pocket-physics/esm/v2.d.ts

Verlet physics extracted from pocket-ces demos

export declare type Vector2<V extends number = number> = {
    x: V;
    y: V;
};
export declare function v2<V extends number>(x?: V, y?: V): Vector2<V>;
export declare const copy: <V extends number>(out: Vector2<V>, a: Vector2<V>) => Vector2<V>;
export declare const set: <V extends number>(out: Vector2<V>, x: V, y: V) => Vector2<V>;
export declare const add: <V extends number>(out: Vector2<V>, a: Vector2<V>, b: Vector2<V>) => Vector2<V>;
export declare const sub: <V extends number>(out: Vector2<V>, a: Vector2<V>, b: Vector2<V>) => Vector2<V>;
export declare const dot: <V extends number>(a: Vector2<V>, b: Vector2<V>) => number;
export declare const scale: <V extends number>(out: Vector2<V>, a: Vector2<V>, factor: number) => Vector2<V>;
export declare const distance: <V extends number>(v1: Vector2<V>, v2: Vector2<V>) => number;
export declare const distance2: <V extends number>(v1: Vector2<V>, v2: Vector2<V>) => number;
export declare const magnitude: <V extends number>(v1: Vector2<V>) => number;
export declare const normalize: <V extends number>(out: Vector2<V>, a: Vector2<V>) => Vector2<V>;
/**
 * Compute the normal pointing away perpendicular from two vectors.
 * Given v1(0,0) -> v2(10, 0), the normal will be (0, 1)
 * */
export declare const normal: <V extends number>(out: Vector2<V>, v1: Vector2<V>, v2: Vector2<V>) => Vector2<V>;
export declare const perpDot: <V extends number>(v1: Vector2<V>, v2: Vector2<V>) => number;
/**
 * This is mostly useful for moving a verlet-style [current, previous]
 * by the same amount, translating them while preserving velocity.
 * @param by the vector to add to each subsequent vector
 * @param vN any number of vectors to translate
 */
export declare const translate: <V extends number>(by: Vector2<V>, ...vN: Vector2<V>[]) => void;
/**
 *
 * @param v Print this vector for nice logs
 */
export declare function vd(v: Vector2): string;
/**
 * Rotate a vector around another point. Taken nearly verbatim from gl-matrix
 */
export declare const rotate2d: <V extends Vector2<number>>(out: V, target: V, origin: V, rad: number) => V;
/**
 * Compute the Theta angle between a vector and the origin.
 */
export declare function angleOf(v: Vector2): number;
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