/// <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 state = Keyboard.GetState();
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
if (state.IsKeyDown(Keys.Enter))
{
gameStarted = true;
}
if (gameStarted)
{
mapGenerator.Update(gameTime);
if (state.IsKeyDown(Keys.Left))
{
//player.Position = new Vector2(player.Position.X - scale, GraphicsDevice.Viewport.Height - (player.Size.Y));
player.MoveLeft(mapScale);
}
if (state.IsKeyDown(Keys.Right))
{
//player.Position = new Vector2(player.Position.X + scale, GraphicsDevice.Viewport.Height - (player.Size.Y));
player.MoveRight(mapScale);
}
foreach (Plane enemy in enemies)
{
enemy.MoveForward(mapSpeed);
}
//if (state.IsKeyDown(Keys.Up))
// player.MoveForward(scale);
//if (state.IsKeyDown(Keys.Down))
// player.MoveBackward(scale);
if (state.IsKeyDown(Keys.Space))
{
if (gameTime.TotalGameTime.CompareTo(player.LastBulletTime) >= 0)
{
player.AddBullet();
player.LastBulletTime = gameTime.TotalGameTime.Add(new TimeSpan(0, 0, 0, 0, 700));
}
}
for (int i = 0; i < player.Bullets.Count; i++)
{
player.Bullets[i].Position = new Vector2(player.Bullets[i].Position.X, player.Bullets[i].Position.Y - player.Bullets[i].Speed);
if (enemies.Remove(enemies.Where(x => x.Intersects(player.Bullets[i].Rectangle)).FirstOrDefault()))
{
player.Bullets.Remove(player.Bullets[i]);
}
else if (player.Bullets[i].Position.Y + player.Bullets[i].Size.Y < 0)
{
player.Bullets.Remove(player.Bullets[i]);
}
}
if (mapGenerator.Intersects(player))
{
LoadGame();
}
for (int i = 0; i < enemies.Count; i++)
{
if (enemies[i].Position.Y > GraphicsDevice.Viewport.Height)
{
enemies.Remove(enemies[i]);
}
else if (mapGenerator.Intersects(enemies[i]))
{
enemies.Remove(enemies[i]);
}
}
foreach (Plane enemy in enemies)
{
int leftWall = mapGenerator.leftSide.Select(n => new { n, distance = Math.Abs(n.Top - enemy.Center.Y) }).OrderBy(p => p.distance).First().n.Right,
rightWall = mapGenerator.rightSide.Select(n => new { n, distance = Math.Abs(n.Top - enemy.Center.Y) }).OrderBy(p => p.distance).First().n.Left;
int danger = HelperClass.CalculateDanger(new Vector2(enemy.Center.X, enemy.Position.Y + enemy.Size.Y), player.Bullets, leftWall, rightWall);
int newDanger = HelperClass.CalculateDanger(new Vector2(enemy.Center.X + enemySpeed, enemy.Center.Y), player.Bullets, leftWall, rightWall);
if (danger < newDanger)
{
enemy.MoveLeft(enemySpeed);
}
else if (danger > newDanger)
{
enemy.MoveRight(enemySpeed);
}
}
if (enemies.Count < 4)
{
if (gameTime.TotalGameTime.CompareTo(lastEnemyTime) >= 0)
{
enemies.Add(new Plane(this, new Vector2(enemySpawnChance.Next(mapGenerator.LastLeftRectangle.Right + 60, mapGenerator.LastRightRectangle.Left - 100), -60), false));//
lastEnemyTime = gameTime.TotalGameTime.Add(new TimeSpan(0, 0, 0, 0, enemySpawnChance.Next(300, 1400)));
}
}
}
oldState = state;
base.Update(gameTime);
}
