protected override void Initialize()
{
base.Initialize();
MenuScene();
gs = GameState.Menu;
er = EnterReleased.Yes;
}
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
{
this.Exit();
}
KeyboardState ks = Keyboard.GetState();
//if quiz is in progress, update timer and its location constantly
// (transition - pause between questions)
if (gs == GameState.Quiz || gs == GameState.Transition)
{
quiz.Duration -= (float)gameTime.ElapsedGameTime.TotalSeconds;
quiz.ScorePosition = new Vector2(WINDOWWIDTH -
spriteFont.MeasureString(quiz.Score.ToString() + " ").X, 0);
}
//counts milliseconds during transition (between questions)
if (gs == GameState.Transition)
{
quiz.Timer -= (float)gameTime.ElapsedGameTime.TotalMilliseconds;
}
//if quiz is in progress
if (gs == GameState.Quiz)
{
if (ks.IsKeyDown(Keys.Left)) //if left arrow key pressed
{
if (choose == Choose.Left)
{
quiz.Score += ONESCORE; //update score (+)
quiz.HiColor1 = Color.LimeGreen; //highlight correct flag
quiz.ScoreColor = Color.LimeGreen; //highlight score
quiz.Correct++; //update correct answer count
correct.Play(); //play correct sound
}
else
{
quiz.Score -= ONESCORE; //update score (-)
quiz.HiColor1 = Color.OrangeRed; //highlight incorrect flag
quiz.ScoreColor = Color.OrangeRed; //highlight score
quiz.Incorrect++; //update incorrect answer count
incorrect.Play(); //play incorrect sound
}
gs = GameState.Transition; //enter transition (pause between questions)
quiz.Timer = TIMER; //set transition timer
}
if (ks.IsKeyDown(Keys.Right)) //if right arrow key pressed
{
if (choose == Choose.Right)
{
quiz.Score += ONESCORE; //update score (+)
quiz.HiColor2 = Color.LimeGreen; //highlight correct flag
quiz.ScoreColor = Color.LimeGreen; //highlight score
quiz.Correct++; //update correct answer count
correct.Play(); //play correct sound
}
else
{
quiz.Score -= ONESCORE; //update score (-)
quiz.HiColor2 = Color.OrangeRed; //highlight incorrect flag
quiz.ScoreColor = Color.OrangeRed; //highlight score
quiz.Incorrect++; //update incorrect answer count
incorrect.Play(); //play incorrect sound
}
gs = GameState.Transition; //enter transition (pause between questions)
quiz.Timer = TIMER; //set transition timer
}
}
// if gamestate set to menu, show it
if (gs == GameState.Menu)
{
ShowMenu();
}
// if quiz/transition (pause between questions) in progress and time is up,
// show results (score, correct, incorrect) and play sound
if ((gs == GameState.Quiz || gs == GameState.Transition) && quiz.Duration <= 0)
{
ShowResult();
select.Play();
}
//if results screen is up
if (gs == GameState.Result)
{
//make navigation selection for play again
if (result.Index == 0 && ks.IsKeyDown(Keys.Enter))
{
StartQuiz();
select.Play();
}
//make navigation selection for go to menu
if (result.Index == 1 && ks.IsKeyDown(Keys.Enter))
{
ShowMenu();
select.Play();
er = EnterReleased.No; //set er to No until Enter key is released
}
}
// if help / how to play / about screen is up
if (gs == GameState.Help || gs == GameState.HowToPlay || gs == GameState.About)
{
if (ks.IsKeyUp(Keys.Enter)) //as Enter key is released, set er so
{
er = EnterReleased.Yes;
}
//make navigation selection for go to menu
if (er == EnterReleased.Yes && ks.IsKeyDown(Keys.Enter))
{
ShowMenu();
select.Play();
er = EnterReleased.No; //set er to No until Enter key is released
}
}
// if main menu screen is up
if (gs == GameState.Menu)
{
if (ks.IsKeyUp(Keys.Enter))
{
er = EnterReleased.Yes;//as Enter key is released, set er so
}
//make navigation selection for play (start quiz)
if (menu.Index == 0 && er == EnterReleased.Yes && ks.IsKeyDown(Keys.Enter))
{
StartQuiz();
select.Play();
}
//make navigation selection for show help
if (menu.Index == 1 && er == EnterReleased.Yes && ks.IsKeyDown(Keys.Enter))
{
ShowHelp();
select.Play();
er = EnterReleased.No; //set er to No until Enter key is released
}
//make navigation selection for show how to play
if (menu.Index == 2 && er == EnterReleased.Yes && ks.IsKeyDown(Keys.Enter))
{
ShowHowToPlay();
select.Play();
er = EnterReleased.No; //set er to No until Enter key is released
}
//make navigation selection for about info
if (menu.Index == 3 && er == EnterReleased.Yes && ks.IsKeyDown(Keys.Enter))
{
ShowAbout();
select.Play();
er = EnterReleased.No; //set er to No until Enter key is released
}
//make navigation selection for application exit
if (menu.Index == 4 && ks.IsKeyDown(Keys.Enter))
{
this.Exit();
}
}
//if game is in transition state (pause between questions), or it's the first
// question in quiz
if ((gs == GameState.Transition && quiz.Timer <= 0) || gs == GameState.QuizFirst)
{
int country1 = r.Next(0, countries.Count()); //left flag randomized
int country2 = country1; //right flag equals to left flag
// while right flag equals to left flag, randomize right flag to it doesn't
while (country2 == country1)
{
country2 = r.Next(0, countries.Count());
}
int select = r.Next(0, 2); //make a random choice between left and right flag
int chooseText; //to remember ID (int) of the random choice above
//set global 'choose' in accordance with randomized choice (left/right),
// as well as the ID ('chooseText') to draw the flag
if (select == 0)
{
choose = Choose.Left; chooseText = country1;
}
else
{
choose = Choose.Right; chooseText = country2;
}
//locations of rectangles of left and right flags are set
quiz.Rect1 = new Rectangle(countries[country1].X, countries[country1].Y, FLAGWIDTH, FLAGHEIGHT);
quiz.Rect2 = new Rectangle(countries[country2].X, countries[country2].Y, FLAGWIDTH, FLAGHEIGHT);
//set country name text (seen under the two flags on the quiz screen)
quiz.Text = countries[chooseText].Name;
Vector2 countryTextDim = spriteFont.MeasureString(quiz.Text);
double countryTextPosX = graphics.PreferredBackBufferWidth / 2 - countryTextDim.X / 2;
quiz.TextPosition = new Vector2(Convert.ToInt32(countryTextPosX), COUNTRYTEXTY);
//highlight for left and right flags is to default; score text colour to white
quiz.HiColor1 = Color.DarkGray;
quiz.HiColor2 = Color.DarkGray;
quiz.ScoreColor = Color.White;
gs = GameState.Quiz; //enter quiz game state
}
base.Update(gameTime);
}
protected override void Update(GameTime gameTime)
{
KeyboardState ks = Keyboard.GetState();
// Always
snowPosition1 += snowSpeed;
snowPosition2 += snowSpeed;
if (snowPosition1.Y > WINDOWHEIGHT)
{
snowPosition1.Y = snowPosition2.Y - snowTex.Height;
}
if (snowPosition2.Y > WINDOWHEIGHT)
{
snowPosition2.Y = snowPosition1.Y - snowTex.Height;
}
// Running / Pause
if (gs == GameState.Running || gs == GameState.Pause)
{
if (ks.IsKeyDown(Keys.Left))
{
paddle.X -= PADDLEPSPEED;
if (paddle.X <= 0)
{
paddle.X = 0;
}
}
if (ks.IsKeyDown(Keys.Right))
{
paddle.X += PADDLEPSPEED;
if (paddle.X > WINDOWWIDTH - paddle.Width)
{
paddle.X = WINDOWWIDTH - paddle.Width;
}
}
if (blocks.Count() == 0)
{
EndScene();
gs = GameState.Over;
endScene.Score = score;
endScene.LifeBonus = lifes * LIFEBONUS;
return;
}
if (lifes == 0)
{
EndScene();
gs = GameState.Over;
endScene.Score = score;
endScene.LifeBonus = lifes;
lifes = MAXLIFES;
return;
}
}
// Pause
if (gs == GameState.Pause)
{
if (ks.IsKeyUp(Keys.Enter))
{
er = EnterReleased.Yes;
}
ball.X = paddle.Center.X - ballTex.Width / 2;
if (ks.IsKeyDown(Keys.Space) || (ks.IsKeyDown(Keys.Enter) && er == EnterReleased.Yes))
{
gs = GameState.Running;
ballSpeed.Y = -BALLSPEED;
}
}
// Menu
if (gs == GameState.Menu)
{
if (ks.IsKeyUp(Keys.Enter))
{
er = EnterReleased.Yes;
}
if (menuScene.Index == 0 && er == EnterReleased.Yes && ks.IsKeyDown(Keys.Enter))
{
StartGame();
er = EnterReleased.No;
}
if (menuScene.Index == 1 && er == EnterReleased.Yes && ks.IsKeyDown(Keys.Enter))
{
HowToScene();
er = EnterReleased.No;
}
if (menuScene.Index == 2 && er == EnterReleased.Yes && ks.IsKeyDown(Keys.Enter))
{
HelpScene();
er = EnterReleased.No;
}
if (menuScene.Index == 3 && er == EnterReleased.Yes && ks.IsKeyDown(Keys.Enter))
{
AboutScene();
er = EnterReleased.No;
}
if (menuScene.Index == 4 && ks.IsKeyDown(Keys.Enter))
{
this.Exit();
}
}
if (gs == GameState.Help || gs == GameState.HowTo || gs == GameState.About)
{
if (ks.IsKeyUp(Keys.Enter))
{
er = EnterReleased.Yes;
}
if (er == EnterReleased.Yes && ks.IsKeyDown(Keys.Enter))
{
MenuScene();
er = EnterReleased.No;
}
}
//Game Over
if (gs == GameState.Over)
{
if (endScene.Index == 0 && ks.IsKeyDown(Keys.Enter))
{
StartGame();
er = EnterReleased.No;
}
if (endScene.Index == 1 && ks.IsKeyDown(Keys.Enter))
{
MenuScene();
er = EnterReleased.No;
}
}
// Running
if (gs == GameState.Running)
{
// Ball Speed
ball.X += (int)ballSpeed.X;
ball.Y += (int)ballSpeed.Y;
// Ball - Paddle
if (ball.Intersects(paddle))
{
ballSpeed.Y *= -1;
ballSpeed.X = (ball.Center.X - paddle.Center.X) / 6; // To slow down
}
// Ball - Block
foreach (var block in blocks)
{
if (ball.Intersects(block))
{
blocks.Remove(block);
score += SCOREPOINTS;
ballSpeed.Y *= -1;
break;
}
}
// Ball - Walls
if (ball.Y < 0)
{
ballSpeed.Y *= -1;
}
if (ball.X < 0 || ball.X > WINDOWWIDTH - ball.Width)
{
ballSpeed.X *= -1;
}
if (ball.Y > WINDOWHEIGHT)
{
ResetPaddle();
lifes--;
return;
}
}
base.Update(gameTime);
}