From 5fec649b9ce616cfd055d855ccdce73b3031d9f8 Mon Sep 17 00:00:00 2001
From: Evan <evanpelle@gmail.com>
Date: Sat, 5 Apr 2025 11:15:15 -0700
Subject: [PATCH] perf: PortExecution only check to spawn trade ships every 10
 ticks.

---
 src/core/configuration/DefaultConfig.ts | 12 ++++++------
 src/core/execution/PortExecution.ts     |  7 +++++++
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/src/core/configuration/DefaultConfig.ts b/src/core/configuration/DefaultConfig.ts
index 7d2d7b99c..33da4cbc2 100644
--- a/src/core/configuration/DefaultConfig.ts
+++ b/src/core/configuration/DefaultConfig.ts
@@ -211,12 +211,12 @@ export class DefaultConfig implements Config {
     return 10000 + 150 * Math.pow(dist, 1.1);
   }
   tradeShipSpawnRate(numberOfPorts: number): number {
-    if (numberOfPorts <= 3) return 180;
-    if (numberOfPorts <= 5) return 250;
-    if (numberOfPorts <= 8) return 350;
-    if (numberOfPorts <= 10) return 400;
-    if (numberOfPorts <= 12) return 450;
-    return 500;
+    if (numberOfPorts <= 3) return 18;
+    if (numberOfPorts <= 5) return 25;
+    if (numberOfPorts <= 8) return 35;
+    if (numberOfPorts <= 10) return 40;
+    if (numberOfPorts <= 12) return 45;
+    return 50;
   }
 
   unitInfo(type: UnitType): UnitInfo {
diff --git a/src/core/execution/PortExecution.ts b/src/core/execution/PortExecution.ts
index b1169b3aa..6e44eeb56 100644
--- a/src/core/execution/PortExecution.ts
+++ b/src/core/execution/PortExecution.ts
@@ -17,6 +17,7 @@ export class PortExecution implements Execution {
   private mg: Game;
   private port: Unit;
   private random: PseudoRandom;
+  private checkOffset: number;
 
   constructor(
     private _owner: PlayerID,
@@ -31,6 +32,7 @@ export class PortExecution implements Execution {
     }
     this.mg = mg;
     this.random = new PseudoRandom(mg.ticks());
+    this.checkOffset = mg.ticks() % 10;
   }
 
   tick(ticks: number): void {
@@ -55,6 +57,11 @@ export class PortExecution implements Execution {
       this._owner = this.port.owner().id();
     }
 
+    // Only check every 10 ticks for performance.
+    if ((this.mg.ticks() + this.checkOffset) % 10 != 0) {
+      return;
+    }
+
     const totalNbOfPorts = this.mg.units(UnitType.Port).length;
     if (
       !this.random.chance(this.mg.config().tradeShipSpawnRate(totalNbOfPorts))