luaentity_sao.h

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// Luanti
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
// Copyright (C) 2013-2020 Minetest core developers & community
 
#pragma once
 
#include "unit_sao.h"
 
class LuaEntitySAO : public UnitSAO
{
public:
        LuaEntitySAO() = delete;
        // Used by the environment to load SAO
        LuaEntitySAO(ServerEnvironment *env, v3f pos, const std::string &data);
        // Used by the Lua API
        LuaEntitySAO(ServerEnvironment *env, v3f pos, const std::string &name,
                        const std::string &state) :
                        UnitSAO(env, pos),
                        m_init_name(name), m_init_state(state)
        {
        }
        ~LuaEntitySAO();
 
        ActiveObjectType getType() const { return ACTIVEOBJECT_TYPE_LUAENTITY; }
        ActiveObjectType getSendType() const { return ACTIVEOBJECT_TYPE_GENERIC; }
        virtual void addedToEnvironment(u32 dtime_s);
        void step(float dtime, bool send_recommended);
        std::string getClientInitializationData(u16 protocol_version);
 
        bool isStaticAllowed() const { return m_prop.static_save; }
        bool shouldUnload() const { return true; }
        void getStaticData(std::string *result) const;
 
        u32 punch(v3f dir, const ToolCapabilities *toolcap = nullptr,
                        ServerActiveObject *puncher = nullptr,
                        float time_from_last_punch = 1000000.0f,
                        u16 initial_wear = 0);
 
        void rightClick(ServerActiveObject *clicker);
 
        void setPos(const v3f &pos);
        void moveTo(v3f pos, bool continuous);
        float getMinimumSavedMovement();
 
        std::string getDescription();
 
        void setHP(s32 hp, const PlayerHPChangeReason &reason);
        u16 getHP() const;
 
        /* LuaEntitySAO-specific */
        void setVelocity(v3f velocity);
        void addVelocity(v3f velocity) { m_velocity += velocity; }
        v3f getVelocity();
        void setAcceleration(v3f acceleration);
        v3f getAcceleration();
 
        void setTextureMod(const std::string &mod);
        std::string getTextureMod() const;
        void setSprite(v2s16 p, int num_frames, float framelength,
                        bool select_horiz_by_yawpitch);
        std::string getName();
        bool getCollisionBox(aabb3f *toset) const;
        bool getSelectionBox(aabb3f *toset) const;
        bool collideWithObjects() const;
 
protected:
        void dispatchScriptDeactivate(bool removal);
        virtual void onMarkedForDeactivation() {
                UnitSAO::onMarkedForDeactivation();
                dispatchScriptDeactivate(false);
        }
        virtual void onMarkedForRemoval() {
                UnitSAO::onMarkedForRemoval();
                dispatchScriptDeactivate(true);
        }
 
private:
        std::string getPropertyPacket();
        void sendPosition(bool do_interpolate, bool is_movement_end);
        std::string generateSetTextureModCommand() const;
        static std::string generateSetSpriteCommand(v2s16 p, u16 num_frames,
                        f32 framelength, bool select_horiz_by_yawpitch);
 
        std::string m_init_name;
        std::string m_init_state;
        bool m_registered = false;
 
        v3f m_velocity;
        v3f m_acceleration;
 
        v3f m_last_sent_position;
        v3f m_last_sent_velocity;
        v3f m_last_sent_rotation;
        float m_last_sent_position_timer = 0.0f;
        float m_last_sent_move_precision = 0.0f;
 
        std::string m_texture_modifier;
        bool m_texture_modifier_sent = false;
};