/// <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)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
MouseState mouse = Mouse.GetState();
if (mouse.LeftButton == ButtonState.Pressed && lastMouse.LeftButton == ButtonState.Released)
{
world.Insert(ShapePrimitives.BezelRectangle(new Vector2(mouse.X, mouse.Y), new Vector2(mouse.X + 20, mouse.Y + 20), 5));
}
lastMouse = mouse;
float deltaTime = (float)gameTime.ElapsedGameTime.TotalSeconds;
KeyboardState ks = Keyboard.GetState();
Vector2 velocity = Vector2.Zero;
float speed = 90; // a link to the past link moves at 90 pixels per second!
if (ks.IsKeyDown(Keys.W))
{
velocity += new Vector2(0, -speed * deltaTime);
}
if (ks.IsKeyDown(Keys.S))
{
velocity += new Vector2(0, speed * deltaTime);
}
if (ks.IsKeyDown(Keys.A))
{
velocity += new Vector2(-speed * deltaTime, 0);
}
if (ks.IsKeyDown(Keys.D))
{
velocity += new Vector2(speed * deltaTime, 0);
}
world.ClearDebugTag();
List <Polygon> polys = world.Retrieve(new RectangleF(poly1.Origin.X + poly1.BoundingBox.Left, poly1.Origin.Y + poly1.BoundingBox.Top, poly1.BoundingBox.Width, poly1.BoundingBox.Height));
foreach (IPolygon poly in polys)
{
poly.AddTag("debug");
}
Window.Title = polys.Count.ToString();
poly1.Move(polys, velocity);
base.Update(gameTime);
}
