import { Component, h } from 'preact';
export declare class BulletInfo {
    key: number;
    text: string;
    channel: number;
    color: string;
    fontSize: number;
    constructor(key: number, text: string, channel: number, color: string, fontSize: number);
}
export declare class BulletConfig {
    screenWidth: number;
    channelHeight: number;
    totalTime: number;
    constructor(screenWidth: number, channelHeight: number, totalTime: number);
}
export declare class BulletItemAnimation extends Component<{
    bulletInfo: BulletInfo;
    bulletConfig: BulletConfig;
    onItemFree: Function;
    onChannelFree: Function;
}, {}> {
    private freeChannelTimer;
    private refText;
    constructor(props: any);
    componentDidMount(): void;
    onAnimationStart: () => void;
    onAnimationEnd: () => void;
    setFreeChannelTimer: () => void;
    freeChannel: () => void;
    render(): h.JSX.Element;
}