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export class Vector {
static of([x, y]) {
return new Vector(x, y)
}
constructor(x, y) {
this.x = x
this.y = y
}
add(val) {
return new Vector(this.x + val.x, this.y + val.y)
}
subtract(val) {
return new Vector(this.x - val.x, this.y - val.y)
}
multiply(scalar) {
return new Vector(this.x * scalar, this.y * scalar)
}
divide(scalar) {
return new Vector(this.x / scalar, this.y / scalar)
}
dot(other) {
return this.x * other.x + this.y * other.y
}
cross(other) {
return this.x * other.y - other.x * this.y
}
hadamard(other) {
return new Vector(this.x * other.x, this.y * other.y)
}
length() {
return Math.sqrt(this.x ** 2 + this.y ** 2)
}
distance(other) {
return this.subtract(other).length()
}
normalize() {
const length = this.length()
if (length === 0) {
return new Vector(0, 0)
}
return new Vector(this.x / length, this.y / length)
}
rotateByRadians(radians) {
const cos = Math.cos(radians)
const sin = Math.sin(radians)
return new Vector(this.x * cos - this.y * sin, this.x * sin + this.y * cos)
}
rotateByDegrees(degrees) {
return this.rotateByRadians((degrees * Math.PI) / 180)
}
}
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