@ssgoi/core/dist/animator/integrator/double-spring-integrator.d.ts

Core animation engine for SSGOI - Native app-like page transitions with spring physics

import { Integrator, IntegratorState } from './types';
import { SpringIntegratorConfig } from './spring-integrator';
/**
 * Follower spring configuration
 */
export interface FollowerSpringConfig {
    stiffness: number;
    damping: number;
    /** Position threshold for settling detection @default 0.01 */
    restDelta?: number;
    /** Velocity threshold for settling detection @default 0.01 */
    restSpeed?: number;
}
export interface DoubleSpringIntegratorConfig extends SpringIntegratorConfig {
    /**
     * Follower spring configuration
     * - number (0-1): stiffness ratio (smaller = stronger ease-in)
     * - { stiffness, damping }: custom follower spring config
     */
    follower?: number | FollowerSpringConfig;
}
export declare class DoubleSpringIntegrator implements Integrator {
    private readonly leader;
    private readonly follower;
    private readonly restDelta;
    private readonly restSpeed;
    constructor(config: DoubleSpringIntegratorConfig);
    step(state: IntegratorState, target: number, dt: number): IntegratorState;
    isSettled(state: IntegratorState, target: number): boolean;
}
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