advtrains.git - Advtrains mod for minetest.

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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/


/******************************************************************************/
/******************************************************************************/
/* WARNING!!!! do NOT add this header in any include file or any code file    */
/*             not being a script/modapi file!!!!!!!!                         */
/******************************************************************************/
/******************************************************************************/
#pragma once

#include <vector>
#include <unordered_map>

#include "irrlichttypes_bloated.h"
#include "common/c_types.h"

extern "C" {
#include <lua.h>
}

std::string        getstringfield_default(lua_State *L, int table,
                             const char *fieldname, const std::string &default_);
bool               getboolfield_default(lua_State *L, int table,
                             const char *fieldname, bool default_);
float              getfloatfield_default(lua_State *L, int table,
                             const char *fieldname, float default_);
int                getintfield_default(lua_State *L, int table,
                             const char *fieldname, int default_);

bool check_field_or_nil(lua_State *L, int index, int type, const char *fieldname);

template<typename T>
bool getintfield(lua_State *L, int table,
		const char *fieldname, T &result)
{
	lua_getfield(L, table, fieldname);
	bool got = false;
	if (check_field_or_nil(L, -1, LUA_TNUMBER, fieldname)){
		result = lua_tointeger(L, -1);
		got = true;
	}
	lua_pop(L, 1);
	return got;
}

// Retrieve an v3s16 where all components are optional (falls back to default)
v3s16              getv3s16field_default(lua_State *L, int table,
                             const char *fieldname, v3s16 default_);

bool               getstringfield(lua_State *L, int table,
                             const char *fieldname, std::string &result);
size_t             getstringlistfield(lua_State *L, int table,
                             const char *fieldname,
                             std::vector<std::string> *result);
void               read_groups(lua_State *L, int index,
                             std::unordered_map<std::string, int> &result);
bool               getboolfield(lua_State *L, int table,
                             const char *fieldname, bool &result);
bool               getfloatfield(lua_State *L, int table,
                             const char *fieldname, float &result);

void               setstringfield(lua_State *L, int table,
                             const char *fieldname, const std::string &value);
void               setintfield(lua_State *L, int table,
                             const char *fieldname, int value);
void               setfloatfield(lua_State *L, int table,
                             const char *fieldname, float value);
void               setboolfield(lua_State *L, int table,
                             const char *fieldname, bool value);

v3f                 checkFloatPos       (lua_State *L, int index);
v2f                 check_v2f           (lua_State *L, int index);
v3f                 check_v3f           (lua_State *L, int index);
v3s16               check_v3s16         (lua_State *L, int index);

v3f                 read_v3f            (lua_State *L, int index);
v2f                 read_v2f            (lua_State *L, int index);
v2s16               read_v2s16          (lua_State *L, int index);
v2s32               read_v2s32          (lua_State *L, int index);
video::SColor       read_ARGB8          (lua_State *L, int index);

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