Fixed crash due to naming conflict

src/main/java/com/minelittlepony/unicopia/WeaklyOwned.java

@@ -34,14 +34,14 @@ public interface WeaklyOwned<E extends Entity> extends Owned<E> {
         }
     }
 
-    default World getWorld() {
+    default World getReferenceWorld() {
-        return ((Entity)this).world;
+        return ((Entity)this).getEntityWorld();
     }
 
     @Nullable
     @Override
     default E getMaster() {
-        return getMasterReference().get(getWorld());
+        return getMasterReference().get(getReferenceWorld());
     }
 
     @Override

src/main/java/com/minelittlepony/unicopia/ability/AbilityDispatcher.java

@@ -201,7 +201,7 @@ public class AbilityDispatcher implements Tickable, NbtSerialisable {
                 return;
             }
 
-            if (ability.canActivate(player.getWorld(), player)) {
+            if (ability.canActivate(player.getReferenceWorld(), player)) {
                 triggered = true;
                 setCooldown(ability.getCooldownTime(player));
 

src/main/java/com/minelittlepony/unicopia/ability/BatEeeeAbility.java

@@ -54,18 +54,18 @@ public class BatEeeeAbility implements Ability<Hit> {
 
     @Override
     public void apply(Pony player, Hit data) {
-        Random rng = player.getWorld().random;
+        Random rng = player.getReferenceWorld().random;
         int count = 1 + rng.nextInt(10);
 
         for (int i = 0; i < count; i++) {
-            player.getWorld().playSound(null, player.getOrigin(), USounds.ENTITY_PLAYER_BATPONY_SCREECH, SoundCategory.PLAYERS,
+            player.getReferenceWorld().playSound(null, player.getOrigin(), USounds.ENTITY_PLAYER_BATPONY_SCREECH, SoundCategory.PLAYERS,
                     0.9F + (rng.nextFloat() - 0.5F) / 2F,
                     1.6F + (rng.nextFloat() - 0.5F)
             );
         }
-        AwaitTickQueue.scheduleTask(player.getWorld(), w -> {
+        AwaitTickQueue.scheduleTask(player.getReferenceWorld(), w -> {
             for (int i = 0; i < count; i++) {
-                player.getWorld().playSound(null, player.getOrigin(), USounds.ENTITY_PLAYER_BATPONY_SCREECH, SoundCategory.PLAYERS,
+                player.getReferenceWorld().playSound(null, player.getOrigin(), USounds.ENTITY_PLAYER_BATPONY_SCREECH, SoundCategory.PLAYERS,
                         0.9F + (rng.nextFloat() - 0.5F) / 2F,
                         1.6F + (rng.nextFloat() - 0.5F)
                 );

src/main/java/com/minelittlepony/unicopia/ability/BatPonyHangAbility.java

@@ -46,7 +46,7 @@ public class BatPonyHangAbility implements Ability<Multi> {
 
         BlockPos poss = RayTraceHelper.doTrace(player.getMaster(), 3, 1, EntityPredicates.CAN_COLLIDE).getBlockPos().orElse(null);
         if (poss != null) {
-            boolean air = player.getWorld().isAir(poss.down()) && player.getWorld().isAir(poss.down(2));
+            boolean air = player.getReferenceWorld().isAir(poss.down()) && player.getReferenceWorld().isAir(poss.down(2));
 
             if (air && player.canHangAt(poss)) {
                 return new Multi(poss, 1);
@@ -55,7 +55,7 @@ public class BatPonyHangAbility implements Ability<Multi> {
 
         return RayTraceHelper.doTrace(player.getMaster(), 5, 1, EntityPredicates.EXCEPT_SPECTATOR).getBlockPos()
                 .map(BlockPos::down)
-                .filter(pos -> player.getWorld().isAir(pos) && player.getWorld().isAir(pos.down()) && player.canHangAt(pos))
+                .filter(pos -> player.getReferenceWorld().isAir(pos) && player.getReferenceWorld().isAir(pos.down()) && player.canHangAt(pos))
                 .map(pos -> new Multi(pos, 1))
                 .orElse(null);
     }

src/main/java/com/minelittlepony/unicopia/ability/CarryAbility.java

@@ -55,7 +55,7 @@ public class CarryAbility implements Ability<Hit> {
     @Override
     public void apply(Pony iplayer, Hit data) {
         PlayerEntity player = iplayer.getMaster();
-        LivingEntity rider = findRider(player, iplayer.getWorld());
+        LivingEntity rider = findRider(player, iplayer.getReferenceWorld());
 
         if (player.hasPassengers()) {
             player.removeAllPassengers();

src/main/java/com/minelittlepony/unicopia/ability/ChangelingDisguiseAbility.java

@@ -52,8 +52,8 @@ public class ChangelingDisguiseAbility extends ChangelingFeedAbility {
                     .map(EntityAppearance::getAppearance)
                     .orElse(e) : e;
         }).orElseGet(() -> trace.getBlockPos().map(pos -> {
-            if (!iplayer.getWorld().isAir(pos)) {
+            if (!iplayer.getReferenceWorld().isAir(pos)) {
-                return MixinFallingBlockEntity.createInstance(player.getEntityWorld(), 0, 0, 0, iplayer.getWorld().getBlockState(pos));
+                return MixinFallingBlockEntity.createInstance(player.getEntityWorld(), 0, 0, 0, iplayer.getReferenceWorld().getBlockState(pos));
             }
             return null;
         }).orElse(null));

src/main/java/com/minelittlepony/unicopia/ability/ChangelingFeedAbility.java

@@ -80,7 +80,7 @@ public class ChangelingFeedAbility implements Ability<Hit> {
     }
 
     protected List<LivingEntity> getTargets(Pony player) {
-        List<Entity> list = VecHelper.findInRange(player.getMaster(), player.getWorld(), player.getOriginVector(), 3, this::canDrain);
+        List<Entity> list = VecHelper.findInRange(player.getMaster(), player.getReferenceWorld(), player.getOriginVector(), 3, this::canDrain);
 
         RayTraceHelper.<LivingEntity>findEntity(player.getMaster(), 17, 1,
                 looked -> looked instanceof LivingEntity && !list.contains(looked) && canDrain(looked))
@@ -162,7 +162,7 @@ public class ChangelingFeedAbility implements Ability<Hit> {
 
     @Override
     public void postApply(Pony player, AbilitySlot slot) {
-        if (player.getWorld().random.nextInt(10) == 0) {
+        if (player.getReferenceWorld().random.nextInt(10) == 0) {
             player.spawnParticles(ParticleTypes.HEART, 1);
         }
     }

src/main/java/com/minelittlepony/unicopia/ability/EarthPonyGrowAbility.java

@@ -56,7 +56,7 @@ public class EarthPonyGrowAbility implements Ability<Pos> {
         for (BlockPos pos : BlockPos.iterate(
                 data.pos().add(-2, -2, -2),
                 data.pos().add( 2,  2,  2))) {
-            count += applySingle(player.getWorld(), player.getWorld().getBlockState(pos), pos);
+            count += applySingle(player.getReferenceWorld(), player.getReferenceWorld().getBlockState(pos), pos);
         }
 
         if (count > 0) {
@@ -80,7 +80,7 @@ public class EarthPonyGrowAbility implements Ability<Pos> {
     public void preApply(Pony player, AbilitySlot slot) {
         player.getMagicalReserves().getExertion().add(30);
 
-        if (player.getWorld().isClient()) {
+        if (player.getReferenceWorld().isClient()) {
             player.spawnParticles(MagicParticleEffect.UNICORN, 1);
         }
     }

src/main/java/com/minelittlepony/unicopia/ability/EarthPonyKickAbility.java

@@ -58,7 +58,7 @@ public class EarthPonyKickAbility implements Ability<Pos> {
 
         return RayTraceHelper.doTrace(player.getMaster(), distance, 1)
                 .getBlockPos()
-                .filter(pos -> TreeType.at(pos, player.getWorld()) != TreeType.NONE)
+                .filter(pos -> TreeType.at(pos, player.getReferenceWorld()) != TreeType.NONE)
                 .isPresent() ? 3 : 1;
     }
 
@@ -69,7 +69,7 @@ public class EarthPonyKickAbility implements Ability<Pos> {
 
         return RayTraceHelper.doTrace(player.getMaster(), distance, 1)
                 .getBlockPos()
-                .filter(pos -> TreeType.at(pos, player.getWorld()) != TreeType.NONE)
+                .filter(pos -> TreeType.at(pos, player.getReferenceWorld()) != TreeType.NONE)
                 .map(Pos::new)
                 .orElseGet(() -> getDefaultKickLocation(player));
     }
@@ -85,10 +85,10 @@ public class EarthPonyKickAbility implements Ability<Pos> {
     @Override
     public boolean canApply(Pony player, Pos data) {
         BlockPos pos = data.pos();
-        TreeType tree = TreeType.at(pos, player.getWorld());
+        TreeType tree = TreeType.at(pos, player.getReferenceWorld());
 
-        return tree == TreeType.NONE || tree.findBase(player.getWorld(), pos)
+        return tree == TreeType.NONE || tree.findBase(player.getReferenceWorld(), pos)
-                .map(base -> tree.countBlocks(player.getWorld(), pos) > 0)
+                .map(base -> tree.countBlocks(player.getReferenceWorld(), pos) > 0)
                 .orElse(false);
     }
 
@@ -100,7 +100,7 @@ public class EarthPonyKickAbility implements Ability<Pos> {
     @Override
     public void apply(Pony iplayer, Pos data) {
         BlockPos pos = data.pos();
-        TreeType tree = TreeType.at(pos, iplayer.getWorld());
+        TreeType tree = TreeType.at(pos, iplayer.getReferenceWorld());
 
         iplayer.setAnimation(Animation.KICK);
         iplayer.subtractEnergyCost(tree == TreeType.NONE ? 1 : 3);
@@ -108,7 +108,7 @@ public class EarthPonyKickAbility implements Ability<Pos> {
         if (tree == TreeType.NONE) {
             return;
         } else {
-            ParticleUtils.spawnParticle(iplayer.getWorld(), UParticles.GROUND_POUND, data.vec(), Vec3d.ZERO);
+            ParticleUtils.spawnParticle(iplayer.getReferenceWorld(), UParticles.GROUND_POUND, data.vec(), Vec3d.ZERO);
         }
 
         PlayerEntity player = iplayer.getMaster();

src/main/java/com/minelittlepony/unicopia/ability/EarthPonyStompAbility.java

@@ -81,7 +81,7 @@ public class EarthPonyStompAbility implements Ability<Hit> {
 
     private void thrustDownwards(Pony player) {
         BlockPos ppos = player.getOrigin();
-        BlockPos pos = PosHelper.findSolidGroundAt(player.getWorld(), ppos, player.getPhysics().getGravitySignum());
+        BlockPos pos = PosHelper.findSolidGroundAt(player.getReferenceWorld(), ppos, player.getPhysics().getGravitySignum());
 
         double downV = Math.sqrt(ppos.getSquaredDistance(pos)) * player.getPhysics().getGravitySignum();
         player.getMaster().addVelocity(0, -downV, 0);
@@ -100,7 +100,7 @@ public class EarthPonyStompAbility implements Ability<Hit> {
 
             float heavyness = 1 + EnchantmentHelper.getEquipmentLevel(UEnchantments.HEAVY, player);
 
-            iplayer.getWorld().getOtherEntities(player, areaOfEffect.offset(iplayer.getOriginVector())).forEach(i -> {
+            iplayer.getReferenceWorld().getOtherEntities(player, areaOfEffect.offset(iplayer.getOriginVector())).forEach(i -> {
                 double dist = Math.sqrt(center.getSquaredDistance(i.getBlockPos()));
 
                 if (dist <= rad + 3) {

src/main/java/com/minelittlepony/unicopia/ability/PegasusCaptureStormAbility.java

@@ -60,7 +60,7 @@ public class PegasusCaptureStormAbility implements Ability<Hit> {
     @Override
     public void apply(Pony player, Hit data) {
 
-        World w = player.getWorld();
+        World w = player.getReferenceWorld();
         ItemStack stack = player.getMaster().getStackInHand(Hand.MAIN_HAND);
         boolean thundering = w.isThundering();
 

src/main/java/com/minelittlepony/unicopia/ability/UnicornCastingAbility.java

@@ -90,7 +90,7 @@ public class UnicornCastingAbility implements Ability<Hit> {
                 if (amount < 0) {
                     AmuletItem.consumeEnergy(stack, amount);
                     player.getMagicalReserves().getMana().add(amount * player.getMagicalReserves().getMana().getMax());
-                    player.getWorld().playSoundFromEntity(null, player.getMaster(), USounds.ITEM_AMULET_RECHARGE, SoundCategory.PLAYERS, 1, 1);
+                    player.getReferenceWorld().playSoundFromEntity(null, player.getMaster(), USounds.ITEM_AMULET_RECHARGE, SoundCategory.PLAYERS, 1, 1);
                 }
             }
         } else {
@@ -144,7 +144,7 @@ public class UnicornCastingAbility implements Ability<Hit> {
 
             float i = player.getAbilities().getStat(slot).getFillProgress();
 
-            Random rng = player.getWorld().random;
+            Random rng = player.getReferenceWorld().random;
             player.addParticle(i > 0.5F ? ParticleTypes.LARGE_SMOKE : ParticleTypes.CLOUD, eyes, VecHelper.supply(() -> (rng.nextGaussian() - 0.5) / 10));
             player.playSound(USounds.ITEM_AMULET_CHARGING, 1, i / 20);
         } else {

src/main/java/com/minelittlepony/unicopia/ability/UnicornDispellAbility.java

@@ -76,7 +76,7 @@ public class UnicornDispellAbility implements Ability<Pos> {
     @Override
     public void apply(Pony player, Pos data) {
         player.setAnimation(Animation.WOLOLO);
-        Caster.stream(VecHelper.findInRange(player.getEntity(), player.getWorld(), data.vec(), 2, EquinePredicates.IS_PLACED_SPELL).stream()).forEach(target -> {
+        Caster.stream(VecHelper.findInRange(player.getEntity(), player.getReferenceWorld(), data.vec(), 2, EquinePredicates.IS_PLACED_SPELL).stream()).forEach(target -> {
             target.getSpellSlot().clear();
         });
     }

src/main/java/com/minelittlepony/unicopia/ability/UnicornTeleportAbility.java

@@ -69,7 +69,7 @@ public class UnicornTeleportAbility implements Ability<Pos> {
         int maxDistance = player.getMaster().isCreative() ? 1000 : 100;
         HitResult ray = RayTraceHelper.doTrace(player.getMaster(), maxDistance, 1, EntityPredicates.CAN_COLLIDE).getResult();
 
-        World w = player.getWorld();
+        World w = player.getReferenceWorld();
 
         if (ray.getType() == HitResult.Type.MISS) {
             return null;
@@ -136,7 +136,7 @@ public class UnicornTeleportAbility implements Ability<Pos> {
             return;
         }
 
-        teleportee.getWorld().playSound(null, teleportee.getOrigin(), USounds.ENTITY_PLAYER_UNICORN_TELEPORT, SoundCategory.PLAYERS, 1, 1);
+        teleportee.getReferenceWorld().playSound(null, teleportee.getOrigin(), USounds.ENTITY_PLAYER_UNICORN_TELEPORT, SoundCategory.PLAYERS, 1, 1);
 
         double distance = destination.distanceTo(teleportee) / 10;
 

src/main/java/com/minelittlepony/unicopia/ability/magic/Caster.java

@@ -42,7 +42,7 @@ public interface Caster<E extends LivingEntity> extends Owned<E>, Levelled, Affi
      * Gets the minecraft world
      */
     @Override
-    default World getWorld() {
+    default World getReferenceWorld() {
         return getEntity().getEntityWorld();
     }
 
@@ -50,7 +50,7 @@ public interface Caster<E extends LivingEntity> extends Owned<E>, Levelled, Affi
      * Returns true if we're executing on the client.
      */
     default boolean isClient() {
-        return getWorld().isClient();
+        return getReferenceWorld().isClient();
     }
 
     /**
@@ -62,13 +62,13 @@ public interface Caster<E extends LivingEntity> extends Owned<E>, Levelled, Affi
 
     default boolean canModifyAt(BlockPos pos) {
         if (getMaster() instanceof PlayerEntity) {
-            return getWorld().canPlayerModifyAt((PlayerEntity)getMaster(), pos);
+            return getReferenceWorld().canPlayerModifyAt((PlayerEntity)getMaster(), pos);
         }
-        return getWorld().getGameRules().getBoolean(GameRules.DO_MOB_GRIEFING);
+        return getReferenceWorld().getGameRules().getBoolean(GameRules.DO_MOB_GRIEFING);
     }
 
     default void playSound(SoundEvent sound, float volume, float pitch) {
-        getWorld().playSound(null, getEntity().getX(), getEntity().getY(), getEntity().getZ(), sound, getEntity().getSoundCategory(), volume, pitch);
+        getReferenceWorld().playSound(null, getEntity().getX(), getEntity().getY(), getEntity().getZ(), sound, getEntity().getSoundCategory(), volume, pitch);
     }
 
     /**
@@ -87,7 +87,7 @@ public interface Caster<E extends LivingEntity> extends Owned<E>, Levelled, Affi
     }
 
     default Stream<Entity> findAllEntitiesInRange(double radius, @Nullable Predicate<Entity> test) {
-        return VecHelper.findInRange(getEntity(), getWorld(), getOriginVector(), radius, test).stream();
+        return VecHelper.findInRange(getEntity(), getReferenceWorld(), getOriginVector(), radius, test).stream();
     }
 
     default Stream<Entity> findAllEntitiesInRange(double radius) {

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/DispersableDisguiseSpell.java

@@ -51,7 +51,7 @@ public class DispersableDisguiseSpell extends AbstractDisguiseSpell implements I
             if (isSuppressed()) {
                 source.spawnParticles(MagicParticleEffect.UNICORN, 5);
                 source.spawnParticles(UParticles.CHANGELING_MAGIC, 5);
-            } else if (source.getWorld().random.nextInt(30) == 0) {
+            } else if (source.getReferenceWorld().random.nextInt(30) == 0) {
                 source.spawnParticles(UParticles.CHANGELING_MAGIC, 2);
             }
         }

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/PlaceableSpell.java

@@ -77,12 +77,12 @@ public class PlaceableSpell extends AbstractDelegatingSpell {
             if (!source.isClient()) {
 
                 if (dimension == null) {
-                    dimension = source.getWorld().getRegistryKey();
+                    dimension = source.getReferenceWorld().getRegistryKey();
                     setDirty();
                 }
 
                 if (getSpellEntity(source).isEmpty()) {
-                    CastSpellEntity entity = UEntities.CAST_SPELL.create(source.getWorld());
+                    CastSpellEntity entity = UEntities.CAST_SPELL.create(source.getReferenceWorld());
                     Vec3d pos = castEntity.getPosition().orElse(source.getOriginVector());
                     entity.updatePositionAndAngles(pos.x, pos.y, pos.z, 0, 0);
                     entity.getSpellSlot().put(spell.toPlaceable());
@@ -123,7 +123,7 @@ public class PlaceableSpell extends AbstractDelegatingSpell {
 
     protected Optional<CastSpellEntity> getSpellEntity(Caster<?> source) {
         return Optional.ofNullable(dimension)
-                .map(dim -> source.getWorld().getServer().getWorld(dimension))
+                .map(dim -> source.getReferenceWorld().getServer().getWorld(dimension))
                 .map(castEntity::get);
     }
 

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/RainboomAbilitySpell.java

@@ -70,7 +70,7 @@ public class RainboomAbilitySpell extends AbstractSpell {
             e.damage(MagicalDamageSource.create("rainboom", source), 6);
         });
         PosHelper.getAllInRegionMutable(source.getOrigin(), effect_range).forEach(pos -> {
-            BlockState state = source.getWorld().getBlockState(pos);
+            BlockState state = source.getReferenceWorld().getBlockState(pos);
             if (state.isIn(UTags.FRAGILE) && canBreak(pos, owner)) {
                 owner.world.breakBlock(pos, true);
             }

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/ThrowableSpell.java

@@ -50,7 +50,7 @@ public final class ThrowableSpell extends AbstractDelegatingSpell {
      * Returns the resulting projectile entity for customization (or null if on the client).
      */
     public Optional<MagicProjectileEntity> throwProjectile(Caster<?> caster, float divergance) {
-        World world = caster.getWorld();
+        World world = caster.getReferenceWorld();
 
         LivingEntity entity = caster.getMaster();
 

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/effect/AttractiveSpell.java

@@ -55,7 +55,7 @@ public class AttractiveSpell extends ShieldSpell implements ProjectileSpell {
             force *= AttractionUtils.getForceAdjustment(target);
         }
 
-        if (!isGood && source.getWorld().random.nextInt(4500) == 0) {
+        if (!isGood && source.getReferenceWorld().random.nextInt(4500) == 0) {
             source.getEntity().damage(MagicalDamageSource.create("vortex"), 4);
         }
 

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/effect/AwkwardSpell.java

@@ -29,7 +29,7 @@ public class AwkwardSpell extends AbstractSpell {
 
                 List<Identifier> names = new ArrayList<>(Registry.PARTICLE_TYPE.getIds());
 
-                int index = (int)MathHelper.nextDouble(source.getWorld().random, 0, names.size());
+                int index = (int)MathHelper.nextDouble(source.getReferenceWorld().random, 0, names.size());
 
                 Identifier id = names.get(index);
                 ParticleType<?> type = Registry.PARTICLE_TYPE.get(id);

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/effect/CatapultSpell.java

@@ -73,9 +73,9 @@ public class CatapultSpell extends AbstractSpell implements ProjectileSpell {
             e.setVelocity(caster.getEntity().getVelocity());
         } else {
             e.addVelocity(
-                ((caster.getWorld().random.nextFloat() * HORIZONTAL_VARIANCE) - HORIZONTAL_VARIANCE + vel.x * 0.8F) * 0.1F,
+                ((caster.getReferenceWorld().random.nextFloat() * HORIZONTAL_VARIANCE) - HORIZONTAL_VARIANCE + vel.x * 0.8F) * 0.1F,
                 0.1F + (getTraits().get(Trait.STRENGTH, -MAX_STRENGTH, MAX_STRENGTH) - 40) / 16D,
-                ((caster.getWorld().random.nextFloat() * HORIZONTAL_VARIANCE) - HORIZONTAL_VARIANCE + vel.z * 0.8F) * 0.1F
+                ((caster.getReferenceWorld().random.nextFloat() * HORIZONTAL_VARIANCE) - HORIZONTAL_VARIANCE + vel.z * 0.8F) * 0.1F
             );
         }
     }
@@ -94,7 +94,7 @@ public class CatapultSpell extends AbstractSpell implements ProjectileSpell {
             Optional.ofNullable(result.getEntity()).ifPresent(apply);
         } else if (ray.getType() == HitResult.Type.BLOCK) {
             if (caster.canModifyAt(((BlockHitResult)ray).getBlockPos())) {
-                createBlockEntity(caster.getWorld(), ((BlockHitResult)ray).getBlockPos(), apply);
+                createBlockEntity(caster.getReferenceWorld(), ((BlockHitResult)ray).getBlockPos(), apply);
             }
         }
     }

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/effect/DarkVortexSpell.java

@@ -86,13 +86,13 @@ public class DarkVortexSpell extends AttractiveSpell implements ProjectileSpell
         setDirty();
 
         if (age % 20 == 0) {
-            source.getWorld().playSound(null, source.getOrigin(), USounds.AMBIENT_DARK_VORTEX_ADDITIONS, SoundCategory.AMBIENT, 1, 1);
+            source.getReferenceWorld().playSound(null, source.getOrigin(), USounds.AMBIENT_DARK_VORTEX_ADDITIONS, SoundCategory.AMBIENT, 1, 1);
         }
 
         source.subtractEnergyCost(-accumulatedMass);
 
-        if (!source.isClient() && source.getWorld().random.nextInt(300) == 0) {
+        if (!source.isClient() && source.getReferenceWorld().random.nextInt(300) == 0) {
-            ParticleUtils.spawnParticle(source.getWorld(), UParticles.LIGHTNING_BOLT, getOrigin(source), Vec3d.ZERO);
+            ParticleUtils.spawnParticle(source.getReferenceWorld(), UParticles.LIGHTNING_BOLT, getOrigin(source), Vec3d.ZERO);
         }
 
         return super.tick(source, situation);
@@ -161,9 +161,9 @@ public class DarkVortexSpell extends AttractiveSpell implements ProjectileSpell
                         return;
                     }
                     if (source.getOrigin().isWithinDistance(i, getEventHorizonRadius() / 2)) {
-                        source.getWorld().breakBlock(i, false);
+                        source.getReferenceWorld().breakBlock(i, false);
                     } else {
-                        CatapultSpell.createBlockEntity(source.getWorld(), i, e -> {
+                        CatapultSpell.createBlockEntity(source.getReferenceWorld(), i, e -> {
                             applyRadialEffect(source, e, e.getPos().distanceTo(origin), radius);
                         });
                     }
@@ -177,8 +177,8 @@ public class DarkVortexSpell extends AttractiveSpell implements ProjectileSpell
 
     protected boolean canAffect(Caster<?> source, BlockPos pos) {
         return source.canModifyAt(pos)
-            && source.getWorld().getFluidState(pos).isEmpty()
+            && source.getReferenceWorld().getFluidState(pos).isEmpty()
-            && source.getWorld().getBlockState(pos).getHardness(source.getWorld(), pos) >= 0;
+            && source.getReferenceWorld().getBlockState(pos).getHardness(source.getReferenceWorld(), pos) >= 0;
     }
 
     // 1. force decreases with distance: distance scale 1 -> 0
@@ -235,7 +235,7 @@ public class DarkVortexSpell extends AttractiveSpell implements ProjectileSpell
             }
 
             source.subtractEnergyCost(-massOfTarget * 10);
-            source.getWorld().playSound(null, source.getOrigin(), USounds.AMBIENT_DARK_VORTEX_MOOD, SoundCategory.AMBIENT, 2, 0.02F);
+            source.getReferenceWorld().playSound(null, source.getOrigin(), USounds.AMBIENT_DARK_VORTEX_MOOD, SoundCategory.AMBIENT, 2, 0.02F);
         } else {
             double force = getAttractiveForce(source, target);
 

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/effect/FireBoltSpell.java

@@ -67,7 +67,7 @@ public class FireBoltSpell extends AbstractSpell implements ProjectileSpell, Hom
                 c.setHomingTarget(target);
             });
 
-            caster.playSound(USounds.SPELL_FIRE_BOLT_SHOOT, 0.7F, 0.4F / (caster.getWorld().random.nextFloat() * 0.4F + 0.8F));
+            caster.playSound(USounds.SPELL_FIRE_BOLT_SHOOT, 0.7F, 0.4F / (caster.getReferenceWorld().random.nextFloat() * 0.4F + 0.8F));
         }
         return false;
     }
@@ -81,7 +81,7 @@ public class FireBoltSpell extends AbstractSpell implements ProjectileSpell, Hom
     }
 
     protected int getNumberOfBalls(Caster<?> caster) {
-        return 1 + caster.getWorld().random.nextInt(3) + (int)getTraits().get(Trait.EARTH) * 3;
+        return 1 + caster.getReferenceWorld().random.nextInt(3) + (int)getTraits().get(Trait.EARTH) * 3;
     }
 
     @Override

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/effect/FireSpell.java

@@ -50,7 +50,7 @@ public class FireSpell extends AbstractAreaEffectSpell implements ProjectileSpel
     @Override
     public void onImpact(MagicProjectileEntity projectile, BlockPos pos, BlockState state) {
         if (!projectile.isClient()) {
-            projectile.getWorld().createExplosion(projectile.getEntity(), pos.getX(), pos.getY(), pos.getZ(), 2, DestructionType.DESTROY);
+            projectile.getReferenceWorld().createExplosion(projectile.getEntity(), pos.getX(), pos.getY(), pos.getZ(), 2, DestructionType.DESTROY);
         }
     }
 
@@ -61,9 +61,9 @@ public class FireSpell extends AbstractAreaEffectSpell implements ProjectileSpel
         }
 
         return PosHelper.getAllInRegionMutable(source.getOrigin(), new Sphere(false, Math.max(0, 4 + getTraits().get(Trait.POWER)))).reduce(false,
-                (r, i) -> source.canModifyAt(i) && applyBlocks(source.getWorld(), i),
+                (r, i) -> source.canModifyAt(i) && applyBlocks(source.getReferenceWorld(), i),
                 (a, b) -> a || b)
-                || applyEntities(null, source.getWorld(), source.getOriginVector());
+                || applyEntities(null, source.getReferenceWorld(), source.getOriginVector());
     }
 
     protected void generateParticles(Caster<?> source) {

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/effect/IceSpell.java

@@ -46,21 +46,21 @@ public class IceSpell extends AbstractSpell {
         boolean submerged = source.getEntity().isSubmergedInWater() || source.getEntity().isSubmergedIn(FluidTags.LAVA);
 
         long blocksAffected = PosHelper.getAllInRegionMutable(source.getOrigin(), outerRange).filter(i -> {
-            if (source.canModifyAt(i) && applyBlockSingle(source.getEntity(), source.getWorld(), i, situation)) {
+            if (source.canModifyAt(i) && applyBlockSingle(source.getEntity(), source.getReferenceWorld(), i, situation)) {
 
                 if (submerged & source.getOrigin().isWithinDistance(i, rad - 1)) {
-                    BlockState state = source.getWorld().getBlockState(i);
+                    BlockState state = source.getReferenceWorld().getBlockState(i);
                     if (state.isIn(BlockTags.ICE) || state.isOf(Blocks.OBSIDIAN)) {
-                        source.getWorld().setBlockState(i, Blocks.AIR.getDefaultState(), Block.NOTIFY_NEIGHBORS);
+                        source.getReferenceWorld().setBlockState(i, Blocks.AIR.getDefaultState(), Block.NOTIFY_NEIGHBORS);
                     } else if (!state.getFluidState().isEmpty()) {
-                        source.getWorld().setBlockState(i, state.with(Properties.WATERLOGGED, false), Block.NOTIFY_NEIGHBORS);
+                        source.getReferenceWorld().setBlockState(i, state.with(Properties.WATERLOGGED, false), Block.NOTIFY_NEIGHBORS);
                     }
                 }
 
-                ParticleUtils.spawnParticle(source.getWorld(), ParticleTypes.SPLASH, new Vec3d(
+                ParticleUtils.spawnParticle(source.getReferenceWorld(), ParticleTypes.SPLASH, new Vec3d(
-                        i.getX() + source.getWorld().random.nextFloat(),
+                        i.getX() + source.getReferenceWorld().random.nextFloat(),
                         i.getY() + 1,
-                        i.getZ() + source.getWorld().random.nextFloat()), Vec3d.ZERO);
+                        i.getZ() + source.getReferenceWorld().random.nextFloat()), Vec3d.ZERO);
 
                 return true;
             }
@@ -70,7 +70,7 @@ public class IceSpell extends AbstractSpell {
 
         source.subtractEnergyCost(Math.min(10, blocksAffected));
 
-        return applyEntities(source.getMaster(), source.getWorld(), source.getOriginVector()) && situation == Situation.PROJECTILE;
+        return applyEntities(source.getMaster(), source.getReferenceWorld(), source.getOriginVector()) && situation == Situation.PROJECTILE;
     }
 
     protected boolean applyEntities(LivingEntity owner, World world, Vec3d pos) {

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/effect/InfernoSpell.java

@@ -31,7 +31,7 @@ public class InfernoSpell extends FireSpell {
             generateParticles(source);
         }
 
-        World w = source.getWorld();
+        World w = source.getReferenceWorld();
 
         if (!w.isClient) {
             int radius = 4 + (source.getLevel().get() * 4);

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/effect/LightSpell.java

@@ -53,17 +53,17 @@ public class LightSpell extends AbstractSpell {
 
         if (!caster.isClient()) {
             if (lights.isEmpty()) {
-                int size = 2 + caster.getWorld().random.nextInt(2) + (int)(getTraits().get(Trait.LIFE, 10, 20) - 10)/10;
+                int size = 2 + caster.getReferenceWorld().random.nextInt(2) + (int)(getTraits().get(Trait.LIFE, 10, 20) - 10)/10;
                 while (lights.size() < size) {
                     lights.add(new EntityReference<FairyEntity>());
                 }
             }
 
             lights.forEach(ref -> {
-                if (!ref.isPresent(caster.getWorld())) {
+                if (!ref.isPresent(caster.getReferenceWorld())) {
-                    FairyEntity entity = UEntities.TWITTERMITE.create(caster.getWorld());
+                    FairyEntity entity = UEntities.TWITTERMITE.create(caster.getReferenceWorld());
                     entity.setPosition(ref.getPosition().orElseGet(() -> {
-                        return caster.getOriginVector().add(VecHelper.supply(() -> caster.getWorld().random.nextInt(3) - 1));
+                        return caster.getOriginVector().add(VecHelper.supply(() -> caster.getReferenceWorld().random.nextInt(3) - 1));
                     }));
                     entity.setMaster(caster);
                     entity.world.spawnEntity(entity);
@@ -83,7 +83,7 @@ public class LightSpell extends AbstractSpell {
             return;
         }
         lights.forEach(ref -> {
-            ref.ifPresent(caster.getWorld(), e -> {
+            ref.ifPresent(caster.getReferenceWorld(), e -> {
                 e.world.sendEntityStatus(e, (byte)60);
                 e.discard();
             });

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/effect/NecromancySpell.java

@@ -56,24 +56,24 @@ public class NecromancySpell extends AbstractAreaEffectSpell {
             return false;
         }
 
-        boolean rainy = source.getWorld().hasRain(source.getOrigin());
+        boolean rainy = source.getReferenceWorld().hasRain(source.getOrigin());
 
         if (source.isClient()) {
             source.spawnParticles(new Sphere(true, radius * 2), rainy ? 98 : 125, pos -> {
                 BlockPos bpos = new BlockPos(pos);
 
-                if (!source.getWorld().isAir(bpos.down())) {
+                if (!source.getReferenceWorld().isAir(bpos.down())) {
-                    source.addParticle(source.getWorld().hasRain(bpos) ? ParticleTypes.SMOKE : ParticleTypes.FLAME, pos, Vec3d.ZERO);
+                    source.addParticle(source.getReferenceWorld().hasRain(bpos) ? ParticleTypes.SMOKE : ParticleTypes.FLAME, pos, Vec3d.ZERO);
                 }
             });
             return true;
         }
 
-        if (source.getWorld().getDifficulty() == Difficulty.PEACEFUL) {
+        if (source.getReferenceWorld().getDifficulty() == Difficulty.PEACEFUL) {
             return true;
         }
 
-        summonedEntities.removeIf(ref -> ref.getOrEmpty(source.getWorld()).filter(e -> {
+        summonedEntities.removeIf(ref -> ref.getOrEmpty(source.getReferenceWorld()).filter(e -> {
             if (e.getPos().distanceTo(source.getOriginVector()) > radius * 2) {
                 e.world.sendEntityStatus(e, (byte)60);
                 e.discard();
@@ -82,13 +82,13 @@ public class NecromancySpell extends AbstractAreaEffectSpell {
             return true;
         }).isEmpty());
 
-        float additional = source.getWorld().getLocalDifficulty(source.getOrigin()).getLocalDifficulty() + getTraits().get(Trait.CHAOS, 0, 10);
+        float additional = source.getReferenceWorld().getLocalDifficulty(source.getOrigin()).getLocalDifficulty() + getTraits().get(Trait.CHAOS, 0, 10);
 
         setDirty();
         if (--spawnCountdown > 0 && !summonedEntities.isEmpty()) {
             return true;
         }
-        spawnCountdown = 1200 + source.getWorld().random.nextInt(rainy ? 2000 : 1000);
+        spawnCountdown = 1200 + source.getReferenceWorld().random.nextInt(rainy ? 2000 : 1000);
 
         if (summonedEntities.size() > 10 + additional) {
             return true;
@@ -97,11 +97,11 @@ public class NecromancySpell extends AbstractAreaEffectSpell {
         Shape affectRegion = new Sphere(false, radius);
 
         for (int i = 0; i < 10; i++) {
-            Vec3d pos = affectRegion.computePoint(source.getWorld().random).add(source.getOriginVector());
+            Vec3d pos = affectRegion.computePoint(source.getReferenceWorld().random).add(source.getOriginVector());
 
             BlockPos loc = new BlockPos(pos);
 
-            if (source.getWorld().isAir(loc.up()) && !source.getWorld().isAir(loc)) {
+            if (source.getReferenceWorld().isAir(loc.up()) && !source.getReferenceWorld().isAir(loc)) {
                 spawnPool.get().ifPresent(type -> {
                     spawnMonster(source, pos, type);
                 });
@@ -118,7 +118,7 @@ public class NecromancySpell extends AbstractAreaEffectSpell {
         }
         LivingEntity master = caster.getMaster();
         summonedEntities.forEach(ref -> {
-            ref.ifPresent(caster.getWorld(), e -> {
+            ref.ifPresent(caster.getReferenceWorld(), e -> {
                 if (master != null) {
                     master.applyDamageEffects(master, e);
                 }
@@ -129,14 +129,14 @@ public class NecromancySpell extends AbstractAreaEffectSpell {
     }
 
     protected void spawnMonster(Caster<?> source, Vec3d pos, EntityType<? extends LivingEntity> type) {
-        LivingEntity minion = type.create(source.getWorld());
+        LivingEntity minion = type.create(source.getReferenceWorld());
 
         source.subtractEnergyCost(3);
 
         minion.updatePositionAndAngles(pos.x, pos.y, pos.z, 0, 0);
         minion.setVelocity(0, 0.3, 0);
 
-        source.getWorld().syncWorldEvent(WorldEvents.DRAGON_BREATH_CLOUD_SPAWNS, minion.getBlockPos(), 0);
+        source.getReferenceWorld().syncWorldEvent(WorldEvents.DRAGON_BREATH_CLOUD_SPAWNS, minion.getBlockPos(), 0);
         source.playSound(SoundEvents.BLOCK_BELL_USE, 1, 0.3F);
         source.spawnParticles(ParticleTypes.LARGE_SMOKE, 10);
         minion.equipStack(EquipmentSlot.HEAD, Items.IRON_HELMET.getDefaultStack());
@@ -145,7 +145,7 @@ public class NecromancySpell extends AbstractAreaEffectSpell {
             ((Creature)eq).setMaster(source);
         });
 
-        source.getWorld().spawnEntity(minion);
+        source.getReferenceWorld().spawnEntity(minion);
         summonedEntities.add(new EntityReference<>(minion));
         setDirty();
     }

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/effect/ScorchSpell.java

@@ -27,9 +27,9 @@ public class ScorchSpell extends FireSpell {
 
     @Override
     public boolean tick(Caster<?> source, Situation situation) {
-        BlockPos pos = PosHelper.findSolidGroundAt(source.getWorld(), source.getOrigin(), source.getPhysics().getGravitySignum());
+        BlockPos pos = PosHelper.findSolidGroundAt(source.getReferenceWorld(), source.getOrigin(), source.getPhysics().getGravitySignum());
 
-        if (source.canModifyAt(pos) && StateMaps.FIRE_AFFECTED.convert(source.getWorld(), pos)) {
+        if (source.canModifyAt(pos) && StateMaps.FIRE_AFFECTED.convert(source.getReferenceWorld(), pos)) {
             source.spawnParticles(new Sphere(false, Math.max(1, getTraits().get(Trait.POWER))), 5, p -> {
                 source.addParticle(ParticleTypes.SMOKE, PosHelper.offset(p, pos), Vec3d.ZERO);
             });

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/effect/SiphoningSpell.java

@@ -56,7 +56,7 @@ public class SiphoningSpell extends AbstractAreaEffectSpell {
             int direction = isFriendlyTogether(source) ? 1 : -1;
 
             source.spawnParticles(new Sphere(true, radius, 1, 0, 1), 1, pos -> {
-                if (!source.getWorld().isAir(new BlockPos(pos).down())) {
+                if (!source.getReferenceWorld().isAir(new BlockPos(pos).down())) {
 
                     double dist = pos.distanceTo(source.getOriginVector());
                     Vec3d velocity = pos.subtract(source.getOriginVector()).normalize().multiply(direction * dist);
@@ -65,7 +65,7 @@ public class SiphoningSpell extends AbstractAreaEffectSpell {
                 }
             });
         } else {
-            if (source.getWorld().getTime() % 10 != 0) {
+            if (source.getReferenceWorld().getTime() % 10 != 0) {
                 return true;
             }
 
@@ -79,7 +79,7 @@ public class SiphoningSpell extends AbstractAreaEffectSpell {
     }
 
     private Stream<LivingEntity> getTargets(Caster<?> source) {
-        return VecHelper.findInRange(null, source.getWorld(), source.getOriginVector(), 4 + source.getLevel().get(), EntityPredicates.EXCEPT_CREATIVE_OR_SPECTATOR.and(e -> e instanceof LivingEntity))
+        return VecHelper.findInRange(null, source.getReferenceWorld(), source.getOriginVector(), 4 + source.getLevel().get(), EntityPredicates.EXCEPT_CREATIVE_OR_SPECTATOR.and(e -> e instanceof LivingEntity))
                 .stream()
                 .map(e -> (LivingEntity)e);
     }
@@ -93,7 +93,7 @@ public class SiphoningSpell extends AbstractAreaEffectSpell {
             source.subtractEnergyCost(0.2F);
 
             if (ticksUpset > 0 || maxHealthGain <= 0) {
-                if (source.getWorld().random.nextInt(3000) == 0) {
+                if (source.getReferenceWorld().random.nextInt(3000) == 0) {
                     setDead();
                 } else {
                     e.damage(damage, e.getHealth() / 4);

src/main/java/com/minelittlepony/unicopia/ability/magic/spell/trait/TraitDiscovery.java

@@ -74,7 +74,7 @@ public class TraitDiscovery implements NbtSerialisable {
         });
         unreadTraits.addAll(newTraits);
         pony.setDirty();
-        if (!newTraits.isEmpty() && !pony.getWorld().isClient) {
+        if (!newTraits.isEmpty() && !pony.getReferenceWorld().isClient) {
             Channel.UNLOCK_TRAITS.send((ServerPlayerEntity)pony.getMaster(), new MsgUnlockTraits(newTraits));
         }
     }

src/main/java/com/minelittlepony/unicopia/entity/CastSpellEntity.java

@@ -135,4 +135,9 @@ public class CastSpellEntity extends LightEmittingEntity implements Caster<Livin
     public Packet<?> createSpawnPacket() {
         return Channel.SERVER_SPAWN_PROJECTILE.toPacket(new MsgSpawnProjectile(this));
     }
+
+    @Override
+    public World getReferenceWorld() {
+        return WeaklyOwned.super.getReferenceWorld();
+    }
 }

src/main/java/com/minelittlepony/unicopia/entity/Creature.java

@@ -84,8 +84,8 @@ public class Creature extends Living<LivingEntity> implements WeaklyOwned<Living
     }
 
     @Override
-    public World getWorld() {
+    public World getReferenceWorld() {
-        return super.getWorld();
+        return super.getReferenceWorld();
     }
 
     @Override
@@ -93,7 +93,7 @@ public class Creature extends Living<LivingEntity> implements WeaklyOwned<Living
     public LivingEntity getMaster() {
         NbtCompound data = entity.getDataTracker().get(MASTER);
         master.fromNBT(data);
-        return master.getOrEmpty(getWorld()).orElse(entity);
+        return master.getOrEmpty(getReferenceWorld()).orElse(entity);
     }
 
     @Override
@@ -129,7 +129,7 @@ public class Creature extends Living<LivingEntity> implements WeaklyOwned<Living
             goals.add(3, eatMuffinGoal);
         }
 
-        if (master.isPresent(getWorld())) {
+        if (master.isPresent(getReferenceWorld())) {
             initMinionAi();
         }
     }
@@ -242,7 +242,7 @@ public class Creature extends Living<LivingEntity> implements WeaklyOwned<Living
         }
         if (compound.contains("master", NbtElement.COMPOUND_TYPE)) {
             master.fromNBT(compound.getCompound("master"));
-            if (master.isPresent(getWorld()) && targets != null) {
+            if (master.isPresent(getReferenceWorld()) && targets != null) {
                 initMinionAi();
             }
         }

src/main/java/com/minelittlepony/unicopia/entity/behaviour/EntityAppearance.java

@@ -162,7 +162,7 @@ public class EntityAppearance implements NbtSerialisable, PlayerDimensions.Provi
                             ), p -> createPlayer(nbt, p, source));
             } else {
                 if (source.isClient()) {
-                    entity = EntityType.fromNbt(nbt).map(type -> type.create(source.getWorld())).orElse(null);
+                    entity = EntityType.fromNbt(nbt).map(type -> type.create(source.getReferenceWorld())).orElse(null);
                     if (entity != null) {
                         try {
                             entity.readNbt(nbt);
@@ -172,7 +172,7 @@ public class EntityAppearance implements NbtSerialisable, PlayerDimensions.Provi
                         entity = EntityBehaviour.forEntity(entity).onCreate(entity, this, true);
                     }
                 } else {
-                    entity = EntityType.loadEntityWithPassengers(nbt, source.getWorld(), e -> {
+                    entity = EntityType.loadEntityWithPassengers(nbt, source.getReferenceWorld(), e -> {
                         return EntityBehaviour.forEntity(e).onCreate(e, this, true);
                     });
                 }
@@ -202,7 +202,7 @@ public class EntityAppearance implements NbtSerialisable, PlayerDimensions.Provi
         }
 
         if (source.isClient()) {
-            source.getWorld().spawnEntity(entity);
+            source.getReferenceWorld().spawnEntity(entity);
         }
     }
 

src/main/java/com/minelittlepony/unicopia/entity/player/PlayerCamera.java

@@ -68,7 +68,7 @@ public class PlayerCamera extends MotionCompositor {
             return 0;
         }
 
-        float energyAddition = (player.getWorld().random.nextInt(maxE) - maxE/2) / 100F;
+        float energyAddition = (player.getReferenceWorld().random.nextInt(maxE) - maxE/2) / 100F;
 
         if (Math.abs(energyAddition) <= 0.001) {
             return 0;

src/main/java/com/minelittlepony/unicopia/entity/player/PlayerLevelStore.java

@@ -25,7 +25,7 @@ class PlayerLevelStore implements Levelled.LevelStore {
     public void add(int levels) {
         if (levels > 0) {
             pony.getMagicalReserves().getMana().add(pony.getMagicalReserves().getMana().getMax() / 2);
-            pony.getWorld().playSound(null, pony.getOrigin(), SoundEvents.ENTITY_PLAYER_LEVELUP, SoundCategory.PLAYERS, 1, 2);
+            pony.getReferenceWorld().playSound(null, pony.getOrigin(), SoundEvents.ENTITY_PLAYER_LEVELUP, SoundCategory.PLAYERS, 1, 2);
         }
         Levelled.LevelStore.super.add(levels);
     }

src/main/java/com/minelittlepony/unicopia/entity/player/Pony.java

@@ -142,7 +142,7 @@ public class Pony extends Living<PlayerEntity> implements Transmittable, Copieab
             this.animationMaxDuration = animationDuration;
 
             if (!isClient()) {
-                Channel.SERVER_PLAYER_ANIMATION_CHANGE.send(getWorld(), new MsgPlayerAnimationChange(this, animation, animationDuration));
+                Channel.SERVER_PLAYER_ANIMATION_CHANGE.send(getReferenceWorld(), new MsgPlayerAnimationChange(this, animation, animationDuration));
             }
 
             animation.getSound().ifPresent(sound -> {
@@ -271,8 +271,8 @@ public class Pony extends Living<PlayerEntity> implements Transmittable, Copieab
     @Override
     public boolean beforeUpdate() {
 
-        if (!speciesSet && getWorld() instanceof ServerWorld) {
+        if (!speciesSet && getReferenceWorld() instanceof ServerWorld) {
-            setSpecies(WorldTribeManager.forWorld((ServerWorld)getWorld()).getDefaultRace());
+            setSpecies(WorldTribeManager.forWorld((ServerWorld)getReferenceWorld()).getDefaultRace());
             setDirty();
         }
 
@@ -321,9 +321,9 @@ public class Pony extends Living<PlayerEntity> implements Transmittable, Copieab
     }
 
     public boolean canHangAt(BlockPos pos) {
-        BlockState state = getWorld().getBlockState(pos);
+        BlockState state = getReferenceWorld().getBlockState(pos);
 
-        return state.isSolidSurface(getWorld(), pos, getEntity(), Direction.DOWN);
+        return state.isSolidSurface(getReferenceWorld(), pos, getEntity(), Direction.DOWN);
     }
 
     private BlockPos getHangingPos() {

src/main/java/com/minelittlepony/unicopia/item/AlicornAmuletItem.java

@@ -123,7 +123,7 @@ public class AlicornAmuletItem extends AmuletItem implements PlayerCharmTracker.
     public void onRemoved(Pony pony, int timeWorn) {
         float attachedTime = timeWorn / 100F;
 
-        LocalDifficulty difficulty = pony.getWorld().getLocalDifficulty(pony.getOrigin());
+        LocalDifficulty difficulty = pony.getReferenceWorld().getLocalDifficulty(pony.getOrigin());
         float amount = attachedTime * (1 + difficulty.getClampedLocalDifficulty());
 
         amount = Math.min(amount, pony.getMaster().getMaxHealth());

src/main/java/com/minelittlepony/unicopia/item/ZapAppleItem.java

@@ -119,7 +119,7 @@ public class ZapAppleItem extends Item implements ChameleonItem, ToxicHolder {
     public void appendStacks(ItemGroup tab, DefaultedList<ItemStack> items) {
         super.appendStacks(tab, items);
         if (isIn(tab)) {
-            Unicopia.SIDE.getPony().map(Pony::getWorld)
+            Unicopia.SIDE.getPony().map(Pony::getReferenceWorld)
                     .stream()
                     .flatMap(world -> Registries.valuesForTag(world, UTags.APPLES))
                     .filter(a -> a != this).forEach(item -> {

src/main/java/com/minelittlepony/unicopia/item/enchantment/GemFindingEnchantment.java

@@ -23,7 +23,7 @@ public class GemFindingEnchantment extends SimpleEnchantment {
 
         BlockPos origin = user.getOrigin();
 
-        double volume = BlockPos.findClosest(origin, radius, radius, pos -> user.getWorld().getBlockState(pos).isIn(UTags.INTERESTING))
+        double volume = BlockPos.findClosest(origin, radius, radius, pos -> user.getReferenceWorld().getBlockState(pos).isIn(UTags.INTERESTING))
             .map(p -> user.getOriginVector().squaredDistanceTo(p.getX(), p.getY(), p.getZ()))
             .map(find -> (1 - (Math.sqrt(find) / radius)))
             .orElse(-1D);

src/main/java/com/minelittlepony/unicopia/item/enchantment/PoisonedJokeEnchantment.java

@@ -36,19 +36,19 @@ public class PoisonedJokeEnchantment extends SimpleEnchantment implements Identi
 
     @Override
     public void onUserTick(Living<?> user, int level) {
-        if (sounds.isEmpty() || user.getWorld().isClient) {
+        if (sounds.isEmpty() || user.getReferenceWorld().isClient) {
             return;
         }
 
-        int light = user.getWorld().getLightLevel(user.getEntity().getRootVehicle().getBlockPos());
+        int light = user.getReferenceWorld().getLightLevel(user.getEntity().getRootVehicle().getBlockPos());
-        Random rng = user.getWorld().random;
+        Random rng = user.getReferenceWorld().random;
         Data data = user.getEnchants().computeIfAbsent(this, Data::new);
 
         data.level -= rng.nextFloat() * 0.8F;
         if (rng.nextInt(Math.max(1, (light * 9) + (int)data.level)) == 0) {
             data.level = rng.nextInt(5000);
 
-            user.getWorld().playSoundFromEntity(
+            user.getReferenceWorld().playSoundFromEntity(
                     null,
                     user.getEntity(),
                     sounds.get(rng.nextInt(sounds.size())), SoundCategory.HOSTILE,

src/main/java/com/minelittlepony/unicopia/item/enchantment/WantItNeedItEnchantment.java

@@ -16,7 +16,7 @@ public class WantItNeedItEnchantment extends SimpleEnchantment {
 
     @Override
     public void onUserTick(Living<?> user, int level) {
-        if (user instanceof Creature && user.getWorld().random.nextInt(10) == 0) {
+        if (user instanceof Creature && user.getReferenceWorld().random.nextInt(10) == 0) {
             ParticleUtils.spawnParticles(new FollowingParticleEffect(UParticles.HEALTH_DRAIN, user.getEntity(), 0.2F), user.getEntity(), 1);
         }
     }

src/main/java/com/minelittlepony/unicopia/network/MsgRequestSpeciesChange.java

@@ -43,7 +43,7 @@ public class MsgRequestSpeciesChange implements Packet<ServerPlayerEntity> {
     public void handle(ServerPlayerEntity sender) {
         Pony player = Pony.of(sender);
 
-        Race worldDefaultRace = WorldTribeManager.forWorld((ServerWorld)player.getWorld()).getDefaultRace();
+        Race worldDefaultRace = WorldTribeManager.forWorld((ServerWorld)player.getReferenceWorld()).getDefaultRace();
 
         if (force || player.getSpecies().isDefault() || (player.getSpecies() == worldDefaultRace && !player.isSpeciesPersisted())) {
             player.setSpecies(newRace.isPermitted(sender) ? newRace : worldDefaultRace);

src/main/java/com/minelittlepony/unicopia/particle/ParticleHandle.java

@@ -28,7 +28,7 @@ public class ParticleHandle {
 
     public Optional<Attachment> update(UUID id, String partName, ParticleSource source, Consumer<ParticleSpawner> constructor) {
         return get(partName).or(() -> {
-            if (source.getWorld().isClient) {
+            if (source.getReferenceWorld().isClient) {
                 new ClientHandle().addParticle(id, partName, source, constructor);
             }
             return get(partName);

src/main/java/com/minelittlepony/unicopia/particle/ParticleSource.java

@@ -14,7 +14,7 @@ public interface ParticleSource extends ParticleSpawner {
     /**
      * gets the minecraft world
      */
-    World getWorld();
+    World getReferenceWorld();
 
     Entity getEntity();
 
@@ -34,13 +34,13 @@ public interface ParticleSource extends ParticleSpawner {
     }
 
     default void spawnParticles(Vec3d pos, Shape area, int count, Consumer<Vec3d> particleSpawner) {
-        area.randomPoints(count, getWorld().random)
+        area.randomPoints(count, getReferenceWorld().random)
             .map(point -> point.add(pos))
             .forEach(particleSpawner);
     }
 
     @Override
     default void addParticle(ParticleEffect effect, Vec3d position, Vec3d velocity) {
-        getWorld().addParticle(effect, position.x, position.y, position.z, velocity.x, velocity.y, velocity.z);
+        getReferenceWorld().addParticle(effect, position.x, position.y, position.z, velocity.x, velocity.y, velocity.z);
     }
 }