initial commit

app/Events/GameSnapshot.php

@@ -0,0 +1,55 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Events;
+
+use App\Game\Room;
+use Illuminate\Broadcasting\Channel;
+use Illuminate\Broadcasting\InteractsWithSockets;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
+use Illuminate\Foundation\Events\Dispatchable;
+use Illuminate\Queue\SerializesModels;
+
+final class GameSnapshot implements ShouldBroadcastNow
+{
+    use Dispatchable;
+    use InteractsWithSockets;
+    use SerializesModels;
+
+    /**
+     * @param array<string, mixed> $players
+     * @param array<int, mixed> $entities
+     * @param array<int, mixed> $events
+     */
+    public function __construct(
+        public Room $room,
+        public array $players,
+        public array $entities,
+        public array $events,
+    ) {
+    }
+
+    public function broadcastOn(): Channel
+    {
+        return new Channel('game.' . $this->room->id);
+    }
+
+    public function broadcastAs(): string
+    {
+        return 'snapshot';
+    }
+
+    /** @return array<string, mixed> */
+    public function broadcastWith(): array
+    {
+        return [
+            'state' => $this->room->state,
+            'elapsed' => round($this->room->elapsed, 2),
+            'seq' => $this->room->seq,
+            'players' => $this->players,
+            'entities' => $this->entities,
+            'events' => $this->events,
+        ];
+    }
+}