@ue-too/math / sameDirection

Function: sameDirection()

sameDirection(a, b, precision): boolean

Defined in: index.ts:791

Checks if two vectors point in the same direction.

Parameters

a

Point

First vector

b

Point

Second vector

precision

number = 0.001

Tolerance for comparison (defaults to 0.001)

Returns

boolean

True if vectors have the same direction (after normalization)

Remarks

Normalizes both vectors to unit vectors and compares them. Magnitude does not matter, only direction.

Example

const a = { x: 1, y: 0 };
const b = { x: 10, y: 0 }; // Same direction, different magnitude
sameDirection(a, b); // true

const c = { x: 1, y: 1 };
sameDirection(a, c); // false (different direction)