chess: Add chess application to Chess namespace

This is required to port the application to GML.

Userland/Games/Chess/ChessWidget.cpp

@@ -24,6 +24,8 @@
 #include <LibGfx/Path.h>
 #include <unistd.h>
 
+namespace Chess {
+
 ErrorOr<NonnullRefPtr<ChessWidget>> ChessWidget::try_create()
 {
     auto widget = TRY(AK::adopt_nonnull_ref_or_enomem(new (nothrow) ChessWidget));
@@ -43,7 +45,7 @@ void ChessWidget::paint_event(GUI::PaintEvent& event)
     GUI::Painter painter(*this);
     painter.add_clip_rect(event.rect());
 
-    painter.fill_rect(frame_inner_rect(), Color::Black);
+    painter.fill_rect(frame_inner_rect(), Gfx::Color::Black);
 
     painter.translate(frame_thickness() + widget_offset_x, frame_thickness() + widget_offset_y);
 
@@ -74,8 +76,8 @@ void ChessWidget::paint_event(GUI::PaintEvent& event)
             auto const piece = active_board.get_piece(sq);
             if (m_highlight_checks && last_move.is_check && piece.type == Chess::Type::King && piece.color == active_board.turn()) {
                 Array<Gfx::ColorStop, 2> colors = {
-                    Gfx::ColorStop { .color = Color::Red, .position = 0.16f },
-                    Gfx::ColorStop { .color = Color::Transparent, .position = .66f }
+                    Gfx::ColorStop { .color = Gfx::Color::Red, .position = 0.16f },
+                    Gfx::ColorStop { .color = Gfx::Color::Transparent, .position = .66f }
                 };
 
                 painter.fill_rect_with_radial_gradient(tile_rect, colors, tile_rect.center() - tile_rect.top_left(), tile_rect.size());
@@ -445,11 +447,11 @@ void ChessWidget::set_board_theme(StringView name)
     // FIXME: Add some kind of themes.json
     // The following Colors have been taken from lichess.org, but i'm pretty sure they took them from chess.com.
     if (name == "Beige") {
-        m_board_theme = { "Beige"sv, Color::from_rgb(0xb58863), Color::from_rgb(0xf0d9b5) };
+        m_board_theme = { "Beige"sv, Gfx::Color::from_rgb(0xb58863), Gfx::Color::from_rgb(0xf0d9b5) };
     } else if (name == "Green") {
-        m_board_theme = { "Green"sv, Color::from_rgb(0x86a666), Color::from_rgb(0xffffdd) };
+        m_board_theme = { "Green"sv, Gfx::Color::from_rgb(0x86a666), Gfx::Color::from_rgb(0xffffdd) };
     } else if (name == "Blue") {
-        m_board_theme = { "Blue"sv, Color::from_rgb(0x8ca2ad), Color::from_rgb(0xdee3e6) };
+        m_board_theme = { "Blue"sv, Gfx::Color::from_rgb(0x8ca2ad), Gfx::Color::from_rgb(0xdee3e6) };
     } else {
         set_board_theme("Beige"sv);
     }
@@ -893,3 +895,5 @@ void ChessWidget::config_bool_did_change(StringView domain, StringView group, St
         update();
     }
 }
+
+}

Userland/Games/Chess/ChessWidget.h

@@ -18,6 +18,8 @@
 #include <LibGUI/Frame.h>
 #include <LibGfx/Bitmap.h>
 
+namespace Chess {
+
 class PGNParseError {
 public:
     PGNParseError() = default;
@@ -86,8 +88,8 @@ public:
 
     struct BoardTheme {
         StringView name;
-        Color dark_square_color;
-        Color light_square_color;
+        Gfx::Color dark_square_color;
+        Gfx::Color light_square_color;
     };
 
     BoardTheme const& board_theme() const { return m_board_theme; }
@@ -155,11 +157,11 @@ private:
     size_t m_playback_move_number { 0 };
     BoardMarking m_current_marking;
     Vector<BoardMarking> m_board_markings;
-    BoardTheme m_board_theme { "Beige"sv, Color::from_rgb(0xb58863), Color::from_rgb(0xf0d9b5) };
-    Color m_move_highlight_color { Color::from_argb(0x66ccee00) };
-    Color m_marking_primary_color { Color::from_argb(0x66ff0000) };
-    Color m_marking_alternate_color { Color::from_argb(0x66ffaa00) };
-    Color m_marking_secondary_color { Color::from_argb(0x6655dd55) };
+    BoardTheme m_board_theme { "Beige"sv, Gfx::Color::from_rgb(0xb58863), Gfx::Color::from_rgb(0xf0d9b5) };
+    Gfx::Color m_move_highlight_color { Gfx::Color::from_argb(0x66ccee00) };
+    Gfx::Color m_marking_primary_color { Gfx::Color::from_argb(0x66ff0000) };
+    Gfx::Color m_marking_alternate_color { Gfx::Color::from_argb(0x66ffaa00) };
+    Gfx::Color m_marking_secondary_color { Gfx::Color::from_argb(0x6655dd55) };
     Chess::Color m_side { Chess::Color::White };
     HashMap<Chess::Piece, RefPtr<Gfx::Bitmap const>> m_pieces;
     bool m_any_piece_images_are_missing { false };
@@ -173,3 +175,5 @@ private:
     bool m_coordinates { true };
     bool m_highlight_checks { true };
 };
+
+}

Userland/Games/Chess/PromotionDialog.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, the SerenityOS developers.
+ * Copyright (c) 2020-2024, the SerenityOS developers.
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -9,6 +9,8 @@
 #include <LibGUI/Button.h>
 #include <LibGUI/Frame.h>
 
+namespace Chess {
+
 PromotionDialog::PromotionDialog(ChessWidget& chess_widget)
     : Dialog(chess_widget.window())
     , m_selected_piece(Chess::Type::None)
@@ -37,3 +39,5 @@ void PromotionDialog::event(Core::Event& event)
 {
     Dialog::event(event);
 }
+
+}

Userland/Games/Chess/PromotionDialog.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, the SerenityOS developers.
+ * Copyright (c) 2020-2024, the SerenityOS developers.
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
@@ -9,6 +9,8 @@
 #include "ChessWidget.h"
 #include <LibGUI/Dialog.h>
 
+namespace Chess {
+
 class PromotionDialog final : public GUI::Dialog {
     C_OBJECT(PromotionDialog)
 public:
@@ -20,3 +22,5 @@ private:
 
     Chess::Type m_selected_piece;
 };
+
+}

Userland/Games/Chess/main.cpp

@@ -64,7 +64,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     auto app_icon = TRY(GUI::Icon::try_create_default_icon("app-chess"sv));
 
     auto window = GUI::Window::construct();
-    auto widget = TRY(ChessWidget::try_create());
+    auto widget = TRY(Chess::ChessWidget::try_create());
     window->set_main_widget(widget);
 
     auto engines = TRY(available_engines());