4jcraft/targets/minecraft/world/level/levelgen/structure/RandomScatteredLargeFeature.cpp

#include "minecraft/IGameServices.h"
#include "RandomScatteredLargeFeature.h"

#include <list>
#include <utility>

#include "app/common/GameRules/LevelGeneration/LevelGenerationOptions.h"
#include "app/linux/LinuxGame.h"
#include "ScatteredFeaturePieces.h"
#include "java/Class.h"
#include "java/Random.h"
#include "minecraft/util/Mth.h"
#include "minecraft/world/level/Level.h"
#include "minecraft/world/level/biome/Biome.h"
#include "minecraft/world/level/biome/BiomeSource.h"
#include "minecraft/world/level/levelgen/structure/StructurePiece.h"
#include "minecraft/world/level/levelgen/structure/StructureStart.h"

const std::string RandomScatteredLargeFeature::OPTION_SPACING = "distance";
std::vector<Biome*> RandomScatteredLargeFeature::allowedBiomes;

void RandomScatteredLargeFeature::staticCtor() {
    allowedBiomes.push_back(Biome::desert);
    allowedBiomes.push_back(Biome::desertHills);
    allowedBiomes.push_back(Biome::jungle);
    allowedBiomes.push_back(Biome::jungleHills);
    allowedBiomes.push_back(Biome::swampland);
}

void RandomScatteredLargeFeature::_init() {
    spacing = 32;
    minSeparation = 8;

    swamphutEnemies.push_back(new Biome::MobSpawnerData(eTYPE_WITCH, 1, 1, 1));
}

RandomScatteredLargeFeature::RandomScatteredLargeFeature() { _init(); }

RandomScatteredLargeFeature::RandomScatteredLargeFeature(
    std::unordered_map<std::string, std::string> options) {
    _init();

    for (auto it = options.begin(); it != options.end(); ++it) {
        if (it->first.compare(OPTION_SPACING) == 0) {
            spacing = Mth::getInt(it->second, spacing, minSeparation + 1);
        }
    }
}

std::string RandomScatteredLargeFeature::getFeatureName() { return "Temple"; }

bool RandomScatteredLargeFeature::isFeatureChunk(int x, int z,
                                                 bool bIsSuperflat) {
    int xx = x;
    int zz = z;
    if (x < 0) x -= spacing - 1;
    if (z < 0) z -= spacing - 1;

    int xCenterFeatureChunk = x / spacing;
    int zCenterFeatureChunk = z / spacing;
    Random* r =
        level->getRandomFor(xCenterFeatureChunk, zCenterFeatureChunk, 14357617);
    xCenterFeatureChunk *= spacing;
    zCenterFeatureChunk *= spacing;
    xCenterFeatureChunk += r->nextInt(spacing - minSeparation);
    zCenterFeatureChunk += r->nextInt(spacing - minSeparation);
    x = xx;
    z = zz;

    bool forcePlacement = false;
    LevelGenerationOptions* levelGenOptions = gameServices().getLevelGenerationOptions();
    if (levelGenOptions != nullptr) {
        forcePlacement =
            levelGenOptions->isFeatureChunk(x, z, eFeature_Temples);
    }

    if (forcePlacement ||
        (x == xCenterFeatureChunk && z == zCenterFeatureChunk)) {
        Biome* biome =
            level->getBiomeSource()->getBiome(x * 16 + 8, z * 16 + 8);
        for (auto it = allowedBiomes.begin(); it != allowedBiomes.end(); ++it) {
            Biome* a = *it;
            if (biome == a) {
                return true;
            }
        }
    }

    return false;
}

StructureStart* RandomScatteredLargeFeature::createStructureStart(int x,
                                                                  int z) {
    return new ScatteredFeatureStart(level, random, x, z);
}

RandomScatteredLargeFeature::ScatteredFeatureStart::ScatteredFeatureStart() {
    // for reflection
}

RandomScatteredLargeFeature::ScatteredFeatureStart::ScatteredFeatureStart(
    Level* level, Random* random, int chunkX, int chunkZ)
    : StructureStart(chunkX, chunkZ) {
    Biome* biome = level->getBiome(chunkX * 16 + 8, chunkZ * 16 + 8);
    if (biome == Biome::jungle || biome == Biome::jungleHills) {
        ScatteredFeaturePieces::JunglePyramidPiece* startRoom =
            new ScatteredFeaturePieces::JunglePyramidPiece(random, chunkX * 16,
                                                           chunkZ * 16);
        pieces.push_back(startRoom);
    } else if (biome == Biome::swampland) {
        ScatteredFeaturePieces::SwamplandHut* startRoom =
            new ScatteredFeaturePieces::SwamplandHut(random, chunkX * 16,
                                                     chunkZ * 16);
        pieces.push_back(startRoom);
    } else {
        ScatteredFeaturePieces::DesertPyramidPiece* startRoom =
            new ScatteredFeaturePieces::DesertPyramidPiece(random, chunkX * 16,
                                                           chunkZ * 16);
        pieces.push_back(startRoom);
    }

    calculateBoundingBox();
}

bool RandomScatteredLargeFeature::isSwamphut(int cellX, int cellY, int cellZ) {
    StructureStart* structureAt = getStructureAt(cellX, cellY, cellZ);
    if (structureAt == nullptr ||
        !(dynamic_cast<ScatteredFeatureStart*>(structureAt)) ||
        structureAt->pieces.empty()) {
        return false;
    }
    StructurePiece* first = nullptr;
    auto it = structureAt->pieces.begin();
    if (it != structureAt->pieces.end()) first = *it;
    return dynamic_cast<ScatteredFeaturePieces::SwamplandHut*>(first) !=
           nullptr;
}

std::vector<Biome::MobSpawnerData*>*
RandomScatteredLargeFeature::getSwamphutEnemies() {
    return &swamphutEnemies;
}