import cn.nukkit.event.player.PlayerFoodLevelChangeEvent; //导入依赖的package包/类
public void setLevel(int foodLevel, float saturationLevel) {
    if (foodLevel > 20) {
        foodLevel = 20;
    }

    if (foodLevel < 0) {
        foodLevel = 0;
    }

    if (foodLevel <= 6 && !(this.getLevel() <= 6)) {
        if (this.getPlayer().isSprinting()) {
            this.getPlayer().setSprinting(false);
        }
    }

    PlayerFoodLevelChangeEvent ev = new PlayerFoodLevelChangeEvent(this.getPlayer(), foodLevel, saturationLevel);
    this.getPlayer().getServer().getPluginManager().callEvent(ev);
    if (ev.isCancelled()) {
        this.sendFoodLevel(this.getLevel());
        return;
    }
    int foodLevel0 = ev.getFoodLevel();
    float fsl = ev.getFoodSaturationLevel();
    this.foodLevel = foodLevel;
    if (fsl != -1) {
        if (fsl > foodLevel) fsl = foodLevel;
        this.foodSaturationLevel = fsl;
    }
    this.foodLevel = foodLevel0;
    this.sendFoodLevel();
}
 

import cn.nukkit.event.player.PlayerFoodLevelChangeEvent; //导入依赖的package包/类
public void setFoodSaturationLevel(float fsl) {
    if (fsl > this.getLevel()) fsl = this.getLevel();
    if (fsl < 0) fsl = 0;
    PlayerFoodLevelChangeEvent ev = new PlayerFoodLevelChangeEvent(this.getPlayer(), this.getLevel(), fsl);
    this.getPlayer().getServer().getPluginManager().callEvent(ev);
    if (ev.isCancelled()) {
        return;
    }
    fsl = ev.getFoodSaturationLevel();
    this.foodSaturationLevel = fsl;
}
 

import cn.nukkit.event.player.PlayerFoodLevelChangeEvent; //导入依赖的package包/类
@EventHandler
public void onFoodLevelChange(PlayerFoodLevelChangeEvent event){
	event.setFoodLevel(20);
	event.setFoodSaturationLevel(20F);
}
 

import cn.nukkit.event.player.PlayerFoodLevelChangeEvent; //导入依赖的package包/类
@EventHandler
public void onFoodLevelChange(PlayerFoodLevelChangeEvent event){
	if(!this.manager.isAuthenticated(event.getPlayer())){
		event.setCancelled();
	}
}