Babylon.js/src/Behaviors/babylon.behavior.ts

module BABYLON {
    /**
     * Interface used to define a behavior
     */
    export interface Behavior<T> {
        /** gets or sets behavior's name */
        name: string;

        /**
         * Function called when the behavior needs to be initialized (after attaching it to a target)
         */
        init(): void
        /**
         * Called when the behavior is attached to a target
         * @param target defines the target where the behavior is attached to
         */
        attach(target: T): void;
        /**
         * Called when the behavior is detached from its target
         */
        detach(): void;
    }

    /**
     * Interface implemented by classes supporting behaviors
     */
    export interface IBehaviorAware<T> {
        /**
         * Attach a behavior
         * @param behavior defines the behavior to attach
         * @returns the current host
         */
        addBehavior(behavior: Behavior<T>): T
        /**
         * Remove a behavior from the current object
         * @param behavior defines the behavior to detach
         * @returns the current host
         */
        removeBehavior(behavior: Behavior<T>): T;
        /**
         * Gets a behavior using its name to search
         * @param name defines the name to search
         * @returns the behavior or null if not found
         */
        getBehaviorByName(name: string): Nullable<Behavior<T>>;
    }
}