From 016dbe67d9d42f5e21382995d10658904c679059 Mon Sep 17 00:00:00 2001
From: phyzical <5182053+phyzical@users.noreply.github.com>
Date: Wed, 17 Aug 2022 17:46:18 +0800
Subject: [PATCH] add an early out if already researched

hotfix/3977

File List:
src/Corporation/Actions.ts
---
 src/Corporation/Actions.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Corporation/Actions.ts b/src/Corporation/Actions.ts
index 55c6b646f..fbcad46f3 100644
--- a/src/Corporation/Actions.ts
+++ b/src/Corporation/Actions.ts
@@ -455,6 +455,7 @@ export function Research(division: IIndustry, researchName: string): void {
   if (!allResearch.includes(researchName)) throw new Error(`No research named '${researchName}'`);
   const research = ResearchMap[researchName];
 
+  if (division.researched[researchName]) return;
   if (division.sciResearch.qty < research.cost)
     throw new Error(`You do not have enough Scientific Research for ${research.name}`);
   division.sciResearch.qty -= research.cost;