/// <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)
{
KeyboardState keyboardState = Keyboard.GetState();
MouseState mouseState = Mouse.GetState();
switch (Stat)
{
case Stat.SplashScreen:
SplashScreen.Update();
if (keyboardState.IsKeyDown(Keys.Space))
{
Stat = Stat.Game;
}
break;
case Stat.Game:
Asteroids.Update();
float time = (float)gameTime.TotalGameTime.TotalMilliseconds / 10;
if (mouseState.LeftButton == ButtonState.Pressed && time > Asteroids.playerReload)
{
Asteroids.CreateBullet();
Asteroids.playerReload = time + 15;
}
if (keyboardState.IsKeyDown(Keys.M))
{
Stat = Stat.SplashScreen;
}
if (keyboardState.IsKeyDown(Keys.W))
{
Asteroids.Player.Up();
}
if (keyboardState.IsKeyDown(Keys.S))
{
Asteroids.Player.Down();
}
if (keyboardState.IsKeyDown(Keys.D))
{
Asteroids.Player.Right();
}
if (keyboardState.IsKeyDown(Keys.A))
{
Asteroids.Player.Left();
}
break;
}
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
// TODO: Add your update logic here
base.Update(gameTime);
}
/// <summary>
/// LoadContent will be called once per game and is the place to load
/// all of your content.
/// </summary>
protected override void LoadContent()
{
// Create a new SpriteBatch, which can be used to draw textures.
spriteBatch = new SpriteBatch(GraphicsDevice);
SplashScreen.Background = Content.Load <Texture2D>("background");
SplashScreen.Font = Content.Load <SpriteFont>("SplashFont");
Asteroids.Init(spriteBatch, 800, 480);
Star.Texture2D = Content.Load <Texture2D>("Star");
Player.Texture2D = Content.Load <Texture2D>("Player");
Target.Texture2D = Content.Load <Texture2D>("Target");
Enemy.Texture2D = Content.Load <Texture2D>("Enemy");
Bullet.Texture2D = Content.Load <Texture2D>("Bullet");
Bullet.EnemyTexture2D = Content.Load <Texture2D>("EnemyBullet");
Asteroids.healthTexture = Content.Load <Texture2D>("Health");
// TODO: use this.Content to load your game content here
}
/// <summary>
/// This is called when the game should draw itself.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.Black);
spriteBatch.Begin();
switch (Stat)
{
case Stat.SplashScreen:
SplashScreen.Draw(spriteBatch);
break;
case Stat.Game:
Asteroids.Draw();
break;
}
spriteBatch.End();
// TODO: Add your drawing code here
base.Draw(gameTime);
}
public void Update()
{
phase += 0.04f;
if (this.hiddenTimer > 0)
{
this.hiddenTimer--;
}
else if (alphaBlending < 1)
{
this.alphaBlending += 0.02f;
}
if (this.hiddenTimer <= 0)
{
// shooting
if (shootingTime > 0)
{
shootingTime--;
}
else
{
Asteroids.CreateEnemyBullet();
shootingTime = shootingTimer;
}
// rotation
if (isSegmentized && length < maxLength)
{
length += 2;
}
double targetAngle = Math.Atan2(Asteroids.Player.Pos.Y - Pos.Y, Asteroids.Player.Pos.X - Pos.X) * 180.0 / Math.PI;
if (currentAngle > 180)
{
currentAngle = -180;
}
if (currentAngle < -180)
{
currentAngle = 180;
}
if (Math.Abs(currentAngle - targetAngle) > 5)
{
if (Math.Abs(currentAngle - targetAngle) < 180)
{
// Rotate current directly towards target.
if (currentAngle < targetAngle)
{
currentAngle += angleRotationSpeed;
}
else
{
currentAngle -= angleRotationSpeed;
}
}
else
{
// Rotate the other direction towards target.
if (currentAngle < targetAngle)
{
currentAngle -= angleRotationSpeed;
}
else
{
currentAngle += angleRotationSpeed;
}
}
}
}
}
public double getAngle(int randomize = 32)
{
return(((currentAngle + Asteroids.getRandInt(-randomize, randomize)) / 180 * Math.PI) + coefRadius * Math.Sin(phase));
}
public void RandomSet()
{
Pos = new Vector2(Asteroids.getRandInt(Asteroids.Width, Asteroids.Width + 300),
Asteroids.getRandInt(0, Asteroids.Height));
// color = Color.FromNonPremultiplied(Asteroids.getRandInt(0, 256), Asteroids.getRandInt(0, 256), Asteroids.getRandInt(0, 256), 255);
}
