feat: add nukkit package

packages/nukkit/src/event.ts

@@ -0,0 +1,47 @@
+import { event, server, plugin } from '@ms/api'
+import { injectable, inject } from '@ms/container'
+
+const Nukkit: cn.nukkit.Server = base.getInstance().getServer();
+const Event = Java.type("cn.nukkit.event.Event");
+const Modifier = Java.type("java.lang.reflect.Modifier");
+const Listener = Java.type("cn.nukkit.event.Listener");
+const EventPriority = Java.type("cn.nukkit.event.EventPriority");
+const EventExecutor = Java.type("cn.nukkit.plugin.EventExecutor");
+
+@injectable()
+export class NukkitEvent extends event.Event {
+    @inject(plugin.PluginInstance)
+    private pluginInstance: any
+
+    constructor() {
+        super('cn/nukkit/event');
+    }
+
+    getJarFile(resource: string) {
+        return super.getJarFile('cn/nukkit/Nukkit.class')
+    }
+    isValidEvent(clazz: any): boolean {
+        // 继承于 org.bukkit.event.Event
+        return Event.class.isAssignableFrom(clazz) &&
+            // 访问符为Public
+            Modifier.isPublic(clazz.getModifiers()) &&
+            // 不是抽象类
+            !Modifier.isAbstract(clazz.getModifiers());
+    }
+    register(eventCls: any, exec: Function, priority: event.EventPriority, ignoreCancel: boolean) {
+        let listener = new Listener({});
+        Nukkit.getPluginManager().registerEvent(
+            eventCls,
+            listener,
+            EventPriority[priority],
+            new EventExecutor({
+                execute: exec
+            }),
+            this.pluginInstance,
+            ignoreCancel);
+        return listener;
+    }
+    unregister(event: any, listener: any): void {
+        event.getHandlers().unregister(listener);
+    }
+}