CurveExample.cs

CurveExample.cs

using UnityEngine;
using MinMaxCurve = UnityEngine.ParticleSystem.MinMaxCurve;

public class CurveExample : MonoBehaviour
{
    [Range(0, 10)]
    public int CurrentLevel = 0;

    public int LevelCount = 10;

    public float CalculatedProgression;
    public float CalculatedDifficulty;
    public int CalculatedEnemyMin;
    public int CalculatedEnemyMax;

    // Author a difficulty curve where x is the % of the way through the game
    [SerializeField]
    private AnimationCurve difficultyCurve = null;

    // Author as many curves like this as you want, where x is the current difficulty
    [SerializeField]
    private MinMaxCurve enemyCountCurve = default(MinMaxCurve);

    private void Update()
    {
        // Get the normalized progression value
        CalculatedProgression = CurrentLevel / (float)LevelCount;

        // Evaluate the difficulty value for this progression value
        CalculatedDifficulty = difficultyCurve.Evaluate(CalculatedProgression);

        // Evaluate the minmax curve for this difficulty, the second parameter to Evaluate is the 
        // % between the min and max curve
        CalculatedEnemyMax = Mathf.RoundToInt(enemyCountCurve.Evaluate(CalculatedDifficulty, 1));
        CalculatedEnemyMin = Mathf.RoundToInt(enemyCountCurve.Evaluate(CalculatedDifficulty, 0));
    }
}