forked from minetest/minetest
/
content_sao.cpp
1432 lines (1234 loc) · 36.9 KB
/
content_sao.cpp
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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 "serverscripting.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_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) 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),
m_hp(-1),
m_yaw(0),
m_properties_sent(true),
m_armor_groups_sent(false),
m_animation_range(0,0),
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)
{
// 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::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 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),
m_registered(false),
m_velocity(0,0,0),
m_acceleration(0,0,0),
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_current_texture_modifier("")
{
// 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 (UNORDERED_SET<u32>::iterator it = m_attached_particle_spawners.begin();
it != m_attached_particle_spawners.end(); ++it) {
m_env->deleteParticleSpawner(*it, 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.c_str(), 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 != ""){
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);
}
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 (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 == 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);
// 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 (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 (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_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);
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_removed = true;
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::collideWithObjects() const
{
return m_prop.collideWithObjects;
}
/*
PlayerSAO
*/
// No prototype, PlayerSAO does not need to be deserialized
PlayerSAO::PlayerSAO(ServerEnvironment *env_, u16 peer_id_, bool is_singleplayer):
UnitSAO(env_, v3f(0,0,0)),
m_player(NULL),
m_peer_id(peer_id_),
m_inventory(NULL),
m_damage(0),
m_last_good_position(0,0,0),
m_time_from_last_teleport(0),
m_time_from_last_punch(0),
m_nocheat_dig_pos(32767, 32767, 32767),
m_nocheat_dig_time(0),
m_wield_index(0),
m_position_not_sent(false),
m_is_singleplayer(is_singleplayer),
m_breath(PLAYER_MAX_BREATH),
m_pitch(0),
m_fov(0),
m_wanted_range(0),
m_extended_attributes_modified(false),
// public
m_physics_override_speed(1),
m_physics_override_jump(1),
m_physics_override_gravity(1),
m_physics_override_sneak(true),
m_physics_override_sneak_glitch(true),
m_physics_override_sent(false)
{
assert(m_peer_id != 0); // pre-condition
m_prop.hp_max = PLAYER_MAX_HP;
m_prop.physical = false;
m_prop.weight = 75;
m_prop.collisionbox = aabb3f(-1/3.,-1.0,-1/3., 1/3.,1.0,1/3.);
// 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.push_back("player.png");
m_prop.textures.push_back("player_back.png");
m_prop.colors.clear();
m_prop.colors.push_back(video::SColor(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_hp = PLAYER_MAX_HP;
}
PlayerSAO::~PlayerSAO()
{
if(m_inventory != &m_player->inventory)
delete m_inventory;
}
void PlayerSAO::initialize(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->peer_id = 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();
for (UNORDERED_SET<u32>::iterator it = m_attached_particle_spawners.begin();
it != m_attached_particle_spawners.end(); ++it) {
m_env->deleteParticleSpawner(*it, false);
}
}
}
std::string PlayerSAO::getClientInitializationData(u16 protocol_version)
{
std::ostringstream os(std::ios::binary);
// Protocol >= 15
writeU8(os, 1); // version
os << serializeString(m_player->getName()); // name
writeU8(os, 1); // is_player
writeS16(os, getId()); //id
writeV3F1000(os, m_base_position + v3f(0,BS*1,0));
writeF1000(os, m_yaw);
writeS16(os, getHP());
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 (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
msg_os << serializeLongString(gob_cmd_update_physics_override(m_physics_override_speed,
m_physics_override_jump, m_physics_override_gravity, m_physics_override_sneak,
m_physics_override_sneak_glitch)); // 5
// (GENERIC_CMD_UPDATE_NAMETAG_ATTRIBUTES) : Deprecated, for backwards compatibility only.
msg_os << serializeLongString(gob_cmd_update_nametag_attributes(m_prop.nametag_color)); // 6
int message_count = 6 + m_bone_position.size();
for (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)));
}
}
writeU8(os, message_count);
os.write(msg_os.str().c_str(), msg_os.str().size());
// return result
return os.str();
}
void PlayerSAO::getStaticData(std::string *result) const
{
FATAL_ERROR("Deprecated function");
}
void PlayerSAO::step(float dtime, bool send_recommended)
{
if (m_drowning_interval.step(dtime, 2.0)) {
// get head position
v3s16 p = floatToInt(m_base_position + v3f(0, BS * 1.6, 0), BS);
MapNode n = m_env->getMap().getNodeNoEx(p);
const ContentFeatures &c = m_env->getGameDef()->ndef()->get(n);
// If node generates drown
if (c.drowning > 0 && m_hp > 0) {
if (m_breath > 0)
setBreath(m_breath - 1);
// No more breath, damage player
if (m_breath == 0) {
setHP(m_hp - c.drowning);
m_env->getGameDef()->SendPlayerHPOrDie(this);
}
}
}
if (m_breathing_interval.step(dtime, 0.5)) {
// get head position
v3s16 p = floatToInt(m_base_position + v3f(0, BS * 1.6, 0), BS);
MapNode n = m_env->getMap().getNodeNoEx(p);
const ContentFeatures &c = m_env->getGameDef()->ndef()->get(n);
// If player is alive & no drowning, breath
if (m_hp > 0 && m_breath < PLAYER_MAX_BREATH && c.drowning == 0)
setBreath(m_breath + 1);
}
if (m_node_hurt_interval.step(dtime, 1.0)) {
// Feet, middle and head
v3s16 p1 = floatToInt(m_base_position + v3f(0, BS*0.1, 0), BS);
MapNode n1 = m_env->getMap().getNodeNoEx(p1);
v3s16 p2 = floatToInt(m_base_position + v3f(0, BS*0.8, 0), BS);
MapNode n2 = m_env->getMap().getNodeNoEx(p2);
v3s16 p3 = floatToInt(m_base_position + v3f(0, BS*1.6, 0), BS);
MapNode n3 = m_env->getMap().getNodeNoEx(p3);
u32 damage_per_second = 0;
damage_per_second = MYMAX(damage_per_second,
m_env->getGameDef()->ndef()->get(n1).damage_per_second);
damage_per_second = MYMAX(damage_per_second,
m_env->getGameDef()->ndef()->get(n2).damage_per_second);
damage_per_second = MYMAX(damage_per_second,
m_env->getGameDef()->ndef()->get(n3).damage_per_second);
if (damage_per_second != 0 && m_hp > 0) {
s16 newhp = ((s32) damage_per_second > m_hp ? 0 : m_hp - damage_per_second);
setHP(newhp);
m_env->getGameDef()->SendPlayerHPOrDie(this);
}
}
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);
setBasePosition(m_last_good_position);
m_env->getGameDef()->SendMovePlayer(m_peer_id);
}
//dstream<<"PlayerSAO::step: dtime: "<<dtime<<std::endl;
// Set lag pool maximums based on estimated lag
const float LAG_POOL_MIN = 5.0;
float lag_pool_max = m_env->getMaxLagEstimate() * 2.0;
if(lag_pool_max < LAG_POOL_MIN)
lag_pool_max = LAG_POOL_MIN;
m_dig_pool.setMax(lag_pool_max);
m_move_pool.setMax(lag_pool_max);
// Increment cheat prevention timers
m_dig_pool.add(dtime);
m_move_pool.add(dtime);
m_time_from_last_teleport += dtime;