refactor(api): make register return boolean value

Author: ROMVoid95

src/main/java/micdoodle8/mods/galacticraft/api/galaxies/GalaxyRegistry.java

@@ -192,15 +192,15 @@ public static CelestialBody getCelestialBodyFromUnlocalizedName(String unlocaliz
         return getPlanetOrMoonFromTranslationkey(unlocalizedName);
     }
 
-    public static <T> void register(T object)
+    public static <T> boolean register(T object)
     {
         if (object instanceof SolarSystem)
         {
             SolarSystem solarSystem = (SolarSystem) object;
             RegisterEvent registerEvent = new RegisterEvent(solarSystem, Loader.instance().activeModContainer());
             solarSystems.add(solarSystem);
             objects.add(solarSystem);
-            MinecraftForge.EVENT_BUS.post(registerEvent);
+            return MinecraftForge.EVENT_BUS.post(registerEvent);
         }
 
         if (object instanceof Planet)
@@ -209,7 +209,7 @@ public static <T> void register(T object)
             RegisterEvent registerEvent = new RegisterEvent(planet, Loader.instance().activeModContainer());
             planets.add(planet);
             objects.add(planet);
-            MinecraftForge.EVENT_BUS.post(registerEvent);
+            return MinecraftForge.EVENT_BUS.post(registerEvent);
         }
 
         if (object instanceof Moon)
@@ -218,7 +218,7 @@ public static <T> void register(T object)
             RegisterEvent registerEvent = new RegisterEvent(moon, Loader.instance().activeModContainer());
             moons.add(moon);
             objects.add(moon);
-            MinecraftForge.EVENT_BUS.post(registerEvent);
+            return MinecraftForge.EVENT_BUS.post(registerEvent);
         }
 
         if (object instanceof Satellite)
@@ -227,7 +227,7 @@ public static <T> void register(T object)
             RegisterEvent registerEvent = new RegisterEvent(satellite, Loader.instance().activeModContainer());
             satellites.add(satellite);
             objects.add(satellite);
-            MinecraftForge.EVENT_BUS.post(registerEvent);
+            return MinecraftForge.EVENT_BUS.post(registerEvent);
         }
 
         if (object instanceof CelestialBody)
@@ -242,7 +242,20 @@ public static <T> void register(T object)
 
             RegisterEvent registerEvent = new RegisterEvent(celestialType, Loader.instance().activeModContainer());
             objects.add(celestialType);
-            MinecraftForge.EVENT_BUS.post(registerEvent);
+            return MinecraftForge.EVENT_BUS.post(registerEvent);
+        }
+
+        throw new GalacticraftRegistryException("Unable to register " + object);
+    }
+
+    public static class GalacticraftRegistryException extends RuntimeException
+    {
+
+        private static final long serialVersionUID = -6874512550357215087L;
+
+        public GalacticraftRegistryException(String message)
+        {
+            super(message);
         }
     }