43 lines
1.2 KiB
C#
43 lines
1.2 KiB
C#
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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public struct Attribute
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{
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[SerializeField]
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private long _base;
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public Attribute(long stat)
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{
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_base = stat;
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}
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/// <summary>
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/// Permanently increase the stat value.
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/// </summary>
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/// <param name="by">Increase amount.</param>
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public void LevelUp(long by)
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{
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_base += by;
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}
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/// <summary>
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/// Calculates the stat value with accumulated buff and debuff modifiers.
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/// </summary>
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/// <param name="baseBonus">Additive bonus applied before multiplicative scaling.</param>
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/// <param name="permyriadBonus">Multiplicative scaling in hundredths of a percent. E.g., 625 permyriad corresponds to 6.25%.</param>
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/// <param name="flatBonus">Additive bonus applied after multiplicative scaling.</param>
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/// <returns>(base + baseBonus) * (100% + permyriadBonus) + flatBonus, bounded below by 0.</returns>
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public long Calc(long baseBonus, long permyriadBonus, long flatBonus)
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{
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var r = _base + baseBonus;
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var m = permyriadBonus + 10000;
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r = r * (m / 10000) + (r / 10000) * (m % 10000) + flatBonus;
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if (r <= 0)
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{
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return 0;
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}
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return r;
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}
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}
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