export type CharacterHitbox = {
    w: number;
    h: number;
    anchorMode?: "top-left" | "center" | "foot";
};
export type GraphicBounds = {
    left: number;
    top: number;
    right: number;
    bottom: number;
    width: number;
    height: number;
    centerX: number;
    centerY: number;
};
type VisibleGraphicBounds = {
    left: number;
    top: number;
    right: number;
    bottom: number;
};
export declare const toPositiveNumber: (value: unknown) => number | undefined;
export declare const scaleHitboxForGraphicDisplay: (box: CharacterHitbox | null | undefined, scale: [number, number]) => CharacterHitbox | null;
export declare const resolveHitboxAnchor: (spriteWidth: number | undefined, spriteHeight: number | undefined, realSize: number | {
    height?: number;
} | undefined, box: CharacterHitbox | null | undefined) => [number, number];
export declare const resolveScaledHitboxAnchor: (spriteWidth: number | undefined, spriteHeight: number | undefined, realSize: number | {
    height?: number;
} | undefined, box: CharacterHitbox | null | undefined, scale: [number, number]) => [number, number];
export declare const resolveScaledGraphicBounds: ({ frameWidth, frameHeight, visibleBounds, anchor, scale, x, y, }: {
    frameWidth: number;
    frameHeight: number;
    visibleBounds?: VisibleGraphicBounds;
    anchor: [number, number];
    scale: [number, number];
    x?: number;
    y?: number;
}) => GraphicBounds;
export {};