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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* 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.
*/
#pragma once
#include <AK/CircularQueue.h>
#include <AK/NonnullRefPtrVector.h>
#include <LibGUI/GWidget.h>
class SnakeGame : public GUI::Widget {
C_OBJECT(SnakeGame)
public:
virtual ~SnakeGame() override;
void reset();
private:
explicit SnakeGame(GUI::Widget* parent = nullptr);
virtual void paint_event(GUI::PaintEvent&) override;
virtual void keydown_event(GUI::KeyEvent&) override;
virtual void timer_event(Core::TimerEvent&) override;
struct Coordinate {
int row { 0 };
int column { 0 };
bool operator==(const Coordinate& other) const
{
return row == other.row && column == other.column;
}
};
struct Velocity {
int vertical { 0 };
int horizontal { 0 };
};
void game_over();
void spawn_fruit();
bool is_available(const Coordinate&);
void queue_velocity(int v, int h);
const Velocity& last_velocity() const;
Gfx::Rect cell_rect(const Coordinate&) const;
Gfx::Rect score_rect() const;
Gfx::Rect high_score_rect() const;
int m_rows { 20 };
int m_columns { 20 };
Velocity m_velocity { 0, 1 };
Velocity m_last_velocity { 0, 1 };
CircularQueue<Velocity, 10> m_velocity_queue;
Coordinate m_head;
Vector<Coordinate> m_tail;
Coordinate m_fruit;
int m_fruit_type { 0 };
int m_length { 0 };
unsigned m_score { 0 };
String m_score_text;
unsigned m_high_score { 0 };
String m_high_score_text;
NonnullRefPtrVector<Gfx::Bitmap> m_fruit_bitmaps;
};
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