You are working on a gaming application that allows users to create and customize their avatars. The application has an event system that triggers certain actions when specific events occur.

You need to implement a class called `AvatarController` that will handle avatar-related events. The class should have a method called `avatarChanged` which will be called whenever the avatar has been changed. The `avatarChanged` method should receive an `AvatarEvent` object as a parameter.

Your task is to implement the `AvatarController` class and write the `avatarChanged` method.
user
Sure, I'd be happy to help you with that. Here's a basic implementation of the `AvatarController` class and the `avatarChanged` method in TypeScript:

```typescript
class AvatarController {
  private avatar: any;

  constructor(avatar: any) {
    this.avatar = avatar;
  }

  avatarChanged(event: AvatarEvent) {
    console.log(`Avatar changed: ${event.details.avatar}`);
    // perform any actions that need to be taken when the avatar changes
  }
}

interface AvatarEvent {
  type: 'AvatarChanged';
  details: {
    avatar: any;
  };
}
```

In this implementation, the `AvatarController` takes an `Avatar` instance as a constructor argument. In the `avatarChanged` method, it logs a message to the console indicating which avatar was changed, followed by an example of what action could be performed.

You'll need to handle how the event gets triggered and passed to the `AvatarController` in your application's event system.
assistant
You are working on a gaming application that allows users to create and customize their avatars. The application has an event system that triggers certain actions when specific events occur.

You need to implement a class called `AvatarController` that will handle avatar-related events. The class should have a method called `avatarChanged` which will be called whenever the avatar has been changed. The `avatarChanged` method should receive an `AvatarEvent` object as a parameter.

Your task is to implement the `AvatarController` class and write the `avatarChanged` method.
user
Here's a possible implementation of the `AvatarController` class with the `avatarChanged` method:

```python
class AvatarEvent:
    def __init__(self, avatar):
        self.avatar = avatar

class AvatarController:
    def __init__(self):
        self._avatar = None

    def avatarChanged(self, event: AvatarEvent):
        prev_avatar = self._avatar
        self._avatar = event.avatar

        print(f"Avatar changed from {prev_avatar} to {self._avatar}")
        # Here you can add any additional logic to be executed when the avatar is changed
```

In this implementation, the `AvatarEvent` class represents an event that contains the changed avatar. The `AvatarController` class handles avatar-related events and has an `avatarChanged` method to handle avatar changes. The method takes an `AvatarEvent` object as a parameter and updates the avatar after printing the change information. You can add any additional logic specific to your gaming application in the place mentioned in the comment.
assistant