Question

目前正试图创造一种药水效果，一旦它耗尽时间，就会向玩家施加其他药水效果。看似简单但我发现了一些错误和错误试图完成这个，

直接尝试添加效果

    @Override
    public void performEffect(EntityLivingBase entity, int amplifier){
        if (entity instanceof EntityPlayer)
        {
            EntityPlayer player = (EntityPlayer)entity;
            if(player != null){
                if(player.getActivePotionEffect(PotionRegistry.effectBuzz) != null){
                int duraction = player.getActivePotionEffect(PotionRegistry.effectBuzz).getDuration();
                    if(duration <= 2){
                        player.addPotionEffect(new PotionEffect(MobEffects.WEAKNESS, 1200));
                    }
                }
            }
        }
    }

毋庸置疑，这会产生此错误

[16:10:04] [服务器线程/错误]：遇到意外的异常 net.minecraft.util.ReportedException：Ticking player 在net.minecraft.network.NetworkSystem.networkTick（NetworkSystem.java:212）〜[NetworkSystem.class：？] at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities（MinecraftServer.java:807）〜[MinecraftServer.class：？] 在net.minecraft.server.MinecraftServer.tick（MinecraftServer.java:688）〜[MinecraftServer.class：？] at net.minecraft.server.integrated.IntegratedServer.tick（IntegratedServer.java:156）〜[IntegratedServer.class：？] 在net.minecraft.server.MinecraftServer.run（MinecraftServer.java:537） [MinecraftServer.class：？] 在java.lang.Thread.run（未知来源）[？：1.8.0_161] 引起：java.util.ConcurrentModificationException at java.util.HashMap $ HashIterator.nextNode（Unknown Source）〜[？：1.8.0_161] at java.util.HashMap $ KeyIterator.next（Unknown Source）〜[？：1.8.0_161] at net.minecraft.entity.EntityLivingBase.updatePotionEffects（EntityLivingBase.java:650）〜[EntityLivingBase.class：？] at net.minecraft.entity.EntityLivingBase.onEntityUpdate（EntityLivingBase.java:383）〜[EntityLivingBase.class：？] 在net.minecraft.entity.Entity.onUpdate（Entity.java:436）〜[Entity.class：？] at net.minecraft.entity.EntityLivingBase.onUpdate（EntityLivingBase.java:2144）〜[EntityLivingBase.class：？] 在net.minecraft.entity.player.EntityPlayer.onUpdate（EntityPlayer.java:260）〜[EntityPlayer.class：？] at net.minecraft.entity.player.EntityPlayerMP.onUpdateEntity（EntityPlayerMP.java:345）〜[EntityPlayerMP.class：？] 在net.minecraft.network.NetHandlerPlayServer.update（NetHandlerPlayServer.java:174）〜[NetHandlerPlayServer.class：？] 在net.minecraftforge.fml.common.network.handshake.NetworkDispatcher $ 1.update（NetworkDispatcher.java:216）〜[NetworkDispatcher $ 1.class :?] 在net.minecraft.network.NetworkManager.processReceivedPackets（NetworkManager.java:309）〜[NetworkManager.class：？] 在net.minecraft.network.NetworkSystem.networkTick（NetworkSystem.java:197）〜[NetworkSystem.class：？] ......还有5个

好像我在勾选事件中运行它

在CommonProxy

中

MinecraftForge.EVENT_BUS.register(new EventManager());

然后对于EventManager本身

public class EventManager {

public static PotionEffect potion = new PotionEffect(MobEffects.WEAKNESS, 1200);
public static PotionEffect potion2 = new PotionEffect(MobEffects.HUNGER, 600);
public static PotionEffect potion3 = new PotionEffect(MobEffects.UNLUCK, 1200);

@SubscribeEvent
public void onTick(WorldTickEvent event){
    EntityPlayer player = Minecraft.getMinecraft().thePlayer;
    World world = Minecraft.getMinecraft().theWorld;
    if(player != null){
        boolean hasEffect = player.isPotionActive(PotionRegistry.effectBuzz);
        int applyIt = 0;

        if(hasEffect){
            applyIt = 1;
        } else if(!player.isPotionActive(potion.getPotion()) && applyIt == 1){
            applyIt = 2;
        } else {
            applyIt = 0;
        }

        if(player != null && applyIt == 2){
            player.addPotionEffect(potion);
        }
    }
}

}

这很有效，但效果是无限的。

Answer 1

当你的魔药效果被循环时，你正在执行你的动作。这类似于在迭代时修改数组。不要那样做。

此外，请勿执行药水效果客户端等操作。做客户端的唯一事情是图形和用户输入/输出。

必须在服务器上处理像药水这样的事情，否则服务器将覆盖您对下一个更新数据包的操作。

只需在ExtendPlayer实体中设置一个标志，然后onTick或玩家更新事件检查该标志是否存在，然后添加魔药。

@Override
public void performEffect(EntityLivingBase entity, int amplifier){
    if (entity instanceof EntityPlayer)
    {
        EntityPlayer player = (EntityPlayer)entity;
        if(player != null){
            if(player.getActivePotionEffect(PotionRegistry.effectBuzz) != null){
            int duraction = player.getActivePotionEffect(PotionRegistry.effectBuzz).getDuration();
                if(duration <= 2){
                    ExtendedPlayer ePlayer = ExtendedPlayer.get(player);
                    ePlayer.enableBuzz();
                }
            }
        }
    }
}

类似于您的扩展播放器

public class ExtendedPlayer implements IExtendedEntityProperties {

     ... Extended player setup here

     protected boolean startBuzz = false;

     public void enableBuzz() 
     {
          this.startBuzz = true;
     }
     public static final ExtendedPlayer get(EntityPlayer player) {
        return (ExtendedPlayer) player.getExtendedProperties("MuddymansExtendedPlayer");
    }

    public EntityPlayer getPlayer() {
        return this.player;
    }

    /**
    * Updates anything that needs to be updated each tick
    * NOT called automatically, so you must call it yourself from LivingUpdateEvent or a TickHandler
    */
    public void onUpdate() {
        if(!player.worldObj.isRemote) {
            if(this.enableBuzz) {
                Player player = this.getPlayer()
                player.addPotionEffect(new PotionEffect(MobEffects.WEAKNESS, 1200));
                player.addPotionEffect(new PotionEffect(MobEffects.HUNGER, 600));
                player.addPotionEffect(new PotionEffect(MobEffects.UNLUCK, 1200));
                this.startBuzz = false;
            }
        }
    } 
}

从事件处理程序

调用扩展的播放器更新事件

 @SubscribeEvent
 public void livingTick(final LivingUpdateEvent event) {
        if (event.entity != null && event.entity instanceof EntityPlayer) {
            if(!event.entity.isDead) {
                ExtendedPlayer.get((EntityPlayer)event.entity).onUpdate();
            }
        }

Minecraft从定制药水效果中添加新的药水效果

1 个答案: