109 lines
4.2 KiB
C#
109 lines
4.2 KiB
C#
using RPGCore.Core.Objects;
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using RPGCore.ObjectModules.EventObjectModule;
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using RPGCore.Stats.ObjectModules.StatsObjectModule.Events;
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using RPGCoreCommon.DynamicValues;
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using UnityEngine;
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namespace RPGCore.Stats.ObjectModules.StatsObjectModule
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{
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/// <summary>
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/// <b>You should never instantiate this by yourself!</b>
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/// Instantiated automatically by <see cref="StatsModule"/> for every available <see cref="StatDefinitionSO"/>.
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/// </summary>
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public sealed class StatValue
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{
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public readonly StatDefinitionSO definition;
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private readonly BaseObject _parent;
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public readonly DynamicValueSourceContext sourceContext = new();
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/// <summary>
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/// Base value defined in <see cref="StatsModule"/> attached to <see cref="BaseObject"/>.
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/// Formula result will be added to this base value.
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/// Default base value is ZERO.
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/// </summary>
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public int baseValue { get; private set; }
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/// <summary>
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/// This value is calculated by <see cref="DynamicValue"/> in <see cref="StatDefinitionSO"/> and can have two meanings:<br/>
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/// 1. If <see cref="StatType.Value"/> - just simple value stat<br/>
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/// 2. If <see cref="StatType.Resource"/> - this is maximum value for that resource
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/// </summary>
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public int value { get; private set; }
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/// <summary>
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/// Usable only when <see cref="StatDefinitionSO"/>.<see cref="StatType"/> is <see cref="StatType.Resource"/>.<br/>
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/// This value represent current resource of this stat. Always between <see cref="baseValue"/> and <see cref="value"/>
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/// </summary>
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public int resource { get; private set; }
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internal StatValue(StatDefinitionSO definition, int baseValue, BaseObject parent)
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{
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this.definition = definition;
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_parent = parent;
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this.baseValue = baseValue;
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}
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/// <summary>
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/// Refreshes <see cref="value"/>, by calculating formula again.
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/// </summary>
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internal void Refresh()
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{
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var previous = value;
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value = baseValue + definition.dynamicValue.GetValue(sourceContext);
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_parent.events.Invoke(new StatValueChangeEvent
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{
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after = value,
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before = previous,
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statDefinition = definition,
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target = _parent
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});
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}
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/// <summary>
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/// Sets new <see cref="baseValue"/> and then do <see cref="Refresh"/> to recalculate whole <see cref="value"/>
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/// </summary>
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/// <param name="amount">New base value</param>
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public void SetBase(int amount)
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{
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baseValue = amount;
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Refresh();
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}
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/// <summary>
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/// Changes (or simpler - uses) <see cref="resource"/> of this stat value by given amount.
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/// It just calls <see cref="SetResource(int)"/> with: <see cref="resource"/> + <see cref="amount"/>
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/// </summary>
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/// <param name="amount">Amount that will be added or subtracted from <see cref="resource"/></param>
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public void ChangeResource(int amount)
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{
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SetResource(resource + amount);
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}
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/// <summary>
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/// Sets <see cref="resource"/> to given amount. Amount will be clamped between ZERO and <see cref="value"/>.
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/// </summary>
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/// <param name="amount">New amount</param>
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public void SetResource(int amount)
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{
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var old = resource;
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resource = Mathf.Clamp(amount, 0, value);
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_parent.events.Invoke(new StatResourceChangeEvent
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{
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delta = resource - old,
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after = resource,
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before = old,
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statDefinition = definition,
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target = _parent
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});
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}
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/// <summary>
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/// Sets <see cref="resource"/> to given percentage. Percentage will be clamped between ZERO and ONE.
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/// </summary>
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/// <param name="percentage">New percentage</param>
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public void SetResource(float percentage)
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{
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SetResource(Mathf.CeilToInt(Mathf.Clamp01(percentage) * value));
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}
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}
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} |