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40
Assets/Code/GameState/Entities/CharacterStatsFactory.cs
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40
Assets/Code/GameState/Entities/CharacterStatsFactory.cs
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using System;
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using ZLinq;
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namespace Nox.Game {
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public interface ICharacterStatsFactory {
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EntityStats Create(IEntityDefinition entityDefinition);
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}
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public sealed class CharacterStatsFactory : ICharacterStatsFactory {
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private readonly StarterCharacterSettings baseSettings;
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private readonly IModifierResolver modifierResolver;
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public CharacterStatsFactory(StarterCharacterSettings baseSettings, IModifierResolver modifierResolver) {
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this.baseSettings = baseSettings;
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this.modifierResolver = modifierResolver ?? throw new ArgumentNullException(nameof(modifierResolver));
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}
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public EntityStats Create(IEntityDefinition entityDefinition) {
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var attributes = entityDefinition.Attributes;
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if(attributes.attributes.AsValueEnumerable().Any(a => a.value <= 0)) {
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throw new ArgumentOutOfRangeException( "attributes cannot be zero or negative.", new ArgumentException() );
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}
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var healthModifiers = modifierResolver.CollectModifiers(entityDefinition, StatType.Health);
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var manaModifiers = modifierResolver.CollectModifiers(entityDefinition, StatType.Mana);
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var levelModifiers = modifierResolver.CollectModifiers(entityDefinition, StatType.Level);
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var experienceModifiers = modifierResolver.CollectModifiers(entityDefinition, StatType.Experience);
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return new EntityStats {
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stats = new[] {
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new Stat(StatType.Health, modifierResolver.Resolve(baseSettings.defaultEntityStats.GetValue(StatType.Health), healthModifiers, entityDefinition)),
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new Stat(StatType.Mana, modifierResolver.Resolve(baseSettings.defaultEntityStats.GetValue(StatType.Mana), manaModifiers, entityDefinition)),
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new Stat(StatType.Level, modifierResolver.Resolve(baseSettings.defaultEntityStats.GetValue(StatType.Level), levelModifiers, entityDefinition)),
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new Stat(StatType.Experience, modifierResolver.Resolve(baseSettings.defaultEntityStats.GetValue(StatType.Experience), experienceModifiers, entityDefinition))
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}
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};
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}
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}
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}
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