clientobject.h

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// Luanti
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
 
#pragma once
 
#include "irrlichttypes_bloated.h"
#include "activeobject.h"
#include <memory>
#include <unordered_map>
#include <unordered_set>
 
 
class ClientEnvironment;
class ITextureSource;
class Client;
struct ItemStack;
 
namespace scene
{
        class AnimatedMeshSceneNode;
        class ISceneNode;
        class ISceneManager;
}
 
class ClientActiveObject : public ActiveObject
{
public:
        ClientActiveObject(u16 id, Client *client, ClientEnvironment *env);
        virtual ~ClientActiveObject();
 
        virtual void addToScene(ITextureSource *tsrc, scene::ISceneManager *smgr) = 0;
        virtual void removeFromScene(bool permanent) {}
 
        virtual void updateLight(u32 day_night_ratio) {}
 
        virtual bool getCollisionBox(aabb3f *toset) const { return false; }
        virtual bool getSelectionBox(aabb3f *toset) const { return false; }
        virtual bool collideWithObjects() const { return false; }
        virtual const v3f getPosition() const { return v3f(0.0f); } // in BS-space
        virtual const v3f getVelocity() const { return v3f(0.0f); } // in BS-space
        virtual scene::ISceneNode *getSceneNode() const
        { return NULL; }
        virtual scene::AnimatedMeshSceneNode *getAnimatedMeshSceneNode() const
        { return NULL; }
        virtual bool isLocalPlayer() const { return false; }
 
        virtual ClientActiveObject *getParent() const { return nullptr; };
        virtual const std::unordered_set<object_t> &getAttachmentChildIds() const
        { static std::unordered_set<object_t> rv; return rv; }
        virtual void updateAttachments() {};
 
        virtual bool doShowSelectionBox() { return true; }
 
        // Step object in time
        virtual void step(float dtime, ClientEnvironment *env) {}
 
        // Process a message sent by the server side object
        virtual void processMessage(const std::string &data) {}
 
        virtual std::string infoText() { return ""; }
        virtual std::string debugInfoText() { return ""; }
 
        /*
                This takes the return value of
                ServerActiveObject::getClientInitializationData
        */
        virtual void initialize(const std::string &data) {}
 
        // Create a certain type of ClientActiveObject
        static std::unique_ptr<ClientActiveObject> create(ActiveObjectType type,
                        Client *client, ClientEnvironment *env);
 
        // If returns true, punch will not be sent to the server
        virtual bool directReportPunch(v3f dir, const ItemStack *punchitem,
                const ItemStack *hand_item, float time_from_last_punch = 1000000) { return false; }
 
protected:
        // Used for creating objects based on type
        typedef std::unique_ptr<ClientActiveObject> (*Factory)(Client *client, ClientEnvironment *env);
        static void registerType(u16 type, Factory f);
        Client *m_client;
        ClientEnvironment *m_env;
private:
        // Used for creating objects based on type
        static std::unordered_map<u16, Factory> m_types;
};
 
class DistanceSortedActiveObject
{
public:
        ClientActiveObject *obj;
 
        DistanceSortedActiveObject(ClientActiveObject *a_obj, f32 a_d)
        {
                obj = a_obj;
                d = a_d;
        }
 
        bool operator < (const DistanceSortedActiveObject &other) const
        {
                return d < other.d;
        }
 
private:
        f32 d;
};