basic logic

src/types/index.ts

@@ -26,8 +26,24 @@ export class Game {
 
     public tick(deltaTime: number) {
         this.time += deltaTime;
+
+        const behavioursById = new Map(this.nodes.map((node) => [node.behaviour.id, node.behaviour]));
+
         for (const node of this.nodes)
-            node.behaviour.tick(deltaTime);
+            node.behaviour.produce(deltaTime);
+        for (const node of this.nodes)
+            node.behaviour.pull(deltaTime, (id) => behavioursById.get(id));
+    }
+
+    public reset() {
+        this.time = 0;
+         for (const node of this.nodes)
+            node.behaviour.reset();
+    }
+
+    /** Shallow copy with a new identity, so React sees a change after in-place mutations like `tick`. */
+    public clone(): Game {
+        return Object.assign(Object.create(Game.prototype), this);
     }
 }