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Code Issues Releases Wiki Activity

Anticheat: Use the physics_override modifiers aswell

This commit is contained in:
SmallJoker 2016-09-09 07:03:36 +02:00 committed by kwolekr
parent 2de8c22a99
commit c0cd7aa351
1 changed files with 41 additions and 41 deletions
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82
src/content_sao.cpp
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@ -1326,52 +1326,52 @@ std::string PlayerSAO::getPropertyPacket()
bool PlayerSAO::checkMovementCheat()
{
bool cheated = false;
if(isAttached() || m_is_singleplayer ||
g_settings->getBool("disable_anticheat"))
{
if (isAttached() || m_is_singleplayer ||
g_settings->getBool("disable_anticheat")) {
m_last_good_position = m_player->getPosition();
return false;
}
else
{
/*
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. Altough a node-based alternative might be possible
too, and much more lightweight.
*/
bool cheated = false;
/*
Check player movements
float player_max_speed = 0;
if(m_privs.count("fast") != 0){
// Fast speed
player_max_speed = m_player->movement_speed_fast;
} else {
// Normal speed
player_max_speed = m_player->movement_speed_walk;
}
// Tolerance. With the lag pool we shouldn't need it.
//player_max_speed *= 2.5;
//player_max_speed_up *= 2.5;
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. Altough a node-based alternative might be possible
too, and much more lightweight.
*/
v3f diff = (m_player->getPosition() - m_last_good_position);
float d_vert = diff.Y;
diff.Y = 0;
float d_horiz = diff.getLength();
float required_time = d_horiz/player_max_speed;
if(d_vert > 0 && d_vert/player_max_speed > required_time)
required_time = d_vert/player_max_speed;
if(m_move_pool.grab(required_time)){
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);
cheated = true;
}
float player_max_speed = 0;
if (m_privs.count("fast") != 0) {
// Fast speed
player_max_speed = m_player->movement_speed_fast * m_physics_override_speed;
} else {
// Normal speed
player_max_speed = m_player->movement_speed_walk * m_physics_override_speed;
}
// Tolerance. The lag pool does this a bit.
//player_max_speed *= 2.5;
v3f diff = (m_player->getPosition() - m_last_good_position);
float d_vert = diff.Y;
diff.Y = 0;
float d_horiz = diff.getLength();
float required_time = d_horiz / player_max_speed;
if (d_vert > 0 && d_vert / player_max_speed > required_time)
required_time = d_vert / player_max_speed; // Moving upwards
if (m_move_pool.grab(required_time)) {
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);
cheated = true;
}
return cheated;
}