import cn.nukkit.block.BlockMycelium; //导入依赖的package包/类
public MushroomIsland() {

        MushroomPopulator mushroomPopulator = new MushroomPopulator();
        mushroomPopulator.setBaseAmount(1);

        addPopulator(mushroomPopulator);
        setElevation(60, 70);
        temperature = 0.9f;
        rainfall = 1.0f;
        
        this.setGroundCover(new Block[]{
        new BlockMycelium(),
        new BlockDirt(),
        new BlockDirt(),
        new BlockDirt(),
        new BlockDirt()
        });
    }
 

import cn.nukkit.block.BlockMycelium; //导入依赖的package包/类
public MushroomIsland() {
    this.setGroundCover(new Block[]{new BlockMycelium(), new BlockDirt(), new BlockDirt(), new BlockDirt(), new BlockDirt()});

    MushroomPopulator mushroomPopulator = new MushroomPopulator();
    mushroomPopulator.setBaseAmount(1);

    addPopulator(mushroomPopulator);
    setElevation(60, 70);
    temperature = 0.9f;
    rainfall = 1.0f;
}