/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
this.Exit();
KeyboardState state = Keyboard.GetState();
if (state.IsKeyDown(Keys.D1)) {
x -= .1f;
} else if (state.IsKeyDown(Keys.D2)) {
x += .1f;
} else if (state.IsKeyDown(Keys.D3)) {
y -= .1f;
} else if (state.IsKeyDown(Keys.D4)) {
y += .1f;
} else if (state.IsKeyDown(Keys.D5)) {
z -= .1f;
} else if (state.IsKeyDown(Keys.D6)) {
z += .1f;
} else if (state.IsKeyDown(Keys.Up)) {
magnitude += .05f;
if (magnitude > 30) {
magnitude = 30;
}
} else if (state.IsKeyDown(Keys.Down)) {
magnitude -= .05f;
if (magnitude < 5) {
magnitude = 5;
}
} else if (state.IsKeyDown(Keys.Left)) {
angle += .02f;
if (angle > Math.PI / 2) {
angle = (float)Math.PI / 2;
}
} else if (state.IsKeyDown(Keys.Right)) {
angle -= .02f;
if (angle < 0) {
angle = 0;
}
}
if (prevState.IsKeyUp(Keys.Space) && state.IsKeyDown(Keys.Space)) {
Model cubeMode = Content.Load<Model>("sphere");
Body body = new Body(this, cubeMode, toggle ? new Vector3(1, 0, 0) : new Vector3(0, 0, 1), "sphere");
body.SetWorld(new Vector3(0, 0, -9));
toggle = !toggle;
float yMag = (float) Math.Sin(angle) * magnitude;
float zMag = (float) Math.Cos(angle) * magnitude;
body.SetVelocity(new Vector3(0, yMag, zMag), Vector3.Zero);
for (int i = 0; i < body.Skin.Count; i++) {
body.Skin.SetMaterial(body.Skin[i], new Material(.5f, 1f));
}
physicsManager.Add(body);
bodies.Add(body);
}
prevState = state;
base.Update(gameTime);
}
