namespace Domain {
	public class Model {
		public int Score { private set; get; }

		public readonly int SpawnRate;
		public readonly int GrowIterations;

		public float GrowPercentage { private set; get; }

		public Model(int spawnRate, int growIterations) : this(0, spawnRate, growIterations) { }

		public Model(int score, int spawnRate, int growIterations) {
			Score = score;
			SpawnRate = spawnRate;
			GrowIterations = growIterations;
		}

		public void AddScore() {
			Score++;

			if (Score % GrowIterations == 0) {
				float relativeScore = Score % (GrowIterations * SpawnRate);
				if (relativeScore == 0 && Score != 0)
					relativeScore = GrowIterations * SpawnRate;
				GrowPercentage = relativeScore / (SpawnRate * GrowIterations);
			}
		}
	}
}