/// <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();
}
bgScroll.Update(gameTime);
bgScroll2.Update(gameTime);
if (gameState == GameState.Menu)
{
textCounter--;
if (textCounter <= 0)
{
textCounter = MaxRespawnCounter;
textEnable = !textEnable;
}
if (InputHandler.IsKeyPressed(Keys.Space))
{
gameState = GameState.Play;
}
}
else if (gameState == GameState.Play)
{
if (ship.IsDead)
{
respawnCounter--;
if (respawnCounter < 0)
{
ship.Center = new Vector2(Width / 2, Height / 2);
ship.Velocity = Vector2.Zero;
ship.IsDead = false;
}
}
else
{
if (InputHandler.IsKeyDown(Keys.Left))
{
ship.Rotation -= 0.05f;
}
if (InputHandler.IsKeyDown(Keys.Right))
{
ship.Rotation += 0.05f;
}
ship.Thrust = InputHandler.IsKeyDown(Keys.Up);
if (InputHandler.IsKeyDown(Keys.LeftControl))
{
ShotManager.AddShot(ship.Center + ship.Heading * ship.Radius, ship.Heading * 3);
}
}
ship.Update(gameTime);
CollisionDetection();
ShotManager.Update(gameTime);
AsteroidsManager.Update(gameTime);
ExplosionsManager.Update(gameTime);
}
base.Update(gameTime);
}
public static void Update(GameTime gameTime)
{
float elapsed = (float)gameTime.ElapsedGameTime.TotalSeconds;
KeyboardState keyState = Keyboard.GetState();
MouseState mouseState = Mouse.GetState();
GamePadState padState = GamePad.GetState(PlayerIndex.One);
switch (AsteroidsGame.ControlStyle)
{
case ControlStyles.KBM_RH:
{
shipSprite.Velocity = Vector2.Zero;
// Movement
if (keyState.IsKeyDown(Keys.W))
{
shipSprite.Velocity += new Vector2(0, -1);
}
if (keyState.IsKeyDown(Keys.S))
{
shipSprite.Velocity += new Vector2(0, 1);
}
if (keyState.IsKeyDown(Keys.A))
{
shipSprite.Velocity += new Vector2(-1, 0);
}
if (keyState.IsKeyDown(Keys.D))
{
shipSprite.Velocity += new Vector2(1, 0);
}
shipSprite.Velocity.Normalize();
shipSprite.Velocity *= playerSpeed;
fireShotsMouse(mouseState, elapsed);
pointToMouseCursor(mouseState);
}
break;
case ControlStyles.KBM_LH:
{
shipSprite.Velocity = Vector2.Zero;
// Movement
if (keyState.IsKeyDown(Keys.O))
{
shipSprite.Velocity += new Vector2(0, -1);
}
if (keyState.IsKeyDown(Keys.L))
{
shipSprite.Velocity += new Vector2(0, 1);
}
if (keyState.IsKeyDown(Keys.K))
{
shipSprite.Velocity += new Vector2(-1, 0);
}
if (keyState.IsKeyDown(Keys.OemSemicolon))
{
shipSprite.Velocity += new Vector2(1, 0);
}
shipSprite.Velocity.Normalize();
shipSprite.Velocity *= playerSpeed;
fireShotsMouse(mouseState, elapsed);
pointToMouseCursor(mouseState);
}
break;
case ControlStyles.GamePad:
{
shipSprite.Velocity = Vector2.Zero;
shipSprite.Velocity = new Vector2(
padState.ThumbSticks.Left.X,
-padState.ThumbSticks.Left.Y);
shipSprite.Velocity.Normalize();
shipSprite.Velocity *= playerSpeed;
fireShotsGamePad(padState, elapsed);
shipSprite.RotateTo(new Vector2(
padState.ThumbSticks.Right.X,
padState.ThumbSticks.Right.Y) - shipSprite.Position);
}
break;
}
imposeMovementLimits();
shipSprite.Update(gameTime);
shotManager.Update(gameTime);
}
