refactor: get

packages/ecs/src/ecs.js

@@ -265,15 +265,30 @@ export default class Ecs {
     view.setUint32(0, entitiesWritten, true);
   }
 
-  get(entity, Components = Object.keys(this.Components)) {
+  get(entity) {
     if (!this.$$entities[entity]) {
       return undefined;
     }
     const result = {};
-    for (let i = 0; i < Components.length; i++) {
-      const component = this.Components[Components[i]].get(entity);
+    for (let i = 0; i < this.$$entities[entity].length; i++) {
+      const component = this.Components[this.$$entities[entity][i]].get(entity);
       if ('undefined' !== typeof component) {
-        result[Components[i]] = component;
+        result[this.$$entities[entity][i]] = component;
+      }
+    }
+    return result;
+  }
+
+  getUnsafe(entity) {
+    if (!this.$$entities[entity]) {
+      return undefined;
+    }
+    const result = {};
+    const components = this.$$entities[entity];
+    for (let i = 0; i < components.length; i++) {
+      const instance = this.Components[components[i]].getUnsafe(entity);
+      if ('undefined' !== typeof instance) {
+        result[components[i]] = instance;
       }
     }
     return result;

packages/ecs/test/ecs.js

@@ -20,6 +20,13 @@ it('can create entities with components', () => {
     .to.deep.equal(JSON.stringify({Empty: {}, Position: {x: 32, y: 420, z: 0}}));
 });
 
+it('can get entities unsafely', () => {
+  const ecs = new Ecs({Empty, Position});
+  const entity = ecs.create({Empty: {}, Position: {y: 420}});
+  expect(JSON.stringify(ecs.getUnsafe(entity)))
+    .to.deep.equal(JSON.stringify({Empty: {}, Position: {x: 32, y: 420, z: 0}}));
+});
+
 it('can insert components into entities', () => {
   const ecs = new Ecs({Empty, Position});
   const entity = ecs.create({Empty: {}});