/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
public void UpdateGame()
{
#region select which primitive to work on
if (InputWrapper.Buttons.A == ButtonState.Pressed)
{
mWorkPrim = mBall;
}
else if (InputWrapper.Buttons.B == ButtonState.Pressed)
{
mWorkPrim = mUWBLogo;
}
#endregion select which primitive to work on
#region update the work primitive
float rotation = 0;
if (InputWrapper.Buttons.X == ButtonState.Pressed)
{
rotation = MathHelper.ToRadians(1f); //1 degree pre-press
}
if (InputWrapper.Buttons.Y == ButtonState.Pressed)
{
rotation = MathHelper.ToRadians(-1f); //1 degree pre-press
}
mWorkPrim.Update(InputWrapper.ThumbSticks.Left, InputWrapper.ThumbSticks.Right, rotation);
#endregion
}
/// <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 (InputWrapper.Buttons.Back == ButtonState.Pressed)
{
this.Exit();
}
#region Control the UWB Logo position with left thumb stick
mUWBLogo.Update(InputWrapper.ThumbSticks.Left, Vector2.Zero);
#endregion
#region Let the SoccerBall update itself, and let user control its size with the right thumb stick
mBall.Update();
mBall.Update(Vector2.Zero, InputWrapper.ThumbSticks.Right);
if (InputWrapper.Buttons.A == ButtonState.Pressed)
{
mBall = new SoccerBall(mSoccerPosition, mSoccerBallRadius * 2f);
}
#endregion
base.Update(gameTime);
}
/// <summary>
/// Update game sate:
/// 1. Tell all Gameobjects to update themselves
/// 2. Cause (call) all intractable objects to interact
/// </summary>
/// <param name="gameTime"></param>
public void UpdateGame(GameTime gameTime)
{
#region Step a.
if (null != mFinal) // done!!
{
return;
}
#endregion
#region Step b. go through all game object and tell each to update themselves
// hero movement: right thumb stick
mHero.Update(InputWrapper.ThumbSticks.Right);
// Basketball ...
for (int b = mBBallList.Count - 1; b >= 0; b--)
{
if (mBBallList[b].UpdateAndExplode())
{
mBBallList.RemoveAt(b);
mBBallMissed++;
mScore += kBballMissedScore;
}
}
#endregion
#region Step c. Call GameObject interaction functions to cause interaction between game objects
/// Notice we could have integrated the following loop into the above for-loop.
/// In this implementation we separated out the following loop to highlight the
/// fact that, Hero->Ball interaction is inter-gameObject interaction and
/// this happened separately from individual updates of game objects.
for (int b = mBBallList.Count - 1; b >= 0; b--)
{
if (mHero.PrimitivesTouches(mBBallList[b]))
{
mBBallList.RemoveAt(b);
mBBallHit++;
mScore += kBballTouchScore;
}
}
#endregion
#region Step d. final checking of game winning
// Check for new basketball condition
TimeSpan timePassed = gameTime.TotalGameTime;
timePassed = timePassed.Subtract(mCreationTimeStamp);
if (timePassed.TotalMilliseconds > kBballMSecInterval)
{
mCreationTimeStamp = gameTime.TotalGameTime;
BasketBall b = new BasketBall();
mTotalBBallCreated++;
mBBallList.Add(b);
}
#endregion
#region Step e.
// Check for winning condition ...
if (mScore > kWinScore)
{
mFinal = new TexturedPrimitive("Winner", new Vector2(75, 50), new Vector2(30, 20));
}
else if (mScore < kLossScore)
{
mFinal = new TexturedPrimitive("Loser", new Vector2(75, 50), new Vector2(30, 20));
}
#endregion
}