feat: allEntities

packages/topdown/layer.js

@@ -72,6 +72,10 @@ export class Layer extends decorate(class {}) {
     return true;
   }
 
+  allEntities() {
+    return Array.from(this.entityList);
+  }
+
   destroy() {
     this.entityList.destroy();
     this.entityList.off('entityAdded', this.onEntityAddedToLayer);

packages/topdown/layers.js

@@ -40,6 +40,15 @@ export class Layers extends decorate(class {}) {
     this.emit('layerAdded', layer, index);
   }
 
+  allEntities() {
+    let allEntities = [];
+    for (const index in this.layers) {
+      const layer = this.layers[index];
+      allEntities = allEntities.concat(layer.allEntities());
+    }
+    return allEntities;
+  }
+
   destroy() {
     for (const index in this.layers) {
       const layer = this.layers[index];

packages/topdown/room.js

@@ -41,6 +41,10 @@ export class Room extends decorate(class {}) {
     this.layers.addEntityToLayer(entity, layerIndex);
   }
 
+  allEntities() {
+    return this.layers.allEntities();
+  }
+
   destroy() {
     this.layers.destroy();
     this.layers.off('entityAdded', this.onEntityAddedToRoom);