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OpenMW/apps/openmw/mwmechanics/security.cpp
dteviot 3f28634d1f consolidate random number logic
Note, I suspect Rng::rollClosedProbability() is not needed.  The only difference between it and rollProbability() is that one time in 37k (on Windows), it will give an output of 1.0.
On some versions of Linux, the value of 1.0 will occur about 1 time in 4 billion.
2015-03-15 14:07:47 +13:00

114 lines
4.1 KiB
C++

#include "security.hpp"
#include <openengine/misc/rng.hpp>
#include "../mwworld/class.hpp"
#include "../mwworld/containerstore.hpp"
#include "../mwworld/esmstore.hpp"
#include "../mwbase/world.hpp"
#include "../mwbase/environment.hpp"
#include "../mwbase/windowmanager.hpp"
#include "../mwbase/mechanicsmanager.hpp"
#include "npcstats.hpp"
#include "creaturestats.hpp"
namespace MWMechanics
{
Security::Security(const MWWorld::Ptr &actor)
: mActor(actor)
{
CreatureStats& creatureStats = actor.getClass().getCreatureStats(actor);
NpcStats& npcStats = actor.getClass().getNpcStats(actor);
mAgility = static_cast<float>(creatureStats.getAttribute(ESM::Attribute::Agility).getModified());
mLuck = static_cast<float>(creatureStats.getAttribute(ESM::Attribute::Luck).getModified());
mSecuritySkill = static_cast<float>(npcStats.getSkill(ESM::Skill::Security).getModified());
mFatigueTerm = creatureStats.getFatigueTerm();
}
void Security::pickLock(const MWWorld::Ptr &lock, const MWWorld::Ptr &lockpick,
std::string& resultMessage, std::string& resultSound)
{
if (!(lock.getCellRef().getLockLevel() > 0)) //If it's unlocked back out immediately
return;
int lockStrength = lock.getCellRef().getLockLevel();
float pickQuality = lockpick.get<ESM::Lockpick>()->mBase->mData.mQuality;
float fPickLockMult = MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>().find("fPickLockMult")->getFloat();
float x = 0.2f * mAgility + 0.1f * mLuck + mSecuritySkill;
x *= pickQuality * mFatigueTerm;
x += fPickLockMult * lockStrength;
resultSound = "Open Lock Fail";
if (x <= 0)
resultMessage = "#{sLockImpossible}";
else
{
MWBase::Environment::get().getMechanicsManager()->objectOpened(mActor, lock);
if (OEngine::Misc::Rng::roll0to99() <= x)
{
lock.getClass().unlock(lock);
resultMessage = "#{sLockSuccess}";
resultSound = "Open Lock";
mActor.getClass().skillUsageSucceeded(mActor, ESM::Skill::Security, 1);
}
else
resultMessage = "#{sLockFail}";
}
int uses = lockpick.getClass().getItemHealth(lockpick);
--uses;
lockpick.getCellRef().setCharge(uses);
if (!uses)
lockpick.getContainerStore()->remove(lockpick, 1, mActor);
}
void Security::probeTrap(const MWWorld::Ptr &trap, const MWWorld::Ptr &probe,
std::string& resultMessage, std::string& resultSound)
{
if (trap.getCellRef().getTrap() == "")
return;
float probeQuality = probe.get<ESM::Probe>()->mBase->mData.mQuality;
const ESM::Spell* trapSpell = MWBase::Environment::get().getWorld()->getStore().get<ESM::Spell>().find(trap.getCellRef().getTrap());
int trapSpellPoints = trapSpell->mData.mCost;
float fTrapCostMult = MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>().find("fTrapCostMult")->getFloat();
float x = 0.2f * mAgility + 0.1f * mLuck + mSecuritySkill;
x += fTrapCostMult * trapSpellPoints;
x *= probeQuality * mFatigueTerm;
resultSound = "Disarm Trap Fail";
if (x <= 0)
resultMessage = "#{sTrapImpossible}";
else
{
MWBase::Environment::get().getMechanicsManager()->objectOpened(mActor, trap);
if (OEngine::Misc::Rng::roll0to99() <= x)
{
trap.getCellRef().setTrap("");
resultSound = "Disarm Trap";
resultMessage = "#{sTrapSuccess}";
mActor.getClass().skillUsageSucceeded(mActor, ESM::Skill::Security, 0);
}
else
resultMessage = "#{sTrapFail}";
}
int uses = probe.getClass().getItemHealth(probe);
--uses;
probe.getCellRef().setCharge(uses);
if (!uses)
probe.getContainerStore()->remove(probe, 1, mActor);
}
}