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Don't apply player movement cheat detection in singleplayer

master
Perttu Ahola 2012-04-01 13:19:50 +03:00
parent 8ecfd88d92
commit 491287c0af
3 changed files with 55 additions and 46 deletions
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88
src/content_sao.cpp
View File

@ -748,7 +748,7 @@ void LuaEntitySAO::sendPosition(bool do_interpolate, bool is_movement_end)
// No prototype, PlayerSAO does not need to be deserialized
PlayerSAO::PlayerSAO(ServerEnvironment *env_, Player *player_, u16 peer_id_,
const std::set<std::string> &privs):
const std::set<std::string> &privs, bool is_singleplayer):
ServerActiveObject(env_, v3f(0,0,0)),
m_player(player_),
m_peer_id(peer_id_),
@ -761,6 +761,7 @@ PlayerSAO::PlayerSAO(ServerEnvironment *env_, Player *player_, u16 peer_id_,
m_armor_groups_sent(false),
m_properties_sent(true),
m_privs(privs),
m_is_singleplayer(is_singleplayer),
// public
m_teleported(false),
m_inventory_not_sent(false),
@ -865,51 +866,54 @@ void PlayerSAO::step(float dtime, bool send_recommended)
}
m_time_from_last_punch += dtime;
if(!m_is_singleplayer)
{
/*
Check player movements
/*
Check player movements
NOTE: Actually the server should handle player physics like the
client does and compare player's position to what is calculated
on our side. This is required when eg. players fly due to an
explosion.
*/
NOTE: Actually the server should handle player physics like the
client does and compare player's position to what is calculated
on our side. This is required when eg. players fly due to an
explosion.
*/
float player_max_speed = 0;
float player_max_speed_up = 0;
if(m_privs.count("fast") != 0){
// Fast speed
player_max_speed = BS * 20;
player_max_speed_up = BS * 20;
} else {
// Normal speed
player_max_speed = BS * 4.0;
player_max_speed_up = BS * 4.0;
}
// Tolerance
player_max_speed *= 2.5;
player_max_speed_up *= 2.5;
m_last_good_position_age += dtime;
if(m_last_good_position_age >= 1.0){
float age = m_last_good_position_age;
v3f diff = (m_player->getPosition() - m_last_good_position);
float d_vert = diff.Y;
diff.Y = 0;
float d_horiz = diff.getLength();
/*infostream<<m_player->getName()<<"'s horizontal speed is "
<<(d_horiz/age)<<std::endl;*/
if(d_horiz <= age * player_max_speed &&
(d_vert < 0 || d_vert < age * player_max_speed_up)){
m_last_good_position = m_player->getPosition();
float player_max_speed = 0;
float player_max_speed_up = 0;
if(m_privs.count("fast") != 0){
// Fast speed
player_max_speed = BS * 20;
player_max_speed_up = BS * 20;
} else {
actionstream<<"Player "<<m_player->getName()
<<" moved too fast; resetting position"
<<std::endl;
m_player->setPosition(m_last_good_position);
m_teleported = true;
// Normal speed
player_max_speed = BS * 4.0;
player_max_speed_up = BS * 4.0;
}
// Tolerance
player_max_speed *= 2.5;
player_max_speed_up *= 2.5;
m_last_good_position_age += dtime;
if(m_last_good_position_age >= 1.0){
float age = m_last_good_position_age;
v3f diff = (m_player->getPosition() - m_last_good_position);
float d_vert = diff.Y;
diff.Y = 0;
float d_horiz = diff.getLength();
/*infostream<<m_player->getName()<<"'s horizontal speed is "
<<(d_horiz/age)<<std::endl;*/
if(d_horiz <= age * player_max_speed &&
(d_vert < 0 || d_vert < age * player_max_speed_up)){
m_last_good_position = m_player->getPosition();
} else {
actionstream<<"Player "<<m_player->getName()
<<" moved too fast; resetting position"
<<std::endl;
m_player->setPosition(m_last_good_position);
m_teleported = true;
}
m_last_good_position_age = 0;
}
m_last_good_position_age = 0;
}
if(send_recommended == false)

7
src/content_sao.h
View File

@ -106,7 +106,7 @@ class PlayerSAO : public ServerActiveObject
{
public:
PlayerSAO(ServerEnvironment *env_, Player *player_, u16 peer_id_,
const std::set<std::string> &privs);
const std::set<std::string> &privs, bool is_singleplayer);
~PlayerSAO();
u8 getType() const
{ return ACTIVEOBJECT_TYPE_PLAYER; }
@ -183,9 +183,11 @@ public:
m_time_from_last_punch = 0.0;
return r;
}
void updatePrivileges(const std::set<std::string> &privs)
void updatePrivileges(const std::set<std::string> &privs,
bool is_singleplayer)
{
m_privs = privs;
m_is_singleplayer = is_singleplayer;
}
private:
@ -205,6 +207,7 @@ private:
struct ObjectProperties m_prop;
// Cached privileges for enforcement
std::set<std::string> m_privs;
bool m_is_singleplayer;
public:
// Some flags used by Server

6
src/server.cpp
View File

@ -4323,7 +4323,8 @@ void Server::reportPrivsModified(const std::string &name)
return;
SendPlayerPrivileges(player->peer_id);
player->getPlayerSAO()->updatePrivileges(
getPlayerEffectivePrivs(name));
getPlayerEffectivePrivs(name),
isSingleplayer());
}
}
@ -4527,7 +4528,8 @@ PlayerSAO* Server::emergePlayer(const char *name, u16 peer_id)
Create a new player active object
*/
PlayerSAO *playersao = new PlayerSAO(m_env, player, peer_id,
getPlayerEffectivePrivs(player->getName()));
getPlayerEffectivePrivs(player->getName()),
isSingleplayer());
/* Add object to environment */
m_env->addActiveObject(playersao);