CameraInputHandler.h

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#pragma once
 
#include <tdme/tdme.h>
#include <tdme/engine/fwd-tdme.h>
#include <tdme/engine/Rotation.h>
#include <tdme/gui/events/GUIInputEventHandler.h>
#include <tdme/math/Vector3.h>
#include <tdme/tools/editor/misc/fwd-tdme.h>
 
using tdme::engine::Engine;
using tdme::engine::Rotation;
using tdme::gui::events::GUIInputEventHandler;
using tdme::math::Vector3;
using tdme::tools::editor::misc::CameraInputHandlerEventHandler;
 
/**
 * Camera Input Handler
 * @author Andreas Drewke
 */
class tdme::tools::editor::misc::CameraInputHandler final
    : public GUIInputEventHandler
{
private:
    Engine* engine { nullptr };
    CameraInputHandlerEventHandler* eventHandler { nullptr };
 
    bool keyLeft { false };
    bool keyRight { false };
    bool keyUp { false };
    bool keyDown { false };
    bool keyA { false };
    bool keyD { false };
    bool keyW { false };
    bool keyS { false };
    bool keyPlus { false };
    bool keyMinus { false };
    bool keyR { false };
 
    static constexpr int MOUSE_DOWN_LAST_POSITION_NONE { -1 };
    static constexpr int MOUSE_PANNING_NONE { 0 };
    static constexpr int MOUSE_ROTATION_NONE { 0 };
 
    int mouseRotationX { 0 };
    int mouseRotationY { 0 };
    int mouseDownLastX { MOUSE_DOWN_LAST_POSITION_NONE };
    int mouseDownLastY { MOUSE_DOWN_LAST_POSITION_NONE };
    bool mouseDragging { false };
 
    float camScale { 1.0f };
    float camScaleMax { 15.0f };
    float camScaleMin { 0.05f };
 
    Rotation camLookRotationX;
    Rotation camLookRotationY;
 
    Vector3 sceneCenter;
 
    bool resetRequested { false };
 
public:
    // forbid class copy
    FORBID_CLASS_COPY(CameraInputHandler)
 
    /**
     * Public constructor
     * @param engine engine
     * @param eventHandler event handler
     */
    CameraInputHandler(Engine* engine, CameraInputHandlerEventHandler* eventHandler = nullptr);
 
    /**
     * Destructor
     */
    ~CameraInputHandler();
 
    /**
     * @return scene center
     */
    inline const Vector3& getSceneCenter() {
        return sceneCenter;
    }
 
    /**
     * Set scene center
     * @param sceneCenter scene center
     */
    inline void setSceneCenter(const Vector3& sceneCenter) {
        this->sceneCenter = sceneCenter;
    }
 
    /**
     * Reset
     */
    void reset();
 
    // overridden methods
    void handleInputEvents() override;
 
};