PerformanceTests/JetStream2/cdjs/vector_3d.js

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// Copyright (C) 2015 Apple Inc. All rights reserved.
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function Vector3D(x, y, z) {
    this.x = x;
    this.y = y;
    this.z = z;
}

Vector3D.prototype.plus = function(other) {
    return new Vector3D(this.x + other.x,
                        this.y + other.y,
                        this.z + other.z);
};

Vector3D.prototype.minus = function(other) {
    return new Vector3D(this.x - other.x,
                        this.y - other.y,
                        this.z - other.z);
};

Vector3D.prototype.dot = function(other) {
    return this.x * other.x + this.y * other.y + this.z * other.z;
};

Vector3D.prototype.squaredMagnitude = function() {
    return this.dot(this);
};

Vector3D.prototype.magnitude = function() {
    return Math.sqrt(this.squaredMagnitude());
};

Vector3D.prototype.times = function(amount) {
    return new Vector3D(this.x * amount,
                        this.y * amount,
                        this.z * amount);
};

Vector3D.prototype.as2D = function() {
    return new Vector2D(this.x, this.y);
};

Vector3D.prototype.toString = function() {
    return "[" + this.x + ", " + this.y + ", " + this.z + "]";
};