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//
// lager - library for functional interactive c++ programs
// Copyright (C) 2019 Carl Bussey
//
// This file is part of lager.
//
// lager is free software: you can redistribute it and/or modify
// it under the terms of the MIT License, as detailed in the LICENSE
// file located at the root of this source code distribution,
// or here: <https://github.com/arximboldi/lager/blob/master/LICENSE>
//
#include "qmodel.hpp"
namespace sn {
namespace {
QPoint as_qpoint(std::pair<int, int> p)
{
auto [x, y] = p;
return {x, y};
}
} // namespace
SnakeBody::SnakeBody(QObject* parent)
: QAbstractListModel(parent)
{}
void SnakeBody::setModel(snake_model::body_t body)
{
if (data_ != body) {
beginResetModel();
data_ = body;
endResetModel();
}
}
int SnakeBody::rowCount(const QModelIndex&) const { return data_.size(); }
QVariant SnakeBody::data(const QModelIndex& index, int) const
{
if (index.row() < static_cast<int>(data_.size()))
return as_qpoint(data_[index.row()]);
return {};
}
Game::Game(context_t context)
: context_{std::move(context)}
, snakeBody_{new SnakeBody(this)}
{}
void Game::setModel(game_model game)
{
snakeBody_->setModel(game.snake.body);
auto newApplePosition = as_qpoint(game.apple_pos);
if (applePosition_ != newApplePosition) {
applePosition_ = newApplePosition;
emit applePositionChanged(applePosition_);
}
if (over_ != game.over) {
over_ = game.over;
emit overChanged();
}
}
Q_INVOKABLE void Game::left() { context_.dispatch(go_left{}); }
Q_INVOKABLE void Game::right() { context_.dispatch(go_right{}); }
Q_INVOKABLE void Game::up() { context_.dispatch(go_up{}); }
Q_INVOKABLE void Game::down() { context_.dispatch(go_down{}); }
Q_INVOKABLE void Game::reset() { context_.dispatch(sn::reset{}); }
Q_INVOKABLE void Game::tick() { context_.dispatch(sn::tick{}); }
} // namespace sn
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