Update TradeShipExecution.ts

src/core/execution/TradeShipExecution.ts

@@ -57,12 +57,12 @@ export class TradeShipExecution implements Execution {
     }
 
     if (this.origOwner != this.tradeShip.owner()) {
-      // Store as variable in case ship is recaptured by previous owner
+    
       this.wasCaptured = true;
     }
 
     // If a player captures another player's port while trading we should delete
-    // the ship.
+    // the ship
     if (this._dstPort.owner().id() == this.srcPort.owner().id()) {
       this.tradeShip.delete(false);
       this.active = false;
@@ -94,21 +94,48 @@ export class TradeShipExecution implements Execution {
       }
     }
 
-    const result = this.pathFinder.nextTile(
-      this.tradeShip.tile(),
-      this._dstPort.tile(),
-    );
+    const currentTile = this.tradeShip.tile();
+    const dstPort = this._dstPort;
+
+ 
+    if (!dstPort.data) {
+      dstPort.data = {};
+    }
+
+
+    if (dstPort.data.pathCache) {
+      const key = `${this.mg.x(currentTile)},${this.mg.y(currentTile)}`;
+      const cachedNextTile = dstPort.data.pathCache.get(key);
+      if (cachedNextTile) {
+      
+        if (this.mg.isWater(cachedNextTile) && this.mg.isShoreline(cachedNextTile)) {
+          this.tradeShip.setSafeFromPirates();
+        }
+        this.tradeShip.move(cachedNextTile);
+        return;
+      }
+    }
+
+    
+    const result = this.pathFinder.nextTile(currentTile, dstPort.tile());
 
     switch (result.type) {
       case PathFindResultType.Completed:
         this.complete();
         break;
       case PathFindResultType.Pending:
-        // Fire unit event to rerender.
+        // Fire unit event to rerender
         this.tradeShip.move(this.tradeShip.tile());
         break;
       case PathFindResultType.NextTile:
-        // Update safeFromPirates status
+        
+        if (!dstPort.data.pathCache) {
+          dstPort.data.pathCache = new Map<string, TileRef>();
+        }
+        
+        const key = `${this.mg.x(currentTile)},${this.mg.y(currentTile)}`;
+        dstPort.data.pathCache.set(key, result.tile);
+        
         if (this.mg.isWater(result.tile) && this.mg.isShoreline(result.tile)) {
           this.tradeShip.setSafeFromPirates();
         }