Sector abandon button

core/src/mindustry/ui/dialogs/PlanetDialog.java

@@ -890,6 +890,32 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
         });
 
         dialog.addCloseButton();
+
+        if(sector.hasBase()){
+            dialog.buttons.button("@sector.abandon", Icon.cancel, () -> {
+                ui.showConfirm("@sector.abandon.confirm", () -> {
+                    dialog.hide();
+
+                    if(sector.isBeingPlayed()){
+                        hide();
+                        //after dialog is hidden
+                        Time.runTask(7f, () -> {
+                            //force game over in a more dramatic fashion
+                            for(var core : player.team().cores().copy()){
+                                core.kill();
+                            }
+                        });
+                    }else{
+                        if(sector.save != null){
+                            sector.save.delete();
+                        }
+                        sector.save = null;
+                    }
+                    updateSelected();
+                });
+            });
+        }
+
         dialog.show();
     }
 
@@ -1080,7 +1106,6 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
         }
 
         //make sure there are no under-attack sectors (other than this one)
-        //TODO abandon button?
         for(Planet planet : content.planets()){
             if(!planet.allowWaveSimulation && !debugSelect){
                 int attackedCount = planet.sectors.count(s -> s.isAttacked() && s != sector);