EB-1: machines can die - structures get HP, Husks raze them, wounded base persists

Structures (Turret/Wall/Pylon) reuse the combat spine: authoring bakes Health(GhostField)+DamageEvent buffer+a Destructible tag (no HitRadius -> no friendly projectile fire; no EffectiveCharacterStats -> clamp-to-0). HealthApplyDamageSystem destroys a Destructible at 0 (occupancy auto-frees). EnemyAISystem fortress-targets the weighted-nearest of players+structures via the shared EnemyAIMath.PickWeightedNearest (StructureAggroWeight TuningConfig knob, <1 prefers structures, squared factor; snapshot above the early-return so an undefended base is razed). Persistence v3: per-structure HP threaded through 5 sites (SaveData/PendingStructure/scan-guarded/BaseRestore same-ECB born-correct/WorldLauncher via SaveApply.ToPending); SaveService floor-gate [2,3] loads old saves. Loss feedback: proximity-gated StructureFeedbackSystem; CombatFeedbackSystem suppressed for structures. Pre-code review caught the DamageEvent-buffer crash blocker + 8 majors; post-code review clean. See DR-032. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-11 23:53:34 -07:00
parent 35d33f12c1
commit 73cfe2943d
21 changed files with 426 additions and 39 deletions
@@ -0,0 +1,14 @@
+using Unity.Entities;
+
+namespace ProjectM.Simulation
+{
+    /// <summary>
+    /// EB-1 — opt-in marker for an entity that <see cref="ProjectM.Server.HealthApplyDamageSystem"/> DESTROYS when
+    /// its <see cref="Health"/> hits 0 (alongside <c>TrainingDummyTag</c>/<c>EnemyTag</c>). Baked ONLY on the
+    /// player-built structure ghosts (Turret/Wall/Pylon) so "machines can die". DELIBERATELY a distinct tag rather
+    /// than gating on bare <see cref="PlacedStructure"/>: that identity is SHARED by the reserved M7 automation
+    /// machines (Harvester/Fabricator/Conveyor) whose teardown would silently drop in-flight conveyor cargo — the
+    /// tag lets each destructible opt in explicitly (zero-size, ghost-hash-neutral). See [[DR-031]] follow-on EB-1.
+    /// </summary>
+    public struct Destructible : IComponentData { }
+}