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Partial damage cheat fix: node damages server side (#4981)

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* Damage cheat fix: server side

* Lava/Node damages overtime server side
* lava hurt interval is only for old protocol
This commit is contained in:
Loïc Blot 2017-04-15 09:25:43 +02:00 committed by GitHub
parent b1e6c2a9b8
commit a9aad4d061
3 changed files with 48 additions and 29 deletions
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20
src/clientenvironment.cpp
View File

@ -252,19 +252,17 @@ void ClientEnvironment::step(float dtime)
m_script->environment_step(dtime); m_script->environment_step(dtime);
} }
/* // Protocol v29 make this behaviour obsolete
A quick draft of lava damage if (getGameDef()->getProtoVersion() < 29) {
*/ if (m_lava_hurt_interval.step(dtime, 1.0)) {
if(m_lava_hurt_interval.step(dtime, 1.0))
{
v3f pf = lplayer->getPosition(); v3f pf = lplayer->getPosition();
// Feet, middle and head // Feet, middle and head
v3s16 p1 = floatToInt(pf + v3f(0, BS*0.1, 0), BS); v3s16 p1 = floatToInt(pf + v3f(0, BS * 0.1, 0), BS);
MapNode n1 = m_map->getNodeNoEx(p1); MapNode n1 = m_map->getNodeNoEx(p1);
v3s16 p2 = floatToInt(pf + v3f(0, BS*0.8, 0), BS); v3s16 p2 = floatToInt(pf + v3f(0, BS * 0.8, 0), BS);
MapNode n2 = m_map->getNodeNoEx(p2); MapNode n2 = m_map->getNodeNoEx(p2);
v3s16 p3 = floatToInt(pf + v3f(0, BS*1.6, 0), BS); v3s16 p3 = floatToInt(pf + v3f(0, BS * 1.6, 0), BS);
MapNode n3 = m_map->getNodeNoEx(p3); MapNode n3 = m_map->getNodeNoEx(p3);
u32 damage_per_second = 0; u32 damage_per_second = 0;
@ -275,14 +273,10 @@ void ClientEnvironment::step(float dtime)
damage_per_second = MYMAX(damage_per_second, damage_per_second = MYMAX(damage_per_second,
m_client->ndef()->get(n3).damage_per_second); m_client->ndef()->get(n3).damage_per_second);
if(damage_per_second != 0) if (damage_per_second != 0)
{
damageLocalPlayer(damage_per_second, true); damageLocalPlayer(damage_per_second, true);
} }
}
// Protocol v29 make this behaviour obsolete
if (getGameDef()->getProtoVersion() < 29) {
/* /*
Drowning Drowning
*/ */

24
src/content_sao.cpp
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@ -941,6 +941,30 @@ void PlayerSAO::step(float dtime, bool send_recommended)
setBreath(m_breath + 1); 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) { if (!m_properties_sent) {
m_properties_sent = true; m_properties_sent = true;
std::string str = getPropertyPacket(); std::string str = getPropertyPacket();

1
src/content_sao.h
View File

@ -375,6 +375,7 @@ private:
// Timers // Timers
IntervalLimiter m_breathing_interval; IntervalLimiter m_breathing_interval;
IntervalLimiter m_drowning_interval; IntervalLimiter m_drowning_interval;
IntervalLimiter m_node_hurt_interval;
int m_wield_index; int m_wield_index;
bool m_position_not_sent; bool m_position_not_sent;