import { Engine } from './../Engine';
import * as Events from './../Events';
import { Scene } from '../Scene';
import { ExcaliburGraphicsContext } from '../Graphics';
export interface _initialize {
    _initialize(engine: Engine): void;
}
export interface _add {
    onAdd(scene: Scene): void;
}
export interface _remove {
    onRemove(engine: Engine): void;
}
/**
 * Type guard checking for internal initialize method
 * @internal
 * @param a
 */
export declare function has_initialize(a: any): a is _initialize;
/**
 *
 */
export declare function has_add(a: any): a is _add;
/**
 *
 */
export declare function has_remove(a: any): a is _remove;
export interface OnInitialize {
    onInitialize(engine: Engine): void;
}
/**
 *
 */
export declare function hasOnInitialize(a: any): a is OnInitialize;
export interface _preupdate {
    _preupdate(engine: Engine, elapsed: number): void;
}
/**
 *
 */
export declare function has_preupdate(a: any): a is _preupdate;
export interface OnPreUpdate {
    onPreUpdate(engine: Engine, elapsed: number): void;
}
/**
 *
 */
export declare function hasOnPreUpdate(a: any): a is OnPreUpdate;
export interface _postupdate {
    _postupdate(engine: Engine, elapsed: number): void;
}
/**
 *
 */
export declare function has_postupdate(a: any): a is _postupdate;
export interface OnPostUpdate {
    onPostUpdate(engine: Engine, elapsed: number): void;
}
/**
 *
 */
export declare function hasOnPostUpdate(a: any): a is OnPostUpdate;
export interface CanInitialize {
    /**
     * Overridable implementation
     */
    onInitialize(engine: Engine): void;
    /**
     * Event signatures
     */
    on(eventName: Events.initialize, handler: (event: Events.InitializeEvent<any>) => void): void;
    once(eventName: Events.initialize, handler: (event: Events.InitializeEvent<any>) => void): void;
    off(eventName: Events.initialize, handler?: (event: Events.InitializeEvent<any>) => void): void;
}
export interface OnAdd {
    onAdd(engine: Engine): void;
}
/**
 *
 */
export declare function hasOnAdd(a: any): a is OnAdd;
export interface CanAdd {
    onAdd(engine: Engine): void;
    on(eventName: Events.add, handler: (event: Events.AddEvent<any>) => void): void;
    once(eventName: Events.add, handler: (event: Events.AddEvent<any>) => void): void;
    off(eventName: Events.add, handler?: (event: Events.AddEvent<any>) => void): void;
}
export interface OnRemove {
    onRemove(engine: Engine): void;
}
/**
 *
 */
export declare function hasOnRemove(a: any): a is OnRemove;
export interface CanRemove {
    onRemove(engine: Engine): void;
    on(eventName: Events.remove, handler: (event: Events.RemoveEvent<any>) => void): void;
    once(eventName: Events.remove, handler: (event: Events.RemoveEvent<any>) => void): void;
    off(eventName: Events.remove, handler?: (event: Events.RemoveEvent<any>) => void): void;
}
export interface SceneActivationContext<TData = undefined> {
    data?: TData;
    previousScene: Scene;
    nextScene: Scene;
    engine: Engine;
}
export interface CanActivate<TData = undefined> {
    /**
     * Overridable implementation
     */
    onActivate(context: SceneActivationContext<TData>): void;
    /**
     * Event signatures
     */
    on(eventName: Events.activate, handler: (event: Events.ActivateEvent) => void): void;
    once(eventName: Events.activate, handler: (event: Events.ActivateEvent) => void): void;
    off(eventName: Events.activate, handler?: (event: Events.ActivateEvent) => void): void;
}
export interface CanDeactivate {
    /**
     * Overridable implementation
     */
    onDeactivate(context: SceneActivationContext<never>): void;
    /**
     * Event signature
     */
    on(eventName: Events.deactivate, handler: (event: Events.DeactivateEvent) => void): void;
    once(eventName: Events.deactivate, handler: (event: Events.DeactivateEvent) => void): void;
    off(eventName: Events.deactivate, handler?: (event: Events.DeactivateEvent) => void): void;
}
export interface CanUpdate {
    /**
     * Overridable implementation
     */
    onPreUpdate(engine: Engine, elapsed: number): void;
    /**
     * Event signature
     */
    on(eventName: Events.preupdate, handler: (event: Events.PreUpdateEvent<any>) => void): void;
    once(eventName: Events.preupdate, handler: (event: Events.PreUpdateEvent<any>) => void): void;
    off(eventName: Events.preupdate, handler?: (event: Events.PreUpdateEvent<any>) => void): void;
    /**
     * Overridable implementation
     */
    onPostUpdate(engine: Engine, elapsed: number): void;
    /**
     * Event signatures
     */
    on(eventName: Events.postupdate, handler: (event: Events.PostUpdateEvent<any>) => void): void;
    once(eventName: Events.postupdate, handler: (event: Events.PostUpdateEvent<any>) => void): void;
    off(eventName: Events.postupdate, handler?: (event: Events.PostUpdateEvent<any>) => void): void;
}
export interface OnPreDraw {
    /**
     * Overridable implementation
     */
    onPreDraw(ctx: ExcaliburGraphicsContext, elapsed: number): void;
    /**
     * Event signatures
     */
    on(eventName: Events.predraw, handler: (event: Events.PreDrawEvent) => void): void;
    once(eventName: Events.predraw, handler: (event: Events.PreDrawEvent) => void): void;
    off(eventName: Events.predraw, handler?: (event: Events.PreDrawEvent) => void): void;
}
export interface OnPostDraw {
    /**
     * Overridable implementation
     */
    onPostDraw(ctx: ExcaliburGraphicsContext, elapsed: number): void;
    /**
     * Event signatures
     */
    on(eventName: Events.postdraw, handler: (event: Events.PostDrawEvent) => void): void;
    once(eventName: Events.postdraw, handler: (event: Events.PostDrawEvent) => void): void;
    off(eventName: Events.postdraw, handler?: (event: Events.PostDrawEvent) => void): void;
}
export interface CanDraw extends OnPreDraw, OnPostDraw {
    on(eventName: Events.predraw, handler: (event: Events.PreDrawEvent) => void): void;
    on(eventName: Events.postdraw, handler: (event: Events.PostDrawEvent) => void): void;
    once(eventName: Events.predraw, handler: (event: Events.PreDrawEvent) => void): void;
    once(eventName: Events.postdraw, handler: (event: Events.PostDrawEvent) => void): void;
    off(eventName: Events.predraw, handler?: (event: Events.PreDrawEvent) => void): void;
    off(eventName: Events.postdraw, handler?: (event: Events.PostDrawEvent) => void): void;
}
/**
 *
 */
export declare function hasPreDraw(a: any): a is OnPreDraw;
/**
 *
 */
export declare function hasPostDraw(a: any): a is OnPostDraw;
export interface CanBeKilled {
    /**
     * Overridable implementation
     */
    onPreKill(_scene: Scene): void;
    /**
     * Event signatures
     */
    on(eventName: Events.prekill, handler: (event: Events.PreKillEvent) => void): void;
    once(eventName: Events.prekill, handler: (event: Events.PreKillEvent) => void): void;
    off(eventName: Events.prekill, handler: (event: Events.PreKillEvent) => void): void;
    /**
     * Overridable implementation
     */
    onPostKill(_scene: Scene): void;
    /**
     * Event signatures
     */
    on(eventName: Events.postkill, handler: (event: Events.PostKillEvent) => void): void;
    once(eventName: Events.postkill, handler: (event: Events.PostKillEvent) => void): void;
    off(eventName: Events.postkill, handler: (event: Events.PostKillEvent) => void): void;
}