Bat ponies can now sleep during the day to skip to the night

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

@@ -29,7 +29,7 @@ public record Race (boolean canCast, FlightType flightType, boolean canUseEarth,
     private static final DynamicCommandExceptionType UNKNOWN_RACE_EXCEPTION = new DynamicCommandExceptionType(id -> Text.translatable("race.unknown", id));
 
     public static Race register(String name, boolean magic, FlightType flight, boolean earth, boolean nocturnal) {
-        return register(Unicopia.id(name), magic, flight, earth, false);
+        return register(Unicopia.id(name), magic, flight, earth, nocturnal);
     }
 
     public static Race register(Identifier id, boolean magic, FlightType flight, boolean earth, boolean nocturnal) {

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

@@ -18,7 +18,6 @@ import com.minelittlepony.unicopia.ability.magic.spell.trait.TraitLoader;
 import com.minelittlepony.unicopia.advancement.UCriteria;
 import com.minelittlepony.unicopia.block.UBlocks;
 import com.minelittlepony.unicopia.block.UTreeGen;
-import com.minelittlepony.unicopia.block.data.*;
 import com.minelittlepony.unicopia.block.state.StateMapLoader;
 import com.minelittlepony.unicopia.command.Commands;
 import com.minelittlepony.unicopia.container.SpellbookChapterLoader;
@@ -31,6 +30,7 @@ import com.minelittlepony.unicopia.item.enchantment.UEnchantments;
 import com.minelittlepony.unicopia.network.Channel;
 import com.minelittlepony.unicopia.particle.UParticles;
 import com.minelittlepony.unicopia.server.world.BlockDestructionManager;
+import com.minelittlepony.unicopia.server.world.NocturnalSleepManager;
 import com.minelittlepony.unicopia.server.world.UGameRules;
 import com.minelittlepony.unicopia.server.world.WeatherConditions;
 import com.minelittlepony.unicopia.server.world.ZapAppleStageStore;
@@ -71,6 +71,8 @@ public class Unicopia implements ModInitializer {
                 SpellbookChapterLoader.INSTANCE.sendUpdate(w.getServer());
             }
         });
+        NocturnalSleepManager.bootstrap();
+
         ResourceManagerHelper.get(ResourceType.SERVER_DATA).registerReloadListener(TreeTypeLoader.INSTANCE);
         ResourceManagerHelper.get(ResourceType.SERVER_DATA).registerReloadListener(UEnchantments.POISONED_JOKE);
         ResourceManagerHelper.get(ResourceType.SERVER_DATA).registerReloadListener(new TraitLoader());

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

@@ -47,6 +47,7 @@ import net.minecraft.server.network.ServerPlayerEntity;
 import net.minecraft.server.world.ServerWorld;
 import net.minecraft.sound.SoundEvents;
 import net.minecraft.text.Text;
+import net.minecraft.util.ActionResult;
 import net.minecraft.util.Hand;
 import net.minecraft.util.math.*;
 import net.minecraft.world.GameMode;
@@ -571,8 +572,12 @@ public class Pony extends Living<PlayerEntity> implements Copyable<Pony>, Update
                 .map(p -> Text.translatable("block.unicopia.bed.not_safe"));
     }
 
-    public boolean isDaytime() {
-        return asWorld().getGameRules().getBoolean(UGameRules.DO_NOCTURNAL_BAT_PONIES) && getActualSpecies().isNocturnal() ? !asWorld().isDay() : asWorld().isDay();
+    public ActionResult canSleepNow() {
+        if (asWorld().getGameRules().getBoolean(UGameRules.DO_NOCTURNAL_BAT_PONIES) && getActualSpecies().isNocturnal()) {
+            return asWorld().isDay() ? ActionResult.SUCCESS : ActionResult.FAIL;
+        }
+
+        return ActionResult.PASS;
     }
 
     @Override

src/main/java/com/minelittlepony/unicopia/mixin/MixinPlayerEntity.java

@@ -5,7 +5,6 @@ import org.spongepowered.asm.mixin.gen.Invoker;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.ModifyVariable;
-import org.spongepowered.asm.mixin.injection.Redirect;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
 
 import com.minelittlepony.unicopia.entity.duck.PlayerEntityDuck;
@@ -22,10 +21,10 @@ import net.minecraft.entity.attribute.DefaultAttributeContainer;
 import net.minecraft.entity.damage.DamageSource;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.item.ItemStack;
+import net.minecraft.server.network.ServerPlayerEntity;
 import net.minecraft.stat.Stats;
 import net.minecraft.util.Unit;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.world.World;
 
 @Mixin(PlayerEntity.class)
 abstract class MixinPlayerEntity extends LivingEntity implements Equine.Container<Pony>, PlayerEntityDuck {
@@ -70,7 +69,7 @@ abstract class MixinPlayerEntity extends LivingEntity implements Equine.Containe
             get().trySleep(pos).ifPresent(reason -> {
                 ((PlayerEntity)(Object)this).sendMessage(reason, true);
 
-                info.setReturnValue(Either.right(Unit.INSTANCE));
+                info.setReturnValue(Either.left(ServerPlayerEntity.SleepFailureReason.OTHER_PROBLEM));
             });
         }
     }
@@ -101,12 +100,4 @@ abstract class MixinPlayerEntity extends LivingEntity implements Equine.Containe
     private void onGetBlockBreakingSpeed(BlockState state, CallbackInfoReturnable<Float> info) {
         info.setReturnValue(info.getReturnValue() * get().getBlockBreakingSpeed());
     }
-
-    @Redirect(method = "tick", at = @At(
-            value = "INVOKE",
-            target = "net/minecraft/world/World.isDay()Z"
-    ))
-    private boolean redirectIsDay(World world) {
-        return get().isDaytime();
-    }
 }

src/main/java/com/minelittlepony/unicopia/mixin/MixinServerPlayerEntity.java

@@ -4,16 +4,21 @@ import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.gen.Accessor;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
-import org.spongepowered.asm.mixin.injection.Redirect;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
 
 import com.minelittlepony.unicopia.entity.Equine;
 import com.minelittlepony.unicopia.entity.duck.ServerPlayerEntityDuck;
 import com.minelittlepony.unicopia.entity.player.Pony;
+import com.minelittlepony.unicopia.server.world.UGameRules;
+import com.mojang.datafixers.util.Either;
+
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.screen.ScreenHandlerListener;
 import net.minecraft.server.network.ServerPlayerEntity;
-import net.minecraft.world.World;
+import net.minecraft.text.Text;
+import net.minecraft.util.Unit;
+import net.minecraft.util.math.BlockPos;
 
 @Mixin(ServerPlayerEntity.class)
 abstract class MixinServerPlayerEntity extends PlayerEntity implements ScreenHandlerListener, Equine.Container<Pony>, ServerPlayerEntityDuck {
@@ -29,11 +34,14 @@ abstract class MixinServerPlayerEntity extends PlayerEntity implements ScreenHan
         get().copyFrom(((Equine.Container<Pony>)oldPlayer).get(), alive);
     }
 
-    @Redirect(method = "trySleep", at = @At(
-            value = "INVOKE",
-            target = "net/minecraft/world/World.isDay()Z"
-    ))
-    private boolean redirectIsDay(World world) {
-        return get().isDaytime();
+    @Inject(method = "trySleep(Lnet/minecraft/util/math/BlockPos;)Lcom/mojang/datafixers/util/Either;",
+            at = @At(value = "FIELD", target = "net/minecraft/entity/player/PlayerEntity$SleepFailureReason.NOT_POSSIBLE_NOW"),
+            cancellable = true)
+    private void onTrySleep(BlockPos pos, CallbackInfoReturnable<Either<PlayerEntity.SleepFailureReason, Unit>> info) {
+        if (get().getActualSpecies().isNocturnal() && get().asWorld().getGameRules().getBoolean(UGameRules.DO_NOCTURNAL_BAT_PONIES)) {
+            ((PlayerEntity)this).sendMessage(Text.translatable("block.minecraft.bed.no_sleep.nocturnal"), true);
+
+            info.setReturnValue(Either.left(PlayerEntity.SleepFailureReason.OTHER_PROBLEM));
+        }
     }
 }

src/main/java/com/minelittlepony/unicopia/mixin/MixinServerWorld.java

@@ -1,24 +1,67 @@
 package com.minelittlepony.unicopia.mixin;
 
+import java.util.List;
+import java.util.function.BooleanSupplier;
+
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Constant;
 import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.ModifyConstant;
+import org.spongepowered.asm.mixin.injection.ModifyVariable;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
 import com.minelittlepony.unicopia.server.world.BlockDestructionManager;
+import com.minelittlepony.unicopia.server.world.NocturnalSleepManager;
 
 import net.minecraft.block.BlockState;
+import net.minecraft.server.network.ServerPlayerEntity;
 import net.minecraft.server.world.ServerWorld;
+import net.minecraft.server.world.SleepManager;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.StructureWorldAccess;
 import net.minecraft.world.World;
 
 @Mixin(ServerWorld.class)
-abstract class MixinServerWorld extends World implements StructureWorldAccess {
+abstract class MixinServerWorld extends World implements StructureWorldAccess, NocturnalSleepManager.Source {
+
+    private NocturnalSleepManager nocturnalSleepManager;
+
     MixinServerWorld() { super(null, null, null, null, false, false, 0, 0); }
 
     @Inject(method = "onBlockChanged", at = @At("HEAD"))
     private void onOnBlockChanged(BlockPos pos, BlockState oldState, BlockState newState, CallbackInfo info) {
         ((BlockDestructionManager.Source)this).getDestructionManager().onBlockChanged(pos, oldState, newState);
     }
+
+    @ModifyConstant(method = "sendSleepingStatus()V", constant = @Constant(
+            stringValue = "sleep.skipping_night"
+    ))
+    private String modifySleepingMessage(String initial) {
+        return getNocturnalSleepManager().getTimeSkippingMessage(initial);
+    }
+
+    @Override
+    public NocturnalSleepManager getNocturnalSleepManager() {
+        if (nocturnalSleepManager == null) {
+            nocturnalSleepManager = new NocturnalSleepManager((ServerWorld)(Object)this);
+        }
+        return nocturnalSleepManager;
+    }
+
+    @Inject(method = "tick(Ljava/util/function/BooleanSupplier;)V", at = @At(
+        value = "INVOKE",
+        target = "net/minecraft/server/world/ServerWorld.wakeSleepingPlayers()V"
+    ))
+    public void beforeWakeup(BooleanSupplier shouldKeepTicking, CallbackInfo info) {
+        getNocturnalSleepManager().skipTime();
+    }
 }
+
+@Mixin(SleepManager.class)
+abstract class MixinSleepManager {
+    @ModifyVariable(method = "update(Ljava/util/List;)Z", at = @At("HEAD"))
+    public List<ServerPlayerEntity> modifyPlayers(List<ServerPlayerEntity> players) {
+        return players.size() <= 0 ? players : ((NocturnalSleepManager.Source)players.get(0).getWorld()).getNocturnalSleepManager().filterPlayers(players);
+    }
+}

src/main/java/com/minelittlepony/unicopia/server/world/NocturnalSleepManager.java

@@ -0,0 +1,58 @@
+package com.minelittlepony.unicopia.server.world;
+
+import java.util.List;
+
+import com.minelittlepony.unicopia.entity.player.Pony;
+
+import net.fabricmc.fabric.api.entity.event.v1.EntitySleepEvents;
+import net.minecraft.server.network.ServerPlayerEntity;
+import net.minecraft.server.world.ServerWorld;
+import net.minecraft.server.world.SleepManager;
+import net.minecraft.world.GameRules;
+
+public class NocturnalSleepManager extends SleepManager {
+    public static final long DAY_LENGTH = 24000L;
+
+    private final ServerWorld world;
+
+    public NocturnalSleepManager(ServerWorld world) {
+        this.world = world;
+    }
+
+    public String getTimeSkippingMessage(String nightSkippingMessage) {
+        if (world.getGameRules().getBoolean(UGameRules.DO_NOCTURNAL_BAT_PONIES) && world.isDay()) {
+            return "sleep.skipping_day";
+        }
+
+        return nightSkippingMessage;
+    }
+
+    public void skipTime() {
+        if (world.getGameRules().getBoolean(GameRules.DO_DAYLIGHT_CYCLE)) {
+            world.setTimeOfDay(world.getLevelProperties().getTimeOfDay() - DAY_LENGTH + 13500);
+        }
+    }
+
+    public List<ServerPlayerEntity> getApplicablePlayer() {
+        return filterPlayers(world.getPlayers());
+    }
+
+    public List<ServerPlayerEntity> filterPlayers(List<ServerPlayerEntity> players) {
+        if (!world.getGameRules().getBoolean(UGameRules.DO_NOCTURNAL_BAT_PONIES)) {
+            return players;
+        }
+
+        return players.stream().filter(player -> {
+            Pony pony = Pony.of(player);
+            return (pony.getActualSpecies().isNocturnal() == world.isDay());
+        }).toList();
+    }
+
+    public static void bootstrap() {
+        EntitySleepEvents.ALLOW_SLEEP_TIME.register((player, pos, isDay) -> Pony.of(player).canSleepNow());
+    }
+
+    public interface Source {
+        NocturnalSleepManager getNocturnalSleepManager();
+    }
+}

src/main/resources/assets/unicopia/lang/en_us.json

@@ -2,6 +2,7 @@
 
   "block.unicopia.bed.not_safe": "You may not rest here, there are enemies nearby",
   "block.unicopia.bed.not_tired": "You do not feel tired right now",
+  "block.minecraft.bed.no_sleep.nocturnal": "You can only sleep in the day or during thunderstorms",
 
   "ability.unicopia.empty_hooves": "I need to find a jar",
   "ability.unicopia.indoors": "I can't see the sky from here",

src/main/resources/unicopia.mixin.json

@@ -28,6 +28,7 @@
     "MixinServerPlayerEntity",
     "MixinServerPlayNetworkHandler",
     "MixinServerWorld",
+    "MixinSleepManager",
     "MixinSheepEntity",
     "MixinShulkerEntity",
     "MixinStateManager",