fix(invulnerable): 无敌模式不再被创造模式玩家绕过, 默认值改回开启 (#69)

#67 无敌模式对创造模式玩家无效:
- 原版 Entity#isInvulnerableTo() 的条件含 !source.isCreativePlayer(), 创造模式攻击被显式放行
- 因此只 setInvulnerable(true) 挡不住创造模式玩家, 管理员在创造模式下测试即「无敌无效」
- PlayerListener 新增 EntityDamageEvent 监听: 无敌假人 + 直接造成伤害的创造模式玩家 -> 取消事件
- 虚空 / /kill 等原版就该绕过无敌的来源不受影响

#68 默认值与文档不符:
- Feature.invulnerable 默认选项 false -> true
- config.yml default-features.invulnerable false -> true, version 24 -> 25
- README 一直写「假人默认开启无敌模式」, 现让行为与文档一致

本地实机验证 (Purpur 26.3): 无该配置键时生成即 Invulnerable:1b; 创造模式攻击被挡;
/kill 仍生效; 控制台 /damage 被挡。

Co-authored-by: EndlessPixel <EndlessPixel@users.noreply.github.com>

Author: EndlessPixel

CHANGELOG.md

@@ -10,6 +10,18 @@ Changelog for FakePlayer CE. Version `fp.buildN` matches the git tag / GitHub Re
 
 ## fp.build14 - (Not published | 未发布)
 
+## fp.build14 - (Not published | 未发布)
+
+### English
+
+- **Invincible mode now really blocks damage.** A fake player with `invulnerable` enabled could still be hurt by players in **creative mode**: vanilla explicitly lets creative attackers bypass invulnerability, so admins testing in creative saw the fake take damage even though the feature was on (`/fp config` showed `true`, and the entity flag was set correctly). Damage dealt by a creative-mode attacker to an invulnerable fake player is now cancelled; sources that are supposed to bypass invulnerability (the void, `/kill`) still work (#67).
+- **`invulnerable` is enabled by default again**, matching the documentation ("fake players spawn with invincible mode enabled by default"). It had silently defaulted to disabled since an upstream commit, which the changelog never recorded. `config.yml` bumped to 25 (#68).
+
+### 中文
+
+- **无敌模式现在真的免伤。** 开启 `invulnerable` 的假人此前仍会被**创造模式**玩家打伤：原版对创造模式攻击显式放行无敌判定，导致管理员在创造模式下测试时看到假人掉血——尽管特性确实开着（`/fp config` 显示 `true`，实体标记也已正确设置）。现在创造模式玩家对无敌假人造成的伤害会被取消；原版本就该绕过无敌的来源（虚空、`/kill`）仍然可用（#67）。
+- **`invulnerable` 默认值改回开启**，与文档「假人默认开启无敌模式」一致。此前默认关闭是上游某次提交悄悄改的，更新日志从未记录过。`config.yml` 版本提升至 25（#68）。
+
 ## fp.build13 - 2026-10-03
 
 ### English

fakeplayer-core/src/main/java/io/github/hello09x/fakeplayer/core/listener/PlayerListener.java

@@ -3,10 +3,12 @@
 import com.google.inject.Inject;
 import com.google.inject.Singleton;
 import io.github.hello09x.fakeplayer.core.manager.FakeplayerManager;
+import org.bukkit.GameMode;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
+import org.bukkit.event.entity.EntityDamageEvent;
 import org.bukkit.event.player.PlayerToggleSneakEvent;
 import org.jetbrains.annotations.NotNull;
 
@@ -41,4 +43,27 @@ public void onSneak(@NotNull PlayerToggleSneakEvent event) {
         }
     }
 
+    /**
+     * 无敌模式: 开启无敌的假人不应受到伤害, 包括创造模式玩家的攻击。
+     * <p>原版 {@code Entity#isInvulnerableTo()} 的条件里带 {@code !source.isCreativePlayer()},
+     * 即**创造模式玩家的攻击被显式放行** (方便在创造模式下打无敌实体)。因此只靠
+     * {@link Player#setInvulnerable(boolean)} 的话, 管理员在创造模式下打假人依然会掉血,
+     * 看起来就是「无敌模式无效」(实体标记其实已经设上了)。</p>
+     * <p>这里只拦「直接造成伤害的创造模式玩家」; 原版本就该绕过无敌的来源
+     * (虚空、{@code /kill} 等) 不受影响。</p>
+     */
+    @EventHandler(ignoreCancelled = true, priority = EventPriority.LOWEST)
+    public void onInvulnerableFakeDamaged(@NotNull EntityDamageEvent event) {
+        if (!(event.getEntity() instanceof Player victim)
+                || !victim.isInvulnerable()
+                || !manager.isFake(victim)) {
+            return;
+        }
+
+        if (event.getDamageSource().getDirectEntity() instanceof Player damager
+                && damager.getGameMode() == GameMode.CREATIVE) {
+            event.setCancelled(true);
+        }
+    }
+
 }

fakeplayer-core/src/main/java/io/github/hello09x/fakeplayer/core/repository/model/Feature.java

@@ -45,7 +45,7 @@ public enum Feature implements Translatable, Singletons {
             "fakeplayer.config.invulnerable",
             List.of(Permission.config),
             List.of("true", "false"),
-            "false",
+            "true",
             faker -> String.valueOf(faker.isInvulnerable()),
             (faker, value) -> faker.setInvulnerable(Boolean.parseBoolean(value))
     ),

fakeplayer-core/src/main/resources/config.yml

@@ -12,7 +12,7 @@
 
 # DO NOT EDIT
 # 不要修改
-version: 24
+version: 25
 
 
 # ============================================================
@@ -211,7 +211,7 @@ default-features:
   pickup_items: true
   skin: true
   look_at_entity: false
-  invulnerable: false
+  invulnerable: true
   replenish: false
   replace_tools: false
   autofish: false