index : minetest.git	gpcf lifo-fixes release
	modified minetest for gpcfs purposes	gpcf

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log msg author committer range

	Commit message (Expand)	Author	Age
*	Split server/client port setting to avoid port number clashes in mainmenu	sapier	2013-11-28
*	Don't use variable length arrays	ShadowNinja	2013-11-28
*	Rollback fixes and get_node_actions	ShadowNinja	2013-11-27
*	SQLite rollback	Mario Barrera	2013-11-27
*	Fix line_of_sight (AGAIN)	sapier	2013-11-25
*	Reenable -dev suffix	PilzAdam	2013-11-24
*	Bump version to 0.4.8	kwolekr	2013-11-24
*	Don't continue trying to deserialize blank block data	kwolekr	2013-11-24
*	Temporary disable local install button due to irrlicht dialog breaking locali...	sapier	2013-11-24
*	Fix my name (doesn't display correctly because of utf8 characters)	Novatux	2013-11-23
*	Fix rename modpack button not working, fixes #1019	Sfan5	2013-11-23
*	Run updatepo.sh	PilzAdam	2013-11-23
*	Translated using Weblate (Spanish)	Pablo Lezaeta	2013-11-23
*	Translated using Weblate (Russian)	Anton Tsyganenko	2013-11-23
*	Translated using Weblate (Polish)	Maciej Kasatkin	2013-11-23
*	Translated using Weblate (Czech)	Jakub Vaněk	2013-11-23
*	Translated using Weblate (Romanian)	King Artur	2013-11-23
*	Translated using Weblate (Czech)	Jakub Vaněk	2013-11-23
*	Translated using Weblate (Czech)	Frantisek Simorda	2013-11-23
*	Translated using Weblate (Spanish)	Pablo Lezaeta	2013-11-23
*	Translated using Weblate (Czech)	Heisenberg CZE	2013-11-23
*	Translated using Weblate (Spanish)	Pablo Lezaeta	2013-11-23
*	Translated using Weblate (Czech)	Petr Hála	2013-11-23
*	Translated using Weblate (Czech)	Heisenberg CZE	2013-11-23
*	Translated using Weblate (Czech)	Heisenberg CZE	2013-11-23
*	Translated using Weblate (Czech)	Petr Hála	2013-11-23
*	Fix invalid escape sequence in database migration code	Kahrl	2013-11-23
*	Prevent enabling Shaders if Direct3D is used	Sfan5	2013-11-23
*	Fix crash when pressing Enter key in formspec menu	Kahrl	2013-11-23
*	Fix usage of 'minetest' where 'engine' was intended	ShadowNinja	2013-11-21
*	Fix possible implicit conversion of NULL to std::string	kwolekr	2013-11-21
*	LuaVoxelManip: Update parameter index of set_lighting()	kwolekr	2013-11-21
*	Mapgen V6: Respect water_level setting	kwolekr	2013-11-21
*	Fix modmanager screenshot path	BlockMen	2013-11-19
*	fix gettext compile issues under win32	MetaDucky	2013-11-18
*	Fix issue #1009 (minetest.get_connected_players() returns non-existing players)	kwolekr	2013-11-17
*	Increase liquid_loop_max to 10000 again	PilzAdam	2013-11-17
*	Revert patch 58f036ad1 that causes object duplication (which tried to fix obj...	Perttu Ahola	2013-11-17
*	Fix Result of processed Request was written to invalid (non existent) ResultQ...	sapier	2013-11-17
*	Add missing RequestQueue doc	sapier	2013-11-17
*	Fix multicaller support in RequestQueue	sapier	2013-11-17
*	Do the same for LevelDB interface	kwolekr	2013-11-17
*	Handle blank blocks in database	kwolekr	2013-11-17
*	Revert "Don't use msvc libs for mingw build"	kwolekr	2013-11-17
*	Replace print()s with minetest.log() in builtin	PilzAdam	2013-11-17
*	Prevent shaders from being created when disabled	kwolekr	2013-11-17
*	Add CURL_DLL search to show up CURL_DLL in cmake gui and don't silently ignor...	sapier	2013-11-17
*	Don't use msvc libs for mingw build	sapier	2013-11-17
*	Decoration: Stop DecoSimple::resolveNodeNames from complaining about no node ...	kwolekr	2013-11-17
*	Actually fix weather	kwolekr	2013-11-17

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generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 09:26:50 +0000

/*
Minetest
Copyright (C) 2010-2013 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.
*/

#include "content_sao.h"
#include "util/serialize.h"
#include "util/mathconstants.h"
#include "collision.h"
#include "environment.h"
#include "settings.h"
#include "serialization.h" // For compressZlib
#include "tool.h" // For ToolCapabilities
#include "gamedef.h"
#include "player.h"
#include "server.h"
#include "scripting_game.h"
#include "genericobject.h"
#include "log.h"

std::map<u16, ServerActiveObject::Factory> ServerActiveObject::m_types;

/*
	TestSAO
*/

class TestSAO : public ServerActiveObject
{
public:
	TestSAO(ServerEnvironment *env, v3f pos):
		ServerActiveObject(env, pos),
		m_timer1(0),
		m_age(0)
	{
		ServerActiveObject::registerType(getType(), create);
	}
	ActiveObjectType getType() const
	{ return ACTIVEOBJECT_TYPE_TEST; }

	static ServerActiveObject* create(ServerEnvironment *env, v3f pos,
			const std::string &data)
	{
		return new TestSAO(env, pos);
	}

	void step(float dtime, bool send_recommended)
	{
		m_age += dtime;
		if(m_age > 10)
		{
			m_removed = true;
			return;
		}

		m_base_position.Y += dtime * BS * 2;
		if(m_base_position.Y > 8*BS)
			m_base_position.Y = 2*BS;

		if(send_recommended == false)
			return;

		m_timer1 -= dtime;
		if(m_timer1 < 0.0)
		{
			m_timer1 += 0.125;

			std::string data;

			data += itos(0); // 0 = position
			data += " ";
			data += itos(m_base_position.X);
			data += " ";
			data += itos(m_base_position.Y);
			data += " ";
			data += itos(m_base_position.Z);

			ActiveObjectMessage aom(getId(), false, data);
			m_messages_out.push(aom);
		}
	}

	bool getCollisionBox(aabb3f *toset) {
		return false;
	}

	bool collideWithObjects() {
		return false;
	}

private:
	float m_timer1;
	float m_age;
};

// Prototype (registers item for deserialization)
TestSAO proto_TestSAO(NULL, v3f(0,0,0));

/*
	LuaEntitySAO
*/

// Prototype (registers item for deserialization)
LuaEntitySAO proto_LuaEntitySAO(NULL, v3f(0,0,0), "_prototype", "");

LuaEntitySAO::LuaEntitySAO(ServerEnvironment *env, v3f pos,
		const std::string &name, const std::string &state):
	ServerActiveObject(env, pos),
	m_init_name(name),
	m_init_state(state),
	m_registered(false),
	m_hp(-1),
	m_velocity(0,0,0),
	m_acceleration(0,0,0),
	m_yaw(0),
	m_properties_sent(true),
	m_last_sent_yaw(0),
	m_last_sent_position(0,0,0),
	m_last_sent_velocity(0,0,0),
	m_last_sent_position_timer(0),
	m_last_sent_move_precision(0),
	m_armor_groups_sent(false),
	m_animation_speed(0),
	m_animation_blend(0),
	m_animation_loop(true),
	m_animation_sent(false),
	m_bone_position_sent(false),
	m_attachment_parent_id(0),
	m_attachment_sent(false)
{
	// Only register type if no environment supplied
	if(env == NULL){
		ServerActiveObject::registerType(getType(), create);
		return;
	}

	// Initialize something to armor groups
	m_armor_groups["fleshy"] = 100;
}

LuaEntitySAO::~LuaEntitySAO()
{
	if(m_registered){
		m_env->getScriptIface()->luaentity_Remove(m_id);
	}
}

void LuaEntitySAO::addedToEnvironment(u32 dtime_s)
{
	ServerActiveObject::addedToEnvironment(dtime_s);

	// Create entity from name
	m_registered = m_env->getScriptIface()->
		luaentity_Add(m_id, m_init_name.c_str());

	if(m_registered){
		// Get properties
		m_env->getScriptIface()->
			luaentity_GetProperties(m_id, &m_prop);
		// Initialize HP from properties
		m_hp = m_prop.hp_max;
		// Activate entity, supplying serialized state
		m_env->getScriptIface()->
			luaentity_Activate(m_id, m_init_state.c_str(), dtime_s);
	}
}

ServerActiveObject* LuaEntitySAO::create(ServerEnvironment *env, v3f pos,
		const std::string &data)
{
	std::string name;
	std::string state;
	s16 hp = 1;
	v3f velocity;
	float yaw = 0;
	if(data != ""){
		std::istringstream is(data, std::ios::binary);
		// read version
		u8 version = readU8(is);
		// check if version is supported
		if(version == 0){
			name = deSerializeString(is);
			state = deSerializeLongString(is);
		}
		else if(version == 1){
			name = deSerializeString(is);
			state = deSerializeLongString(is);
			hp = readS16(is);
			velocity = readV3F1000(is);
			yaw = readF1000(is);
		}
	}
	// create object
	infostream<<"LuaEntitySAO::create(name=\""<<name<<"\" state=\""
			<<state<<"\")"<<std::endl;
	LuaEntitySAO *sao = new LuaEntitySAO(env, pos, name, state);
	sao->m_hp = hp;
	sao->m_velocity = velocity;
	sao->m_yaw = yaw;
	return sao;
}

bool LuaEntitySAO::isAttached()
{
	if(!m_attachment_parent_id)
		return false;
	// Check if the parent still exists
	ServerActiveObject *obj = m_env->getActiveObject(m_attachment_parent_id);
	if(obj)
		return true;
	return false;
}

void LuaEntitySAO::step(float dtime, bool send_recommended)
{
	if(!m_properties_sent)
	{
		m_properties_sent = true;
		std::string str = getPropertyPacket();
		// create message and add to list
		ActiveObjectMessage aom(getId(), true, str);
		m_messages_out.push(aom);
	}

	// If attached, check that our parent is still there. If it isn't, detach.
	if(m_attachment_parent_id && !isAttached())
	{
		m_attachment_parent_id = 0;
		m_attachment_bone = "";
		m_attachment_position = v3f(0,0,0);
		m_attachment_rotation = v3f(0,0,0);
		sendPosition(false, true);
	}

	m_last_sent_position_timer += dtime;

	// Each frame, parent position is copied if the object is attached, otherwise it's calculated normally
	// If the object gets detached this comes into effect automatically from the last known origin
	if(isAttached())
	{
		v3f pos = m_env->getActiveObject(m_attachment_parent_id)->getBasePosition();
		m_base_position = pos;
		m_velocity = v3f(0,0,0);
		m_acceleration = v3f(0,0,0);
	}
	else
	{
		if(m_prop.physical){
			aabb3f box = m_prop.collisionbox;
			box.MinEdge *= BS;
			box.MaxEdge *= BS;
			collisionMoveResult moveresult;
			f32 pos_max_d = BS*0.25; // Distance per iteration
			v3f p_pos = m_base_position;
			v3f p_velocity = m_velocity;
			v3f p_acceleration = m_acceleration;
			moveresult = collisionMoveSimple(m_env,m_env->getGameDef(),
					pos_max_d, box, m_prop.stepheight, dtime,
					&p_pos, &p_velocity, p_acceleration,
					this, m_prop.collideWithObjects);

			// Apply results
			m_base_position = p_pos;
			m_velocity = p_velocity;
			m_acceleration = p_acceleration;
		} else {
			m_base_position += dtime * m_velocity + 0.5 * dtime
					* dtime * m_acceleration;
			m_velocity += dtime * m_acceleration;
		}

		if((m_prop.automatic_face_movement_dir) &&
				(fabs(m_velocity.Z) > 0.001 || fabs(m_velocity.X) > 0.001))
		{
			float optimal_yaw = atan2(m_velocity.Z,m_velocity.X) * 180 / M_PI
					+ m_prop.automatic_face_movement_dir_offset;
			float max_rotation_delta =
					dtime * m_prop.automatic_face_movement_max_rotation_per_sec;

			if ((m_prop.automatic_face_movement_max_rotation_per_sec > 0) &&
				(fabs(m_yaw - optimal_yaw) > max_rotation_delta)) {

				m_yaw = optimal_yaw < m_yaw ? m_yaw - max_rotation_delta : m_yaw + max_rotation_delta;
			} else {
				m_yaw = optimal_yaw;
			}
		}
	}

	if(m_registered){
		m_env->getScriptIface()->luaentity_Step(m_id, dtime);
	}

	if(send_recommended == false)
		return;

	if(!isAttached())
	{
		// TODO: force send when acceleration changes enough?
		float minchange = 0.2*BS;
		if(m_last_sent_position_timer > 1.0){
			minchange = 0.01*BS;
		} else if(m_last_sent_position_timer > 0.2){
			minchange = 0.05*BS;
		}
		float move_d = m_base_position.getDistanceFrom(m_last_sent_position);
		move_d += m_last_sent_move_precision;
		float vel_d = m_velocity.getDistanceFrom(m_last_sent_velocity);
		if(move_d > minchange || vel_d > minchange ||
				fabs(m_yaw - m_last_sent_yaw) > 1.0){
			sendPosition(true, false);
		}
	}

	if(m_armor_groups_sent == false){
		m_armor_groups_sent = true;
		std::string str = gob_cmd_update_armor_groups(
				m_armor_groups);
		// create message and add to list
		ActiveObjectMessage aom(getId(), true, str);
		m_messages_out.push(aom);
	}

	if(m_animation_sent == false){
		m_animation_sent = true;
		std::string str = gob_cmd_update_animation(
			m_animation_range, m_animation_speed, m_animation_blend, m_animation_loop);
		// create message and add to list
		ActiveObjectMessage aom(getId(), true, str);
		m_messages_out.push(aom);
	}

	if(m_bone_position_sent == false){
		m_bone_position_sent = true;
		for(std::map<std::string, core::vector2d<v3f> >::const_iterator ii = m_bone_position.begin(); ii != m_bone_position.end(); ++ii){
			std::string str = gob_cmd_update_bone_position((*ii).first, (*ii).second.X, (*ii).second.Y);
			// create message and add to list
			ActiveObjectMessage aom(getId(), true, str);
			m_messages_out.push(aom);
		}
	}

	if(m_attachment_sent == false){
		m_attachment_sent = true;
		std::string str = gob_cmd_update_attachment(m_attachment_parent_id, m_attachment_bone, m_attachment_position, m_attachment_rotation);
		// create message and add to list
		ActiveObjectMessage aom(getId(), true, str);
		m_messages_out.push(aom);
	}
}

std::string LuaEntitySAO::getClientInitializationData(u16 protocol_version)
{
	std::ostringstream os(std::ios::binary);

	if(protocol_version >= 14)
	{
		writeU8(os, 1); // version
		os<<serializeString(""); // name
		writeU8(os, 0); // is_player
		writeS16(os, getId()); //id
		writeV3F1000(os, m_base_position);
		writeF1000(os, m_yaw);
		writeS16(os, m_hp);

		writeU8(os, 4 + m_bone_position.size()); // number of messages stuffed in here
		os<<serializeLongString(getPropertyPacket()); // message 1
		os<<serializeLongString(gob_cmd_update_armor_groups(m_armor_groups)); // 2
		os<<serializeLongString(gob_cmd_update_animation(
			m_animation_range, m_animation_speed, m_animation_blend, m_animation_loop)); // 3
		for(std::map<std::string, core::vector2d<v3f> >::const_iterator ii = m_bone_position.begin(); ii != m_bone_position.end(); ++ii){
			os<<serializeLongString(gob_cmd_update_bone_position((*ii).first, (*ii).second.X, (*ii).second.Y)); // m_bone_position.size
		}
		os<<serializeLongString(gob_cmd_update_attachment(m_attachment_parent_id, m_attachment_bone, m_attachment_position, m_attachment_rotation)); // 4
	}
	else
	{
		writeU8(os, 0); // version
		os<<serializeString(""); // name
		writeU8(os, 0); // is_player
		writeV3F1000(os, m_base_position);
		writeF1000(os, m_yaw);
		writeS16(os, m_hp);
		writeU8(os, 2); // number of messages stuffed in here
		os<<serializeLongString(getPropertyPacket()); // message 1
		os<<serializeLongString(gob_cmd_update_armor_groups(m_armor_groups)); // 2
	}

	// return result
	return os.str();
}

std::string LuaEntitySAO::getStaticData()
{
	verbosestream<<FUNCTION_NAME<<std::endl;
	std::ostringstream os(std::ios::binary);
	// version
	writeU8(os, 1);
	// name
	os<<serializeString(m_init_name);
	// state
	if(m_registered){
		std::string state = m_env->getScriptIface()->
			luaentity_GetStaticdata(m_id);
		os<<serializeLongString(state);
	} else {
		os<<serializeLongString(m_init_state);
	}
	// hp
	writeS16(os, m_hp);
	// velocity
	writeV3F1000(os, m_velocity);
	// yaw
	writeF1000(os, m_yaw);
	return os.str();
}

int LuaEntitySAO::punch(v3f dir,
		const ToolCapabilities *toolcap,
		ServerActiveObject *puncher,
		float time_from_last_punch)
{
	if (!m_registered){
		// Delete unknown LuaEntities when punched
		m_removed = true;
		return 0;
	}

	// It's best that attachments cannot be punched
	if (isAttached())
		return 0;

	ItemStack *punchitem = NULL;
	ItemStack punchitem_static;
	if (puncher) {
		punchitem_static = puncher->getWieldedItem();
		punchitem = &punchitem_static;
	}

	PunchDamageResult result = getPunchDamage(
			m_armor_groups,
			toolcap,
			punchitem,
			time_from_last_punch);

	if (result.did_punch) {
		setHP(getHP() - result.damage);

		if (result.damage > 0) {
			std::string punchername = puncher ? puncher->getDescription() : "nil";

			actionstream << getDescription() << " punched by "
					<< punchername << ", damage " << result.damage
					<< " hp, health now " << getHP() << " hp" << std::endl;
		}

		std::string str = gob_cmd_punched(result.damage, getHP());
		// create message and add to list
		ActiveObjectMessage aom(getId(), true, str);
		m_messages_out.push(aom);
	}

	if (getHP() == 0)
		m_removed = true;

	m_env->getScriptIface()->luaentity_Punch(m_id, puncher,
			time_from_last_punch, toolcap, dir);

	return result.wear;
}

void LuaEntitySAO::rightClick(ServerActiveObject *clicker)
{
	if (!m_registered)
		return;
	// It's best that attachments cannot be clicked
	if (isAttached())
		return;
	m_env->getScriptIface()->luaentity_Rightclick(m_id, clicker);
}

void LuaEntitySAO::setPos(v3f pos)
{
	if(isAttached())
		return;
	m_base_position = pos;
	sendPosition(false, true);
}

void LuaEntitySAO::moveTo(v3f pos, bool continuous)
{
	if(isAttached())
		return;
	m_base_position = pos;
	if(!continuous)
		sendPosition(true, true);
}

float LuaEntitySAO::getMinimumSavedMovement()
{
	return 0.1 * BS;
}

std::string LuaEntitySAO::getDescription()
{
	std::ostringstream os(std::ios::binary);
	os<<"LuaEntitySAO at (";
	os<<(m_base_position.X/BS)<<",";
	os<<(m_base_position.Y/BS)<<",";
	os<<(m_base_position.Z/BS);
	os<<")";
	return os.str();
}

void LuaEntitySAO::setHP(s16 hp)
{
	if(hp < 0) hp = 0;
	m_hp = hp;
}

s16 LuaEntitySAO::getHP() const