Difficulty settings for sector presets

core/src/mindustry/content/SectorPresets.java

@@ -18,47 +18,54 @@ public class SectorPresets implements ContentList{
         groundZero = new SectorPreset("groundZero", serpulo, 15){{
             alwaysUnlocked = true;
             captureWave = 10;
+            difficulty = 0;
         }};
 
         saltFlats = new SectorPreset("saltFlats", serpulo, 101){{
-
+            difficulty = 5;
         }};
 
         frozenForest = new SectorPreset("frozenForest", serpulo, 86){{
             captureWave = 40;
+            difficulty = 1;
         }};
 
         craters = new SectorPreset("craters", serpulo, 18){{
             captureWave = 40;
+            difficulty = 2;
         }};
 
         ruinousShores = new SectorPreset("ruinousShores", serpulo, 19){{
             captureWave = 40;
+            difficulty = 3;
         }};
 
         stainedMountains = new SectorPreset("stainedMountains", serpulo, 20){{
             captureWave = 30;
+            difficulty = 2;
         }};
 
         fungalPass = new SectorPreset("fungalPass", serpulo, 21){{
-
+            difficulty = 4;
         }};
 
         overgrowth = new SectorPreset("overgrowth", serpulo, 22){{
-
+            difficulty = 5;
         }};
 
         tarFields = new SectorPreset("tarFields", serpulo, 23){{
             captureWave = 40;
+            difficulty = 5;
         }};
 
         desolateRift = new SectorPreset("desolateRift", serpulo, 123){{
             captureWave = 40;
+            difficulty = 8;
         }};
 
-
         nuclearComplex = new SectorPreset("nuclearComplex", serpulo, 130){{
             captureWave = 60;
+            difficulty = 7;
         }};
     }
 }