import { type AttackMeta } from "./attackTags.js";
export type DefenseKind = "parry" | "block" | "dodge";
export interface DefensiveWindowConfig {
    kind: DefenseKind;
    startupMs?: number;
    activeMs: number;
    recoveryMs?: number;
    iframes?: {
        fromMs: number;
        toMs: number;
    };
}
export type DefenseOutcome = "parry" | "block" | "iframe" | "hit";
/**
 * Result of resolving an incoming hit against a defensive window: `outcome` is the graded defense
 * (`"parry"`/`"block"`/`"iframe"`/`"hit"`) and `perfect` is true when the input landed inside the
 * tight just-frame at the window's start rather than its wider active span.
 */
export interface DefenseResolution {
    outcome: DefenseOutcome;
    perfect: boolean;
}
export declare function windowActiveAt(config: DefensiveWindowConfig, elapsedMs: number): boolean;
export declare function iframeActiveAt(config: DefensiveWindowConfig, elapsedMs: number): boolean;
export declare function totalWindowMs(config: DefensiveWindowConfig): number;
export interface ResolveDefenseInput {
    config: DefensiveWindowConfig;
    elapsedMs: number;
    attack: AttackMeta;
}
export declare function resolveDefense(input: ResolveDefenseInput): DefenseResolution;
export interface DefensiveWindow {
    open(nowMs: number): void;
    close(): void;
    isOpen(nowMs: number): boolean;
    evaluate(nowMs: number, attack: AttackMeta): DefenseResolution;
    isInvulnerable(nowMs: number): boolean;
}
/**
 * Open a timed defensive window — block, parry, or i-frames — and test incoming hits against it.
 *
 * @capability parry-window time a block/parry/i-frame defensive window against incoming hits
 */
export declare function createDefensiveWindow(config: DefensiveWindowConfig): DefensiveWindow;