Merge branch 'main' into 2393-show-boat-troops-as-attacking-troops

src/core/game/Game.ts

@@ -451,6 +451,7 @@ export interface Unit {
   toUpdate(): UnitUpdate;
   hasTrainStation(): boolean;
   setTrainStation(trainStation: boolean): void;
+  wasDestroyedByEnemy(): boolean;
 
   // Train
   trainType(): TrainType | undefined;

src/core/game/UnitImpl.ts

@@ -24,6 +24,7 @@ export class UnitImpl implements Unit {
   private _retreating: boolean = false;
   private _targetedBySAM = false;
   private _reachedTarget = false;
+  private _wasDestroyedByEnemy: boolean = false;
   private _lastSetSafeFromPirates: number; // Only for trade ships
   private _constructionType: UnitType | undefined;
   private _lastOwner: PlayerImpl | null = null;
@@ -254,6 +255,10 @@ export class UnitImpl implements Unit {
     if (!this.isActive()) {
       throw new Error(`cannot delete ${this} not active`);
     }
+
+    // Record whether this unit was destroyed by an enemy (vs. arrived / retreated)
+    this._wasDestroyedByEnemy = destroyer !== undefined;
+
     this._owner._units = this._owner._units.filter((b) => b !== this);
     this._active = false;
     this.mg.addUpdate(this.toUpdate());
@@ -307,6 +312,10 @@ export class UnitImpl implements Unit {
     return this._active;
   }
 
+  wasDestroyedByEnemy(): boolean {
+    return this._wasDestroyedByEnemy;
+  }
+
   retreating(): boolean {
     return this._retreating;
   }