Save file drop support for desktop

core/src/mindustry/ClientLauncher.java

@@ -9,19 +9,25 @@ import arc.graphics.*;
 import arc.graphics.g2d.*;
 import arc.math.*;
 import arc.util.*;
+import arc.util.io.*;
 import mindustry.ai.*;
 import mindustry.audio.*;
 import mindustry.core.*;
 import mindustry.ctype.*;
 import mindustry.game.EventType.*;
 import mindustry.game.*;
+import mindustry.game.Saves.*;
 import mindustry.gen.*;
 import mindustry.graphics.*;
+import mindustry.io.*;
 import mindustry.maps.*;
 import mindustry.mod.*;
 import mindustry.net.*;
 import mindustry.ui.*;
 
+import java.io.*;
+import java.util.zip.*;
+
 import static arc.Core.*;
 import static mindustry.Vars.*;
 
@@ -303,4 +309,34 @@ public abstract class ClientLauncher extends ApplicationCore implements Platform
             super.pause();
         }
     }
+
+    @Override
+    public void fileDropped(Fi file){
+        if(!OS.isIos){
+            if(file.extension().equalsIgnoreCase(saveExtension)){ //open save
+                try{
+                    if(SaveIO.isSaveValid(file)){
+                        SaveMeta meta = SaveIO.getMeta(new DataInputStream(new InflaterInputStream(file.read(Streams.defaultBufferSize))));
+                        if(meta.tags.containsKey("name")){
+                            //is map
+                            if(!ui.editor.isShown()){
+                                ui.editor.show();
+                            }
+
+                            ui.editor.beginEditMap(file);
+                        }else if(meta.rules.sector == null){ //don't allow importing campaign saves, they are broken
+                            SaveSlot slot = control.saves.importSave(file);
+                            ui.load.runLoadSave(slot);
+                        }else{
+                            ui.showErrorMessage("@save.nocampaign");
+                        }
+                    }else{
+                        ui.showErrorMessage("@save.import.invalid");
+                    }
+                }catch(Throwable e){
+                    ui.showException("@save.import.fail", e);
+                }
+            }
+        }
+    }
 }