Andreas Hocevar
231 lines
7.1 KiB
HTML
231 lines
7.1 KiB
HTML
<!DOCTYPE html>
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<html>
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<!--
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Copyright 2011 The Closure Library Authors. All Rights Reserved.
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Use of this source code is governed by the Apache License, Version 2.0.
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See the COPYING file for details.
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-->
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<head>
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<title>Closure Unit Tests - goog.vec.Vec4</title>
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<script src="../base.js"></script>
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<script>
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goog.require('goog.vec.Float32Array');
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goog.require('goog.vec.Vec4');
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goog.require('goog.testing.jsunit');
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</script>
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</head>
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<body>
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<script>
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function testDeprecatedConstructor() {
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assertElementsEquals([0, 0, 0, 0], goog.vec.Vec4.create());
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assertElementsEquals([1, 2, 3, 4],
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goog.vec.Vec4.createFromValues(1, 2, 3, 4));
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assertElementsEquals([1, 2, 3, 4],
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goog.vec.Vec4.createFromArray([1, 2, 3, 4]));
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var v = goog.vec.Vec4.createFromValues(1, 2, 3, 4);
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assertElementsEquals([1, 2, 3, 4], goog.vec.Vec4.clone(v));
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}
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function testConstructor() {
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assertElementsEquals([0, 0, 0, 0], goog.vec.Vec4.createFloat32());
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assertElementsEquals([1, 2, 3, 4],
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goog.vec.Vec4.createFloat32FromValues(1, 2, 3, 4));
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assertElementsEquals([1, 2, 3, 4],
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goog.vec.Vec4.createFloat32FromArray([1, 2, 3, 4]));
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var v = goog.vec.Vec4.createFloat32FromValues(1, 2, 3, 4);
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assertElementsEquals([1, 2, 3, 4], goog.vec.Vec4.cloneFloat32(v));
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assertElementsEquals([0, 0, 0, 0], goog.vec.Vec4.createFloat64());
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assertElementsEquals([1, 2, 3, 4],
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goog.vec.Vec4.createFloat64FromValues(1, 2, 3, 4));
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assertElementsEquals([1, 2, 3, 4],
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goog.vec.Vec4.createFloat64FromArray([1, 2, 3, 4]));
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var w = goog.vec.Vec4.createFloat64FromValues(1, 2, 3, 4);
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assertElementsEquals([1, 2, 3, 4], goog.vec.Vec4.cloneFloat64(w));
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}
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function testSet() {
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var v = goog.vec.Vec4.createFloat32();
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goog.vec.Vec4.setFromValues(v, 1, 2, 3, 4);
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assertElementsEquals([1, 2, 3, 4], v);
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goog.vec.Vec4.setFromArray(v, [4, 5, 6, 7]);
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assertElementsEquals([4, 5, 6, 7], v);
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}
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function testAdd() {
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var v0 = goog.vec.Vec4.createFloat32FromArray([1, 2, 3, 4]);
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var v1 = goog.vec.Vec4.createFloat32FromArray([5, 6, 7, 8]);
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var v2 = goog.vec.Vec4.cloneFloat32(v0);
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goog.vec.Vec4.add(v2, v1, v2);
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assertElementsEquals([1, 2, 3, 4], v0);
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assertElementsEquals([5, 6, 7, 8], v1);
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assertElementsEquals([6, 8, 10, 12], v2);
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goog.vec.Vec4.add(goog.vec.Vec4.add(v0, v1, v2), v0, v2);
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assertElementsEquals([7, 10, 13, 16], v2);
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}
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function testSubtract() {
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var v0 = goog.vec.Vec4.createFloat32FromArray([4, 3, 2, 1]);
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var v1 = goog.vec.Vec4.createFloat32FromArray([5, 6, 7, 8]);
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var v2 = goog.vec.Vec4.cloneFloat32(v0);
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goog.vec.Vec4.subtract(v2, v1, v2);
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assertElementsEquals([4, 3, 2, 1], v0);
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assertElementsEquals([5, 6, 7, 8], v1);
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assertElementsEquals([-1, -3, -5, -7], v2);
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goog.vec.Vec4.setFromValues(v2, 0, 0, 0, 0);
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goog.vec.Vec4.subtract(v1, v0, v2);
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assertElementsEquals([1, 3, 5, 7], v2);
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goog.vec.Vec4.subtract(goog.vec.Vec4.subtract(v1, v0, v2), v0, v2);
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assertElementsEquals([-3, 0, 3, 6], v2);
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}
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function testNegate() {
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var v0 = goog.vec.Vec4.createFloat32FromArray([1, 2, 3, 4]);
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var v1 = goog.vec.Vec4.createFloat32();
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goog.vec.Vec4.negate(v0, v1);
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assertElementsEquals([-1, -2, -3, -4], v1);
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assertElementsEquals([1, 2, 3, 4], v0);
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goog.vec.Vec4.negate(v0, v0);
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assertElementsEquals([-1, -2, -3, -4], v0);
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}
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function testAbs() {
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var v0 = goog.vec.Vec4.createFloat32FromValues(-1, -2, -3, -4);
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var v1 = goog.vec.Vec4.createFloat32();
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goog.vec.Vec4.abs(v0, v1);
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assertElementsEquals([1, 2, 3, 4], v1);
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assertElementsEquals([-1, -2, -3, -4], v0);
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goog.vec.Vec4.abs(v0, v0);
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assertElementsEquals([1, 2, 3, 4], v0);
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}
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function testScale() {
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var v0 = goog.vec.Vec4.createFloat32FromArray([1, 2, 3, 4]);
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var v1 = goog.vec.Vec4.createFloat32();
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goog.vec.Vec4.scale(v0, 4, v1);
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assertElementsEquals([4, 8, 12, 16], v1);
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assertElementsEquals([1, 2, 3, 4], v0);
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goog.vec.Vec4.setFromArray(v1, v0);
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goog.vec.Vec4.scale(v1, 5, v1);
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assertElementsEquals([5, 10, 15, 20], v1);
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}
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function testMagnitudeSquared() {
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var v0 = goog.vec.Vec4.createFloat32FromArray([1, 2, 3, 4]);
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assertEquals(30, goog.vec.Vec4.magnitudeSquared(v0));
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}
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function testMagnitude() {
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var v0 = goog.vec.Vec4.createFloat32FromArray([1, 2, 3, 4]);
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assertEquals(Math.sqrt(30), goog.vec.Vec4.magnitude(v0));
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}
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function testNormalize() {
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var v0 = goog.vec.Vec4.createFloat32FromArray([2, 3, 4, 5]);
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var v1 = goog.vec.Vec4.createFloat32();
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var v2 = goog.vec.Vec4.createFloat32();
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goog.vec.Vec4.scale(v0, 1 / goog.vec.Vec4.magnitude(v0), v2);
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goog.vec.Vec4.normalize(v0, v1);
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assertElementsEquals(v2, v1);
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assertElementsEquals([2, 3, 4, 5], v0);
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goog.vec.Vec4.setFromArray(v1, v0);
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goog.vec.Vec4.normalize(v1, v1);
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assertElementsEquals(v2, v1);
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}
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function testDot() {
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var v0 = goog.vec.Vec4.createFloat32FromArray([1, 2, 3, 4]);
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var v1 = goog.vec.Vec4.createFloat32FromArray([5, 6, 7, 8]);
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assertEquals(70, goog.vec.Vec4.dot(v0, v1));
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assertEquals(70, goog.vec.Vec4.dot(v1, v0));
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}
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function testLerp() {
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var v0 = goog.vec.Vec4.createFloat32FromValues(1, 2, 3, 4);
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var v1 = goog.vec.Vec4.createFloat32FromValues(10, 20, 30, 40);
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var v2 = goog.vec.Vec4.cloneFloat32(v0);
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goog.vec.Vec4.lerp(v2, v1, 0, v2);
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assertElementsEquals([1, 2, 3, 4], v2);
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goog.vec.Vec4.lerp(v2, v1, 1, v2);
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assertElementsEquals([10, 20, 30, 40], v2);
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goog.vec.Vec4.lerp(v0, v1, .5, v2);
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assertElementsEquals([5.5, 11, 16.5, 22], v2);
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}
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function testMax() {
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var v0 = goog.vec.Vec4.createFloat32FromValues(10, 20, 30, 40);
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var v1 = goog.vec.Vec4.createFloat32FromValues(5, 25, 35, 30);
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var v2 = goog.vec.Vec4.createFloat32();
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goog.vec.Vec4.max(v0, v1, v2);
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assertElementsEquals([10, 25, 35, 40], v2);
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goog.vec.Vec4.max(v1, v0, v1);
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assertElementsEquals([10, 25, 35, 40], v1);
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goog.vec.Vec4.max(v2, 20, v2);
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assertElementsEquals([20, 25, 35, 40], v2);
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}
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function testMin() {
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var v0 = goog.vec.Vec4.createFloat32FromValues(10, 20, 30, 40);
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var v1 = goog.vec.Vec4.createFloat32FromValues(5, 25, 35, 30);
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var v2 = goog.vec.Vec4.createFloat32();
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goog.vec.Vec4.min(v0, v1, v2);
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assertElementsEquals([5, 20, 30, 30], v2);
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goog.vec.Vec4.min(v1, v0, v1);
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assertElementsEquals([5, 20, 30, 30], v1);
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goog.vec.Vec4.min(v2, 20, v2);
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assertElementsEquals([5, 20, 20, 20], v2);
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}
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function testEquals() {
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var v0 = goog.vec.Vec4.createFloat32FromValues(1, 2, 3, 4);
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var v1 = goog.vec.Vec4.cloneFloat32(v0);
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assertElementsEquals(v0, v1);
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v1[0] = 5;
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assertFalse(goog.vec.Vec4.equals(v0, v1));
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v1 = goog.vec.Vec4.cloneFloat32(v0);
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v1[1] = 5;
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assertFalse(goog.vec.Vec4.equals(v0, v1));
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v1 = goog.vec.Vec4.cloneFloat32(v0);
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v1[2] = 5;
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assertFalse(goog.vec.Vec4.equals(v0, v1));
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v1 = goog.vec.Vec4.cloneFloat32(v0);
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v1[3] = 5;
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assertFalse(goog.vec.Vec4.equals(v0, v1));
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}
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</script>
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</body>
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