public void Vector2NormalizeTest1()
{
Vector2 a = new Vector2(); // no parameter, default to 0.0f
Vector2 actual = Vector2.Normalize(a);
Assert.True(Single.IsNaN(actual.X) && Single.IsNaN(actual.Y), "Vector2f.Normalize did not return the expected value.");
}
public void Vector2NormalizeTest2()
{
Vector2 a = new Vector2(Single.MaxValue, Single.MaxValue);
Vector2 actual = Vector2.Normalize(a);
Vector2 expected = new Vector2(0, 0);
Assert.Equal(expected, actual);
}
public void Vector2NormalizeTest()
{
Vector2 a = new Vector2(2.0f, 3.0f);
Vector2 expected = new Vector2(0.554700196225229122018341733457f, 0.8320502943378436830275126001855f);
Vector2 actual;
actual = Vector2.Normalize(a);
Assert.True(MathHelper.Equal(expected, actual), "Vector2f.Normalize did not return the expected value.");
}
public static Vector2 NormalizeJitOptimizeCanaryTest()
{
var result = VectorTests.Vector2Value;
for (var iteration = 0; iteration < Benchmark.InnerIterationCount; iteration++)
{
result += Vector2.Normalize(result);
}
return(result);
}
public void Vector2ReflectTest2()
{
Vector2 n = new Vector2(0.45f, 1.28f);
n = Vector2.Normalize(n);
Vector2 a = -n;
Vector2 expected = n;
Vector2 actual = Vector2.Reflect(a, n);
Assert.True(MathHelper.Equal(expected, actual), "Vector2f.Reflect did not return the expected value.");
}
public static Vector2 NormalizeTest()
{
var result = VectorTests.Vector2Value;
for (var iteration = 0; iteration < Benchmark.InnerIterationCount; iteration++)
{
// The inputs aren't being changed and the output is being reset with each iteration, so a future
// optimization could potentially throw away everything except for the final call. This would break
// the perf test. The JitOptimizeCanary code below does modify the inputs and consume each output.
result = Vector2.Normalize(result);
}
return(result);
}
public void Vector2ReflectTest()
{
Vector2 a = Vector2.Normalize(new Vector2(1.0f, 1.0f));
// Reflect on XZ plane.
Vector2 n = new Vector2(0.0f, 1.0f);
Vector2 expected = new Vector2(a.X, -a.Y);
Vector2 actual = Vector2.Reflect(a, n);
Assert.True(MathHelper.Equal(expected, actual), "Vector2f.Reflect did not return the expected value.");
// Reflect on XY plane.
n = new Vector2(0.0f, 0.0f);
expected = new Vector2(a.X, a.Y);
actual = Vector2.Reflect(a, n);
Assert.True(MathHelper.Equal(expected, actual), "Vector2f.Reflect did not return the expected value.");
// Reflect on YZ plane.
n = new Vector2(1.0f, 0.0f);
expected = new Vector2(-a.X, a.Y);
actual = Vector2.Reflect(a, n);
Assert.True(MathHelper.Equal(expected, actual), "Vector2f.Reflect did not return the expected value.");
}
internal PrismaticJoint(PrismaticJointDef def) : base(def)
{
LocalAnchorA = def.LocalAnchorA;
LocalAnchorB = def.LocalAnchorB;
LocalXAxisA = def.LocalAxisA;
LocalXAxisA.Normalize();
_localYAxisA = MathUtils.Cross(1.0f, LocalXAxisA);
ReferenceAngle = def.ReferenceAngle;
_impulse.SetZero();
_motorMass = 0.0f;
_motorImpulse = 0.0f;
_lowerTranslation = def.LowerTranslation;
_upperTranslation = def.UpperTranslation;
_maxMotorForce = def.MaxMotorForce;
_motorSpeed = def.MotorSpeed;
_enableLimit = def.EnableLimit;
_enableMotor = def.EnableMotor;
_limitState = LimitState.InactiveLimit;
_axis.SetZero();
_perp.SetZero();
}
