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

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

TallGrassFeature::TallGrassFeature(int tile, int type) {
    this->tile = tile;
    this->type = type;
}

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

    for (int i = 0; i < 128; i++) {
        int x2 = x + random->nextInt(8) - random->nextInt(8);
        int y2 = y + random->nextInt(4) - random->nextInt(4);
        int z2 = z + random->nextInt(8) - random->nextInt(8);
        if (level->isEmptyTile(x2, y2, z2)) {
            if (Tile::tiles[tile]->canSurvive(level, x2, y2, z2)) {
                level->setTileAndData(x2, y2, z2, tile, type,
                                      Tile::UPDATE_CLIENTS);
            }
        }
    }

    return true;
}