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path: root/src/guiTextInputMenu.cpp
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/*
Minetest-c55
Copyright (C) 2010 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 General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.

You should have received a copy of the GNU 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 "guiTextInputMenu.h"
#include "debug.h"
#include "serialization.h"
#include <string>
#include <IGUICheckBox.h>
#include <IGUIEditBox.h>
#include <IGUIButton.h>
#include <IGUIStaticText.h>
#include <IGUIFont.h>

#include "gettext.h"

GUITextInputMenu::GUITextInputMenu(gui::IGUIEnvironment* env,
		gui::IGUIElement* parent, s32 id,
		IMenuManager *menumgr,
		TextDest *dest,
		std::wstring initial_text
):
	GUIModalMenu(env, parent, id, menumgr),
	m_dest(dest),
	m_initial_text(initial_text)
{
}

GUITextInputMenu::~GUITextInputMenu()
{
	removeChildren();
	if(m_dest)
		delete m_dest;
}

void GUITextInputMenu::removeChildren()
{
	{
		gui::IGUIElement *e = getElementFromId(256);
		if(e != NULL)
			e->remove();
	}
	{
		gui::IGUIElement *e = getElementFromId(257);
		if(e != NULL)
			e->remove();
	}
}

void GUITextInputMenu::regenerateGui(v2u32 screensize)
{
	std::wstring text;

	{
		gui::IGUIElement *e = getElementFromId(256);
		if(e != NULL)
		{
			text = e->getText();
		}
		else
		{
			text = m_initial_text;
			m_initial_text = L"";
		}
	}

	/*
		Remove stuff
	*/
	removeChildren();
	
	/*
		Calculate new sizes and positions
	*/
	core::rect<s32> rect(
			screensize.X/2 - 580/2,
			screensize.Y/2 - 300/2,
			screensize.X/2 + 580/2,
			screensize.Y/2 + 300/2
	);
	
	DesiredRect = rect;
	recalculateAbsolutePosition(false);

	v2s32 size = rect.getSize();

	/*
		Add stuff
	*/
	{
		core::rect<s32> rect(0, 0, 300, 30);
		rect = rect + v2s32(size.X/2-300/2, size.Y/2-30/2-25);
		gui::IGUIElement *e = 
		Environment->addEditBox(text.c_str(), rect, true, this, 256);
		Environment->setFocus(e);

		irr::SEvent evt;
		evt.EventType = EET_KEY_INPUT_EVENT;
		evt.KeyInput.Key = KEY_END;
		evt.KeyInput.PressedDown = true;
		e->OnEvent(evt);
	}
	changeCtype("");
	{
		core::rect<s32> rect(0, 0, 140, 30);
		rect = rect + v2s32(size.X/2-140/2, size.Y/2-30/2+25);
		Environment->addButton(rect, this, 257,
			wgettext("Proceed"));
	}
	changeCtype("C");
}

void GUITextInputMenu::drawMenu()
{
	gui::IGUISkin* skin = Environment->getSkin();
	if (!skin)
		return;
	video::IVideoDriver* driver = Environment->getVideoDriver();
	
	video::SColor bgcolor(140,0,0,0);
	driver->draw2DRectangle(bgcolor, AbsoluteRect, &AbsoluteClippingRect);

	gui::IGUIElement::draw();
}

void GUITextInputMenu::acceptInput()
{
	if(m_dest)
	{
		gui::IGUIElement *e = getElementFromId(256);
		if(e != NULL)
		{
			m_dest->gotText(e->getText());
		}
		delete m_dest;
		m_dest = NULL;
	}
}

bool GUITextInputMenu::OnEvent(const SEvent& event)
{
	if(event.EventType==EET_KEY_INPUT_EVENT)
	{
		if(event.KeyInput.Key==KEY_ESCAPE && event.KeyInput.PressedDown)
		{
			quitMenu();
			return true;
		}
		if(event.KeyInput.Key==KEY_RETURN && event.KeyInput.PressedDown)
		{
			acceptInput();
			quitMenu();
			return true;
		}
	}
	if(event.EventType==EET_GUI_EVENT)
	{
		if(event.GUIEvent.EventType==gui::EGET_ELEMENT_FOCUS_LOST
				&& isVisible())
		{
			if(!canTakeFocus(event.GUIEvent.Element))
			{
				dstream<<"GUITextInputMenu: Not allowing focus change."
						<<std::endl;
				// Returning true disables focus change
				return true;
			}
		}
		if(event.GUIEvent.EventType==gui::EGET_BUTTON_CLICKED)
		{
			switch(event.GUIEvent.Caller->getID())
			{
			case 257:
				acceptInput();
				quitMenu();
				// quitMenu deallocates menu
				return true;
			}
		}
		if(event.GUIEvent.EventType==gui::EGET_EDITBOX_ENTER)
		{
			switch(event.GUIEvent.Caller->getID())
			{
			case 256:
				acceptInput();
				quitMenu();
				// quitMenu deallocates menu
				return true;
			}
		}
	}

	return Parent ? Parent->OnEvent(event) : false;
}

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/*
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 "collision.h"
#include "environment.h"
#include "tool.h" // For ToolCapabilities
#include "gamedef.h"
#include "nodedef.h"
#include "remoteplayer.h"
#include "server.h"
#include "scripting_server.h"
#include "genericobject.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_pending_removal = 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)
			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) const { return false; }

	virtual bool getSelectionBox(aabb3f *toset) const { return false; }

	bool collideWithObjects() const { return false; }

private:
	float m_timer1;
	float m_age;
};

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

/*
	UnitSAO
 */

UnitSAO::UnitSAO(ServerEnvironment *env, v3f pos):
	ServerActiveObject(env, pos)
{
	// Initialize something to armor groups
	m_armor_groups["fleshy"] = 100;
}

bool UnitSAO::isAttached() const
{
	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 UnitSAO::setArmorGroups(const ItemGroupList &armor_groups)
{
	m_armor_groups = armor_groups;
	m_armor_groups_sent = false;
}

const ItemGroupList &UnitSAO::getArmorGroups()
{
	return m_armor_groups;
}

void UnitSAO::setAnimation(v2f frame_range, float frame_speed, float frame_blend, bool frame_loop)
{
	// store these so they can be updated to clients
	m_animation_range = frame_range;
	m_animation_speed = frame_speed;
	m_animation_blend = frame_blend;
	m_animation_loop = frame_loop;
	m_animation_sent = false;
}

void UnitSAO::getAnimation(v2f *frame_range, float *frame_speed, float *frame_blend, bool *frame_loop)
{
	*frame_range = m_animation_range;
	*frame_speed = m_animation_speed;
	*frame_blend = m_animation_blend;
	*frame_loop = m_animation_loop;
}

void UnitSAO::setAnimationSpeed(float frame_speed)
{
	m_animation_speed = frame_speed;
	m_animation_speed_sent = false;
}

void UnitSAO::setBonePosition(const std::string &bone, v3f position, v3f rotation)
{
	// store these so they can be updated to clients
	m_bone_position[bone] = core::vector2d<v3f>(position, rotation);
	m_bone_position_sent = false;
}

void UnitSAO::getBonePosition(const std::string &bone, v3f *position, v3f *rotation)
{
	*position = m_bone_position[bone].X;
	*rotation = m_bone_position[bone].Y;
}

void UnitSAO::setAttachment(int parent_id, const std::string &bone, v3f position, v3f rotation)
{
	// Attachments need to be handled on both the server and client.
	// If we just attach on the server, we can only copy the position of the parent. Attachments
	// are still sent to clients at an interval so players might see them lagging, plus we can't
	// read and attach to skeletal bones.
	// If we just attach on the client, the server still sees the child at its original location.
	// This breaks some things so we also give the server the most accurate representation
	// even if players only see the client changes.

	m_attachment_parent_id = parent_id;
	m_attachment_bone = bone;
	m_attachment_position = position;
	m_attachment_rotation = rotation;
	m_attachment_sent = false;
}

void UnitSAO::getAttachment(int *parent_id, std::string *bone, v3f *position,
	v3f *rotation)
{
	*parent_id = m_attachment_parent_id;
	*bone = m_attachment_bone;
	*position = m_attachment_position;
	*rotation = m_attachment_rotation;
}

void UnitSAO::addAttachmentChild(int child_id)
{
	m_attachment_child_ids.insert(child_id);
}

void UnitSAO::removeAttachmentChild(int child_id)
{
	m_attachment_child_ids.erase(child_id);
}

const std::unordered_set<int> &UnitSAO::getAttachmentChildIds()
{
	return m_attachment_child_ids;
}

ObjectProperties* UnitSAO::accessObjectProperties()
{
	return &m_prop;
}

void UnitSAO::notifyObjectPropertiesModified()
{
	m_properties_sent = false;
}

/*
	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):
	UnitSAO(env, pos),
	m_init_name(name),
	m_init_state(state)
{
	// Only register type if no environment supplied
	if(env == NULL){
		ServerActiveObject::registerType(getType(), create);
		return;
	}
}

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

	for (u32 attached_particle_spawner : m_attached_particle_spawners) {
		m_env->deleteParticleSpawner(attached_particle_spawner, false);
	}
}

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, dtime_s);
	} else {
		m_prop.infotext = m_init_name;
	}
}

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.empty()) {
		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;
}

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);
	}

	// Remove LuaEntity beyond terrain edges
	{
		ServerMap *map = dynamic_cast<ServerMap *>(&m_env->getMap());
		assert(map);
		if (!m_pending_removal &&
				map->saoPositionOverLimit(m_base_position)) {
			infostream << "Removing SAO " << m_id << "(" << m_init_name
				<< "), outside of limits" << std::endl;
			m_pending_removal = true;
			return;
		}
	}

	if (!send_recommended)
		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) {
		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) {
		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_animation_speed_sent) {
		m_animation_speed_sent = true;
		std::string str = gob_cmd_update_animation_speed(m_animation_speed);
		// create message and add to list
		ActiveObjectMessage aom(getId(), true, str);
		m_messages_out.push(aom);
	}

	if (!m_bone_position_sent) {
		m_bone_position_sent = true;
		for (std::unordered_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) {
		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);

	// protocol >= 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);

	std::ostringstream msg_os(std::ios::binary);
	msg_os << serializeLongString(getPropertyPacket()); // message 1
	msg_os << serializeLongString(gob_cmd_update_armor_groups(m_armor_groups)); // 2
	msg_os << serializeLongString(gob_cmd_update_animation(
		m_animation_range, m_animation_speed, m_animation_blend, m_animation_loop)); // 3
	for (std::unordered_map<std::string, core::vector2d<v3f>>::const_iterator
			ii = m_bone_position.begin(); ii != m_bone_position.end(); ++ii) {
		msg_os << serializeLongString(gob_cmd_update_bone_position((*ii).first,
				(*ii).second.X, (*ii).second.Y)); // m_bone_position.size
	}
	msg_os << serializeLongString(gob_cmd_update_attachment(m_attachment_parent_id,
		m_attachment_bone, m_attachment_position, m_attachment_rotation)); // 4
	int message_count = 4 + m_bone_position.size();
	for (std::unordered_set<int>::const_iterator ii = m_attachment_child_ids.begin();
			(ii != m_attachment_child_ids.end()); ++ii) {
		if (ServerActiveObject *obj = m_env->getActiveObject(*ii)) {
			message_count++;
			msg_os << serializeLongString(gob_cmd_update_infant(*ii, obj->getSendType(),
				obj->getClientInitializationData(protocol_version)));
		}
	}

	msg_os << serializeLongString(gob_cmd_set_texture_mod(m_current_texture_modifier));
	message_count++;

	writeU8(os, message_count);
	os.write(msg_os.str().c_str(), msg_os.str().size());

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

void LuaEntitySAO::getStaticData(std::string *result) const
{
	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);
	*result = 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_pending_removal = 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);

	bool damage_handled = m_env->getScriptIface()->luaentity_Punch(m_id, puncher,
			time_from_last_punch, toolcap, dir, result.did_punch ? result.damage : 0);

	if (!damage_handled) {
		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_pending_removal = true;
		m_env->getScriptIface()->luaentity_on_death(m_id, puncher);
	}

	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(const 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
{
	return m_hp;
}

void LuaEntitySAO::setVelocity(v3f velocity)
{
	m_velocity = velocity;
}

v3f LuaEntitySAO::getVelocity()
{
	return m_velocity;
}

void LuaEntitySAO::setAcceleration(v3f acceleration)
{
	m_acceleration = acceleration;
}

v3f LuaEntitySAO::getAcceleration()
{
	return m_acceleration;
}

void LuaEntitySAO::setTextureMod(const std::string &mod)
{
	std::string str = gob_cmd_set_texture_mod(mod);
	m_current_texture_modifier = mod;
	// create message and add to list
	ActiveObjectMessage aom(getId(), true, str);
	m_messages_out.push(aom);
}

std::string LuaEntitySAO::getTextureMod() const
{
	return m_current_texture_modifier;
}

void LuaEntitySAO::setSprite(v2s16 p, int num_frames, float framelength,
		bool select_horiz_by_yawpitch)
{
	std::string str = gob_cmd_set_sprite(
		p,
		num_frames,
		framelength,
		select_horiz_by_yawpitch
	);
	// create message and add to list
	ActiveObjectMessage aom(getId(), true, str);
	m_messages_out.push(aom);
}

std::string LuaEntitySAO::getName()
{
	return m_init_name;
}

std::string LuaEntitySAO::getPropertyPacket()
{
	return gob_cmd_set_properties(m_prop);
}

void LuaEntitySAO::sendPosition(bool do_interpolate, bool is_movement_end)
{
	// If the object is attached client-side, don't waste bandwidth sending its position to clients
	if(isAttached())
		return;

	m_last_sent_move_precision = m_base_position.getDistanceFrom(
			m_last_sent_position);
	m_last_sent_position_timer = 0;
	m_last_sent_yaw = m_yaw;
	m_last_sent_position = m_base_position;
	m_last_sent_velocity = m_velocity;
	//m_last_sent_acceleration = m_acceleration;

	float update_interval = m_env->getSendRecommendedInterval();

	std::string str = gob_cmd_update_position(
		m_base_position,
		m_velocity,
		m_acceleration,
		m_yaw,
		do_interpolate,
		is_movement_end,
		update_interval
	);
	// create message and add to list
	ActiveObjectMessage aom(getId(), false, str);
	m_messages_out.push(aom);
}

bool LuaEntitySAO::getCollisionBox(aabb3f *toset) const
{
	if (m_prop.physical)
	{
		//update collision box
		toset->MinEdge = m_prop.collisionbox.MinEdge * BS;
		toset->MaxEdge = m_prop.collisionbox.MaxEdge * BS;

		toset->MinEdge += m_base_position;
		toset->MaxEdge += m_base_position;

		return true;
	}

	return false;
}

bool LuaEntitySAO::getSelectionBox(aabb3f *toset) const
{
	if (!m_prop.is_visible || !m_prop.pointable) {
		return false;
	}

	toset->MinEdge = m_prop.selectionbox.MinEdge * BS;
	toset->MaxEdge = m_prop.selectionbox.MaxEdge * BS;

	return true;
}

bool LuaEntitySAO::collideWithObjects() const
{
	return m_prop.collideWithObjects;
}

/*
	PlayerSAO
*/

// No prototype, PlayerSAO does not need to be deserialized

PlayerSAO::PlayerSAO(ServerEnvironment *env_, RemotePlayer *player_, session_t peer_id_,
		bool is_singleplayer):
	UnitSAO(env_, v3f(0,0,0)),
	m_player(player_),
	m_peer_id(peer_id_),
	m_is_singleplayer(is_singleplayer)
{
	assert(m_peer_id != 0);	// pre-condition

	m_prop.hp_max = PLAYER_MAX_HP_DEFAULT;
	m_prop.breath_max = PLAYER_MAX_BREATH_DEFAULT;
	m_prop.physical = false;
	m_prop.weight = 75;
	m_prop.collisionbox = aabb3f(-0.3f, 0.0f, -0.3f, 0.3f, 1.77f, 0.3f);
	m_prop.selectionbox = aabb3f(-0.3f, 0.0f, -0.3f, 0.3f, 1.77f, 0.3f);
	m_prop.pointable = true;
	// start of default appearance, this should be overwritten by LUA
	m_prop.visual = "upright_sprite";
	m_prop.visual_size = v2f(1, 2);
	m_prop.textures.clear();
	m_prop.textures.emplace_back("player.png");
	m_prop.textures.emplace_back("player_back.png");
	m_prop.colors.clear();
	m_prop.colors.emplace_back(255, 255, 255, 255);
	m_prop.spritediv = v2s16(1,1);
	// end of default appearance
	m_prop.is_visible = true;
	m_prop.makes_footstep_sound = true;
	m_prop.stepheight = PLAYER_DEFAULT_STEPHEIGHT * BS;
	m_prop.can_zoom = true;
	m_hp = m_prop.hp_max;
	m_breath = m_prop.breath_max;
}

PlayerSAO::~PlayerSAO()
{
	if(m_inventory != &m_player->inventory)
		delete m_inventory;
}

void PlayerSAO::finalize(RemotePlayer *player, const std::set<std::string> &privs)
{
	assert(player);
	m_player = player;
	m_privs = privs;
	m_inventory = &m_player->inventory;
}

v3f PlayerSAO::getEyeOffset() const
{
	return v3f(0, BS * 1.625f, 0);
}

std::string PlayerSAO::getDescription()
{
	return std::string("player ") + m_player->getName();
}

// Called after id has been set and has been inserted in environment
void PlayerSAO::addedToEnvironment(u32 dtime_s)
{
	ServerActiveObject::addedToEnvironment(dtime_s);
	ServerActiveObject::setBasePosition(m_base_position);
	m_player->setPlayerSAO(this);
	m_player->setPeerId(m_peer_id);
	m_last_good_position = m_base_position;
}

// Called before removing from environment
void PlayerSAO::removingFromEnvironment()
{
	ServerActiveObject::removingFromEnvironment();
	if (m_player->getPlayerSAO() == this) {
		unlinkPlayerSessionAndSave();