Drones Factory Example

// Drone Interface
interface Drone {
  fly(): string;
}

// Concrete Drone 1: Simple Plastic Drone
class SimplePlasticDrone implements Drone {
  fly(): string {
    return 'Flying a simple plastic drone';
  }
}

// Concrete Drone 2: Drone With Missiles
class DroneWithMissiles implements Drone {
  fly(): string {
    return 'Flying a drone with missiles';
  }
}

// Concrete Drone 3: Kamikaza Drone
class KamikazaDrone implements Drone {
  fly(): string {
    return 'Flying a kamikaza drone';
  }
}

// Drone Factory
class DronesFactory {
  createDrone(type: string): Drone {
    switch (type) {
      case 'simple':
        return new SimplePlasticDrone();
      case 'missiles':
        return new DroneWithMissiles();
      case 'kamikaza':
        return new KamikazaDrone();
      default:
        throw new Error('Invalid drone type');
    }
  }
}

// Client Code
const factory = new DronesFactory();
const simpleDrone = factory.createDrone('simple');
console.log(simpleDrone.fly()); // Output: 'Flying a simple plastic drone'

const missileDrone = factory.createDrone('missiles');
console.log(missileDrone.fly()); // Output: 'Flying a drone with missiles'

const kamikazaDrone = factory.createDrone('kamikaza');
console.log(kamikazaDrone.fly()); // Output: 'Flying a kamikaza drone'