public int ShootAliens(AlienFleet alienFleet)
{
int numHit = 0;
Rectangle bulletRect = new Rectangle((int)X, (int)Y, (int)Width, (int)Height);
for (int i = 0; i < 11; i++)
{
for (int j = 0; j < 5; j++)
{
Alien alien = alienFleet.aliens[i, j];
if (alien.Visible)
{
Rectangle alienRect = new Rectangle((int)alien.X, (int)alien.Y, (int)alien.Width, (int)alien.Height);
if (HitTest(bulletRect, alienRect))
{
numHit++;
Visible = false;
PlaySound(gameContent.alienShotSound);
alien.Visible = false;
}
}
}
}
return(numHit);
}
/// <summary>
/// LoadContent will be called once per game and is the place to load
/// all of your content.
/// </summary>
protected override void LoadContent()
{
spriteBatch = new SpriteBatch(GraphicsDevice);
gameContent = new GameContent(Content);
screenWidth = GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Width;
screenHeight = GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Height;
if (screenWidth >= 2500)
{
screenWidth = 2500;
}
if (screenHeight >= 1250)
{
screenHeight = 1250;
}
graphics.PreferredBackBufferWidth = screenWidth;
graphics.PreferredBackBufferHeight = screenHeight;
graphics.ApplyChanges();
speed1 = gameContent.speed1Sound.CreateInstance();
speed2 = gameContent.speed2Sound.CreateInstance();
speed3 = gameContent.speed3Sound.CreateInstance();
speed4 = gameContent.speed4Sound.CreateInstance();
int spaceShipX = (screenWidth - gameContent.imgSpaceShip.Width / 4) / 2;
int spaceShipY = screenHeight - 150;
spaceShip = new SpaceShip(spaceShipX, spaceShipY, screenWidth, spriteBatch, gameContent);
shields = new Shield[3];
for (int x = 0; x < 3; x++)
{
shields[x] = new Shield(screenWidth / 3 * x + screenWidth / 8, spaceShip.Y - 150, spriteBatch, GraphicsDevice);
}
alienFleet = new AlienFleet(50, 150, screenWidth, spaceShip.Y, spriteBatch, gameContent);
ufo = new UFO(0, 60, screenWidth, spriteBatch, gameContent);
gameBorder = new GameBorder(screenWidth, screenHeight, spriteBatch, gameContent);
}
public void RestartGame()
{
livesRemaining = 3;
aliensKilled = 0;
alienFireRate = 5000;
firstTime = false;
hitBottom = false;
level = 1;
score = 0;
int spaceShipX = (screenWidth - gameContent.imgSpaceShip.Width / 4) / 2;
int spaceShipY = screenHeight - 150;
spaceShip = new SpaceShip(spaceShipX, spaceShipY, screenWidth, spriteBatch, gameContent);
shields = new Shield[3];
for (int x = 0; x < 3; x++)
{
shields[x] = new Shield(screenWidth / 3 * x + screenWidth / 8, spaceShip.Y - 150, spriteBatch, GraphicsDevice);
}
alienFleet = new AlienFleet(50, 150, screenWidth, spaceShip.Y, spriteBatch, gameContent);
ufo = new UFO(0, 60, screenWidth, spriteBatch, gameContent);
gameBorder = new GameBorder(screenWidth, screenHeight, spriteBatch, gameContent);
}
/// <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();
spaceShip.Draw();
foreach (Shield shield in shields)
{
shield.Draw();
}
alienFleet.Draw();
ufo.Draw(spaceShip);
gameBorder.Draw();
spriteBatch.DrawString(gameContent.labelFont, "Lives: " + livesRemaining.ToString(), new Vector2(40, 10), Color.White);
Vector2 levelSpace = gameContent.labelFont.MeasureString("Level: " + level.ToString());
spriteBatch.DrawString(gameContent.labelFont, "Level: " + level.ToString(), new Vector2((screenWidth - levelSpace.X) / 2, 10), Color.White);
spriteBatch.DrawString(gameContent.labelFont, "Score: " + score.ToString(), new Vector2(screenWidth - 200, 10), Color.White);
if (readyToStart)
{
if (spaceShip.Visible && !hitBottom)
{
ufo.Visible = false;
string startMsg = "Press <Space> or Click to start the level";
Vector2 startSpace = gameContent.labelFont.MeasureString(startMsg);
spriteBatch.DrawString(gameContent.labelFont, startMsg, new Vector2((screenWidth - startSpace.X) / 2, screenHeight / 16), Color.White);
}
else if (livesRemaining > 0)
{
for (int x = 0; x < 11; x++)
{
for (int y = 0; y < 5; y++)
{
foreach (Blaster blaster in alienFleet.aliens[x, y].blasters)
{
blaster.Visible = false;
}
}
}
spaceShip.RespawnSpaceShip();
livesRemaining--;
readyToStart = false;
}
else
{
string endMsg = "Game Over";
Vector2 endSpace = gameContent.labelFont.MeasureString(endMsg);
spriteBatch.DrawString(gameContent.labelFont, endMsg, new Vector2((screenWidth - endSpace.X) / 2, screenHeight / 16 - endSpace.Y), Color.White);
string startMsg = "Press <Space> or Click to start the level";
Vector2 startSpace = gameContent.labelFont.MeasureString(startMsg);
spriteBatch.DrawString(gameContent.labelFont, startMsg, new Vector2((screenWidth - startSpace.X) / 2, screenHeight / 16 + endSpace.Y), Color.White);
}
}
else if (aliensKilled % 55 == 0 && firstTime)
{
alienFleet = new AlienFleet(50, 150, screenWidth, spaceShip.Y, spriteBatch, gameContent);
foreach (Bullet bullet in spaceShip.bullets)
{
bullet.Visible = false;
}
readyToStart = true;
firstTime = false;
alienFireRate /= 2;
level++;
livesRemaining++;
foreach (Shield shield in shields)
{
for (int x = 0; x < level; x++)
{
shield.Rebuild();
}
}
}
spriteBatch.End();
base.Draw(gameTime);
}