Games: Move to Userland/Games/

Userland/Games/2048/BoardView.cpp

@@ -0,0 +1,215 @@
+/*
+ * Copyright (c) 2020, the SerenityOS developers.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "BoardView.h"
+#include <LibGUI/Painter.h>
+#include <LibGfx/Font.h>
+#include <LibGfx/FontDatabase.h>
+#include <LibGfx/Palette.h>
+
+BoardView::BoardView(const Game::Board* board)
+    : m_board(board)
+{
+}
+
+BoardView::~BoardView()
+{
+}
+
+void BoardView::set_board(const Game::Board* board)
+{
+    if (m_board == board)
+        return;
+
+    if (!board) {
+        m_board = nullptr;
+        return;
+    }
+
+    bool must_resize = !m_board || m_board->size() != board->size();
+
+    m_board = board;
+
+    if (must_resize)
+        resize();
+
+    update();
+}
+
+void BoardView::pick_font()
+{
+    String best_font_name;
+    int best_font_size = -1;
+    auto& font_database = Gfx::FontDatabase::the();
+    font_database.for_each_font([&](const Gfx::Font& font) {
+        if (font.family() != "Liza" || font.weight() != 700)
+            return;
+        auto size = font.glyph_height();
+        if (size * 2 <= m_cell_size && size > best_font_size) {
+            best_font_name = font.qualified_name();
+            best_font_size = size;
+        }
+    });
+
+    auto font = font_database.get_by_name(best_font_name);
+    set_font(font);
+}
+
+size_t BoardView::rows() const
+{
+    if (!m_board)
+        return 0;
+    return m_board->size();
+}
+
+size_t BoardView::columns() const
+{
+    if (!m_board)
+        return 0;
+    if (m_board->is_empty())
+        return 0;
+    return (*m_board)[0].size();
+}
+
+void BoardView::resize_event(GUI::ResizeEvent&)
+{
+    resize();
+}
+
+void BoardView::resize()
+{
+    constexpr float padding_ratio = 7;
+    m_padding = min(
+        width() / (columns() * (padding_ratio + 1) + 1),
+        height() / (rows() * (padding_ratio + 1) + 1));
+    m_cell_size = m_padding * padding_ratio;
+
+    pick_font();
+}
+
+void BoardView::keydown_event(GUI::KeyEvent& event)
+{
+    if (!on_move)
+        return;
+
+    switch (event.key()) {
+    case KeyCode::Key_A:
+    case KeyCode::Key_Left:
+        on_move(Game::Direction::Left);
+        break;
+    case KeyCode::Key_D:
+    case KeyCode::Key_Right:
+        on_move(Game::Direction::Right);
+        break;
+    case KeyCode::Key_W:
+    case KeyCode::Key_Up:
+        on_move(Game::Direction::Up);
+        break;
+    case KeyCode::Key_S:
+    case KeyCode::Key_Down:
+        on_move(Game::Direction::Down);
+        break;
+    default:
+        return;
+    }
+}
+
+Gfx::Color BoardView::background_color_for_cell(u32 value)
+{
+    switch (value) {
+    case 0:
+        return Color::from_rgb(0xcdc1b4);
+    case 2:
+        return Color::from_rgb(0xeee4da);
+    case 4:
+        return Color::from_rgb(0xede0c8);
+    case 8:
+        return Color::from_rgb(0xf2b179);
+    case 16:
+        return Color::from_rgb(0xf59563);
+    case 32:
+        return Color::from_rgb(0xf67c5f);
+    case 64:
+        return Color::from_rgb(0xf65e3b);
+    case 128:
+        return Color::from_rgb(0xedcf72);
+    case 256:
+        return Color::from_rgb(0xedcc61);
+    case 512:
+        return Color::from_rgb(0xedc850);
+    case 1024:
+        return Color::from_rgb(0xedc53f);
+    case 2048:
+        return Color::from_rgb(0xedc22e);
+    default:
+        ASSERT(value > 2048);
+        return Color::from_rgb(0x3c3a32);
+    }
+}
+
+Gfx::Color BoardView::text_color_for_cell(u32 value)
+{
+    if (value <= 4)
+        return Color::from_rgb(0x776e65);
+    return Color::from_rgb(0xf9f6f2);
+}
+
+void BoardView::paint_event(GUI::PaintEvent&)
+{
+    Color background_color = Color::from_rgb(0xbbada0);
+
+    GUI::Painter painter(*this);
+
+    if (!m_board) {
+        painter.fill_rect(rect(), background_color);
+        return;
+    }
+    auto& board = *m_board;
+
+    Gfx::IntRect field_rect {
+        0,
+        0,
+        static_cast<int>(m_padding + (m_cell_size + m_padding) * columns()),
+        static_cast<int>(m_padding + (m_cell_size + m_padding) * rows())
+    };
+    field_rect.center_within(rect());
+    painter.fill_rect(field_rect, background_color);
+
+    for (size_t column = 0; column < columns(); ++column) {
+        for (size_t row = 0; row < rows(); ++row) {
+            auto rect = Gfx::IntRect {
+                field_rect.x() + m_padding + (m_cell_size + m_padding) * column,
+                field_rect.y() + m_padding + (m_cell_size + m_padding) * row,
+                m_cell_size,
+                m_cell_size,
+            };
+            auto entry = board[row][column];
+            painter.fill_rect(rect, background_color_for_cell(entry));
+            if (entry > 0)
+                painter.draw_text(rect, String::number(entry), font(), Gfx::TextAlignment::Center, text_color_for_cell(entry));
+        }
+    }
+}