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

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

GroundBushFeature::GroundBushFeature(int trunkType, int leafType) {
    this->trunkTileType = trunkType;
    this->leafTileType = leafType;
}

bool GroundBushFeature::place(Level* level, Random* random, int x, int y,
                              int z) {
    PIXBeginNamedEvent(0, "Placing GroundBushFeature");
    int t = 0;
    while (((t = level->getTile(x, y, z)) == 0 || t == Tile::leaves_Id) &&
           y > 0)
        y--;

    int tile = level->getTile(x, y, z);
    if (tile == Tile::dirt_Id || tile == Tile::grass_Id) {
        y++;
        placeBlock(level, x, y, z, Tile::treeTrunk_Id, trunkTileType);

        for (int yy = y; yy <= y + 2; yy++) {
            int yo = yy - y;
            int offs = 2 - yo;
            for (int xx = x - offs; xx <= x + offs; xx++) {
                int xo = xx - (x);
                for (int zz = z - offs; zz <= z + offs; zz++) {
                    int zo = zz - (z);
                    if (abs(xo) == offs && abs(zo) == offs &&
                        random->nextInt(2) == 0)
                        continue;
                    if (!Tile::solid[level->getTile(xx, yy, zz)])
                        placeBlock(level, xx, yy, zz, Tile::leaves_Id,
                                   leafTileType);
                }
            }
        }
    }
    PIXEndNamedEvent();
    return true;
}