#include "Tetris.h"

Tetris::Tetris()
{
    paint_device().resize(
            Size(
                    m_Width + 6,
                    m_Height
            )
    );

    m_GameField.resize(
            m_Width,
            m_Height
    );

    m_Figure =
            new IBlock(
                    Point(5,1)
            );

    track_key(KEY_LEFT);
    track_key(KEY_RIGHT);
    track_key(KEY_DOWN);
    track_key(' ');
}
Tetris::~Tetris()
{
    delete m_Figure;
}
bool Tetris::end() const
{
    return m_End;
}
void Tetris::render(
        PaintDevice& paintDevice
)
{
    m_GameField.render(
            paintDevice
    );

    if (m_Figure)
    {
        m_Figure->render(
                paintDevice
        );
    }

    Vector2 scorePos(m_Width + 1, 2);

    std::wstring text = L"SCORE: " + std::to_wstring(m_Score);

    for (size_t i = 0; i < text.size(); i++)
    {
        paintDevice.set_char(
                Vector2(scorePos.x() + i, scorePos.y()),
                text[i]
        );
    }
}
void Tetris::update(int dt)
{
    m_Figure->backup();

    m_Figure->update(dt);

    if (m_GameField.has_collision(*m_Figure))
    {
        m_Figure->restore();

        m_GameField.merge(*m_Figure);

        int lines = m_GameField.clear_lines();

        if (lines > 0)
        {
            m_Score += lines * 100;
        }

        delete m_Figure;

        m_Figure =
                new IBlock(Point(5,1));
    }
}
void Tetris::on_button_press(
        int button
)
{
    m_Figure->backup();

    switch (button)
    {
        case KEY_LEFT:
            m_Figure->move_left();
            break;

        case KEY_RIGHT:
            m_Figure->move_right();
            break;

        case KEY_DOWN:
            m_Figure->boost();
            break;

        case ' ':
            m_Figure->rotate();
            break;
    }

    if (
            m_GameField.has_collision(
                    *m_Figure
            )
            )
    {
        m_Figure->restore();
    }
}