@woosh/meep-engine/src/engine/intelligence/optimization/RandomOptimizer.d.ts

Pure JavaScript game engine. Fully featured and production ready.

/**
 * Hill climbing optimizer based on testing random moves one move at a time, if overall fitness improves - that move is committed, otherwise it's rejected
 * Very dumb, but quite effective. Requires very little code to write a competent optimizer, especially when state space is relatively small
 * @template S
 * @class
 */
export class RandomOptimizer<S> {
    /**
     *
     * @type {S|null}
     */
    state: S | null;
    /**
     *
     * @type {function(S):S}
     */
    cloneState: (arg0: S) => S;
    /**
     *
     * @type {function(S):Function[]}
     */
    computeValidActions: (arg0: S) => Function[];
    /**
     *
     * @type {function(S):number}
     */
    scoreFunction: (arg0: S) => number;
    /**
     *
     * @type {function(S,random:function():number)|null}
     */
    randomAction: (arg0: S, arg1: random) => () => number;
    /**
     *
     * @type {function():number}
     */
    random: () => number;
    /**
     *
     * @param {S} state
     * @param {function(S):Function[]} [computeValidActions]
     * @param {function(S):S} cloneState
     * @param {function(S):number} scoreFunction
     * @param {function(S,random:function():number)} [randomAction]
     */
    initialize({ state, computeValidActions, cloneState, scoreFunction, randomAction }: S): void;
    /**
     * Perform a single optimization step
     * @returns {boolean} True if state was improved, false if no change has occurred
     */
    step(): boolean;
    /**
     *
     * @param {number} tries
     * @returns {boolean}
     */
    stepThrough(tries: number): boolean;
}
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