36 lines
2.0 KiB
C#
36 lines
2.0 KiB
C#
using Unity.Collections;
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using Unity.Entities;
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namespace ProjectM.Simulation
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{
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/// <summary>
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/// Phase 1.7 per-projectile mechanic-changer state — SERVER-ONLY, NOT a <c>[GhostField]</c> (mirrors
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/// <see cref="KnockbackState"/>): it adds no replicated surface, so the <see cref="Projectile"/> ghost hash
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/// stays FROZEN (adding fields to the ghost <see cref="Projectile"/> component itself would change its
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/// StableTypeHash → serializer hash → ghost re-bake; a separate server-only component does not). Baked inert
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/// on the projectile prefab; seeded server-side at spawn (<c>AbilityFireSystem</c>) from the owner's
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/// <see cref="BoonEffects"/>, and read only by <c>ProjectileDamageSystem</c> (also server-only) — the owner's
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/// predicted projectile needs no local copy (pierce = server delays despawn → client reconciles via ghost
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/// persistence; chain = server rewrites the replicated <see cref="Projectile.Direction"/>; pull just flips the
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/// server-stamped <see cref="KnockbackState.Dir"/>).
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/// </summary>
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public struct ProjectileEffectState : IComponentData
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{
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/// <summary>Enemy hits remaining before the projectile despawns (0 = destroy on next hit).</summary>
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public byte PierceRemaining;
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/// <summary>Chain-to-next-target hops remaining after a hit.</summary>
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public byte ChainRemaining;
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/// <summary>bit0 = Pull (stamp knockback TOWARD the shooter instead of away).</summary>
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public byte Flags;
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/// <summary>Targets already hit by this projectile — excluded DURING target selection so a surviving
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/// (pierced/chained) projectile never re-hits the same enemy across ticks. Overflow ⇒ destroy (natural cap).</summary>
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public FixedList64Bytes<Entity> Hit;
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}
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/// <summary>Bit masks for <see cref="ProjectileEffectState.Flags"/>.</summary>
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public static class ProjectileEffectFlag
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{
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public const byte Pull = 1;
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}
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}
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