4jcraft/Minecraft.World/WorldGen/Features/LightGemFeature.cpp

#include "../../Platform/stdafx.h"
#include "../../Headers/net.minecraft.world.level.h"
#include "../../Headers/net.minecraft.world.level.tile.h"
#include "LightGemFeature.h"

bool LightGemFeature::place(Level* level, Random* random, int x, int y, int z) {
    if (!level->isEmptyTile(x, y, z)) return false;
    if (level->getTile(x, y + 1, z) != Tile::netherRack_Id) return false;
    level->setTileAndData(x, y, z, Tile::glowstone_Id, 0, Tile::UPDATE_CLIENTS);

    for (int i = 0; i < 1500; i++) {
        int x2 = x + random->nextInt(8) - random->nextInt(8);
        int y2 = y - random->nextInt(12);
        int z2 = z + random->nextInt(8) - random->nextInt(8);
        if (level->getTile(x2, y2, z2) != 0) continue;

        int count = 0;
        for (int t = 0; t < 6; t++) {
            int tile = 0;
            if (t == 0) tile = level->getTile(x2 - 1, y2, z2);
            if (t == 1) tile = level->getTile(x2 + 1, y2, z2);
            if (t == 2) tile = level->getTile(x2, y2 - 1, z2);
            if (t == 3) tile = level->getTile(x2, y2 + 1, z2);
            if (t == 4) tile = level->getTile(x2, y2, z2 - 1);
            if (t == 5) tile = level->getTile(x2, y2, z2 + 1);

            if (tile == Tile::glowstone_Id) count++;
        }

        if (count == 1)
            level->setTileAndData(x2, y2, z2, Tile::glowstone_Id, 0,
                                  Tile::UPDATE_CLIENTS);
    }

    return true;
}