//
// Copyright (c) 2008-2016 the Urho3D project.
// Copyright (c) 2014-2016, THUNDERBEAST GAMES LLC All rights reserved
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//

#pragma once

#include <Atomic/Core/Object.h>
#include <Atomic/Core/StringUtils.h>
#include <Atomic/Input/Input.h>

namespace Atomic
{

class Node;
class Scene;

}

using namespace Atomic;

const float TOUCH_SENSITIVITY = 2.0f;

/// Sample class, as framework for all samples.
///    - Initialization of the Urho3D engine (in Application class)
///    - Modify engine parameters for windowed mode and to show the class name as title
///    - Create Urho3D logo at screen
///    - Set custom window title and icon
///    - Create Console and Debug HUD, and use F1 and F2 key to toggle them
///    - Toggle rendering options from the keys 1-8
///    - Take screenshot with key 9
///    - Handle Esc key down to hide Console or exit application
///    - Init touch input on mobile platform using screen joysticks (patched for each individual sample)
class Sample : public Object
{
    // Enable type information.
    ATOMIC_OBJECT(Sample, Object)

public:
    /// Construct.
    Sample(Context* context);

    virtual void Start();
    virtual void Stop();

protected:

    /// Initialize touch input on mobile platform.
    void InitTouchInput();
    /// Initialize mouse mode on non-web platform.
    void InitMouseMode(MouseMode mode);
    /// Control logo visibility.
    void SetLogoVisible(bool enable);

    void SimpleCreateInstructionsWithWasd(const String& extra = String::EMPTY);

    void SimpleCreateInstructions(const String& text = String::EMPTY);

    virtual void Cleanup() {}

    void BackToSelector();

    /// Logo sprite.
    // SharedPtr<Sprite> logoSprite_;
    /// Scene.
    SharedPtr<Scene> scene_;
    /// Camera scene node.
    SharedPtr<Node> cameraNode_;
    /// Camera yaw angle.
    float yaw_;
    /// Camera pitch angle.
    float pitch_;
    /// Flag to indicate whether touch input has been enabled.
    bool touchEnabled_;
    /// Mouse mode option to use in the sample.
    MouseMode useMouseMode_;

private:

    /// Create logo.
    void CreateLogo();
    /// Set custom window Title & Icon
    void SetWindowTitleAndIcon();
    /// Handle request for mouse mode on web platform.
    void HandleMouseModeRequest(StringHash eventType, VariantMap& eventData);
    /// Handle request for mouse mode change on web platform.
    void HandleMouseModeChange(StringHash eventType, VariantMap& eventData);
    /// Handle key down event to process key controls common to all samples.
    void HandleKeyDown(StringHash eventType, VariantMap& eventData);
    /// Handle key up event to process key controls common to all samples.
    void HandleKeyUp(StringHash eventType, VariantMap& eventData);
    /// Handle scene update event to control camera's pitch and yaw for all samples.
    void HandleSceneUpdate(StringHash eventType, VariantMap& eventData);
    /// Handle touch begin event to initialize touch input on desktop platform.
    void HandleTouchBegin(StringHash eventType, VariantMap& eventData);

    /// Screen joystick index for navigational controls (mobile platforms only).
    unsigned screenJoystickIndex_;
    /// Screen joystick index for settings (mobile platforms only).
    unsigned screenJoystickSettingsIndex_;
    /// Pause flag.
    bool paused_;
};