AlienSprite FindBottomAlienInCol(int col)
{
AlienSprite Found = null;
Found = aliens.Where(a => a.Col == col && a.State == AlienStates.Alive).OrderByDescending(a => a.Row).FirstOrDefault();
return(Found);
}
void AlienShoot()
{
List <AlienSprite> ShootingAliens = new List <AlienSprite>();
for (int col = 1; col <= 11; col++)
{
AlienSprite Alien;
Alien = FindBottomAlienInCol(col);
if (Alien != null)
{
ShootingAliens.Add(Alien);
}
}
if (ShootingAliens.Count > 0 && Mode == PlayScreenModes.Playing)
{
int ShooterIndex = Random.Next(0, ShootingAliens.Count() - 1);
AlienSprite ShootingAlien = ShootingAliens[ShooterIndex];
/*
* foreach (AlienSprite alien in aliens)
* {
* alien.GhostEffect = 0;
* }
* foreach (AlienSprite alien in ShootingAliens)
* {
* alien.GhostEffect = 50;
* }
* ShootingAlien.GhostEffect = 70;
*/
AlienShoot(ShootingAlien);
ScheduleAlienShoot();
}
}
/// <summary>
/// Create all of the aliens when a level starts
/// </summary>
public void CreateAliens()
{
Sprites.RemoveAll(s => s is AlienSprite);
aliens.Clear();
AlienCount = 0;
// Create 55 alien sprites in 5 rows of 11
for (int row = 1; row <= 5; row++)
{
for (int col = 1; col <= 11; col++)
{
AlienSprite newAlien = AddSprite <AlienSprite>();
newAlien.X = -100 + col * 14;
newAlien.Y = 80 - row * 10;
newAlien.Col = col;
newAlien.Row = row;
if (row == 1)
{
newAlien.Setup(3);
}
if (row == 2 || row == 3)
{
newAlien.Setup(2);
}
if (row == 4 || row == 5)
{
newAlien.Setup(1);
}
aliens.Add(newAlien);
AlienCount++;
}
}
}
void AlienShoot(AlienSprite ShootingAlien)
{
AlienMissileSprite AlienMissile;
AlienMissile = new AlienMissileSprite();
alienMissiles.Add(AlienMissile);
AddSprite(AlienMissile);
AlienMissile.Fire(ShootingAlien.Position, ShootingAlien.Rotation);
}
}
/// <summary>
/// Start the title screen
/// This happens at the beginning of the game, and when you're done playing
/// </summary>
public override void StartScene()
{
Texts.Clear();
Sprites.Clear();
// Add the title text
AddText(new Text
{
Value = "Space Invaders",
Position = new Vector2(0f, 80f),
Alignment = HorizontalAlignments.Center,
AnimationType = TextAnimations.Typewriter,
AnimationSeconds = 0.15,
Scale = 1f,
//Font = FancyFont,
OnAnimationComplete = (Text text) =>
{
// When the title text is done typing, show the high score
HighScoreText = AddText(new Text
{
Value = "High Score:",
Position = new Vector2(80f, 90f),
Alignment = HorizontalAlignments.Center,
VerticalAlign = VerticalAlignments.Top,
AnimationType = TextAnimations.SeeSaw,
AnimationSeconds = 0.2,
AnimationIntensity = 0.15,
Scale = 0.4f,
});
UfoSprite ufo = AddSprite <UfoSprite>();
ufo.X = -49;
ufo.Y = 45;
Wait(2.3f, () =>
{
AlienSprite alien = AddSprite <AlienSprite>();
alien.X = -40;
alien.Y = 13;
alien.Setup(1);
});
Wait(5.2f, () =>
{
AlienSprite alien = AddSprite <AlienSprite>();
alien.X = -40;
alien.Y = -13;
alien.Setup(2);
});
Wait(8.7, () =>
{
AlienSprite alien = AddSprite <AlienSprite>();
alien.X = -40;
alien.Y = -43;
alien.Setup(3);
});
AlienScoreText = AddText(new Text
{
Value = "= ? POINTS" + Text.NewLine + Text.NewLine +
"= 10 POINTS" + Text.NewLine + Text.NewLine +
"= 20 POINTS" + Text.NewLine + Text.NewLine +
"= 30 POINTS",
Position = new Vector2(0, 0),
Alignment = HorizontalAlignments.Center,
VerticalAlign = VerticalAlignments.Center,
AnimationType = TextAnimations.Typewriter,
AnimationSeconds = 0.2,
Scale = 0.8f,
Color = Color.White
});
}
});
// Add the 1p start key text
Player1StartText = AddText(new Text
{
Value = "1 Player Start",
Position = new Vector2(-65f, -85f),
Alignment = HorizontalAlignments.Center,
VerticalAlign = VerticalAlignments.Center,
AnimationType = TextAnimations.None,
AnimationIntensity = 0.2,
Scale = 0.6f,
Color = Color.Lime
});
// Add the 2p start key text
Player2StartText = AddText(new Text
{
Value = "2 Player Start",
Position = new Vector2(65f, -85f),
Alignment = HorizontalAlignments.Center,
VerticalAlign = VerticalAlignments.Center,
AnimationType = TextAnimations.None,
AnimationIntensity = 0.2,
Scale = 0.6f,
Color = Color.Lime
});
if (SpaceInvaders.NumberOfPlayers == 1)
{
Player1StartText.AnimationType = TextAnimations.Throb;
Player1StartText.Scale = 0.6f;
Player1StartText.Start();
}
else
{
Player2StartText.AnimationType = TextAnimations.Throb;
Player2StartText.Scale = 0.6f;
Player2StartText.Start();
}
}
