Sector bugfixes / More sector info

core/src/mindustry/game/SectorInfo.java

@@ -1,5 +1,6 @@
 package mindustry.game;
 
+import arc.func.*;
 import arc.math.*;
 import arc.struct.*;
 import arc.util.*;
@@ -21,6 +22,7 @@ public class SectorInfo{
     private static final int valueWindow = 60;
     /** refresh period of export in ticks */
     private static final float refreshPeriod = 60;
+    private static float returnf;
 
     /** Core input statistics. */
     public ObjectMap<Item, ExportStat> production = new ObjectMap<>();
@@ -265,23 +267,29 @@ public class SectorInfo{
         return map;
     }
 
+    public boolean anyExports(){
+        if(export.size == 0) return false;
+        returnf = 0f;
+        export.each((i, e) -> returnf += e.mean);
+        return returnf >= 0.01f;
+    }
+
     /** @return a newly allocated map with import statistics. Use sparingly. */
     //TODO this can be a float map
-    public ObjectMap<Item, ExportStat> importStats(){
+    public ObjectMap<Item, ExportStat> importStats(Planet planet){
         ObjectMap<Item, ExportStat> imports = new ObjectMap<>();
-        //for all sectors on all planets that have bases and export to this sector
-        for(Planet planet : content.planets()){
-            for(Sector sector : planet.sectors){
-                Sector dest = sector.info.getRealDestination();
-                if(sector.hasBase() && sector.info != this && dest != null && dest.info == this){
-                    //add their exports to our imports
-                    sector.info.export.each((item, stat) -> {
-                        imports.get(item, ExportStat::new).mean += stat.mean;
-                    });
-                }
+        eachImport(planet, sector -> sector.info.export.each((item, stat) -> imports.get(item, ExportStat::new).mean += stat.mean));
+        return imports;
+    }
+
+    /** Iterates through every sector this one imports from. */
+    public void eachImport(Planet planet, Cons<Sector> cons){
+        for(Sector sector : planet.sectors){
+            Sector dest = sector.info.getRealDestination();
+            if(sector.hasBase() && sector.info != this && dest != null && dest.info == this){
+                cons.get(sector);
             }
         }
-        return imports;
     }
 
     public static class ExportStat{