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-<!DOCTYPE html>
-<html>
-<!--
-Copyright 2011 The Closure Library Authors. All Rights Reserved.
-
-Use of this source code is governed by the Apache License, Version 2.0.
-See the COPYING file for details.
--->
-<head>
-<meta http-equiv="X-UA-Compatible" content="IE=edge">
-<title>Closure Unit Tests - goog.vec.Vec4</title>
-<script src="../base.js"></script>
-<script>
- goog.require('goog.vec.Float32Array');
- goog.require('goog.vec.Vec4');
- goog.require('goog.testing.jsunit');
-</script>
-</head>
-<body>
-<script>
-
- function testDeprecatedConstructor() {
- assertElementsEquals([0, 0, 0, 0], goog.vec.Vec4.create());
-
- assertElementsEquals([1, 2, 3, 4],
- goog.vec.Vec4.createFromValues(1, 2, 3, 4));
-
- assertElementsEquals([1, 2, 3, 4],
- goog.vec.Vec4.createFromArray([1, 2, 3, 4]));
-
- var v = goog.vec.Vec4.createFromValues(1, 2, 3, 4);
- assertElementsEquals([1, 2, 3, 4], goog.vec.Vec4.clone(v));
- }
-
- function testConstructor() {
- assertElementsEquals([0, 0, 0, 0], goog.vec.Vec4.createFloat32());
-
- assertElementsEquals([1, 2, 3, 4],
- goog.vec.Vec4.createFloat32FromValues(1, 2, 3, 4));
-
- assertElementsEquals([1, 2, 3, 4],
- goog.vec.Vec4.createFloat32FromArray([1, 2, 3, 4]));
-
- var v = goog.vec.Vec4.createFloat32FromValues(1, 2, 3, 4);
- assertElementsEquals([1, 2, 3, 4], goog.vec.Vec4.cloneFloat32(v));
-
- assertElementsEquals([0, 0, 0, 0], goog.vec.Vec4.createFloat64());
-
- assertElementsEquals([1, 2, 3, 4],
- goog.vec.Vec4.createFloat64FromValues(1, 2, 3, 4));
-
- assertElementsEquals([1, 2, 3, 4],
- goog.vec.Vec4.createFloat64FromArray([1, 2, 3, 4]));
-
- var w = goog.vec.Vec4.createFloat64FromValues(1, 2, 3, 4);
- assertElementsEquals([1, 2, 3, 4], goog.vec.Vec4.cloneFloat64(w));
- }
-
- function testSet() {
- var v = goog.vec.Vec4.createFloat32();
- goog.vec.Vec4.setFromValues(v, 1, 2, 3, 4);
- assertElementsEquals([1, 2, 3, 4], v);
-
- goog.vec.Vec4.setFromArray(v, [4, 5, 6, 7]);
- assertElementsEquals([4, 5, 6, 7], v);
- }
-
- function testAdd() {
- var v0 = goog.vec.Vec4.createFloat32FromArray([1, 2, 3, 4]);
- var v1 = goog.vec.Vec4.createFloat32FromArray([5, 6, 7, 8]);
- var v2 = goog.vec.Vec4.cloneFloat32(v0);
-
- goog.vec.Vec4.add(v2, v1, v2);
- assertElementsEquals([1, 2, 3, 4], v0);
- assertElementsEquals([5, 6, 7, 8], v1);
- assertElementsEquals([6, 8, 10, 12], v2);
-
- goog.vec.Vec4.add(goog.vec.Vec4.add(v0, v1, v2), v0, v2);
- assertElementsEquals([7, 10, 13, 16], v2);
- }
-
- function testSubtract() {
- var v0 = goog.vec.Vec4.createFloat32FromArray([4, 3, 2, 1]);
- var v1 = goog.vec.Vec4.createFloat32FromArray([5, 6, 7, 8]);
- var v2 = goog.vec.Vec4.cloneFloat32(v0);
-
- goog.vec.Vec4.subtract(v2, v1, v2);
- assertElementsEquals([4, 3, 2, 1], v0);
- assertElementsEquals([5, 6, 7, 8], v1);
- assertElementsEquals([-1, -3, -5, -7], v2);
-
- goog.vec.Vec4.setFromValues(v2, 0, 0, 0, 0);
- goog.vec.Vec4.subtract(v1, v0, v2);
- assertElementsEquals([1, 3, 5, 7], v2);
-
- goog.vec.Vec4.subtract(goog.vec.Vec4.subtract(v1, v0, v2), v0, v2);
- assertElementsEquals([-3, 0, 3, 6], v2);
- }
-
- function testNegate() {
- var v0 = goog.vec.Vec4.createFloat32FromArray([1, 2, 3, 4]);
- var v1 = goog.vec.Vec4.createFloat32();
-
- goog.vec.Vec4.negate(v0, v1);
- assertElementsEquals([-1, -2, -3, -4], v1);
- assertElementsEquals([1, 2, 3, 4], v0);
-
- goog.vec.Vec4.negate(v0, v0);
- assertElementsEquals([-1, -2, -3, -4], v0);
- }
-
- function testScale() {
- var v0 = goog.vec.Vec4.createFloat32FromArray([1, 2, 3, 4]);
- var v1 = goog.vec.Vec4.createFloat32();
-
- goog.vec.Vec4.scale(v0, 4, v1);
- assertElementsEquals([4, 8, 12, 16], v1);
- assertElementsEquals([1, 2, 3, 4], v0);
-
- goog.vec.Vec4.setFromArray(v1, v0);
- goog.vec.Vec4.scale(v1, 5, v1);
- assertElementsEquals([5, 10, 15, 20], v1);
- }
-
- function testMagnitudeSquared() {
- var v0 = goog.vec.Vec4.createFloat32FromArray([1, 2, 3, 4]);
- assertEquals(30, goog.vec.Vec4.magnitudeSquared(v0));
- }
-
- function testMagnitude() {
- var v0 = goog.vec.Vec4.createFloat32FromArray([1, 2, 3, 4]);
- assertEquals(Math.sqrt(30), goog.vec.Vec4.magnitude(v0));
- }
-
- function testNormalize() {
- var v0 = goog.vec.Vec4.createFloat32FromArray([2, 3, 4, 5]);
- var v1 = goog.vec.Vec4.createFloat32();
- var v2 = goog.vec.Vec4.createFloat32();
- goog.vec.Vec4.scale(v0, 1 / goog.vec.Vec4.magnitude(v0), v2);
-
- goog.vec.Vec4.normalize(v0, v1);
- assertElementsEquals(v2, v1);
- assertElementsEquals([2, 3, 4, 5], v0);
-
- goog.vec.Vec4.setFromArray(v1, v0);
- goog.vec.Vec4.normalize(v1, v1);
- assertElementsEquals(v2, v1);
- }
-
- function testDot() {
- var v0 = goog.vec.Vec4.createFloat32FromArray([1, 2, 3, 4]);
- var v1 = goog.vec.Vec4.createFloat32FromArray([5, 6, 7, 8]);
- assertEquals(70, goog.vec.Vec4.dot(v0, v1));
- assertEquals(70, goog.vec.Vec4.dot(v1, v0));
- }
-
- function testLerp() {
- var v0 = goog.vec.Vec4.createFloat32FromValues(1, 2, 3, 4);
- var v1 = goog.vec.Vec4.createFloat32FromValues(10, 20, 30, 40);
- var v2 = goog.vec.Vec4.cloneFloat32(v0);
-
- goog.vec.Vec4.lerp(v2, v1, 0, v2);
- assertElementsEquals([1, 2, 3, 4], v2);
- goog.vec.Vec4.lerp(v2, v1, 1, v2);
- assertElementsEquals([10, 20, 30, 40], v2);
- goog.vec.Vec4.lerp(v0, v1, .5, v2);
- assertElementsEquals([5.5, 11, 16.5, 22], v2);
- }
-
- function testEquals() {
- var v0 = goog.vec.Vec4.createFloat32FromValues(1, 2, 3, 4);
- var v1 = goog.vec.Vec4.cloneFloat32(v0);
- assertElementsEquals(v0, v1);
-
- v1[0] = 5;
- assertFalse(goog.vec.Vec4.equals(v0, v1));
-
- v1 = goog.vec.Vec4.cloneFloat32(v0);
- v1[1] = 5;
- assertFalse(goog.vec.Vec4.equals(v0, v1));
-
- v1 = goog.vec.Vec4.cloneFloat32(v0);
- v1[2] = 5;
- assertFalse(goog.vec.Vec4.equals(v0, v1));
-
- v1 = goog.vec.Vec4.cloneFloat32(v0);
- v1[3] = 5;
- assertFalse(goog.vec.Vec4.equals(v0, v1));
- }
-
-</script>
-</body>