feat: process priority

HMCLCore/src/main/java/org/jackhuang/hmcl/game/LaunchOptions.java

@@ -1,6 +1,6 @@
 /*
  * Hello Minecraft! Launcher
- * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ * Copyright (C) 2021  huangyuhui <huanghongxun2008@126.com> and contributors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -55,6 +55,7 @@ public class LaunchOptions implements Serializable {
     private String preLaunchCommand;
     private NativesDirectoryType nativesDirType;
     private String nativesDir;
+    private ProcessPriority processPriority;
 
     /**
      * The game directory
@@ -217,6 +218,13 @@ public class LaunchOptions implements Serializable {
         return nativesDir;
     }
 
+    /**
+     * Process priority
+     */
+    public ProcessPriority getProcessPriority() {
+        return processPriority;
+    }
+
     public static class Builder {
 
         private final LaunchOptions options = new LaunchOptions();
@@ -489,5 +497,10 @@ public class LaunchOptions implements Serializable {
             return this;
         }
 
+        public Builder setProcessPriority(ProcessPriority processPriority) {
+            options.processPriority = processPriority;
+            return this;
+        }
+
     }
 }

HMCLCore/src/main/java/org/jackhuang/hmcl/game/ProcessPriority.java

@@ -0,0 +1,26 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2021  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.game;
+
+public enum ProcessPriority {
+    LOW,
+    BELOW_NORMAL,
+    NORMAL,
+    ABOVE_NORMAL,
+    HIGH
+}

HMCLCore/src/main/java/org/jackhuang/hmcl/launch/DefaultLauncher.java

@@ -71,9 +71,43 @@ public class DefaultLauncher extends Launcher {
     private CommandBuilder generateCommandLine(File nativeFolder) throws IOException {
         CommandBuilder res = new CommandBuilder();
 
+        switch (options.getProcessPriority()) {
+            case HIGH:
+                if (OperatingSystem.CURRENT_OS == OperatingSystem.WINDOWS) {
+                    res.add("cmd", "/C", "start", "unused title", "/B", "/high");
+                } else if (OperatingSystem.CURRENT_OS == OperatingSystem.LINUX) {
+                    res.add("nice", "-n", "-5");
+                }
+                break;
+            case ABOVE_NORMAL:
+                if (OperatingSystem.CURRENT_OS == OperatingSystem.WINDOWS) {
+                    res.add("cmd", "/C", "start", "unused title", "/B", "/abovenormal");
+                } else if (OperatingSystem.CURRENT_OS == OperatingSystem.LINUX) {
+                    res.add("nice", "-n", "-1");
+                }
+                break;
+            case NORMAL:
+                // do nothing
+                break;
+            case BELOW_NORMAL:
+                if (OperatingSystem.CURRENT_OS == OperatingSystem.WINDOWS) {
+                    res.add("cmd", "/C", "start", "unused title", "/B", "/belownormal");
+                } else if (OperatingSystem.CURRENT_OS == OperatingSystem.LINUX) {
+                    res.add("nice", "-n", "1");
+                }
+                break;
+            case LOW:
+                if (OperatingSystem.CURRENT_OS == OperatingSystem.WINDOWS) {
+                    res.add("cmd", "/C", "start", "unused title", "/B", "/low");
+                } else if (OperatingSystem.CURRENT_OS == OperatingSystem.LINUX) {
+                    res.add("nice", "-n", "5");
+                }
+                break;
+        }
+
         // Executable
         if (StringUtils.isNotBlank(options.getWrapper()))
-            res.add(options.getWrapper());
+            res.addAllWithoutParsing(StringUtils.tokenize(options.getWrapper()));
 
         res.add(options.getJava().getBinary().toString());