browser/devtools/tilt/test/browser_tilt_math02.js

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/browser/devtools/tilt/test/browser_tilt_math02.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,104 @@
     1.4 +/* Any copyright is dedicated to the Public Domain.
     1.5 +   http://creativecommons.org/publicdomain/zero/1.0/ */
     1.6 +"use strict";
     1.7 +
     1.8 +function test() {
     1.9 +  let v1 = vec3.create();
    1.10 +
    1.11 +  ok(v1, "Should have created a vector with vec3.create().");
    1.12 +  is(v1.length, 3, "A vec3 should have 3 elements.");
    1.13 +
    1.14 +  ok(isApproxVec(v1, [0, 0, 0]),
    1.15 +    "When created, a vec3 should have the values default to 0.");
    1.16 +
    1.17 +  vec3.set([1, 2, 3], v1);
    1.18 +  ok(isApproxVec(v1, [1, 2, 3]),
    1.19 +    "The vec3.set() function didn't set the values correctly.");
    1.20 +
    1.21 +  vec3.zero(v1);
    1.22 +  ok(isApproxVec(v1, [0, 0, 0]),
    1.23 +    "The vec3.zero() function didn't set the values correctly.");
    1.24 +
    1.25 +  let v2 = vec3.create([4, 5, 6]);
    1.26 +  ok(isApproxVec(v2, [4, 5, 6]),
    1.27 +    "When cloning arrays, a vec3 should have the values copied.");
    1.28 +
    1.29 +  let v3 = vec3.create(v2);
    1.30 +  ok(isApproxVec(v3, [4, 5, 6]),
    1.31 +    "When cloning vectors, a vec3 should have the values copied.");
    1.32 +
    1.33 +  vec3.add(v2, v3);
    1.34 +  ok(isApproxVec(v2, [8, 10, 12]),
    1.35 +    "The vec3.add() function didn't set the x value correctly.");
    1.36 +
    1.37 +  vec3.subtract(v2, v3);
    1.38 +  ok(isApproxVec(v2, [4, 5, 6]),
    1.39 +    "The vec3.subtract() function didn't set the values correctly.");
    1.40 +
    1.41 +  vec3.negate(v2);
    1.42 +  ok(isApproxVec(v2, [-4, -5, -6]),
    1.43 +    "The vec3.negate() function didn't set the values correctly.");
    1.44 +
    1.45 +  vec3.scale(v2, -2);
    1.46 +  ok(isApproxVec(v2, [8, 10, 12]),
    1.47 +    "The vec3.scale() function didn't set the values correctly.");
    1.48 +
    1.49 +  vec3.normalize(v1);
    1.50 +  ok(isApproxVec(v1, [0, 0, 0]),
    1.51 +    "Normalizing a vector with zero length should return [0, 0, 0].");
    1.52 +
    1.53 +  vec3.normalize(v2);
    1.54 +  ok(isApproxVec(v2, [
    1.55 +    0.4558423161506653, 0.5698028802871704, 0.6837634444236755
    1.56 +  ]), "The vec3.normalize() function didn't set the values correctly.");
    1.57 +
    1.58 +  vec3.cross(v2, v3);
    1.59 +  ok(isApproxVec(v2, [
    1.60 +    5.960464477539063e-8, -1.1920928955078125e-7, 5.960464477539063e-8
    1.61 +  ]), "The vec3.cross() function didn't set the values correctly.");
    1.62 +
    1.63 +  vec3.dot(v2, v3);
    1.64 +  ok(isApproxVec(v2, [
    1.65 +    5.960464477539063e-8, -1.1920928955078125e-7, 5.960464477539063e-8
    1.66 +  ]), "The vec3.dot() function didn't set the values correctly.");
    1.67 +
    1.68 +  ok(isApproxVec([vec3.length(v2)], [1.4600096599955427e-7]),
    1.69 +    "The vec3.length() function didn't calculate the value correctly.");
    1.70 +
    1.71 +  vec3.direction(v2, v3);
    1.72 +  ok(isApproxVec(v2, [
    1.73 +    -0.4558422863483429, -0.5698028802871704, -0.6837634444236755
    1.74 +  ]), "The vec3.direction() function didn't set the values correctly.");
    1.75 +
    1.76 +  vec3.lerp(v2, v3, 0.5);
    1.77 +  ok(isApproxVec(v2, [
    1.78 +    1.7720788717269897, 2.2150986194610596, 2.65811824798584
    1.79 +  ]), "The vec3.lerp() function didn't set the values correctly.");
    1.80 +
    1.81 +
    1.82 +  vec3.project([100, 100, 10], [0, 0, 100, 100],
    1.83 +    mat4.create(), mat4.perspective(45, 1, 0.1, 100), v1);
    1.84 +  ok(isApproxVec(v1, [-1157.10693359375, 1257.10693359375, 0]),
    1.85 +    "The vec3.project() function didn't set the values correctly.");
    1.86 +
    1.87 +  vec3.unproject([100, 100, 1], [0, 0, 100, 100],
    1.88 +    mat4.create(), mat4.perspective(45, 1, 0.1, 100), v1);
    1.89 +  ok(isApproxVec(v1, [
    1.90 +    41.420406341552734, -41.420406341552734, -99.99771118164062
    1.91 +  ]), "The vec3.project() function didn't set the values correctly.");
    1.92 +
    1.93 +
    1.94 +  let ray = vec3.createRay([10, 10, 0], [100, 100, 1], [0, 0, 100, 100],
    1.95 +    mat4.create(), mat4.perspective(45, 1, 0.1, 100));
    1.96 +
    1.97 +  ok(isApproxVec(ray.origin, [
    1.98 +    -0.03313708305358887, 0.03313708305358887, -0.1000000014901161
    1.99 +  ]), "The vec3.createRay() function didn't create the position correctly.");
   1.100 +  ok(isApproxVec(ray.direction, [
   1.101 +    0.35788586614428364, -0.35788586614428364, -0.862458934459091
   1.102 +  ]), "The vec3.createRay() function didn't create the direction correctly.");
   1.103 +
   1.104 +
   1.105 +  is(vec3.str([0, 0, 0]), "[0, 0, 0]",
   1.106 +    "The vec3.str() function didn't work properly.");
   1.107 +}

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