55 lines
1.6 KiB
C#
55 lines
1.6 KiB
C#
using Chickensoft.Collections;
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namespace Zennysoft.Game.Implementation.Components;
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public class ExperiencePointsComponent
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{
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public IAutoProp<int> CurrentExp => _currentExp;
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public IAutoProp<int> ExpToNextLevel => _expToNextLevel;
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public IAutoProp<double> ExpGainRate => _expGainRate;
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public IAutoProp<int> Level => _level;
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private readonly AutoProp<int> _currentExp;
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private readonly AutoProp<int> _expToNextLevel;
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private readonly AutoProp<double> _expGainRate;
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private readonly AutoProp<int> _level;
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public ExperiencePointsComponent()
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{
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var firstLevelExpRequirement = ExpToNextLevelCalculation(1);
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_expToNextLevel = new AutoProp<int>(firstLevelExpRequirement);
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_currentExp = new AutoProp<int>(0);
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_expGainRate = new AutoProp<double>(1.0);
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_level = new AutoProp<int>(1);
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}
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public void Gain(int baseExpGain)
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{
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var modifiedExpGain = baseExpGain * _expGainRate.Value;
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var newCurrentExpTotal = modifiedExpGain + _currentExp.Value;
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while (modifiedExpGain + _currentExp.Value >= _expToNextLevel.Value)
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LevelUp();
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var cappedAmount = Math.Min(baseExpGain + _currentExp.Value, _expToNextLevel.Value);
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_currentExp.OnNext(cappedAmount);
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}
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public void LevelUp()
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{
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_level.OnNext(_level.Value + 1);
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var expToNextLevel = ExpToNextLevelCalculation(_level.Value);
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_currentExp.OnNext(_currentExp.Value - _expToNextLevel.Value);
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_expToNextLevel.OnNext(expToNextLevel);
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}
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private int ExpToNextLevelCalculation(int nextLevel)
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{
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return (int)(6.5 * nextLevel + 4.5 * Math.Pow(nextLevel, 2) + Math.Pow(nextLevel, 3));
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}
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}
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