s_env.h

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// Luanti
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
 
#pragma once
 
#include "cpp_api/s_base.h"
#include "irr_v3d.h"
#include "mapnode.h"
#include <unordered_set>
#include <vector>
 
class ServerEnvironment;
class MapBlock;
struct ScriptCallbackState;
 
class ScriptApiEnv : virtual public ScriptApiBase
{
public:
        // Called on environment step
        void environment_Step(float dtime);
 
        // Called after generating a piece of map
        void environment_OnGenerated(v3s16 minp, v3s16 maxp, u32 blockseed);
 
        // Called on player event
        void player_event(ServerActiveObject *player, const std::string &type);
 
        // Called after emerge of a block queued from core.emerge_area()
        void on_emerge_area_completion(v3s16 blockpos, int action,
                ScriptCallbackState *state);
 
        void check_for_falling(v3s16 p);
 
        // Called after liquid transform changes
        void on_liquid_transformed(const std::vector<std::pair<v3s16, MapNode>> &list);
 
        // Called after mapblock changes
        void on_mapblocks_changed(const std::unordered_set<v3s16> &set);
 
        // Determines whether there are any on_mapblocks_changed callbacks
        bool has_on_mapblocks_changed();
 
        // Initializes environment and loads some definitions from Lua
        void initializeEnvironment(ServerEnvironment *env);
 
        void triggerABM(int id, v3s16 p, MapNode n,
                        u32 active_object_count, u32 active_object_count_wider);
 
        void triggerLBM(int id, MapBlock *block,
                const std::unordered_set<v3s16> &positions, float dtime_s);
 
private:
        void readABMs();
 
        void readLBMs();
 
        // Reads a single or a list of node names into a vector
        static bool read_nodenames(lua_State *L, int idx, std::vector<std::string> &to);
};