/// <summary>
/// ProcessMovement, overide method, determines item movement.
/// </summary>
public override void ProcessMovement()
{
if (_itemType == ItemType.Star)
{
_vectorMovement.Step();
_vectorMovement.SetDirection(GameObjects.Player.X, GameObjects.Player.Y, X, Y);
X += _vectorMovement.DeltaX;
Y += _vectorMovement.DeltaY;
foreach (HitBox hitBox in HitBoxes)
{
hitBox.X += _vectorMovement.DeltaX;
hitBox.Y += _vectorMovement.DeltaY;
}
}
else
{
_gravMovement.Step();
X += _gravMovement.DeltaX;
Y += _gravMovement.DeltaY;
foreach (HitBox hitBox in HitBoxes)
{
hitBox.X += _gravMovement.DeltaX;
hitBox.Y += _gravMovement.DeltaY;
}
}
}
/// <summary>
/// ProcessMovement Method, steps items through their movement patterns
/// </summary>
public override void ProcessMovement()
{
switch (_flag)
{
case true:
_flagMovement.Step();
_flagMovement.SetDirection(GameObjects.Player.Position, this.Position);
X += _flagMovement.DeltaX;
Y += _flagMovement.DeltaY;
foreach (Bounding hitBox in Hitboxes)
{
hitBox.Offset(_flagMovement.Delta);
}
break;
case false:
_movement.Step();
X += _movement.DeltaX;
Y += _movement.DeltaY;
foreach (Bounding hitBox in Hitboxes)
{
hitBox.Offset(_movement.Delta);
}
break;
}
}
public void TestGravitationalMovement()
{
//inital delta = 0, acceleration = 1 unit/tick^2, terminal velosity = 10 units/tick
Movement testMovement = new GravitationalMovement(0.0, 0.0, 1.0, 0.0, 10.0, 0.0);
testMovement.Step();
double x = 0;
double y = 0;
double[] expectedX = new double[] { 2.0, 5.0, 9.0, 14.0, 20.0, 27.0, 35.0, 44.0, 54.0, 64.0 };
double[] expectedY = new double[] { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 };
for (int i = 0; i < 10; i++)
{
testMovement.Step();
x += testMovement.DeltaX;
y += testMovement.DeltaY;
Assert.AreEqual(expectedX[i], x, "failure with x on iteration " + i);
Assert.AreEqual(expectedY[i], y, "failure with y on iteration " + i);
}
}
public void TestGravitationalMovement()
{
//inital delta = 0, acceleration = 1 unit/tick^2, terminal velosity = 10 units/tick
Movement testMovement = new GravitationalMovement(0.0, 0.0, 1.0, 0.0, 10.0, 0.0);
testMovement.Step();
double x = 0;
double y = 0;
double[] expectedX = new double[] { 2.0, 5.0, 9.0, 14.0, 20.0, 27.0, 35.0, 44.0, 54.0, 64.0 };
double[] expectedY = new double[] { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 };
for (int i = 0; i < 10; i++)
{
testMovement.Step();
x += testMovement.DeltaX;
y += testMovement.DeltaY;
Assert.AreEqual(expectedX[i], x, "failure with x on iteration " + i);
Assert.AreEqual(expectedY[i], y, "failure with y on iteration " + i);
}
}
public void TestGravitationalMovement()
{
Acceleration2D testAcceleration = new Acceleration2D(new Vector2D(5.0, 0.0), 200.0);
Velocity2D testVelosity = new Velocity2D(5.0, 36.86989764584402);
Movement testMovement = new GravitationalMovement(testVelosity, testAcceleration);
Point2D testPoint = new Point2D(0.0, 0.0);
double[] expectedX = new double[] { 8.0, 20.0, 36.0, 56.0, 80.0, 108.0, 140.0, 176.0, 216.0, 260.0 };
double[] expectedY = new double[] { 6.0, 15.0, 27.0, 42.0, 60.0, 81.0, 105.0, 132.0, 162.0, 195.0 };
for (int i = 0; i < 10; i++)
{
testMovement.Step();
testPoint.X += testMovement.DeltaX;
testPoint.Y += testMovement.DeltaY;
Assert.AreEqual(expectedX[i], testPoint.X, "failure with x on iteration " + i);
Assert.AreEqual(expectedY[i], testPoint.Y, "failure with y on iteration " + i);
}
}
public void TestGravitationalMovement()
{
Acceleration2D testAcceleration = new Acceleration2D(new Vector2D(5.0, 0.0), 200.0);
Velocity2D testVelosity = new Velocity2D(5.0, 36.86989764584402);
Movement testMovement = new GravitationalMovement(testVelosity, testAcceleration);
Point2D testPoint = new Point2D(0.0, 0.0);
double[] expectedX = new double[] { 8.0, 20.0, 36.0, 56.0, 80.0, 108.0, 140.0, 176.0, 216.0, 260.0 };
double[] expectedY = new double[] { 6.0, 15.0, 27.0, 42.0, 60.0, 81.0, 105.0, 132.0, 162.0, 195.0 };
for (int i = 0; i < 10; i++)
{
testMovement.Step();
testPoint.X += testMovement.DeltaX;
testPoint.Y += testMovement.DeltaY;
Assert.AreEqual(expectedX[i], testPoint.X, "failure with x on iteration " + i);
Assert.AreEqual(expectedY[i], testPoint.Y, "failure with y on iteration " + i);
}
}
