Add: Common folder to save libraries and assets

HMCL/src/core/java/org/jackhuang/hellominecraft/launcher/api/event/version/MinecraftLibraryPathEvent.java

@@ -0,0 +1,52 @@
+/*
+ * Hello Minecraft! Launcher.
+ * Copyright (C) 2013  huangyuhui <huanghongxun2008@126.com>
+ * 
+ * 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 {http://www.gnu.org/licenses/}.
+ */
+package org.jackhuang.hellominecraft.launcher.api.event.version;
+
+import java.io.File;
+import java.util.EventObject;
+import org.jackhuang.hellominecraft.util.Wrapper;
+
+/**
+ * This event gets fired when we getting minecraft library path.
+ * <br>
+ * This event is fired on the {@link org.jackhuang.hellominecraft.api.HMCLAPI#EVENT_BUS}
+ * @param source {@link org.jackhuang.hellominecraft.launcher.core.version.MinecraftLibrary}
+ * @param {@code Wrapper<File>} modify this thing to change to your wanted mc lib.
+ * @author huangyuhui
+ */
+public class MinecraftLibraryPathEvent extends EventObject {
+    
+    String location;
+    Wrapper<File> file;
+    
+    public MinecraftLibraryPathEvent(Object source, String location, Wrapper<File> value) {
+        super(source);
+        this.location = location;
+        this.file = value;
+    }
+
+    public String getLocation() {
+        return location;
+    }
+
+    public Wrapper<File> getFile() {
+        return file;
+    }
+    
+    
+}

HMCL/src/core/java/org/jackhuang/hellominecraft/launcher/core/asset/AssetsMojangLoader.java

@@ -50,9 +50,9 @@ public class AssetsMojangLoader extends IAssetsHandler {
     public Task getList(final MinecraftVersion mv, final IMinecraftAssetService mp) {
         Objects.requireNonNull(mv);
         String assetsId = mv.getAssetsIndex().getId();
-        File assets = mp.getAssets();
+        File assets = mp.getAssets(assetsId);
         HMCLog.log("Gathering asset index: " + assetsId);
-        File f = IOUtils.tryGetCanonicalFile(new File(assets, "indexes/" + assetsId + ".json"));
+        File f = mp.getIndexFile(assetsId);
         return new TaskInfo("Gather asset index") {
             @Override
             public Collection<Task> getDependTasks() {
@@ -72,7 +72,7 @@ public class AssetsMojangLoader extends IAssetsHandler {
                 AssetsIndex o = C.GSON.fromJson(result, AssetsIndex.class);
                 assetsDownloadURLs = new ArrayList<>();
                 assetsLocalNames = new ArrayList<>();
-                contents = new ArrayList<>();
+                assetsObjects = new ArrayList<>();
                 HashSet<String> loadedHashes = new HashSet<>();
                 int pgs = 0;
                 if (o != null && o.getFileMap() != null)
@@ -80,13 +80,9 @@ public class AssetsMojangLoader extends IAssetsHandler {
                         if (loadedHashes.contains(e.getValue().getHash()))
                             continue;
                         loadedHashes.add(e.getValue().getHash());
-                        Contents c = new Contents();
+                        assetsObjects.add(e.getValue());
-                        c.eTag = e.getValue().getHash();
+                        assetsDownloadURLs.add(e.getValue().getLocation());
-                        c.key = c.eTag.substring(0, 2) + "/" + e.getValue().getHash();
+                        assetsLocalNames.add(mp.getAssetObject(assetsId, e.getValue()));
-                        c.size = e.getValue().getSize();
-                        contents.add(c);
-                        assetsDownloadURLs.add(c.key);
-                        assetsLocalNames.add(new File(assets, "objects" + File.separator + c.key.replace("/", File.separator)));
                         if (ppl != null)
                             ppl.setProgress(this, ++pgs, o.getFileMap().size());
                     }

HMCL/src/core/java/org/jackhuang/hellominecraft/launcher/core/asset/AssetsObject.java

@@ -34,7 +34,9 @@ public class AssetsObject {
         this.size = size;
     }
 
-    public AssetsObject() {
+    public AssetsObject(String hash, long size) {
+        this.hash = hash;
+        this.size = size;
     }
 
     public String getHash() {
@@ -44,6 +46,10 @@ public class AssetsObject {
     public long getSize() {
         return this.size;
     }
+    
+    public String getLocation() {
+        return hash.substring(0, 2) + "/" + hash;
+    }
 
     @Override
     public boolean equals(Object o) {

HMCL/src/core/java/org/jackhuang/hellominecraft/launcher/core/asset/Contents.java

@@ -1,72 +0,0 @@
-/*
- * Hello Minecraft! Launcher.
- * Copyright (C) 2013  huangyuhui <huanghongxun2008@126.com>
- *
- * 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 {http://www.gnu.org/licenses/}.
- */
-package org.jackhuang.hellominecraft.launcher.core.asset;
-
-/**
- *
- * @author huangyuhui
- */
-public class Contents {
-
-    public String key, eTag, lastModified, storageClass;
-
-    public Contents() {
-    }
-
-    public String getKey() {
-        return key;
-    }
-
-    public void setKey(String key) {
-        this.key = key;
-    }
-
-    public String geteTag() {
-        return eTag;
-    }
-
-    public void seteTag(String eTag) {
-        this.eTag = eTag;
-    }
-
-    public String getLastModified() {
-        return lastModified;
-    }
-
-    public void setLastModified(String lastModified) {
-        this.lastModified = lastModified;
-    }
-
-    public String getStorageClass() {
-        return storageClass;
-    }
-
-    public void setStorageClass(String storageClass) {
-        this.storageClass = storageClass;
-    }
-
-    public long getSize() {
-        return size;
-    }
-
-    public void setSize(long size) {
-        this.size = size;
-    }
-    public long size;
-
-}

HMCL/src/core/java/org/jackhuang/hellominecraft/launcher/core/asset/IAssetsHandler.java

@@ -45,7 +45,7 @@ public abstract class IAssetsHandler {
     protected ArrayList<String> assetsDownloadURLs;
     protected ArrayList<File> assetsLocalNames;
     protected final String name;
-    protected List<Contents> contents;
+    protected List<AssetsObject> assetsObjects;
 
     public IAssetsHandler(String name) {
         this.name = name;
@@ -98,7 +98,7 @@ public abstract class IAssetsHandler {
 
         @Override
         public void executeTask(boolean areDependTasksSucceeded) {
-            if (assetsDownloadURLs == null || assetsLocalNames == null || contents == null)
+            if (assetsDownloadURLs == null || assetsLocalNames == null || assetsObjects == null)
                 throw new IllegalStateException(C.i18n("assets.not_refreshed"));
             int max = assetsDownloadURLs.size();
             al = new ArrayList<>();
@@ -117,7 +117,7 @@ public abstract class IAssetsHandler {
                         FileInputStream fis = FileUtils.openInputStream(location);
                         String sha = DigestUtils.sha1Hex(IOUtils.toByteArray(fis));
                         IOUtils.closeQuietly(fis);
-                        if (contents.get(i).geteTag().equals(sha)) {
+                        if (assetsObjects.get(i).getHash().equals(sha)) {
                             ++hasDownloaded;
                             HMCLog.log("File " + assetsLocalNames.get(i) + " has been downloaded successfully, skipped downloading.");
                             if (ppl != null)
@@ -130,7 +130,7 @@ public abstract class IAssetsHandler {
                     need = !location.exists();
                 }
                 if (need)
-                    al.add(new FileDownloadTask(url, location).setTag(contents.get(i).geteTag()));
+                    al.add(new FileDownloadTask(url, location).setTag(assetsObjects.get(i).getHash()));
             }
         }
 

HMCL/src/core/java/org/jackhuang/hellominecraft/launcher/core/asset/MinecraftAssetService.java

@@ -70,7 +70,7 @@ public class MinecraftAssetService extends IMinecraftAssetService {
 
     @Override
     public Task downloadMinecraftAssetsIndex(AssetIndexDownloadInfo assetIndex) {
-        File assetsLocation = getAssets();
+        File assetsLocation = getAssets(assetIndex.getId());
         if (!FileUtils.makeDirectory(assetsLocation))
             HMCLog.warn("Failed to make directories: " + assetsLocation);
         File assetsIndex = getIndexFile(assetIndex.getId());
@@ -100,7 +100,7 @@ public class MinecraftAssetService extends IMinecraftAssetService {
 
     @Override
     public boolean downloadMinecraftAssetsIndexAsync(AssetIndexDownloadInfo assetIndex) {
-        File assetsDir = getAssets();
+        File assetsDir = getAssets(assetIndex.getId());
         if (!FileUtils.makeDirectory(assetsDir))
             HMCLog.warn("Failed to make directories: " + assetsDir);
         File assetsIndex = getIndexFile(assetIndex.getId());
@@ -111,8 +111,8 @@ public class MinecraftAssetService extends IMinecraftAssetService {
                 HMCLog.warn("Failed to rename " + assetsIndex + " to " + renamed);
         }
         if (TaskWindow.factory()
-            .append(new FileDownloadTask(assetIndex.getUrl(service.getDownloadType()), IOUtils.tryGetCanonicalFile(assetsIndex), assetIndex.sha1).setTag(assetIndex.getId() + ".json"))
+                .append(new FileDownloadTask(assetIndex.getUrl(service.getDownloadType()), IOUtils.tryGetCanonicalFile(assetsIndex), assetIndex.sha1).setTag(assetIndex.getId() + ".json"))
-            .execute()) {
+                .execute()) {
             if (renamed != null && !renamed.delete())
                 HMCLog.warn("Failed to delete " + renamed + ", maybe you should do it.");
             return true;
@@ -123,30 +123,31 @@ public class MinecraftAssetService extends IMinecraftAssetService {
     }
 
     @Override
-    public File getAssets() {
+    public File getAssets(String assetId) {
         return new File(service.baseDirectory(), "assets");
     }
-    
-    private File getIndexFile(String assetVersion) {
-        return new File(getAssets(), "indexes/" + assetVersion + ".json");
-    }
 
     @Override
-    public File getAssetObject(String assetVersion, String name) throws IOException {
+    public File getIndexFile(String assetId) {
-        try {
+        return new File(getAssets(assetId), "indexes/" + assetId + ".json");
-            AssetsIndex index = (AssetsIndex) C.GSON.fromJson(FileUtils.read(getIndexFile(assetVersion), "UTF-8"), AssetsIndex.class);
+    }
 
-            String hash = ((AssetsObject) index.getFileMap().get(name)).getHash();
+    @Override
-            return new File(getAssets(), "objects/" + hash.substring(0, 2) + "/" + hash);
+    public File getAssetObject(String assetId, String name) throws IOException {
+        try {
+            AssetsIndex index = (AssetsIndex) C.GSON.fromJson(FileUtils.read(getIndexFile(assetId), "UTF-8"), AssetsIndex.class);
+            return getAssetObject(assetId, (AssetsObject) index.getFileMap().get(name));
         } catch (JsonSyntaxException e) {
             throw new IOException("Assets file format malformed.", e);
         }
     }
 
-    private boolean checkAssetsExistance(AssetIndexDownloadInfo assetIndex) {
+    protected boolean checkAssetsExistance(AssetIndexDownloadInfo assetIndex) {
-        File indexFile = getIndexFile(assetIndex.getId());
+        String assetId = assetIndex.getId();
+        File indexFile = getIndexFile(assetId);
+        File assetDir = getAssets(assetId);
 
-        if (!getAssets().exists() || !indexFile.isFile())
+        if (!getAssets(assetId).exists() || !indexFile.isFile())
             return false;
 
         try {
@@ -156,7 +157,7 @@ public class MinecraftAssetService extends IMinecraftAssetService {
             if (index == null)
                 return false;
             for (Map.Entry<String, AssetsObject> entry : index.getFileMap().entrySet())
-                if (!new File(getAssets(), "objects/" + ((AssetsObject) entry.getValue()).getHash().substring(0, 2) + "/" + ((AssetsObject) entry.getValue()).getHash()).exists())
+                if (!assetObjectPath(assetDir, (AssetsObject) entry.getValue()).exists())
                     return false;
             return true;
         } catch (IOException | JsonSyntaxException e) {
@@ -164,8 +165,8 @@ public class MinecraftAssetService extends IMinecraftAssetService {
         }
     }
 
-    private File reconstructAssets(AssetIndexDownloadInfo assetIndex) {
+    protected File reconstructAssets(AssetIndexDownloadInfo assetIndex) {
-        File assetsDir = getAssets();
+        File assetsDir = getAssets(assetIndex.getId());
         String assetVersion = assetIndex.getId();
         File indexFile = getIndexFile(assetVersion);
         File virtualRoot = new File(new File(assetsDir, "virtual"), assetVersion);
@@ -187,7 +188,7 @@ public class MinecraftAssetService extends IMinecraftAssetService {
                 int tot = index.getFileMap().entrySet().size();
                 for (Map.Entry<String, AssetsObject> entry : index.getFileMap().entrySet()) {
                     File target = new File(virtualRoot, (String) entry.getKey());
-                    File original = new File(assetsDir, "objects/" + ((AssetsObject) entry.getValue()).getHash().substring(0, 2) + "/" + ((AssetsObject) entry.getValue()).getHash());
+                    File original = assetObjectPath(assetsDir, (AssetsObject) entry.getValue());
                     if (original.exists()) {
                         cnt++;
                         if (!target.isFile())
@@ -205,6 +206,15 @@ public class MinecraftAssetService extends IMinecraftAssetService {
         return virtualRoot;
     }
 
+    @Override
+    public File getAssetObject(String assetId, AssetsObject object) {
+        return assetObjectPath(getAssets(assetId), object);
+    }
+    
+    public File assetObjectPath(File assetDir, AssetsObject object) {
+        return new File(assetDir, "objects/" + object.getLocation());
+    }
+
     public final IAssetProvider ASSET_PROVIDER_IMPL = (t, allow) -> {
         if (allow && !checkAssetsExistance(t.getAssetsIndex()))
             if (MessageBox.show(C.i18n("assets.no_assets"), MessageBox.YES_NO_OPTION) == MessageBox.YES_OPTION)

HMCL/src/core/java/org/jackhuang/hellominecraft/launcher/core/launch/MinecraftLoader.java

@@ -85,7 +85,7 @@ public class MinecraftLoader extends AbstractMinecraftLoader {
             t = t.replace("${version_type}", options.getType());
             t = t.replace("${game_directory}", service.version().getRunDirectory(version.id).getAbsolutePath());
             t = t.replace("${game_assets}", game_assets);
-            t = t.replace("${assets_root}", service.asset().getAssets().getAbsolutePath());
+            t = t.replace("${assets_root}", service.asset().getAssets(version.getAssetsIndex().getId()).getAbsolutePath());
             t = t.replace("${auth_access_token}", lr.getAccessToken());
             t = t.replace("${user_type}", lr.getUserType());
             t = t.replace("${assets_index_name}", version.getAssetsIndex().getId());

HMCL/src/core/java/org/jackhuang/hellominecraft/launcher/core/service/IMinecraftAssetService.java

@@ -20,6 +20,7 @@ package org.jackhuang.hellominecraft.launcher.core.service;
 import java.io.File;
 import java.io.IOException;
 import org.jackhuang.hellominecraft.launcher.core.GameException;
+import org.jackhuang.hellominecraft.launcher.core.asset.AssetsObject;
 import org.jackhuang.hellominecraft.launcher.core.version.AssetIndexDownloadInfo;
 import org.jackhuang.hellominecraft.util.task.Task;
 
@@ -35,20 +36,24 @@ public abstract class IMinecraftAssetService extends IMinecraftBasicService {
 
     public abstract Task downloadAssets(String mcVersion) throws GameException;
 
-    public abstract File getAssets();
+    public abstract File getAssets(String assetId);
+    
+    public abstract File getIndexFile(String assetId);
 
     /**
      * Redownload the Asset index json of the given version.
      *
-     * @param a the given version name
+     * @param mcVersion the given version name
      *
      * @return Is the action successful?
      */
-    public abstract boolean refreshAssetsIndex(String a) throws GameException;
+    public abstract boolean refreshAssetsIndex(String mcVersion) throws GameException;
 
-    public abstract boolean downloadMinecraftAssetsIndexAsync(AssetIndexDownloadInfo assetsId);
+    public abstract boolean downloadMinecraftAssetsIndexAsync(AssetIndexDownloadInfo assetId);
 
-    public abstract Task downloadMinecraftAssetsIndex(AssetIndexDownloadInfo assetsId);
+    public abstract Task downloadMinecraftAssetsIndex(AssetIndexDownloadInfo assetId);
 
     public abstract File getAssetObject(String assetVersion, String name) throws IOException;
+    
+    public abstract File getAssetObject(String assetId, AssetsObject assetsObject);
 }

HMCL/src/core/java/org/jackhuang/hellominecraft/launcher/core/version/AssetIndexDownloadInfo.java

@@ -40,10 +40,6 @@ public class AssetIndexDownloadInfo extends GameDownloadInfo {
         return dt.getProvider().getIndexesDownloadURL() + id + ".json";
     }
 
-    public String getId() {
-        return id;
-    }
-
     public int getTotalSize() {
         return totalSize;
     }

HMCL/src/core/java/org/jackhuang/hellominecraft/launcher/core/version/GameDownloadInfo.java

@@ -36,7 +36,7 @@ public class GameDownloadInfo implements Cloneable {
     /**
      * Ready for AssetIndexDownloadInfo, and GameDownloadInfo also need this.
      */
-    public String id = null;
+    protected String id;
 
     /**
      * Get the game download url.
@@ -68,6 +68,10 @@ public class GameDownloadInfo implements Cloneable {
         return dt.getProvider().getVersionsDownloadURL() + id + "/" + id + ".jar";
     }
 
+    public String getId() {
+        return id;
+    }
+
     @Override
     public Object clone() {
         try {

HMCL/src/core/java/org/jackhuang/hellominecraft/launcher/core/version/MinecraftLibrary.java

@@ -21,9 +21,12 @@ import com.google.gson.annotations.SerializedName;
 import java.io.File;
 import java.util.ArrayList;
 import java.util.HashMap;
+import org.jackhuang.hellominecraft.api.HMCLAPI;
+import org.jackhuang.hellominecraft.launcher.api.event.version.MinecraftLibraryPathEvent;
 import org.jackhuang.hellominecraft.util.sys.OS;
 import org.jackhuang.hellominecraft.util.sys.Platform;
 import org.jackhuang.hellominecraft.util.StrUtils;
+import org.jackhuang.hellominecraft.util.Wrapper;
 
 /**
  *
@@ -104,7 +107,9 @@ public class MinecraftLibrary extends IMinecraftLibrary {
         LibraryDownloadInfo info = getDownloadInfo();
         if (info == null)
             return null;
-        return new File(gameDir, "libraries/" + info.path);
+        MinecraftLibraryPathEvent event = new MinecraftLibraryPathEvent(this, "libraries/" + info.path, new Wrapper<>(new File(gameDir, "libraries/" + info.path)));
+        HMCLAPI.EVENT_BUS.fireChannel(event);
+        return event.getFile().getValue();
     }
 
     @Override

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/setting/Config.java

@@ -31,6 +31,7 @@ import org.jackhuang.hellominecraft.api.HMCLAPI;
 import org.jackhuang.hellominecraft.launcher.api.event.config.AuthenticatorChangedEvent;
 import org.jackhuang.hellominecraft.launcher.api.event.config.DownloadTypeChangedEvent;
 import org.jackhuang.hellominecraft.launcher.api.event.config.ThemeChangedEvent;
+import org.jackhuang.hellominecraft.launcher.core.MCUtils;
 import org.jackhuang.hellominecraft.util.sys.JdkVersion;
 import org.jackhuang.hellominecraft.util.sys.OS;
 
@@ -44,6 +45,8 @@ public final class Config implements Cloneable {
     private String last;
     @SerializedName("bgpath")
     private String bgpath;
+    @SerializedName("commonpath")
+    private String commonpath;
     @SerializedName("clientToken")
     private final String clientToken;
     @SerializedName("proxyHost")
@@ -152,6 +155,15 @@ public final class Config implements Cloneable {
         Settings.save();
     }
 
+    public String getCommonpath() {
+        return commonpath;
+    }
+
+    public void setCommonpath(String commonpath) {
+        this.commonpath = commonpath;
+        Settings.save();
+    }
+
     public String getClientToken() {
         return clientToken;
     }
@@ -210,6 +222,7 @@ public final class Config implements Cloneable {
         theme = 4;
         decorated = OS.os() == OS.LINUX;
         auth = new HashMap<>();
+        commonpath = MCUtils.getWorkingDirectory("hmcl").getAbsolutePath();
     }
 
     public DownloadType getDownloadSource() {

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/ui/GameSettingsPanel.java

@@ -87,7 +87,7 @@ public final class GameSettingsPanel extends RepaintPage implements DropTargetLi
 
     public GameSettingsPanel() {
         HMCLAPI.EVENT_BUS.channel(RefreshedVersionsEvent.class).register(t -> {
-            if (Settings.getLastProfile().service() == t.getValue())
+            if (Settings.getLastProfile().service() == t.getValue() && t.getValue().version().getVersions().isEmpty())
                 if (!showedNoVersion && Settings.getLastProfile().service().checkingModpack) {
                     showedNoVersion = true;
                     SwingUtilities.invokeLater(() -> {

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/ui/LauncherSettingsPanel.form

@@ -19,7 +19,7 @@
           <Group type="102" attributes="0">
               <EmptySpace max="-2" attributes="0"/>
               <Group type="103" groupAlignment="0" attributes="0">
-                  <Group type="102" alignment="0" attributes="0">
+                  <Group type="102" alignment="1" attributes="0">
                       <Component id="lblProxy" min="-2" max="-2" attributes="0"/>
                       <EmptySpace max="32767" attributes="0"/>
                       <Component id="lblProxyHost" min="-2" max="-2" attributes="0"/>
@@ -38,35 +38,9 @@
                       <EmptySpace max="-2" attributes="0"/>
                       <Component id="txtProxyPassword" min="-2" pref="80" max="-2" attributes="0"/>
                   </Group>
-                  <Group type="102" alignment="0" attributes="0">
-                      <Group type="103" groupAlignment="0" attributes="0">
-                          <Component id="lblDownloadSource" alignment="0" min="-2" max="-2" attributes="0"/>
-                          <Component id="lblTheme" alignment="0" min="-2" max="-2" attributes="0"/>
-                          <Component id="lblBackground" alignment="0" min="-2" max="-2" attributes="0"/>
-                          <Component id="lblLang" alignment="0" min="-2" max="-2" attributes="0"/>
-                      </Group>
-                      <EmptySpace max="-2" attributes="0"/>
-                      <Group type="103" groupAlignment="0" attributes="0">
-                          <Component id="cboLang" max="32767" attributes="0"/>
-                          <Group type="102" alignment="1" attributes="0">
-                              <Component id="txtBackgroundPath" pref="664" max="32767" attributes="0"/>
-                              <EmptySpace max="-2" attributes="0"/>
-                              <Component id="btnSelBackgroundPath" min="-2" max="-2" attributes="0"/>
-                          </Group>
-                          <Component id="cboDownloadSource" alignment="1" max="32767" attributes="0"/>
-                          <Component id="cboTheme" alignment="1" max="32767" attributes="0"/>
-                      </Group>
-                  </Group>
                   <Group type="102" attributes="0">
                       <Group type="103" groupAlignment="0" attributes="0">
-                          <Group type="102" alignment="0" attributes="0">
+                          <Component id="chkDecorated" min="-2" max="-2" attributes="0"/>
-                              <Component id="btnCheckUpdate" min="-2" max="-2" attributes="0"/>
-                              <EmptySpace max="-2" attributes="0"/>
-                              <Component id="btnMCBBS" min="-2" max="-2" attributes="0"/>
-                          </Group>
-                          <Component id="lblAbout" min="-2" max="-2" attributes="0"/>
-                          <Component id="lblModpack" alignment="0" min="-2" max="-2" attributes="0"/>
-                          <Component id="lblRestart" alignment="0" min="-2" max="-2" attributes="0"/>
                           <Group type="102" attributes="0">
                               <Component id="chkEnableShadow" min="-2" max="-2" attributes="0"/>
                               <EmptySpace max="-2" attributes="0"/>
@@ -74,10 +48,42 @@
                               <EmptySpace max="-2" attributes="0"/>
                               <Component id="chkEnableAnimation" min="-2" max="-2" attributes="0"/>
                           </Group>
-                          <Component id="chkDecorated" alignment="0" min="-2" max="-2" attributes="0"/>
+                          <Component id="lblAbout" alignment="0" min="-2" max="-2" attributes="0"/>
+                          <Group type="102" alignment="0" attributes="0">
+                              <Component id="btnCheckUpdate" min="-2" max="-2" attributes="0"/>
+                              <EmptySpace max="-2" attributes="0"/>
+                              <Component id="btnMCBBS" min="-2" max="-2" attributes="0"/>
+                          </Group>
+                          <Component id="lblModpack" alignment="0" min="-2" max="-2" attributes="0"/>
+                          <Component id="lblRestart" alignment="0" min="-2" max="-2" attributes="0"/>
                       </Group>
                       <EmptySpace min="0" pref="0" max="32767" attributes="0"/>
                   </Group>
+                  <Group type="102" alignment="0" attributes="0">
+                      <Group type="103" groupAlignment="0" attributes="0">
+                          <Component id="lblDownloadSource" alignment="0" min="-2" max="-2" attributes="0"/>
+                          <Component id="lblTheme" alignment="0" min="-2" max="-2" attributes="0"/>
+                          <Component id="lblBackground" alignment="0" min="-2" max="-2" attributes="0"/>
+                          <Component id="lblLang" alignment="0" min="-2" max="-2" attributes="0"/>
+                          <Component id="lblCommonPath" alignment="0" min="-2" max="-2" attributes="0"/>
+                      </Group>
+                      <EmptySpace max="-2" attributes="0"/>
+                      <Group type="103" groupAlignment="0" attributes="0">
+                          <Group type="102" alignment="0" attributes="0">
+                              <Component id="txtCommonPath" max="32767" attributes="0"/>
+                              <EmptySpace max="-2" attributes="0"/>
+                              <Component id="btnSetCommonPath" min="-2" max="-2" attributes="0"/>
+                          </Group>
+                          <Component id="cboLang" max="32767" attributes="0"/>
+                          <Group type="102" alignment="1" attributes="0">
+                              <Component id="txtBackgroundPath" pref="585" max="32767" attributes="0"/>
+                              <EmptySpace max="-2" attributes="0"/>
+                              <Component id="btnSelBackgroundPath" min="-2" max="-2" attributes="0"/>
+                          </Group>
+                          <Component id="cboDownloadSource" alignment="1" max="32767" attributes="0"/>
+                          <Component id="cboTheme" alignment="1" max="32767" attributes="0"/>
+                      </Group>
+                  </Group>
               </Group>
               <EmptySpace max="-2" attributes="0"/>
           </Group>
@@ -86,6 +92,12 @@
     <DimensionLayout dim="1">
       <Group type="103" groupAlignment="0" attributes="0">
           <Group type="102" alignment="0" attributes="0">
+              <EmptySpace max="-2" attributes="0"/>
+              <Group type="103" groupAlignment="3" attributes="0">
+                  <Component id="lblCommonPath" alignment="3" min="-2" max="-2" attributes="0"/>
+                  <Component id="txtCommonPath" alignment="3" min="-2" pref="26" max="-2" attributes="0"/>
+                  <Component id="btnSetCommonPath" alignment="3" min="-2" pref="26" max="-2" attributes="0"/>
+              </Group>
               <EmptySpace max="-2" attributes="0"/>
               <Group type="103" groupAlignment="3" attributes="0">
                   <Component id="lblBackground" alignment="3" min="-2" max="-2" attributes="0"/>
@@ -127,7 +139,7 @@
               </Group>
               <EmptySpace max="-2" attributes="0"/>
               <Component id="chkDecorated" min="-2" max="-2" attributes="0"/>
-              <EmptySpace pref="6" max="32767" attributes="0"/>
+              <EmptySpace max="-2" attributes="0"/>
               <Group type="103" groupAlignment="3" attributes="0">
                   <Component id="btnCheckUpdate" alignment="3" min="-2" pref="26" max="-2" attributes="0"/>
                   <Component id="btnMCBBS" alignment="3" max="32767" attributes="0"/>
@@ -138,7 +150,7 @@
               <Component id="lblModpack" min="-2" max="-2" attributes="0"/>
               <EmptySpace max="-2" attributes="0"/>
               <Component id="lblAbout" min="-2" max="-2" attributes="0"/>
-              <EmptySpace max="-2" attributes="0"/>
+              <EmptySpace min="-2" max="-2" attributes="0"/>
           </Group>
       </Group>
     </DimensionLayout>
@@ -367,5 +379,29 @@
         <EventHandler event="itemStateChanged" listener="java.awt.event.ItemListener" parameters="java.awt.event.ItemEvent" handler="chkEnableAnimationItemStateChanged"/>
       </Events>
     </Component>
+    <Component class="javax.swing.JLabel" name="lblCommonPath">
+      <Properties>
+        <Property name="text" type="java.lang.String" editor="org.netbeans.modules.i18n.form.FormI18nStringEditor">
+          <ResourceString bundle="org/jackhuang/hellominecraft/lang/I18N.properties" key="launcher.common_location" replaceFormat="C.i18n(&quot;{key}&quot;)"/>
+        </Property>
+      </Properties>
+    </Component>
+    <Component class="javax.swing.JTextField" name="txtCommonPath">
+      <Properties>
+        <Property name="toolTipText" type="java.lang.String" editor="org.netbeans.modules.i18n.form.FormI18nStringEditor">
+          <ResourceString bundle="org/jackhuang/hellominecraft/lang/I18N.properties" key="launcher.commpath_tooltip" replaceFormat="C.i18n(&quot;{key}&quot;)"/>
+        </Property>
+      </Properties>
+    </Component>
+    <Component class="javax.swing.JButton" name="btnSetCommonPath">
+      <Properties>
+        <Property name="text" type="java.lang.String" editor="org.netbeans.modules.i18n.form.FormI18nStringEditor">
+          <ResourceString bundle="org/jackhuang/hellominecraft/lang/I18N.properties" key="ui.button.explore" replaceFormat="C.i18n(&quot;{key}&quot;)"/>
+        </Property>
+      </Properties>
+      <Events>
+        <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="btnSetCommonPathActionPerformed"/>
+      </Events>
+    </Component>
   </SubComponents>
 </Form>

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/ui/LauncherSettingsPanel.java

@@ -64,6 +64,7 @@ public class LauncherSettingsPanel extends RepaintPage {
         cboLang.setSelectedIndex(id);
 
         txtBackgroundPath.setText(Settings.getInstance().getBgpath());
+        txtCommonPath.setText(Settings.getInstance().getCommonpath());
         txtProxyHost.setText(Settings.getInstance().getProxyHost());
         txtProxyPort.setText(Settings.getInstance().getProxyPort());
         txtProxyUsername.setText(Settings.getInstance().getProxyUserName());
@@ -118,6 +119,9 @@ public class LauncherSettingsPanel extends RepaintPage {
         btnMCBBS = new javax.swing.JButton();
         chkEnableBlur = new javax.swing.JCheckBox();
         chkEnableAnimation = new javax.swing.JCheckBox();
+        lblCommonPath = new javax.swing.JLabel();
+        txtCommonPath = new javax.swing.JTextField();
+        btnSetCommonPath = new javax.swing.JButton();
 
         cboDownloadSource.addItemListener(new java.awt.event.ItemListener() {
             public void itemStateChanged(java.awt.event.ItemEvent evt) {
@@ -252,6 +256,17 @@ public class LauncherSettingsPanel extends RepaintPage {
             }
         });
 
+        lblCommonPath.setText(C.i18n("launcher.common_location")); // NOI18N
+
+        txtCommonPath.setToolTipText(C.i18n("launcher.commpath_tooltip")); // NOI18N
+
+        btnSetCommonPath.setText(C.i18n("ui.button.explore")); // NOI18N
+        btnSetCommonPath.addActionListener(new java.awt.event.ActionListener() {
+            public void actionPerformed(java.awt.event.ActionEvent evt) {
+                btnSetCommonPathActionPerformed(evt);
+            }
+        });
+
         javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
         this.setLayout(layout);
         layout.setHorizontalGroup(
@@ -259,7 +274,7 @@ public class LauncherSettingsPanel extends RepaintPage {
             .addGroup(layout.createSequentialGroup()
                 .addContainerGap()
                 .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-                    .addGroup(layout.createSequentialGroup()
+                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                         .addComponent(lblProxy)
                         .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                         .addComponent(lblProxyHost)
@@ -279,42 +294,52 @@ public class LauncherSettingsPanel extends RepaintPage {
                         .addComponent(txtProxyPassword, javax.swing.GroupLayout.PREFERRED_SIZE, 80, javax.swing.GroupLayout.PREFERRED_SIZE))
                     .addGroup(layout.createSequentialGroup()
                         .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-                            .addComponent(lblDownloadSource)
+                            .addComponent(chkDecorated)
-                            .addComponent(lblTheme)
-                            .addComponent(lblBackground)
-                            .addComponent(lblLang))
-                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
-                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-                            .addComponent(cboLang, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
-                            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
-                                .addComponent(txtBackgroundPath, javax.swing.GroupLayout.DEFAULT_SIZE, 664, Short.MAX_VALUE)
-                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
-                                .addComponent(btnSelBackgroundPath))
-                            .addComponent(cboDownloadSource, javax.swing.GroupLayout.Alignment.TRAILING, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
-                            .addComponent(cboTheme, javax.swing.GroupLayout.Alignment.TRAILING, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
-                    .addGroup(layout.createSequentialGroup()
-                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-                            .addGroup(layout.createSequentialGroup()
-                                .addComponent(btnCheckUpdate)
-                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
-                                .addComponent(btnMCBBS))
-                            .addComponent(lblAbout, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
-                            .addComponent(lblModpack, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
-                            .addComponent(lblRestart)
                             .addGroup(layout.createSequentialGroup()
                                 .addComponent(chkEnableShadow)
                                 .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                 .addComponent(chkEnableBlur)
                                 .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                 .addComponent(chkEnableAnimation))
-                            .addComponent(chkDecorated))
+                            .addComponent(lblAbout, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
-                        .addGap(0, 0, Short.MAX_VALUE)))
+                            .addGroup(layout.createSequentialGroup()
+                                .addComponent(btnCheckUpdate)
+                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                                .addComponent(btnMCBBS))
+                            .addComponent(lblModpack, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
+                            .addComponent(lblRestart))
+                        .addGap(0, 0, Short.MAX_VALUE))
+                    .addGroup(layout.createSequentialGroup()
+                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+                            .addComponent(lblDownloadSource)
+                            .addComponent(lblTheme)
+                            .addComponent(lblBackground)
+                            .addComponent(lblLang)
+                            .addComponent(lblCommonPath))
+                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+                            .addGroup(layout.createSequentialGroup()
+                                .addComponent(txtCommonPath)
+                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                                .addComponent(btnSetCommonPath))
+                            .addComponent(cboLang, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
+                            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
+                                .addComponent(txtBackgroundPath, javax.swing.GroupLayout.DEFAULT_SIZE, 585, Short.MAX_VALUE)
+                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                                .addComponent(btnSelBackgroundPath))
+                            .addComponent(cboDownloadSource, javax.swing.GroupLayout.Alignment.TRAILING, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
+                            .addComponent(cboTheme, javax.swing.GroupLayout.Alignment.TRAILING, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))
                 .addContainerGap())
         );
         layout.setVerticalGroup(
             layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
             .addGroup(layout.createSequentialGroup()
                 .addContainerGap()
+                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
+                    .addComponent(lblCommonPath)
+                    .addComponent(txtCommonPath, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE)
+                    .addComponent(btnSetCommonPath, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE))
+                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                 .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                     .addComponent(lblBackground)
                     .addComponent(btnSelBackgroundPath, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE)
@@ -349,7 +374,7 @@ public class LauncherSettingsPanel extends RepaintPage {
                     .addComponent(chkEnableAnimation))
                 .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                 .addComponent(chkDecorated)
-                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 6, Short.MAX_VALUE)
+                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                 .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                     .addComponent(btnCheckUpdate, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE)
                     .addComponent(btnMCBBS, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
@@ -447,10 +472,29 @@ public class LauncherSettingsPanel extends RepaintPage {
         Settings.getInstance().setEnableAnimation(chkEnableAnimation.isSelected());
     }//GEN-LAST:event_chkEnableAnimationItemStateChanged
 
+    private void btnSetCommonPathActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnSetCommonPathActionPerformed
+        JSystemFileChooser fc = new JSystemFileChooser();
+        fc.setFileSelectionMode(JSystemFileChooser.DIRECTORIES_ONLY);
+        fc.setDialogTitle(C.i18n("launcher.choose_commonpath"));
+        fc.setMultiSelectionEnabled(false);
+        fc.showOpenDialog(this);
+        if (fc.getSelectedFile() == null)
+            return;
+        try {
+            String path = fc.getSelectedFile().getCanonicalPath();
+            txtCommonPath.setText(path);
+            Settings.getInstance().setCommonpath(path);
+        } catch (IOException e) {
+            HMCLog.warn("Failed to set common path.", e);
+            MessageBox.show(C.i18n("ui.label.failed_set") + e.getMessage());
+        }
+    }//GEN-LAST:event_btnSetCommonPathActionPerformed
+
     // Variables declaration - do not modify//GEN-BEGIN:variables
     private javax.swing.JButton btnCheckUpdate;
     private javax.swing.JButton btnMCBBS;
     private javax.swing.JButton btnSelBackgroundPath;
+    private javax.swing.JButton btnSetCommonPath;
     private javax.swing.JComboBox cboDownloadSource;
     private javax.swing.JComboBox cboLang;
     private javax.swing.JComboBox cboTheme;
@@ -460,6 +504,7 @@ public class LauncherSettingsPanel extends RepaintPage {
     private javax.swing.JCheckBox chkEnableShadow;
     private javax.swing.JLabel lblAbout;
     private javax.swing.JLabel lblBackground;
+    private javax.swing.JLabel lblCommonPath;
     private javax.swing.JLabel lblDownloadSource;
     private javax.swing.JLabel lblLang;
     private javax.swing.JLabel lblModpack;
@@ -471,6 +516,7 @@ public class LauncherSettingsPanel extends RepaintPage {
     private javax.swing.JLabel lblRestart;
     private javax.swing.JLabel lblTheme;
     private javax.swing.JTextField txtBackgroundPath;
+    private javax.swing.JTextField txtCommonPath;
     private javax.swing.JTextField txtProxyHost;
     private javax.swing.JTextField txtProxyPassword;
     private javax.swing.JTextField txtProxyPort;

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/util/HMCLAssetService.java

@@ -0,0 +1,47 @@
+/*
+ * Hello Minecraft! Launcher.
+ * Copyright (C) 2013  huangyuhui <huanghongxun2008@126.com>
+ * 
+ * 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 {http://www.gnu.org/licenses/}.
+ */
+package org.jackhuang.hellominecraft.launcher.util;
+
+import java.io.File;
+import org.jackhuang.hellominecraft.launcher.core.asset.MinecraftAssetService;
+import org.jackhuang.hellominecraft.launcher.core.service.IMinecraftService;
+import org.jackhuang.hellominecraft.launcher.setting.Settings;
+
+/**
+ *
+ * @author huang
+ */
+public class HMCLAssetService extends MinecraftAssetService {
+    
+    public HMCLAssetService(IMinecraftService service) {
+        super(service);
+    }
+    
+    private boolean useSelf(String assetId) {
+        return new File(service.baseDirectory(), "assets/indexes/" + assetId + ",json").exists();
+    }
+
+    @Override
+    public File getAssets(String assetId) {
+        if (useSelf(assetId))
+            return new File(service.baseDirectory(), "assets");
+        else
+            return new File(Settings.getInstance().getCommonpath(), "assets");
+    }
+    
+}

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/util/HMCLGameProvider.java

@@ -18,8 +18,11 @@
 package org.jackhuang.hellominecraft.launcher.util;
 
 import java.io.File;
+import org.jackhuang.hellominecraft.api.HMCLAPI;
+import org.jackhuang.hellominecraft.launcher.api.event.version.MinecraftLibraryPathEvent;
 import org.jackhuang.hellominecraft.launcher.core.version.GameDirType;
 import org.jackhuang.hellominecraft.launcher.core.version.MinecraftVersionManager;
+import org.jackhuang.hellominecraft.launcher.setting.Settings;
 import org.jackhuang.hellominecraft.launcher.setting.VersionSetting;
 
 /**
@@ -30,6 +33,11 @@ public class HMCLGameProvider extends MinecraftVersionManager {
 
     public HMCLGameProvider(HMCLMinecraftService p) {
         super(p);
+        
+        HMCLAPI.EVENT_BUS.channel(MinecraftLibraryPathEvent.class).register(t -> {
+            if (!t.getFile().getValue().exists())
+                t.getFile().setValue(new File(Settings.getInstance().getCommonpath(), t.getLocation()));
+        });
     }
 
     @Override

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/util/HMCLMinecraftService.java

@@ -75,7 +75,7 @@ public class HMCLMinecraftService extends IMinecraftService {
         HMCLAPI.EVENT_BUS.channel(LoadedOneVersionEvent.class).register(e -> loadVersionSetting(e.getValue()));
         this.mms = new MinecraftModService(this);
         this.mds = new MinecraftDownloadService(this);
-        this.mas = new MinecraftAssetService(this);
+        this.mas = new HMCLAssetService(this);
         this.mis = new MinecraftInstallerService(this);
     }
 

HMCUtils/src/main/java/org/jackhuang/hellominecraft/util/Wrapper.java

@@ -0,0 +1,39 @@
+/*
+ * Hello Minecraft! Launcher.
+ * Copyright (C) 2013  huangyuhui <huanghongxun2008@126.com>
+ * 
+ * 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 {http://www.gnu.org/licenses/}.
+ */
+package org.jackhuang.hellominecraft.util;
+
+/**
+ *
+ * @author huang
+ */
+public class Wrapper<T> {
+    T value;
+
+    public Wrapper(T value) {
+        this.value = value;
+    }
+
+    public T getValue() {
+        return value;
+    }
+
+    public void setValue(T value) {
+        this.value = value;
+    }
+    
+}

HMCUtils/src/main/resources/org/jackhuang/hellominecraft/lang/I18N.lang

@@ -308,11 +308,14 @@ mainwindow.no_version=No version found. Switch to Game Downloads Tab?
 launcher.about=<html>About Author<br/>Minecraft Forum ID: klkl6523<br/>Copyright (c) 2013 huangyuhui<br/>Opened source under GPL v3 license:http://github.com/huanghongxun/HMCL/<br/>This software used project Gson which is under Apache License 2.0, thanks contributors.</html>
 launcher.download_source=Download Source
 launcher.background_location=Background Location
+launcher.common_location=Common Location
 launcher.exit_failed=Failed to shutdown.
 launcher.versions_json_not_matched=The version %s is malformed! There are a json:%s in this version. Do you want to fix this problem?
 launcher.versions_json_not_matched_cannot_auto_completion=The version %s lost version information file, delete it?
 launcher.versions_json_not_formatted=The version information of %s is malformed! Redownload it?
 launcher.choose_bgpath=Choose background path.
+launcher.choose_commonpath=Choose common path.
+launcher.commpath_tooltip=<html><body>This app will save all game libraries and assets here unless there are existant files in game folder.</body></html>
 launcher.background_tooltip=<html><body>The laucher uses a default background.<br/>If you use custom background.png, link it and it will be used.<br />If there is "bg" subdirectory, this app will chooses one picture in "bgskin" randomly.<br />If you set the background setting, this app will use it.</body></html>
 launcher.update_launcher=Check for update
 launcher.enable_shadow=Enable Window Shadow

HMCUtils/src/main/resources/org/jackhuang/hellominecraft/lang/I18N.properties

@@ -308,11 +308,14 @@ mainwindow.no_version=No version found. Switch to Game Downloads Tab?
 launcher.about=<html>About Author<br/>Minecraft Forum ID: klkl6523<br/>Copyright (c) 2013 huangyuhui<br/>Opened source under GPL v3 license:http://github.com/huanghongxun/HMCL/<br/>This software used project Gson which is under Apache License 2.0, thanks contributors.</html>
 launcher.download_source=Download Source
 launcher.background_location=Background Location
+launcher.common_location=Common Location
 launcher.exit_failed=Failed to shutdown.
 launcher.versions_json_not_matched=The version %s is malformed! There are a json:%s in this version. Do you want to fix this problem?
 launcher.versions_json_not_matched_cannot_auto_completion=The version %s lost version information file, delete it?
 launcher.versions_json_not_formatted=The version information of %s is malformed! Redownload it?
 launcher.choose_bgpath=Choose background path.
+launcher.choose_commonpath=Choose common path.
+launcher.commpath_tooltip=<html><body>This app will save all game libraries and assets here unless there are existant files in game folder.</body></html>
 launcher.background_tooltip=<html><body>The laucher uses a default background.<br/>If you use custom background.png, link it and it will be used.<br />If there is "bg" subdirectory, this app will chooses one picture in "bgskin" randomly.<br />If you set the background setting, this app will use it.</body></html>
 launcher.update_launcher=Check for update
 launcher.enable_shadow=Enable Window Shadow

HMCUtils/src/main/resources/org/jackhuang/hellominecraft/lang/I18N_vi.lang

@@ -306,11 +306,14 @@ mainwindow.no_version=Không có phiên bản minecraft nào được tìm thấ
 launcher.about=<html>Về tác giả<br/>Minecraft Forum ID: klkl6523<br/>Copyright (c) 2013 huangyuhui<br/>http://github.com/huanghongxun/HMCL/<br/>Phần mềm này dùng project Gson, cảm ơn người đóng góp.</html>
 launcher.download_source=Download Source
 launcher.background_location=Background Location
+launcher.common_location=Common Location
 launcher.exit_failed=Tắt launcher thất bại.
 launcher.versions_json_not_matched=The version %s is malformed! There are a json:%s in this version. Do you want to fix this problem?
 launcher.versions_json_not_matched_cannot_auto_completion=The version %s lost version information file, delete it?
 launcher.versions_json_not_formatted=The version information of %s is malformed! Redownload it?
 launcher.choose_bgpath=Choose background path.
+launcher.choose_commonpath=Choose common path.
+launcher.commpath_tooltip=<html><body>This app will save all game libraries and assets here unless there are existant files in game folder.</body></html>
 launcher.background_tooltip=<html><body>This app uses the default background at first.<br />If there is background.png in the directory, it will be used.<br />If there is "bg" subdirectory, this app will chooses one picture in "bgskin" randomly.<br />If you set the background setting, this app will use it.</body></html>
 launcher.update_launcher=Check for update
 launcher.enable_shadow=Enable Window Shadow

HMCUtils/src/main/resources/org/jackhuang/hellominecraft/lang/I18N_vi.properties

@@ -306,11 +306,14 @@ mainwindow.no_version=Kh\u00f4ng c\u00f3 phi\u00ean b\u1ea3n minecraft n\u00e0o
 launcher.about=<html>V\u1ec1 t\u00e1c gi\u1ea3<br/>Minecraft Forum ID: klkl6523<br/>Copyright (c) 2013 huangyuhui<br/>http://github.com/huanghongxun/HMCL/<br/>Ph\u1ea7n m\u1ec1m n\u00e0y d\u00f9ng project Gson, c\u1ea3m \u01a1n ng\u01b0\u1eddi \u0111\u00f3ng g\u00f3p.</html>
 launcher.download_source=Download Source
 launcher.background_location=Background Location
+launcher.common_location=Common Location
 launcher.exit_failed=T\u1eaft launcher th\u1ea5t b\u1ea1i.
 launcher.versions_json_not_matched=The version %s is malformed! There are a json:%s in this version. Do you want to fix this problem?
 launcher.versions_json_not_matched_cannot_auto_completion=The version %s lost version information file, delete it?
 launcher.versions_json_not_formatted=The version information of %s is malformed! Redownload it?
 launcher.choose_bgpath=Choose background path.
+launcher.choose_commonpath=Choose common path.
+launcher.commpath_tooltip=<html><body>This app will save all game libraries and assets here unless there are existant files in game folder.</body></html>
 launcher.background_tooltip=<html><body>This app uses the default background at first.<br />If there is background.png in the directory, it will be used.<br />If there is "bg" subdirectory, this app will chooses one picture in "bgskin" randomly.<br />If you set the background setting, this app will use it.</body></html>
 launcher.update_launcher=Check for update
 launcher.enable_shadow=Enable Window Shadow

HMCUtils/src/main/resources/org/jackhuang/hellominecraft/lang/I18N_zh_CN.lang

@@ -308,11 +308,14 @@ mainwindow.no_version=未找到任何版本，是否进入游戏下载？
 launcher.about=<html>默认背景图感谢gamerteam提供。<br/>关于作者：<br/>百度ID：huanghongxun20<br/>mcbbs：huanghongxun<br/>Minecraft Forum ID: klkl6523<br/>欢迎提交Bug哦<br/>Copyright (c) 2013-2017 huangyuhui.<br/>免责声明：Minecraft软件版权归Mojang AB所有，使用本软件产生的版权问题本软件制作方概不负责。<br/>本启动器在GPLv3协议下开源:https://github.com/huanghongxun/HMCL/ ,感谢issues和pull requests贡献者<br/>本软件使用了基于Apache License 2.0的Gson项目，感谢贡献者。</html>
 launcher.download_source=下载源
 launcher.background_location=背景地址
+launcher.common_location=公共文件夹
 launcher.exit_failed=强制退出失败，可能是Forge 1.7.10及更高版本导致的，无法解决。
 launcher.versions_json_not_matched=版本%s格式不规范！该版本文件夹下有json:%s，是否更名这个文件来规范格式？
 launcher.versions_json_not_matched_cannot_auto_completion=版本%s缺失必要的版本信息文件，是否删除该版本？
 launcher.versions_json_not_formatted=版本%s信息文件格式错误，是否重新下载？
 launcher.choose_bgpath=选择背景路径
+launcher.choose_commonpath=选择公共路径
+launcher.commpath_tooltip=<html><body>启动器将所有游戏资源及依赖库文件放于此集中管理，如果游戏文件夹内有现成的将不会使用公共库文件</body></html>
 launcher.background_tooltip=<html><body>启动器默认使用自带的背景<br />如果当前目录有background.png，则会使用该文件作为背景<br />如果当前目录有bg子目录，则会随机使用里面的一张图作为背景<br />如果该背景地址被修改，则会使用背景地址里的一张图作为背景<br />背景地址允许有多个地址，使用半角分号";"(不包含双引号)分隔</body></html>
 launcher.update_launcher=检查更新
 launcher.enable_shadow=启用窗口阴影

HMCUtils/src/main/resources/org/jackhuang/hellominecraft/lang/I18N_zh_CN.properties

@@ -308,11 +308,14 @@ mainwindow.no_version=\u672a\u627e\u5230\u4efb\u4f55\u7248\u672c\uff0c\u662f\u54
 launcher.about=<html>\u9ed8\u8ba4\u80cc\u666f\u56fe\u611f\u8c22gamerteam\u63d0\u4f9b\u3002<br/>\u5173\u4e8e\u4f5c\u8005\uff1a<br/>\u767e\u5ea6ID\uff1ahuanghongxun20<br/>mcbbs\uff1ahuanghongxun<br/>Minecraft Forum ID: klkl6523<br/>\u6b22\u8fce\u63d0\u4ea4Bug\u54e6<br/>Copyright (c) 2013-2017 huangyuhui.<br/>\u514d\u8d23\u58f0\u660e\uff1aMinecraft\u8f6f\u4ef6\u7248\u6743\u5f52Mojang AB\u6240\u6709\uff0c\u4f7f\u7528\u672c\u8f6f\u4ef6\u4ea7\u751f\u7684\u7248\u6743\u95ee\u9898\u672c\u8f6f\u4ef6\u5236\u4f5c\u65b9\u6982\u4e0d\u8d1f\u8d23\u3002<br/>\u672c\u542f\u52a8\u5668\u5728GPLv3\u534f\u8bae\u4e0b\u5f00\u6e90:https://github.com/huanghongxun/HMCL/ ,\u611f\u8c22issues\u548cpull requests\u8d21\u732e\u8005<br/>\u672c\u8f6f\u4ef6\u4f7f\u7528\u4e86\u57fa\u4e8eApache License 2.0\u7684Gson\u9879\u76ee\uff0c\u611f\u8c22\u8d21\u732e\u8005\u3002</html>
 launcher.download_source=\u4e0b\u8f7d\u6e90
 launcher.background_location=\u80cc\u666f\u5730\u5740
+launcher.common_location=\u516c\u5171\u6587\u4ef6\u5939
 launcher.exit_failed=\u5f3a\u5236\u9000\u51fa\u5931\u8d25\uff0c\u53ef\u80fd\u662fForge 1.7.10\u53ca\u66f4\u9ad8\u7248\u672c\u5bfc\u81f4\u7684\uff0c\u65e0\u6cd5\u89e3\u51b3\u3002
 launcher.versions_json_not_matched=\u7248\u672c%s\u683c\u5f0f\u4e0d\u89c4\u8303\uff01\u8be5\u7248\u672c\u6587\u4ef6\u5939\u4e0b\u6709json:%s\uff0c\u662f\u5426\u66f4\u540d\u8fd9\u4e2a\u6587\u4ef6\u6765\u89c4\u8303\u683c\u5f0f\uff1f
 launcher.versions_json_not_matched_cannot_auto_completion=\u7248\u672c%s\u7f3a\u5931\u5fc5\u8981\u7684\u7248\u672c\u4fe1\u606f\u6587\u4ef6\uff0c\u662f\u5426\u5220\u9664\u8be5\u7248\u672c\uff1f
 launcher.versions_json_not_formatted=\u7248\u672c%s\u4fe1\u606f\u6587\u4ef6\u683c\u5f0f\u9519\u8bef\uff0c\u662f\u5426\u91cd\u65b0\u4e0b\u8f7d\uff1f
 launcher.choose_bgpath=\u9009\u62e9\u80cc\u666f\u8def\u5f84
+launcher.choose_commonpath=\u9009\u62e9\u516c\u5171\u8def\u5f84
+launcher.commpath_tooltip=<html><body>\u542f\u52a8\u5668\u5c06\u6240\u6709\u6e38\u620f\u8d44\u6e90\u53ca\u4f9d\u8d56\u5e93\u6587\u4ef6\u653e\u4e8e\u6b64\u96c6\u4e2d\u7ba1\u7406\uff0c\u5982\u679c\u6e38\u620f\u6587\u4ef6\u5939\u5185\u6709\u73b0\u6210\u7684\u5c06\u4e0d\u4f1a\u4f7f\u7528\u516c\u5171\u5e93\u6587\u4ef6</body></html>
 launcher.background_tooltip=<html><body>\u542f\u52a8\u5668\u9ed8\u8ba4\u4f7f\u7528\u81ea\u5e26\u7684\u80cc\u666f<br />\u5982\u679c\u5f53\u524d\u76ee\u5f55\u6709background.png\uff0c\u5219\u4f1a\u4f7f\u7528\u8be5\u6587\u4ef6\u4f5c\u4e3a\u80cc\u666f<br />\u5982\u679c\u5f53\u524d\u76ee\u5f55\u6709bg\u5b50\u76ee\u5f55\uff0c\u5219\u4f1a\u968f\u673a\u4f7f\u7528\u91cc\u9762\u7684\u4e00\u5f20\u56fe\u4f5c\u4e3a\u80cc\u666f<br />\u5982\u679c\u8be5\u80cc\u666f\u5730\u5740\u88ab\u4fee\u6539\uff0c\u5219\u4f1a\u4f7f\u7528\u80cc\u666f\u5730\u5740\u91cc\u7684\u4e00\u5f20\u56fe\u4f5c\u4e3a\u80cc\u666f<br />\u80cc\u666f\u5730\u5740\u5141\u8bb8\u6709\u591a\u4e2a\u5730\u5740\uff0c\u4f7f\u7528\u534a\u89d2\u5206\u53f7";"(\u4e0d\u5305\u542b\u53cc\u5f15\u53f7)\u5206\u9694</body></html>
 launcher.update_launcher=\u68c0\u67e5\u66f4\u65b0
 launcher.enable_shadow=\u542f\u7528\u7a97\u53e3\u9634\u5f71