brick-framework/GameCore/Combat/Effects/HitscanEffect.cs

using GameCore.Combat.Interfaces;
using GameCore.Events;
using GameCore.Input;

namespace GameCore.Combat.Effects;

public class HitscanEffect(float range) : IEffect
{
    public void Execute(EffectContext context)
    {
        var input = context.World.GetComponent<InputStateComponent>(context.Owner);
        var weapon = context.World.GetComponent<WeaponComponent>(context.Owner);

        if (input == null || weapon == null) return;

        var fromPos = input.MuzzlePosition;
        var targetPos = fromPos + input.MuzzleDirection * range;
        var hit = context.World.WorldQuery.Raycast(fromPos, targetPos, context.Owner);

        context.World.PublishEvent(new HitscanImpactEvent(context.Owner, fromPos, targetPos, hit));

        if (hit.DidHit)
        {
            var hitContext = new EffectContext
            {
                World = context.World,
                Owner = context.Owner,
                Target = hit.HitEntity
            };

            foreach (var effect in weapon.OnHitEffects) effect.Execute(hitContext);
        }
    }
}