public void UniformlyAcceleratedMotionTest()
{
Random random = new Random();
TimeSpan delta = new TimeSpan(1);
for (int i = 0; i < 1000; i++)
{
Vector2 acceleration = new Vector2(-random.Next(10, 100), 0);
PhysicScript physic = new PhysicScript(
Vector2.Zero, acceleration);
int moving = random.Next(100, 1000);
GameObject go = new GameObject(
null, new Vector2(moving, 0),
Vector2.Zero, Vector2.One, 0);
go.AddScript(physic);
int time = (int)Math.Ceiling(
Math.Sqrt(-2 * moving / acceleration.X));
for (int j = 0; j <= time; j++)
{
go.Update(delta);
}
Transform transform = go.GetComponent("transform") as Transform;
Assert.IsTrue(transform.Position.X <= 0);
Assert.AreEqual(0, transform.Position.Y);
}
}
public void FallingWithStartSpeedTest()
{
Random random = new Random();
TimeSpan delta = new TimeSpan(1);
for (int i = 0; i < 1000; i++)
{
Vector2 speed = new Vector2(random.Next(10, 100), 0);
Vector2 gravity = new Vector2(0, -random.Next(10, 100));
PhysicScript physic = new PhysicScript(
speed, gravity);
int height = random.Next(100, 1000);
GameObject go = new GameObject(
null, new Vector2(0, height),
Vector2.Zero, Vector2.One, 0);
go.AddScript(physic);
int time = (int)Math.Ceiling(
Math.Sqrt(-2 * height / gravity.Y)) + 1;
for (int j = 0; j < time; j++)
{
go.Update(delta);
}
Transform transform = go.GetComponent("transform") as Transform;
int expected = (int)speed.X * time;
Assert.IsTrue(transform.Position.Y <= 0);
Assert.AreEqual(expected, transform.Position.X);
}
}
