react-use-gesture
Version:
React hook for receiving gestures https://use-gesture.netlify.app
36 lines (35 loc) • 1.4 kB
TypeScript
export declare function addV<T extends number[]>(v1: T, v2: T): T;
export declare function subV<T extends number[]>(v1: T, v2: T): T;
/**
* Calculates distance
* @param movement the difference between current and initial vectors
* @returns distance
*/
export declare function calculateDistance(movement: number[]): number;
interface Kinematics {
velocities: number[];
velocity: number;
distance: number;
direction: number[];
}
export declare function calculateAllGeometry<T extends number[]>(movement: T, delta?: T): {
distance: number;
direction: T;
};
/**
* Calculates all kinematics
* @template T the expected vector type
* @param movement the difference between current and initial vectors
* @param delta the difference between current and previous vectors
* @param delta_t the time difference between current and previous timestamps
* @returns all kinematics
*/
export declare function calculateAllKinematics<T extends number[]>(movement: T, delta: T, dt: number): Kinematics;
/**
* Because IE doesn't support `Math.sign` function, so we use the polyfill version of the function.
* This polyfill function is suggested by Mozilla:
* https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sign#Polyfill
* @param x target number
*/
export declare function sign(x: number): number;
export {};