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70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
#include "pickpocket.hpp"
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#include "../mwworld/class.hpp"
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#include "../mwworld/esmstore.hpp"
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#include "../mwbase/world.hpp"
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#include "../mwbase/environment.hpp"
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#include "npcstats.hpp"
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namespace MWMechanics
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{
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Pickpocket::Pickpocket(const MWWorld::Ptr &thief, const MWWorld::Ptr &victim)
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: mThief(thief)
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, mVictim(victim)
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{
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}
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float Pickpocket::getChanceModifier(const MWWorld::Ptr &ptr, float add)
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{
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NpcStats& stats = ptr.getClass().getNpcStats(ptr);
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float agility = stats.getAttribute(ESM::Attribute::Agility).getModified();
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float luck = stats.getAttribute(ESM::Attribute::Luck).getModified();
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float sneak = ptr.getClass().getSkill(ptr, ESM::Skill::Sneak);
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return (add + 0.2 * agility + 0.1 * luck + sneak) * stats.getFatigueTerm();
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}
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bool Pickpocket::getDetected(float valueTerm)
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{
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float x = getChanceModifier(mThief);
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float y = getChanceModifier(mVictim, valueTerm);
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float t = 2*x - y;
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float pcSneak = mThief.getClass().getSkill(mThief, ESM::Skill::Sneak);
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int iPickMinChance = MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>()
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.find("iPickMinChance")->getInt();
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int iPickMaxChance = MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>()
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.find("iPickMaxChance")->getInt();
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int roll = std::rand()/ (static_cast<double> (RAND_MAX) + 1) * 100; // [0, 99]
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if (t < pcSneak / iPickMinChance)
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{
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return (roll > int(pcSneak / iPickMinChance));
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}
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else
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{
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t = std::min(float(iPickMaxChance), t);
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return (roll > int(t));
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}
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}
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bool Pickpocket::pick(MWWorld::Ptr item, int count)
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{
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float stackValue = item.getClass().getValue(item) * count;
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float fPickPocketMod = MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>()
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.find("fPickPocketMod")->getFloat();
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float valueTerm = 10 * fPickPocketMod * stackValue;
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return getDetected(valueTerm);
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}
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bool Pickpocket::finish()
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{
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return getDetected(0.f);
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}
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}
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