From 00cd20a6e99923b74ce5262b2b28baae912269cb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=BE=9E=E5=BA=90?=
 <109708109+CiiLu@users.noreply.github.com>
Date: Thu, 3 Sep 2026 21:56:15 +0800
Subject: [PATCH] =?UTF-8?q?=E7=AE=80=E5=8C=96=20`DefaultLauncher#getEnvVar?=
 =?UTF-8?q?s`=20(#6197)?=
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Content-Transfer-Encoding: 8bit

Co-authored-by: Glavo <zjx001202@gmail.com>
---
 .../hmcl/addon/mod/ModLoaderType.java         | 30 ++++++++++++++-----
 .../hmcl/launch/DefaultLauncher.java          | 26 ++++------------
 2 files changed, 28 insertions(+), 28 deletions(-)

diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/addon/mod/ModLoaderType.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/addon/mod/ModLoaderType.java
index 61ba46cea8..24ae055b66 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/addon/mod/ModLoaderType.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/addon/mod/ModLoaderType.java
@@ -17,13 +17,27 @@
  */
 package org.jackhuang.hmcl.addon.mod;
 
+import org.jetbrains.annotations.NotNullByDefault;
+import org.jetbrains.annotations.Nullable;
+
+@NotNullByDefault
 public enum ModLoaderType {
-    UNKNOWN,
-    FORGE,
-    CLEANROOM,
-    NEO_FORGE,
-    FABRIC,
-    QUILT,
-    LITE_LOADER,
-    LEGACY_FABRIC
+    UNKNOWN(null),
+    FORGE("INST_FORGE"),
+    CLEANROOM("INST_CLEANROOM"),
+    NEO_FORGE("INST_NEOFORGE"),
+    FABRIC("INST_FABRIC"),
+    QUILT("INST_QUILT"),
+    LITE_LOADER("INST_LITELOADER"),
+    LEGACY_FABRIC("INST_LEGACYFABRIC");
+
+    private final @Nullable String envVarName;
+
+    ModLoaderType(@Nullable String envVarName) {
+        this.envVarName = envVarName;
+    }
+
+    public @Nullable String getEnvVarName() {
+        return envVarName;
+    }
 }
diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/launch/DefaultLauncher.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/launch/DefaultLauncher.java
index 82f16243a2..b483dbe138 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/launch/DefaultLauncher.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/launch/DefaultLauncher.java
@@ -18,6 +18,7 @@
 package org.jackhuang.hmcl.launch;
 
 import org.glavo.uuid.UUIDs;
+import org.jackhuang.hmcl.addon.mod.ModLoaderType;
 import org.jackhuang.hmcl.auth.AuthInfo;
 import org.jackhuang.hmcl.game.*;
 import org.jackhuang.hmcl.util.Lang;
@@ -799,30 +800,15 @@ public class DefaultLauncher extends Launcher {
             }
         }
 
-        if (instance.hasComponent(GameComponentType.FORGE)) {
-            env.put("INST_FORGE", "1");
-        }
-        if (instance.hasComponent(GameComponentType.CLEANROOM)) {
-            env.put("INST_CLEANROOM", "1");
-        }
-        if (instance.hasComponent(GameComponentType.NEO_FORGE)) {
-            env.put("INST_NEOFORGE", "1");
-        }
-        if (instance.hasComponent(GameComponentType.LITELOADER)) {
-            env.put("INST_LITELOADER", "1");
-        }
-        if (instance.hasComponent(GameComponentType.FABRIC)) {
-            env.put("INST_FABRIC", "1");
+        for (ModLoaderType modLoader : instance.getModLoaders()) {
+            if (modLoader.getEnvVarName() != null) {
+                env.put(modLoader.getEnvVarName(), "1");
+            }
         }
+
         if (instance.hasComponent(GameComponentType.OPTIFINE)) {
             env.put("INST_OPTIFINE", "1");
         }
-        if (instance.hasComponent(GameComponentType.QUILT)) {
-            env.put("INST_QUILT", "1");
-        }
-        if (instance.hasComponent(GameComponentType.LEGACY_FABRIC)) {
-            env.put("INST_LEGACYFABRIC", "1");
-        }
 
         env.putAll(options.getEnvironmentVariables());