minetest/src/scriptapi_object.h

/*
Minetest-c55
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.
*/

#ifndef LUA_OBJECT_H_
#define LUA_OBJECT_H_

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

#include "serverobject.h"
#include "content_sao.h"
#include "player.h"

/*
	ObjectRef
*/

class ObjectRef
{
private:
	ServerActiveObject *m_object;

	static const char className[];
	static const luaL_reg methods[];
public:
	static ObjectRef *checkobject(lua_State *L, int narg);

	static ServerActiveObject* getobject(ObjectRef *ref);
private:
	static LuaEntitySAO* getluaobject(ObjectRef *ref);

	static PlayerSAO* getplayersao(ObjectRef *ref);

	static Player* getplayer(ObjectRef *ref);

	// Exported functions

	// garbage collector
	static int gc_object(lua_State *L);

	// remove(self)
	static int l_remove(lua_State *L);

	// getpos(self)
	// returns: {x=num, y=num, z=num}
	static int l_getpos(lua_State *L);

	// setpos(self, pos)
	static int l_setpos(lua_State *L);

	// moveto(self, pos, continuous=false)
	static int l_moveto(lua_State *L);

	// punch(self, puncher, time_from_last_punch, tool_capabilities, dir)
	static int l_punch(lua_State *L);

	// right_click(self, clicker); clicker = an another ObjectRef
	static int l_right_click(lua_State *L);

	// set_hp(self, hp)
	// hp = number of hitpoints (2 * number of hearts)
	// returns: nil
	static int l_set_hp(lua_State *L);

	// get_hp(self)
	// returns: number of hitpoints (2 * number of hearts)
	// 0 if not applicable to this type of object
	static int l_get_hp(lua_State *L);

	// get_inventory(self)
	static int l_get_inventory(lua_State *L);

	// get_wield_list(self)
	static int l_get_wield_list(lua_State *L);

	// get_wield_index(self)
	static int l_get_wield_index(lua_State *L);

	// get_wielded_item(self)
	static int l_get_wielded_item(lua_State *L);

	// set_wielded_item(self, itemstack or itemstring or table or nil)
	static int l_set_wielded_item(lua_State *L);

	// set_armor_groups(self, groups)
	static int l_set_armor_groups(lua_State *L);

	// set_animation(self, frame_range, frame_speed, frame_blend)
	static int l_set_animation(lua_State *L);

	// set_bone_position(self, std::string bone, v3f position, v3f rotation)
	static int l_set_bone_position(lua_State *L);

	// set_attach(self, parent, bone, position, rotation)
	static int l_set_attach(lua_State *L);

	// set_detach(self)
	static int l_set_detach(lua_State *L);

	// set_properties(self, properties)
	static int l_set_properties(lua_State *L);

	/* LuaEntitySAO-only */

	// setvelocity(self, {x=num, y=num, z=num})
	static int l_setvelocity(lua_State *L);

	// getvelocity(self)
	static int l_getvelocity(lua_State *L);

	// setacceleration(self, {x=num, y=num, z=num})
	static int l_setacceleration(lua_State *L);

	// getacceleration(self)
	static int l_getacceleration(lua_State *L);

	// setyaw(self, radians)
	static int l_setyaw(lua_State *L);

	// getyaw(self)
	static int l_getyaw(lua_State *L);

	// settexturemod(self, mod)
	static int l_settexturemod(lua_State *L);

	// setsprite(self, p={x=0,y=0}, num_frames=1, framelength=0.2,
	//           select_horiz_by_yawpitch=false)
	static int l_setsprite(lua_State *L);

	// DEPRECATED
	// get_entity_name(self)
	static int l_get_entity_name(lua_State *L);

	// get_luaentity(self)
	static int l_get_luaentity(lua_State *L);

	/* Player-only */

	// is_player(self)
	static int l_is_player(lua_State *L);

	// get_player_name(self)
	static int l_get_player_name(lua_State *L);

	// get_look_dir(self)
	static int l_get_look_dir(lua_State *L);

	// get_look_pitch(self)
	static int l_get_look_pitch(lua_State *L);

	// get_look_yaw(self)
	static int l_get_look_yaw(lua_State *L);

	// set_inventory_formspec(self, formspec)
	static int l_set_inventory_formspec(lua_State *L);

	// get_inventory_formspec(self) -> formspec
	static int l_get_inventory_formspec(lua_State *L);

	// get_player_control(self)
	static int l_get_player_control(lua_State *L);

	// get_player_control_bits(self)
	static int l_get_player_control_bits(lua_State *L);

public:
	ObjectRef(ServerActiveObject *object);

	~ObjectRef();

	// Creates an ObjectRef and leaves it on top of stack
	// Not callable from Lua; all references are created on the C side.
	static void create(lua_State *L, ServerActiveObject *object);

	static void set_null(lua_State *L);

	static void Register(lua_State *L);
};

/*****************************************************************************/
/* scriptapi internal                                                        */
/*****************************************************************************/
// Creates a new anonymous reference if cobj=NULL or id=0
void objectref_get_or_create(lua_State *L,
		ServerActiveObject *cobj);
void objectref_get(lua_State *L, u16 id);
void read_object_properties(lua_State *L, int index,
		ObjectProperties *prop);

/*****************************************************************************/
/* Minetest interface                                                        */
/*****************************************************************************/
void scriptapi_add_object_reference(lua_State *L, ServerActiveObject *cobj);
void scriptapi_rm_object_reference(lua_State *L, ServerActiveObject *cobj);

#endif /* LUA_OBJECT_H_ */