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vcmi/lib/RMG/CMapGenerator.cpp
2013-03-03 17:06:03 +00:00

406 lines
12 KiB
C++

#include "StdInc.h"
#include "CMapGenerator.h"
#include "../Mapping/CMap.h"
#include "../VCMI_Lib.h"
#include "../CGeneralTextHandler.h"
#include "../Mapping/CMapEditManager.h"
#include "../CObjectHandler.h"
#include "../CDefObjInfoHandler.h"
#include "../GameConstants.h"
#include "../CTownHandler.h"
#include "../StringConstants.h"
CMapGenerator::CMapGenerator(const CMapGenOptions & mapGenOptions, const std::map<PlayerColor, CPlayerSettings> & players, int randomSeed) :
mapGenOptions(mapGenOptions), randomSeed(randomSeed), players(players)
{
gen.seed(randomSeed);
validateOptions();
}
CMapGenerator::~CMapGenerator()
{
}
std::unique_ptr<CMap> CMapGenerator::generate()
{
finalizeMapGenOptions();
//TODO select a template based on the map gen options or adapt it if necessary
map = make_unique<CMap>();
addHeaderInfo();
terViewPatternConfig = make_unique<CTerrainViewPatternConfig>();
mapMgr = make_unique<CMapEditManager>(terViewPatternConfig.get(), map.get(), randomSeed);
genTerrain();
genTowns();
return std::move(map);
}
void CMapGenerator::validateOptions() const
{
int playersCnt = 0;
int compOnlyPlayersCnt = 0;
BOOST_FOREACH(const auto & pair, players)
{
if(pair.second.getPlayerType() == CPlayerSettings::COMP_ONLY)
{
++compOnlyPlayersCnt;
}
else
{
++playersCnt;
}
}
if(mapGenOptions.getPlayersCnt() == CMapGenOptions::RANDOM_SIZE)
{
if(playersCnt != PlayerColor::PLAYER_LIMIT_I)
{
throw std::runtime_error(std::string("If the count of players is random size, ")
+ "the count of the items in the players map should equal PlayerColor::PLAYER_LIMIT.");
}
if(playersCnt == mapGenOptions.getPlayersCnt())
{
throw std::runtime_error(std::string("If the count of players is random size, ")
+ "all items in the players map should be either of player type AI or HUMAN.");
}
}
else
{
if(mapGenOptions.getCompOnlyPlayersCnt() != CMapGenOptions::RANDOM_SIZE)
{
if(playersCnt != mapGenOptions.getPlayersCnt() || compOnlyPlayersCnt != mapGenOptions.getCompOnlyPlayersCnt())
{
throw std::runtime_error(std::string("The count of players and computer only players in the players map ")
+ "doesn't conform with the specified map gen options.");
}
}
else
{
if(playersCnt != mapGenOptions.getPlayersCnt() || (playersCnt == mapGenOptions.getPlayersCnt()
&& compOnlyPlayersCnt != PlayerColor::PLAYER_LIMIT_I - playersCnt))
{
throw std::runtime_error(std::string("If the count of players is fixed and the count of comp only players random, ")
+ "the items in the players map should equal PlayerColor::PLAYER_LIMIT.");
}
}
}
if(countHumanPlayers() < 1)
{
throw std::runtime_error("1 human player is required at least");
}
BOOST_FOREACH(const auto & pair, players)
{
if(pair.first != pair.second.getColor())
{
throw std::runtime_error("The color of an item in player settings and the key of it has to be the same.");
}
}
}
void CMapGenerator::finalizeMapGenOptions()
{
if(mapGenOptions.getPlayersCnt() == CMapGenOptions::RANDOM_SIZE)
{
mapGenOptions.setPlayersCnt(gen.getInteger(countHumanPlayers(), PlayerColor::PLAYER_LIMIT_I));
// Remove AI players only from the end of the players map if necessary
for(auto itrev = players.end(); itrev != players.begin();)
{
auto it = itrev;
--it;
if(players.size() == mapGenOptions.getPlayersCnt())
{
break;
}
const CPlayerSettings & pSettings = it->second;
if(pSettings.getPlayerType() == CPlayerSettings::AI)
{
players.erase(it);
}
else
{
--itrev;
}
}
}
if(mapGenOptions.getTeamsCnt() == CMapGenOptions::RANDOM_SIZE)
{
mapGenOptions.setTeamsCnt(gen.getInteger(0, mapGenOptions.getPlayersCnt() - 1));
}
if(mapGenOptions.getCompOnlyPlayersCnt() == CMapGenOptions::RANDOM_SIZE)
{
mapGenOptions.setCompOnlyPlayersCnt(gen.getInteger(0, 8 - mapGenOptions.getPlayersCnt()));
int totalPlayersCnt = mapGenOptions.getPlayersCnt() + mapGenOptions.getCompOnlyPlayersCnt();
// Remove comp only players only from the end of the players map if necessary
for(auto itrev = players.end(); itrev != players.begin();)
{
auto it = itrev;
--it;
if(players.size() <= totalPlayersCnt)
{
break;
}
const CPlayerSettings & pSettings = it->second;
if(pSettings.getPlayerType() == CPlayerSettings::COMP_ONLY)
{
players.erase(it);
}
else
{
--itrev;
}
}
// Add some comp only players if necessary
int compOnlyPlayersToAdd = totalPlayersCnt - players.size();
for(int i = 0; i < compOnlyPlayersToAdd; ++i)
{
CPlayerSettings pSettings;
pSettings.setPlayerType(CPlayerSettings::COMP_ONLY);
pSettings.setColor(getNextPlayerColor());
players[pSettings.getColor()] = pSettings;
}
}
if(mapGenOptions.getCompOnlyTeamsCnt() == CMapGenOptions::RANDOM_SIZE)
{
mapGenOptions.setCompOnlyTeamsCnt(gen.getInteger(0, std::max(mapGenOptions.getCompOnlyPlayersCnt() - 1, 0)));
}
// There should be at least 2 players (1-player-maps aren't allowed)
if(mapGenOptions.getPlayersCnt() + mapGenOptions.getCompOnlyPlayersCnt() < 2)
{
CPlayerSettings pSettings;
pSettings.setPlayerType(CPlayerSettings::AI);
pSettings.setColor(getNextPlayerColor());
players[pSettings.getColor()] = pSettings;
mapGenOptions.setPlayersCnt(2);
}
// 1 team isn't allowed
if(mapGenOptions.getTeamsCnt() == 1 && mapGenOptions.getCompOnlyPlayersCnt() == 0)
{
mapGenOptions.setTeamsCnt(0);
}
if(mapGenOptions.getWaterContent() == EWaterContent::RANDOM)
{
mapGenOptions.setWaterContent(static_cast<EWaterContent::EWaterContent>(gen.getInteger(0, 2)));
}
if(mapGenOptions.getMonsterStrength() == EMonsterStrength::RANDOM)
{
mapGenOptions.setMonsterStrength(static_cast<EMonsterStrength::EMonsterStrength>(gen.getInteger(0, 2)));
}
}
std::string CMapGenerator::getMapDescription() const
{
const std::string waterContentStr[3] = { "none", "normal", "islands" };
const std::string monsterStrengthStr[3] = { "weak", "normal", "strong" };
std::stringstream ss;
ss << "Map created by the Random Map Generator.\nTemplate was <MOCK>, ";
ss << "Random seed was " << randomSeed << ", size " << map->width << "x";
ss << map->height << ", levels " << (map->twoLevel ? "2" : "1") << ", ";
ss << "humans " << static_cast<int>(mapGenOptions.getPlayersCnt()) << ", computers ";
ss << static_cast<int>(mapGenOptions.getCompOnlyPlayersCnt()) << ", water " << waterContentStr[mapGenOptions.getWaterContent()];
ss << ", monster " << monsterStrengthStr[mapGenOptions.getMonsterStrength()] << ", second expansion map";
BOOST_FOREACH(const auto & pair, players)
{
const CPlayerSettings & pSettings = pair.second;
if(pSettings.getPlayerType() == CPlayerSettings::HUMAN)
{
ss << ", " << GameConstants::PLAYER_COLOR_NAMES[pSettings.getColor().getNum()] << " is human";
}
if(pSettings.getStartingTown() != CPlayerSettings::RANDOM_TOWN)
{
ss << ", " << GameConstants::PLAYER_COLOR_NAMES[pSettings.getColor().getNum()]
<< " town choice is " << ETownType::names[pSettings.getStartingTown()];
}
}
return ss.str();
}
void CMapGenerator::addPlayerInfo()
{
// Calculate which team numbers exist
std::array<std::list<int>, 2> teamNumbers; // 0= cpu/human, 1= cpu only
int teamOffset = 0;
for(int i = 0; i < 2; ++i)
{
int playersCnt = i == 0 ? mapGenOptions.getPlayersCnt() : mapGenOptions.getCompOnlyPlayersCnt();
int teamsCnt = i == 0 ? mapGenOptions.getTeamsCnt() : mapGenOptions.getCompOnlyTeamsCnt();
if(playersCnt == 0)
{
continue;
}
int playersPerTeam = playersCnt /
(teamsCnt == 0 ? playersCnt : teamsCnt);
int teamsCntNorm = teamsCnt;
if(teamsCntNorm == 0)
{
teamsCntNorm = playersCnt;
}
for(int j = 0; j < teamsCntNorm; ++j)
{
for(int k = 0; k < playersPerTeam; ++k)
{
teamNumbers[i].push_back(j + teamOffset);
}
}
for(int j = 0; j < playersCnt - teamsCntNorm * playersPerTeam; ++j)
{
teamNumbers[i].push_back(j + teamOffset);
}
teamOffset += teamsCntNorm;
}
// Team numbers are assigned randomly to every player
BOOST_FOREACH(const auto & pair, players)
{
const CPlayerSettings & pSettings = pair.second;
PlayerInfo player;
player.canComputerPlay = true;
int j = pSettings.getPlayerType() == CPlayerSettings::COMP_ONLY ? 1 : 0;
if(j == 0)
{
player.canHumanPlay = true;
}
auto itTeam = std::next(teamNumbers[j].begin(), gen.getInteger(0, teamNumbers[j].size() - 1));
player.team = TeamID(*itTeam);
teamNumbers[j].erase(itTeam);
map->players[pSettings.getColor().getNum()] = player;
}
map->howManyTeams = (mapGenOptions.getTeamsCnt() == 0 ? mapGenOptions.getPlayersCnt() : mapGenOptions.getTeamsCnt())
+ (mapGenOptions.getCompOnlyTeamsCnt() == 0 ? mapGenOptions.getCompOnlyPlayersCnt() : mapGenOptions.getCompOnlyTeamsCnt());
}
int CMapGenerator::countHumanPlayers() const
{
return static_cast<int>(boost::count_if(players, [](const std::pair<PlayerColor, CPlayerSettings> & pair)
{
return pair.second.getPlayerType() == CMapGenerator::CPlayerSettings::HUMAN;
}));
}
void CMapGenerator::genTerrain()
{
map->initTerrain(); //FIXME nicer solution
mapMgr->clearTerrain();
mapMgr->drawTerrain(ETerrainType::GRASS, 10, 10, 20, 30, false);
}
void CMapGenerator::genTowns()
{
//FIXME mock gen
const int3 townPos[2] = { int3(17, 13, 0), int3(25,13, 0) };
const TFaction townTypes[2] = { ETownType::CASTLE, ETownType::DUNGEON };
for(auto it = players.begin(); it != players.end(); ++it)
{
PlayerColor owner = it->first;
int pos = std::distance(players.begin(), it);
int side = pos % 2;
CGTownInstance * town = new CGTownInstance();
town->ID = Obj::TOWN;
town->subID = townTypes[side];
town->tempOwner = owner;
town->defInfo = VLC->dobjinfo->gobjs[town->ID][town->subID];
town->builtBuildings.insert(BuildingID::FORT);
town->builtBuildings.insert(BuildingID::DEFAULT);
mapMgr->insertObject(town, townPos[side].x, townPos[side].y + (pos / 2) * 5, false);
// Update player info
PlayerInfo & pInfo = map->players[owner.getNum()];
pInfo.allowedFactions.clear();
pInfo.allowedFactions.insert(townTypes[side]);
pInfo.hasMainTown = true;
pInfo.posOfMainTown = town->pos - int3(2, 0, 0);
pInfo.generateHeroAtMainTown = true;
}
}
void CMapGenerator::addHeaderInfo()
{
map->version = EMapFormat::SOD;
map->width = mapGenOptions.getWidth();
map->height = mapGenOptions.getHeight();
map->twoLevel = mapGenOptions.getHasTwoLevels();
map->name = VLC->generaltexth->allTexts[740];
map->description = getMapDescription();
map->difficulty = 1;
addPlayerInfo();
}
PlayerColor CMapGenerator::getNextPlayerColor() const
{
for(PlayerColor i = PlayerColor(0); i < PlayerColor::PLAYER_LIMIT; i.advance(1))
{
if(!players.count(i))
{
return i;
}
}
throw std::runtime_error("Shouldn't happen. No free player color exists.");
}
CMapGenerator::CPlayerSettings::CPlayerSettings() : color(0), startingTown(RANDOM_TOWN), playerType(AI)
{
}
PlayerColor CMapGenerator::CPlayerSettings::getColor() const
{
return color;
}
void CMapGenerator::CPlayerSettings::setColor(PlayerColor value)
{
if(value >= PlayerColor(0) && value < PlayerColor::PLAYER_LIMIT)
{
color = value;
}
else
{
throw std::runtime_error("The color of the player is not in a valid range.");
}
}
int CMapGenerator::CPlayerSettings::getStartingTown() const
{
return startingTown;
}
void CMapGenerator::CPlayerSettings::setStartingTown(int value)
{
if(value >= -1 && value < static_cast<int>(VLC->townh->towns.size()))
{
startingTown = value;
}
else
{
throw std::runtime_error("The starting town of the player is not in a valid range.");
}
}
CMapGenerator::CPlayerSettings::EPlayerType CMapGenerator::CPlayerSettings::getPlayerType() const
{
return playerType;
}
void CMapGenerator::CPlayerSettings::setPlayerType(EPlayerType value)
{
playerType = value;
}