protected override void Initialize()
{
var displaySize = this.graphics.GraphicsDevice.DisplayMode.TitleSafeArea;
this.graphics.PreferredBackBufferHeight = displaySize.Height - 100;
this.graphics.PreferredBackBufferWidth = displaySize.Width;
this.graphics.ApplyChanges();
const int minX = 0;
var maxX = this.graphics.PreferredBackBufferWidth;
const int minY = 0;
var maxY = this.graphics.PreferredBackBufferHeight;
this.moveSystem = new MoveSystem(this.graphics, Scene.EntityCount, Scene.PositionComponents, Scene.VelocityComponents);
this.velocityModifierSystem = new VelocityModifierSystem(Scene.EntityCount, Scene.VelocityModifierCount, Scene.PositionComponents,
Scene.VelocityConstraintComponents, Scene.VelocityComponents, Scene.SizeComponents, Scene.VelocityModifierComponents);
var random = new Random();
for (int i = 0; i < Scene.EntityCount; i++)
{
var position = new PositionComponent();
position.Value = new Vector2(random.Next(minX, maxX), random.Next(minY, maxY));
Scene.PositionComponents[i] = position;
var entityTypePredicate = i >= Constants.DotCount;
var velMin = MathF.Select(Constants.Dot.MinVelocity, Constants.Bubble.MinVelocity, entityTypePredicate);
var velMax = MathF.Select(Constants.Dot.MaxVelocity, Constants.Bubble.MaxVelocity, entityTypePredicate);
Scene.VelocityConstraintComponents[i] = new VelocityConstraintComponent(velMin, velMax);
var velocity = new VelocityComponent();
velocity.Value = random.NextVelocity(velMin, velMax);
Scene.VelocityComponents[i] = velocity;
var velocityModifierValue = (float)random.NextDouble() * (Constants.Bubble.MaxModifier - Constants.Bubble.MinModifier) + Constants.Bubble.MinModifier;
var scaleMax = MathF.Select(Constants.Bubble.MinModifier, Constants.Bubble.MaxModifier, velocityModifierValue >= 0.0f);
var bubbleAlpha = (byte)(int)(128 * (velocityModifierValue / scaleMax));
var bubbleColorR = MathB.Select(0, byte.MaxValue, velocityModifierValue < 0.0f);
var bubbleColorG = MathB.Select(0, byte.MaxValue, velocityModifierValue >= 0.0f);
var dotColors = new byte[3];
random.NextBytes(dotColors);
var colorR = MathB.Select(dotColors[0], bubbleColorR, entityTypePredicate);
var colorG = MathB.Select(dotColors[1], bubbleColorG, entityTypePredicate);
var colorB = MathB.Select(dotColors[2], byte.MinValue, entityTypePredicate);
var alpha = MathB.Select(byte.MaxValue, bubbleAlpha, entityTypePredicate);
var index = Math.Select(Constants.Sprites.Dot, Constants.Sprites.Bubble, entityTypePredicate);
Scene.SpriteComponents[i] = new SpriteComponent(colorR, colorG, colorB, alpha, index);
if (entityTypePredicate)
{
var modifierIndex = i - Constants.DotCount;
Scene.SizeComponents[modifierIndex] = new SizeComponent(64);
Scene.VelocityModifierComponents[modifierIndex] = new VelocityModifierComponent(velocityModifierValue);
}
}
base.Initialize();
}