feat(control) 多角色控制

systems/CommandSystem.js

@@ -0,0 +1,31 @@
+// systems/CommandSystem.js
+import { activeUnit, selectedUnits } from './ControlMode.js';
+
+export class CommandSystem {
+  constructor(scene) {
+    this.scene = scene;
+
+    scene.events.on('move-relative', this.onMoveRelative, this);
+    scene.events.on('move-to-point', this.onMoveToPoint, this);
+    scene.events.on('select-unit', this.onSelectUnit, this);
+  }
+
+  onMoveRelative(dir) {
+    if (activeUnit) {
+      activeUnit.moveRelative(dir.x, dir.y);
+    }
+  }
+
+  onMoveToPoint(x, y) {
+    const targets = selectedUnits.length > 0 ? selectedUnits : (activeUnit ? [activeUnit] : []);
+    targets.forEach(unit => unit.moveTo(x, y));
+  }
+
+  onSelectUnit(unit) {
+    // 切换单位
+    import('./ControlMode.js').then(mod => {
+      mod.setActiveUnit(unit);
+      this.scene.events.emit('unit-activated', unit);
+    });
+  }
+}