HudPeer.h

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// HudPeer.h
//
// Copyright (c) 2013-2016 Michael Imamura.
//
// Licensed under GrokkSoft HoverRace SourceCode License v1.0(the "License");
// you may not use this file except in compliance with the License.
//
// A copy of the license should have been attached to the package from which
// you have taken this file. If you can not find the license you can not use
// this file.
//
//
// The author makes no representations about the suitability of
// this software for any purpose.  It is provided "as is" "AS IS",
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
// implied.
//
// See the License for the specific language governing permissions
// and limitations under the License.

#pragma once

#include <luabind/luabind.hpp>
#include <luabind/object.hpp>

#include "../../../engine/Display/Hud.h"
#include "../../../engine/Script/Core.h"
#include "../../../engine/Script/Peer.h"

namespace HoverRace {
    namespace Display {
        class Chronometer;
        class Counter;
        class Display;
        class HudText;
    }
    namespace Util {
        class Clock;
    }
}

namespace HoverRace {
namespace Client {
namespace HoverScript {

class HudPeer : public Script::Peer
{
    using SUPER = Script::Peer;
    using HudAlignment = Display::Hud::HudAlignment;

public:
    HudPeer(Script::Core &scripting, Display::Display &display,
        std::weak_ptr<Display::Hud> hud);
    virtual ~HudPeer() { }

public:
    static void Register(Script::Core &scripting);

private:
    HudAlignment::type ValidateAlignment(int align)
    {
        try {
            return HudAlignment::FromInt(align);
        }
        catch (Exception &ex) {
            luaL_error(GetScripting().GetState(), "%s", ex.what());
            throw;  // Never actually reached (luaL_error doesn't return).
        }
    }

public:
    std::shared_ptr<Display::Chronometer> LAddChronometer(int align,
        const std::string &title, std::shared_ptr<Util::Clock> clock);

    std::shared_ptr<Display::Counter> LAddCounter_V(int align,
        const std::string &title, double initValue);
    std::shared_ptr<Display::Counter> LAddCounter_VT(int align,
        const std::string &title, double initValue, double total);

    std::shared_ptr<Display::HudText> LAddText(int align,
        const std::string &text);

    template<class T>
    std::shared_ptr<T> LAddDecor(int align)
    {
        HudAlignment::type ha = ValidateAlignment(align);
        if (auto sp = hud.lock()) {
            return sp->At(ha).NewChild<T>(display);
        }
        else {
            return std::shared_ptr<T>();
        }
    }

    void LClear();

    void LUseRaceDefault();

private:
    Display::Display &display;
    std::weak_ptr<Display::Hud> hud;
};

}  // namespace HoverScript
}  // namespace Client
}  // namespace HoverRace