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swiftentitygameplay-kit

On upgrade to swift3, getting an error 'cannot override a property with type GKEntity'

After updating to swift3, the commented line is returning an error: Property 'entity' with type 'GKEntity!' (aka 'ImplicitlyUnwrappedOptional') cannot override a property with type 'GKEntity?'

import SpriteKit
import GameplayKit
class EntityNode: SKNode {  
    weak var entity: GKEntity!    // error here
}

It worked fine before the upgrade. Any idea what is wrong and how to address this?

Solution

  • SKNode already has a property called entity which is defined like so:

    var entity: GKEntity?

    Therefore you can not override that with your entity of type GKEntity!

    So, you can either rename your entity to something else, or you can use the entity which already exists.

    You can read more about SKNode here

    Hope that helps you :)