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vcmi/lib/JsonRandom.cpp
2023-07-05 15:48:08 +03:00

356 lines
9.9 KiB
C++

/*
* JsonRandom.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "JsonRandom.h"
#include <vstd/StringUtils.h>
#include "JsonNode.h"
#include "CRandomGenerator.h"
#include "StringConstants.h"
#include "VCMI_Lib.h"
#include "CModHandler.h"
#include "CArtHandler.h"
#include "CCreatureHandler.h"
#include "CCreatureSet.h"
#include "spells/CSpellHandler.h"
#include "CSkillHandler.h"
#include "IGameCallback.h"
#include "mapObjects/IObjectInterface.h"
VCMI_LIB_NAMESPACE_BEGIN
namespace JsonRandom
{
si32 loadValue(const JsonNode & value, CRandomGenerator & rng, si32 defaultValue)
{
if(value.isNull())
return defaultValue;
if(value.isNumber())
return static_cast<si32>(value.Float());
if(value.isVector())
{
const auto & vector = value.Vector();
size_t index= rng.getIntRange(0, vector.size()-1)();
return loadValue(vector[index], rng, 0);
}
if(value.isStruct())
{
if (!value["amount"].isNull())
return static_cast<si32>(loadValue(value["amount"], rng, defaultValue));
si32 min = static_cast<si32>(loadValue(value["min"], rng, 0));
si32 max = static_cast<si32>(loadValue(value["max"], rng, 0));
return rng.getIntRange(min, max)();
}
return defaultValue;
}
std::string loadKey(const JsonNode & value, CRandomGenerator & rng, const std::set<std::string> & valuesSet)
{
if(value.isString())
return value.String();
if(value.isStruct())
{
if(!value["type"].isNull())
return value["type"].String();
if(!value["anyOf"].isNull())
return RandomGeneratorUtil::nextItem(value["anyOf"].Vector(), rng)->String();
if(!value["noneOf"].isNull())
{
auto copyValuesSet = valuesSet;
for(auto & s : value["noneOf"].Vector())
copyValuesSet.erase(s.String());
if(!copyValuesSet.empty())
return *RandomGeneratorUtil::nextItem(copyValuesSet, rng);
}
}
return valuesSet.empty() ? "" : *RandomGeneratorUtil::nextItem(valuesSet, rng);
}
TResources loadResources(const JsonNode & value, CRandomGenerator & rng)
{
TResources ret;
if (value.isVector())
{
for (const auto & entry : value.Vector())
ret += loadResource(entry, rng);
return ret;
}
for (size_t i=0; i<GameConstants::RESOURCE_QUANTITY; i++)
{
ret[i] = loadValue(value[GameConstants::RESOURCE_NAMES[i]], rng);
}
return ret;
}
TResources loadResource(const JsonNode & value, CRandomGenerator & rng)
{
std::set<std::string> defaultResources(std::begin(GameConstants::RESOURCE_NAMES), std::end(GameConstants::RESOURCE_NAMES) - 1); //except mithril
std::string resourceName = loadKey(value, rng, defaultResources);
si32 resourceAmount = loadValue(value, rng, 0);
si32 resourceID(VLC->modh->identifiers.getIdentifier(value.meta, "resource", resourceName).value());
TResources ret;
ret[resourceID] = resourceAmount;
return ret;
}
std::vector<si32> loadPrimary(const JsonNode & value, CRandomGenerator & rng)
{
std::vector<si32> ret;
if(value.isStruct())
{
for(const auto & name : PrimarySkill::names)
{
ret.push_back(loadValue(value[name], rng));
}
}
if(value.isVector())
{
ret.resize(GameConstants::PRIMARY_SKILLS, 0);
std::set<std::string> defaultStats(std::begin(PrimarySkill::names), std::end(PrimarySkill::names));
for(const auto & element : value.Vector())
{
auto key = loadKey(element, rng, defaultStats);
defaultStats.erase(key);
int id = vstd::find_pos(PrimarySkill::names, key);
if(id != -1)
ret[id] += loadValue(element, rng);
}
}
return ret;
}
std::map<SecondarySkill, si32> loadSecondary(const JsonNode & value, CRandomGenerator & rng)
{
std::map<SecondarySkill, si32> ret;
if(value.isStruct())
{
for(const auto & pair : value.Struct())
{
SecondarySkill id(VLC->modh->identifiers.getIdentifier(pair.second.meta, "skill", pair.first).value());
ret[id] = loadValue(pair.second, rng);
}
}
if(value.isVector())
{
std::set<std::string> defaultSkills;
for(const auto & skill : VLC->skillh->objects)
{
IObjectInterface::cb->isAllowed(2, skill->getIndex());
auto scopeAndName = vstd::splitStringToPair(skill->getJsonKey(), ':');
if(scopeAndName.first == CModHandler::scopeBuiltin() || scopeAndName.first == value.meta)
defaultSkills.insert(scopeAndName.second);
else
defaultSkills.insert(skill->getJsonKey());
}
for(const auto & element : value.Vector())
{
auto key = loadKey(element, rng, defaultSkills);
defaultSkills.erase(key); //avoid dupicates
if(auto identifier = VLC->modh->identifiers.getIdentifier(CModHandler::scopeGame(), "skill", key))
{
SecondarySkill id(identifier.value());
ret[id] = loadValue(element, rng);
}
}
}
return ret;
}
ArtifactID loadArtifact(const JsonNode & value, CRandomGenerator & rng)
{
if (value.getType() == JsonNode::JsonType::DATA_STRING)
return ArtifactID(VLC->modh->identifiers.getIdentifier("artifact", value).value());
std::set<CArtifact::EartClass> allowedClasses;
std::set<ArtifactPosition> allowedPositions;
ui32 minValue = 0;
ui32 maxValue = std::numeric_limits<ui32>::max();
if (value["class"].getType() == JsonNode::JsonType::DATA_STRING)
allowedClasses.insert(CArtHandler::stringToClass(value["class"].String()));
else
for(const auto & entry : value["class"].Vector())
allowedClasses.insert(CArtHandler::stringToClass(entry.String()));
if (value["slot"].getType() == JsonNode::JsonType::DATA_STRING)
allowedPositions.insert(ArtifactPosition(value["class"].String()));
else
for(const auto & entry : value["slot"].Vector())
allowedPositions.insert(ArtifactPosition(entry.String()));
if (!value["minValue"].isNull()) minValue = static_cast<ui32>(value["minValue"].Float());
if (!value["maxValue"].isNull()) maxValue = static_cast<ui32>(value["maxValue"].Float());
return VLC->arth->pickRandomArtifact(rng, [=](const ArtifactID & artID) -> bool
{
CArtifact * art = VLC->arth->objects[artID];
if(!vstd::iswithin(art->getPrice(), minValue, maxValue))
return false;
if(!allowedClasses.empty() && !allowedClasses.count(art->aClass))
return false;
if(!IObjectInterface::cb->isAllowed(1, art->getIndex()))
return false;
if(!allowedPositions.empty())
{
for(const auto & pos : art->getPossibleSlots().at(ArtBearer::HERO))
{
if(allowedPositions.count(pos))
return true;
}
return false;
}
return true;
});
}
std::vector<ArtifactID> loadArtifacts(const JsonNode & value, CRandomGenerator & rng)
{
std::vector<ArtifactID> ret;
for (const JsonNode & entry : value.Vector())
{
ret.push_back(loadArtifact(entry, rng));
}
return ret;
}
SpellID loadSpell(const JsonNode & value, CRandomGenerator & rng, std::vector<SpellID> spells)
{
if (value.getType() == JsonNode::JsonType::DATA_STRING)
return SpellID(VLC->modh->identifiers.getIdentifier("spell", value).value());
if (!value["level"].isNull())
{
int32_t spellLevel = value["level"].Float();
vstd::erase_if(spells, [=](const SpellID & spell)
{
return VLC->spellh->getById(spell)->getLevel() != spellLevel;
});
}
if (!value["school"].isNull())
{
int32_t schoolID = VLC->modh->identifiers.getIdentifier("spellSchool", value["school"]).value();
vstd::erase_if(spells, [=](const SpellID & spell)
{
return !VLC->spellh->getById(spell)->hasSchool(ESpellSchool(schoolID));
});
}
if (spells.empty())
{
logMod->warn("Failed to select suitable random spell!");
return SpellID::NONE;
}
return SpellID(*RandomGeneratorUtil::nextItem(spells, rng));
}
std::vector<SpellID> loadSpells(const JsonNode & value, CRandomGenerator & rng, const std::vector<SpellID> & spells)
{
std::vector<SpellID> ret;
for (const JsonNode & entry : value.Vector())
{
ret.push_back(loadSpell(entry, rng, spells));
}
return ret;
}
CStackBasicDescriptor loadCreature(const JsonNode & value, CRandomGenerator & rng)
{
CStackBasicDescriptor stack;
stack.type = VLC->creh->objects[VLC->modh->identifiers.getIdentifier("creature", value["type"]).value()];
stack.count = loadValue(value, rng);
if (!value["upgradeChance"].isNull() && !stack.type->upgrades.empty())
{
if (int(value["upgradeChance"].Float()) > rng.nextInt(99)) // select random upgrade
{
stack.type = VLC->creh->objects[*RandomGeneratorUtil::nextItem(stack.type->upgrades, rng)];
}
}
return stack;
}
std::vector<CStackBasicDescriptor> loadCreatures(const JsonNode & value, CRandomGenerator & rng)
{
std::vector<CStackBasicDescriptor> ret;
for (const JsonNode & node : value.Vector())
{
ret.push_back(loadCreature(node, rng));
}
return ret;
}
std::vector<RandomStackInfo> evaluateCreatures(const JsonNode & value)
{
std::vector<RandomStackInfo> ret;
for (const JsonNode & node : value.Vector())
{
RandomStackInfo info;
if (!node["amount"].isNull())
info.minAmount = info.maxAmount = static_cast<si32>(node["amount"].Float());
else
{
info.minAmount = static_cast<si32>(node["min"].Float());
info.maxAmount = static_cast<si32>(node["max"].Float());
}
const CCreature * crea = VLC->creh->objects[VLC->modh->identifiers.getIdentifier("creature", node["type"]).value()];
info.allowedCreatures.push_back(crea);
if (node["upgradeChance"].Float() > 0)
{
for(const auto & creaID : crea->upgrades)
info.allowedCreatures.push_back(VLC->creh->objects[creaID]);
}
ret.push_back(info);
}
return ret;
}
//std::vector<Component> loadComponents(const JsonNode & value)
//{
// std::vector<Component> ret;
// return ret;
// //TODO
//}
std::vector<Bonus> DLL_LINKAGE loadBonuses(const JsonNode & value)
{
std::vector<Bonus> ret;
for (const JsonNode & entry : value.Vector())
{
if(auto bonus = JsonUtils::parseBonus(entry))
ret.push_back(*bonus);
}
return ret;
}
}
VCMI_LIB_NAMESPACE_END