From 5fbca239dd4da63fecd0634674d7e80e43e4e0b6 Mon Sep 17 00:00:00 2001 From: Marc Zinnschlag Date: Thu, 18 Oct 2012 14:02:06 +0200 Subject: [PATCH] Issue #61: potion creation (1st part; still missing some implementations) --- apps/openmw/mwmechanics/alchemy.cpp | 308 +++++++++++++++++++++++++++- apps/openmw/mwmechanics/alchemy.hpp | 62 +++++- components/esm/loadmgef.hpp | 2 + 3 files changed, 369 insertions(+), 3 deletions(-) diff --git a/apps/openmw/mwmechanics/alchemy.cpp b/apps/openmw/mwmechanics/alchemy.cpp index 6d3deed3c..c8a3cf162 100644 --- a/apps/openmw/mwmechanics/alchemy.cpp +++ b/apps/openmw/mwmechanics/alchemy.cpp @@ -1,15 +1,259 @@ #include "alchemy.hpp" +#include + #include #include +#include +#include +#include +#include + +#include + +#include "../mwbase/environment.hpp" +#include "../mwbase/world.hpp" + #include "../mwworld/containerstore.hpp" #include "../mwworld/class.hpp" +#include "../mwworld/cellstore.hpp" + +#include "magiceffects.hpp" +#include "creaturestats.hpp" +#include "npcstats.hpp" + +std::set MWMechanics::Alchemy::listEffects() const +{ + std::set effects; + + for (TIngredientsIterator iter (mIngredients.begin()); iter!=mIngredients.end(); ++iter) + { + if (!iter->isEmpty()) + { + const MWWorld::LiveCellRef *ingredient = iter->get(); + + for (int i=0; i<4; ++i) + if (ingredient->base->mData.mEffectID[i]!=-1) + effects.insert (EffectKey ( + ingredient->base->mData.mEffectID[i], ingredient->base->mData.mSkills[i]!=-1 ? + ingredient->base->mData.mSkills[i] : ingredient->base->mData.mAttributes[i])); + } + } + + return effects; +} + +void MWMechanics::Alchemy::filterEffects (std::set& effects) const +{ + std::set::iterator iter = effects.begin(); + + while (iter!=effects.end()) + { + bool remove = false; + + const EffectKey& key = *iter; + + { // dodge pointless g++ warning + for (TIngredientsIterator iter (mIngredients.begin()); iter!=mIngredients.end(); ++iter) + { + bool found = false; + + const MWWorld::LiveCellRef *ingredient = iter->get(); + + for (int i=0; i<4; ++i) + if (key.mId==ingredient->base->mData.mEffectID[i] && + (key.mArg==ingredient->base->mData.mSkills[i] || + key.mArg==ingredient->base->mData.mAttributes[i])) + { + found = true; + break; + } + + if (!found) + { + remove = true; + break; + } + } + } + + if (remove) + effects.erase (iter++); + else + ++iter; + } +} + +void MWMechanics::Alchemy::applyTools (int flags, float& value) const +{ + bool magnitude = !(flags & ESM::MagicEffect::NoMagnitude); + bool duration = !(flags & ESM::MagicEffect::NoDuration); + bool negative = flags & (ESM::MagicEffect::Negative | ESM::MagicEffect::Negative2); + + int tool = negative ? ESM::Apparatus::Retort : ESM::Apparatus::Albemic; + + int setup = 0; + + if (!mTools[tool].isEmpty() && !mTools[ESM::Apparatus::Calcinator].isEmpty()) + setup = 1; + else if (!mTools[tool].isEmpty()) + setup = 2; + else if (!mTools[ESM::Apparatus::Calcinator].isEmpty()) + setup = 3; + else + return; + + float toolQuality = setup==1 || setup==2 ? mTools[tool].get()->base->mData.mQuality : 0; + float calcinatorQuality = setup==1 || setup==3 ? + mTools[ESM::Apparatus::Calcinator].get()->base->mData.mQuality : 0; + + float quality = 1; + + switch (setup) + { + case 1: + + quality = negative ? 2 * toolQuality + 3 * calcinatorQuality : + (magnitude && duration ? + 2 * toolQuality + calcinatorQuality : 2/3.0 * (toolQuality + calcinatorQuality) + 0.5); + break; + + case 2: + + quality = negative ? 1+toolQuality : (magnitude && duration ? toolQuality : toolQuality + 0.5); + break; + + case 3: + + quality = magnitude && duration ? calcinatorQuality : calcinatorQuality + 0.5; + break; + } + + if (setup==3 || !negative) + { + value += quality; + } + else + { + if (quality==0) + throw std::runtime_error ("invalid derived alchemy apparatus quality"); + + value /= quality; + } +} + +void MWMechanics::Alchemy::updateEffects() +{ + mEffects.clear(); + + int ingredients = 0; + + for (TIngredientsIterator iter (beginIngredients()); iter!=endIngredients(); ++iter) + if (!iter->isEmpty()) + ++ingredients; + + if (ingredients<2 || mAlchemist.isEmpty() || mTools[ESM::Apparatus::MortarPestle].isEmpty()) + return; + + // find effects + std::set effects (listEffects()); + filterEffects (effects); + + // general alchemy factor + float x = getChance(); + + x *= mTools[ESM::Apparatus::MortarPestle].get()->base->mData.mQuality; + x *= MWBase::Environment::get().getWorld()->getStore().gameSettings.find ("fPotionStrengthMult")->getFloat(); + + // build quantified effect list + for (std::set::const_iterator iter (effects.begin()); iter!=effects.end(); ++iter) + { + const ESM::MagicEffect *magicEffect = + MWBase::Environment::get().getWorld()->getStore().magicEffects.find (iter->mId); + + if (magicEffect->mData.mBaseCost<=0) + throw std::runtime_error ("invalid base cost for magic effect " + iter->mId); + + float fPotionT1MagMul = + MWBase::Environment::get().getWorld()->getStore().gameSettings.find ("fPotionT1MagMul")->getFloat(); + + if (fPotionT1MagMul<=0) + throw std::runtime_error ("invalid gmst: fPotionT1MagMul"); + + float fPotionT1DurMult = + MWBase::Environment::get().getWorld()->getStore().gameSettings.find ("fPotionT1DurMult")->getFloat(); + + if (fPotionT1DurMult<=0) + throw std::runtime_error ("invalid gmst: fPotionT1DurMult"); + + float magnitude = magicEffect->mData.mFlags && ESM::MagicEffect::NoMagnitude ? + 1 : (x / fPotionT1MagMul) / magicEffect->mData.mBaseCost; + float duration = magicEffect->mData.mFlags && ESM::MagicEffect::NoDuration ? + 1 : (x / fPotionT1DurMult) / magicEffect->mData.mBaseCost; + + if (!(magicEffect->mData.mFlags && ESM::MagicEffect::NoMagnitude)) + applyTools (magicEffect->mData.mFlags, magnitude); + + if (!(magicEffect->mData.mFlags && ESM::MagicEffect::NoDuration)) + applyTools (magicEffect->mData.mFlags, duration); + + duration = static_cast (duration+0.5); + magnitude = static_cast (magnitude+0.5); + + if (magnitude>0 && duration>0) + { + ESM::ENAMstruct effect; + effect.mEffectID = iter->mId; + + effect.mSkill = effect.mAttribute = iter->mArg; // somewhat hack-ish, but should work + + effect.mRange = 0; + effect.mArea = 0; + + effect.mDuration = duration; + effect.mMagnMin = effect.mMagnMax = magnitude; + + mEffects.push_back (effect); + } + } +} + +const ESM::Potion *MWMechanics::Alchemy::getRecord() const +{ + +} + +void MWMechanics::Alchemy::removeIngredients() +{ + +} + +void MWMechanics::Alchemy::addPotion (const std::string& name) +{ + +} + +void MWMechanics::Alchemy::increaseSkill() +{ + +} + +float MWMechanics::Alchemy::getChance() const +{ + const CreatureStats& creatureStats = MWWorld::Class::get (mAlchemist).getCreatureStats (mAlchemist); + const NpcStats& npcStats = MWWorld::Class::get (mAlchemist).getNpcStats (mAlchemist); + + return + (npcStats.getSkill (ESM::Skill::Alchemy).getModified() + + 0.1 * creatureStats.getAttribute (1).getModified() + + 0.1 * creatureStats.getAttribute (7).getModified()); +} void MWMechanics::Alchemy::setAlchemist (const MWWorld::Ptr& npc) { - mNpc = npc; + mAlchemist = npc; mIngredients.resize (4); @@ -19,6 +263,8 @@ void MWMechanics::Alchemy::setAlchemist (const MWWorld::Ptr& npc) std::fill (mTools.begin(), mTools.end(), MWWorld::Ptr()); + mEffects.clear(); + MWWorld::ContainerStore& store = MWWorld::Class::get (npc).getContainerStore (npc); for (MWWorld::ContainerStoreIterator iter (store.begin (MWWorld::ContainerStore::Type_Apparatus)); @@ -61,9 +307,10 @@ MWMechanics::Alchemy::TIngredientsIterator MWMechanics::Alchemy::endIngredients( void MWMechanics::Alchemy::clear() { - mNpc = MWWorld::Ptr(); + mAlchemist = MWWorld::Ptr(); mTools.clear(); mIngredients.clear(); + mEffects.clear(); } int MWMechanics::Alchemy::addIngredient (const MWWorld::Ptr& ingredient) @@ -86,6 +333,8 @@ int MWMechanics::Alchemy::addIngredient (const MWWorld::Ptr& ingredient) return -1; mIngredients[slot] = ingredient; + + updateEffects(); return slot; } @@ -93,6 +342,61 @@ int MWMechanics::Alchemy::addIngredient (const MWWorld::Ptr& ingredient) void MWMechanics::Alchemy::removeIngredient (int index) { if (index>=0 && index (mIngredients.size())) + { mIngredients[index] = MWWorld::Ptr(); + updateEffects(); + } } +MWMechanics::Alchemy::TEffectsIterator MWMechanics::Alchemy::beginEffects() const +{ + return mEffects.begin(); +} + +MWMechanics::Alchemy::TEffectsIterator MWMechanics::Alchemy::endEffects() const +{ + return mEffects.end(); +} + +std::string MWMechanics::Alchemy::getPotionName() const +{ + if (const ESM::Potion *potion = getRecord()) + return potion->mName; + + return ""; +} + +MWMechanics::Alchemy::Result MWMechanics::Alchemy::create (const std::string& name) +{ + if (mTools[ESM::Apparatus::MortarPestle].isEmpty()) + return Result_NoMortarAndPestle; + + int ingredients = 0; + + for (TIngredientsIterator iter (beginIngredients()); iter!=endIngredients(); ++iter) + if (!iter->isEmpty()) + ++ingredients; + + if (ingredients<2) + return Result_LessThanTwoIngredients; + + if (name.empty() && getPotionName().empty()) + return Result_NoName; + + if (beginEffects()==endEffects()) + return Result_NoEffects; + + if (getChance() (RAND_MAX)*100) + { + removeIngredients(); + return Result_RandomFailure; + } + + addPotion (name); + + removeIngredients(); + + increaseSkill(); + + return Result_Success; +} diff --git a/apps/openmw/mwmechanics/alchemy.hpp b/apps/openmw/mwmechanics/alchemy.hpp index 7c3cf9e68..73fa7eb18 100644 --- a/apps/openmw/mwmechanics/alchemy.hpp +++ b/apps/openmw/mwmechanics/alchemy.hpp @@ -2,11 +2,16 @@ #define GAME_MWMECHANICS_ALCHEMY_H #include +#include + +#include #include "../mwworld/ptr.hpp" namespace MWMechanics { + struct EffectKey; + /// \brief Potion creation via alchemy skill class Alchemy { @@ -17,13 +22,54 @@ namespace MWMechanics typedef std::vector TIngredientsContainer; typedef TIngredientsContainer::const_iterator TIngredientsIterator; + + typedef std::vector TEffectsContainer; + typedef TEffectsContainer::const_iterator TEffectsIterator; + + enum Result + { + Result_Success, + + Result_NoMortarAndPestle, + Result_LessThanTwoIngredients, + Result_NoName, + Result_NoEffects, + Result_RandomFailure + }; private: - MWWorld::Ptr mNpc; + MWWorld::Ptr mAlchemist; TToolsContainer mTools; TIngredientsContainer mIngredients; + TEffectsContainer mEffects; + std::set listEffects() const; + ///< List all effects of all used ingredients. + + void filterEffects (std::set& effects) const; + ///< Filter out effects not shared by all ingredients. + + void applyTools (int flags, float& value) const; + + void updateEffects(); + + const ESM::Potion *getRecord() const; + ///< Return existing recrod for created potion (may return 0) + + void removeIngredients(); + ///< Remove selected ingredients from alchemist's inventory, cleanup selected ingredients and + /// update effect list accordingly. + + void addPotion (const std::string& name); + ///< Add a potion to the alchemist's inventory. + + void increaseSkill(); + ///< Increase alchemist's skill. + + float getChance() const; + ///< Return chance of success. + public: void setAlchemist (const MWWorld::Ptr& npc); @@ -49,6 +95,20 @@ namespace MWMechanics void removeIngredient (int index); ///< Remove ingredient from slot (calling this function on an empty slot is a no-op). + + TEffectsIterator beginEffects() const; + + TEffectsIterator endEffects() const; + + std::string getPotionName() const; + ///< Return the name of the potion that would be created when calling create (if a record for such + /// a potion already exists) or return an empty string. + + Result create (const std::string& name); + ///< Try to create a potion from the ingredients, place it in the inventory of the alchemist and + /// adjust the skills of the alchemist accordingly. + /// \param name must not be an empty string, unless there is already a potion record ( + /// getPotionName() does not return an empty string). }; } diff --git a/components/esm/loadmgef.hpp b/components/esm/loadmgef.hpp index 861f66be0..a763576c3 100644 --- a/components/esm/loadmgef.hpp +++ b/components/esm/loadmgef.hpp @@ -14,6 +14,8 @@ struct MagicEffect enum Flags { NoDuration = 0x4, + NoMagnitude = 0x8, + Negative2 = 0x10, SpellMaking = 0x0200, Enchanting = 0x0400, Negative = 0x0800 // A harmful effect. Will determine whether