import { PlayerObject } from './model'

type AnimationFn = (player: PlayerObject, time: number) => void
interface IAnimation {
  play(player: PlayerObject, time: number): void
}
export type Animation = AnimationFn | IAnimation

declare function invokeAnimation(
  animation: Animation,
  player: PlayerObject,
  time: number
): void

declare class AnimationHandle implements IAnimation {
  readonly animation: Animation
  paused: boolean
  speed: number

  constructor(animation: Animation)

  play(player: PlayerObject, time: number): void

  reset(): void
}

export class CompositeAnimation implements IAnimation {
  readonly handles: Set<AnimationHandle>

  constructor()

  add(animation: Animation): AnimationHandle

  play(player: PlayerObject, time: number): void
}

export const WalkAnimation: AnimationFn