// Update the game state
// Called every frame
// <timeStep> time in seconds since last frame
protected async override void OnUpdate(float timeStep)
{
base.OnUpdate(timeStep);
// Shield
foreach (Character c in Characters)
{
c.ShieldNode.Position = c.ShieldUp ? c.WorldNode.Position : new Vector3(1000, 10000, -1000);
}
// Pickups
foreach (Character c in Characters)
{
foreach (Pickup p in Pickups.ToList())
{
if (c.Collides(p))
{
if (p.PickUp(c))
{
if (c is CharacterPlayer)
{
PlaySound("sounds/effects/pop.ogg", false);
}
p.WorldNode.Remove();
Pickups.Remove(p);
c.WorldNode.GetComponent <StaticSprite2D>().Sprite = c.PlayerSpriteAttack;
}
}
}
}
// Bullets
foreach (Bullet b in Bullets.ToList())
{
if (b.WorldNode.IsDeleted)
{
continue;
}
if (b.WorldNode.Position2D.Length > 50f)
{
b.WorldNode.Remove();
Bullets.Remove(b);
continue;
}
bool deleted = false;
b.WorldNode.SetPosition2D(b.WorldNode.Position2D + (b.Direction * bulletSpeed * timeStep));
foreach (Character c in Characters)
{
if (b.Owner == c)
{
continue;
}
if (c.Collides(b))
{
c.Hit(b);
b.WorldNode.Remove();
Bullets.Remove(b);
deleted = true;
break;
}
}
if (deleted)
{
continue;
}
foreach (WorldObject o in collisionObjects)
{
if (b.WorldNode.IsDeleted || o.WorldNode.IsDeleted)
{
continue;
}
if (o.Collides(b))
{
b.WorldNode.Remove();
Bullets.Remove(b);
break;
}
}
}
// PlayerCharacter may have to be loaded from saved game
if (PlayerCharacter != null)
{
PlayerCharacter.Input.W = Input.GetKeyDown(Key.W);
PlayerCharacter.Input.A = Input.GetKeyDown(Key.A);
PlayerCharacter.Input.S = Input.GetKeyDown(Key.S);
PlayerCharacter.Input.D = Input.GetKeyDown(Key.D);
PlayerCharacter.Input.F = Input.GetKeyDown(Key.F);
PlayerCharacter.Input.Space = Input.GetKeyPress(Key.Space);
PlayerCharacter.Input.LeftClick = Input.GetKeyDown(Key.E);
Vector2 mousePosition = new Vector2(Input.MousePosition.X, Input.MousePosition.Y);
Vector2 resolution = new Vector2(Graphics.Width, Graphics.Height);
Vector2 mouseUV = ((2f * mousePosition) - resolution) / resolution.Y;
mouseUV.Y *= -1f;
PlayerCharacter.Input.MousePosition = mouseUV;
foreach (Character c in Characters.ToList())
{
// Death
if (c.Health <= 0)
{
// sound effect
// create new node to play sound from, as character will be removed
var node = new Scene().CreateChild();
node.Position = c.Position;
PlaySound("sounds/effects/death.ogg", false);
c.WorldNode.Remove();
Characters.Remove(c);
if (c.LastBullet.Owner is CharacterPlayer)
{
if (hardcore)
{
PlayerCharacter.Score += 150;
}
else
{
PlayerCharacter.Score += 100;
}
}
if (Characters.Count == 1 && Characters.First() == PlayerCharacter)
{
gameover = true;
timer.Enabled = false;
HandleWin();
}
else if (c == PlayerCharacter)
{
gameover = true;
timer.Enabled = false;
HandleLose();
}
continue;
}
c.UpdateCollision(collisionObjects);
c.Update(timeStep);
}
PlayerCharacter.Input.LeftClick = false;
if (Input.GetKeyDown(Key.F1) && !schaubMode)
{
Save("latest.txt");
var saved = new Text()
{
Value = "Game Saved"
};
saved.SetColor(Color.Cyan);
saved.SetFont(font: ResourceCache.GetFont("fonts/FiraSans-Regular.otf"), size: 15);
saved.VerticalAlignment = VerticalAlignment.Center;
saved.HorizontalAlignment = HorizontalAlignment.Center;
InvokeOnMain(() => { UI.Root.AddChild(saved); });
await Task.Delay(500);
try
{
InvokeOnMain(() =>
{
try { UI.Root.RemoveChild(saved); }
catch { return; }
});
}
catch { return; }
}
if (Input.GetKeyDown(Key.F2))
{
timer.Enabled = false;
Restart();
}
}
}
