38 lines
1.1 KiB
C#
38 lines
1.1 KiB
C#
using GameCore.Attributes;
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using GameCore.ECS;
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using GameCore.ECS.Interfaces;
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using GameCore.Events;
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using Attribute = GameCore.Attributes.Attribute;
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namespace GameCore.Combat;
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public class DamageSystem : ISystem
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{
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private readonly World _world;
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public DamageSystem(World world)
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{
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_world = world;
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world.Subscribe<DamageDealtEvent>(OnDamageDealt);
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}
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public void Update(World world, float deltaTime)
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{
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var entitiesWithHealth = world.GetEntitiesWith<AttributeComponent>();
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foreach (var entity in entitiesWithHealth)
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{
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if (world.GetComponent<DeathComponent>(entity) != null) continue;
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var attributes = world.GetComponent<AttributeComponent>(entity);
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if (attributes == null) continue;
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if (attributes.GetValue(Attribute.Health) <= 0) world.AddComponent(entity, new DeathComponent());
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}
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}
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private void OnDamageDealt(DamageDealtEvent e)
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{
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var targetAttributes = _world.GetComponent<AttributeComponent>(e.Target);
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targetAttributes?.ModifyValue(Attribute.Health, -e.Amount);
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}
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} |