public ChickenSpawnSystem(GameApp gameApp) : base(
Aspect.All(typeof(ChickenComponent)))
{
_gameApp = gameApp;
_entityFactory = _gameApp.Services.GetService <EntityFactory>();
_mapInfo = _gameApp.Services.GetService <MapInfo>();
_r = new Random();
_largeChickenSpawning = new ChickenSpawnBounds(400, 800);
_mediumChickenSpawning = new ChickenSpawnBounds(200, 600);
_smallChickenSpawning = new ChickenSpawnBounds(200, 500);
}
private Entity SpawnChicken(ChickenType chickenType)
{
var chicken = _entityFactory.CreateChicken(chickenType);
var transform = chicken.GetComponent <Transform2D>();
var rigidbody = chicken.GetComponent <RigidBody2D>();
var animatedSprite = chicken.GetComponent <AnimatedSprite>();
Vector2 size = Vector2.Zero;
float depth = 0f;
float speed = 0f;
ChickenSpawnBounds spawning = null;
float posY;
float posX;
SpriteEffects effects;
Vector2 velocity;
switch (chickenType)
{
case ChickenType.LARGE:
{
size = new Vector2(LargeChicken.Width, LargeChicken.Height);
speed = LargeChicken.Speed;
depth = LargeChicken.Depth;
spawning = _largeChickenSpawning;
break;
}
case ChickenType.MEDIUM:
{
size = new Vector2(MediumChicken.Width, MediumChicken.Height);
speed = MediumChicken.Speed;
depth = MediumChicken.Depth;
spawning = _mediumChickenSpawning;
break;
}
case ChickenType.SMALL:
{
size = new Vector2(SmallChicken.Width, SmallChicken.Height);
speed = SmallChicken.Speed;
depth = SmallChicken.Depth;
spawning = _smallChickenSpawning;
break;
}
}
transform.Size = size;
animatedSprite.Depth = depth;
animatedSprite.Play("fly");
// Random Y Position
posY = _r.Next(spawning.MinY, spawning.MaxY + 1);
// Random Direction
if (GetRandomChickenFlyDirection() == ChickenFlyDirection.LEFT)
{
//LEFT
posX = _mapInfo.Right;
effects = SpriteEffects.None;
velocity = Transform2D.Left;
}
else
{
// RIGHT
posX = _mapInfo.Left - transform.Bounds.Width;
effects = SpriteEffects.FlipHorizontally;
velocity = Transform2D.Right;
}
transform.Position = new Vector2(posX, posY);
animatedSprite.Effects = effects;
rigidbody.Velocity = velocity * speed;
return(chicken);
}
