Fixed: missing spawns / incorrect ranks / jittery movement / tests

core/src/io/anuke/mindustry/game/DefaultWaves.java

@@ -10,7 +10,7 @@ public class DefaultWaves{
     private static Array<SpawnGroup> spawns;
 
     public static Array<SpawnGroup> getDefaultSpawns(){
-        if(spawns == null){
+        if(spawns == null && UnitTypes.dagger != null){
             spawns = Array.with(
             new SpawnGroup(UnitTypes.dagger){{
                 end = 8;
@@ -164,6 +164,6 @@ public class DefaultWaves{
             }}
             );
         }
-        return spawns;
+        return spawns == null ? new Array<>() : spawns;
     }
 }

core/src/io/anuke/mindustry/game/Rules.java

@@ -28,5 +28,5 @@ public class Rules{
     /**Zone ID, -1 for invalid zone.*/
     public byte zone = -1;
     /**Spawn layout. Since only zones modify this, it should be assigned on save load.*/
-    public transient Array<SpawnGroup> spawns = new Array<>();
+    public transient Array<SpawnGroup> spawns = DefaultWaves.getDefaultSpawns();
 }

core/src/io/anuke/mindustry/game/Stats.java

@@ -30,7 +30,7 @@ public class Stats{
 
         //each new launch period adds onto the rank 1.5 'points'
         if(wavesLasted >= zone.conditionWave){
-           score += (float)((zone.conditionWave - wavesLasted) / zone.launchPeriod + 1) * 1.5f;
+           score += (float)((wavesLasted - zone.conditionWave) / zone.launchPeriod + 1) * 1.5f;
         }
 
         int capacity = zone.generator.coreBlock.itemCapacity;