Added "Launching From" info

core/src/mindustry/game/SectorInfo.java

@@ -43,6 +43,8 @@ public class SectorInfo{
     public boolean waves = true;
     /** Whether attack mode is enabled here. */
     public boolean attack = false;
+    /** Whether this sector has any enemy spawns. */
+    public boolean hasSpawns = true;
     /** Wave # from state */
     public int wave = 1, winWave = -1;
     /** Waves this sector can survive if under attack. Based on wave in info. <0 means uncalculated. */
@@ -168,6 +170,7 @@ public class SectorInfo{
         secondsPassed = 0;
         wavesPassed = 0;
         damage = 0;
+        hasSpawns = spawner.countSpawns() > 0;
 
         if(state.rules.sector != null){
             state.rules.sector.saveInfo();