Clean up raytrace helper code

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

@@ -7,9 +7,10 @@ import com.minelittlepony.unicopia.entity.Equine;
 import com.minelittlepony.unicopia.item.enchantment.UEnchantments;
 
 import net.minecraft.enchantment.EnchantmentHelper;
-import net.minecraft.entity.Entity;
+import net.minecraft.entity.*;
-import net.minecraft.entity.LivingEntity;
+import net.minecraft.entity.decoration.AbstractDecorationEntity;
 import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.predicate.entity.EntityPredicates;
 
 public interface EquinePredicates {
     Predicate<Entity> IS_PLAYER = e -> e instanceof PlayerEntity;
@@ -28,6 +29,8 @@ public interface EquinePredicates {
 
     Predicate<LivingEntity> HAS_WANT_IT_NEED_IT = e -> EnchantmentHelper.getEquipmentLevel(UEnchantments.WANT_IT_NEED_IT, e) > 0;
 
+    Predicate<Entity> VALID_FOR_DISGUISE = EntityPredicates.EXCEPT_SPECTATOR.and(e -> !(e instanceof LightningEntity || e instanceof AbstractDecorationEntity));
+
     static Predicate<Entity> ofRace(Race race) {
         return raceMatches(race::equals);
     }

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

@@ -3,9 +3,8 @@ package com.minelittlepony.unicopia.ability;
 import com.minelittlepony.unicopia.Race;
 import com.minelittlepony.unicopia.ability.data.Multi;
 import com.minelittlepony.unicopia.entity.player.Pony;
-import com.minelittlepony.unicopia.util.RayTraceHelper;
+import com.minelittlepony.unicopia.util.TraceHelper;
 
-import net.minecraft.predicate.entity.EntityPredicates;
 import net.minecraft.util.math.BlockPos;
 
 /**
@@ -41,7 +40,7 @@ public class BatPonyHangAbility implements Ability<Multi> {
             return new Multi(BlockPos.ZERO, 0);
         }
 
-        return RayTraceHelper.doTrace(player.getMaster(), 5, 1, EntityPredicates.EXCEPT_SPECTATOR).getBlockPos()
+        return TraceHelper.findBlock(player.getMaster(), 5, 1)
                 .map(BlockPos::down)
                 .filter(player::canHangAt)
                 .map(pos -> new Multi(pos, 1))

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

@@ -3,7 +3,7 @@ package com.minelittlepony.unicopia.ability;
 import com.minelittlepony.unicopia.Race;
 import com.minelittlepony.unicopia.ability.data.Hit;
 import com.minelittlepony.unicopia.entity.player.Pony;
-import com.minelittlepony.unicopia.util.RayTraceHelper;
+import com.minelittlepony.unicopia.util.TraceHelper;
 
 import net.minecraft.entity.LivingEntity;
 import net.minecraft.entity.player.PlayerEntity;
@@ -42,7 +42,7 @@ public class CarryAbility implements Ability<Hit> {
     }
 
     protected LivingEntity findRider(PlayerEntity player, World w) {
-        return RayTraceHelper.<LivingEntity>findEntity(player, 10, 1, hit -> {
+        return TraceHelper.<LivingEntity>findEntity(player, 10, 1, hit -> {
             return hit instanceof LivingEntity && !player.isConnectedThroughVehicle(hit) && !(hit instanceof IPickupImmuned);
         }).orElse(null);
     }

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

@@ -3,21 +3,18 @@ package com.minelittlepony.unicopia.ability;
 
 import org.jetbrains.annotations.Nullable;
 
+import com.minelittlepony.unicopia.EquinePredicates;
 import com.minelittlepony.unicopia.USounds;
 import com.minelittlepony.unicopia.ability.data.Hit;
-import com.minelittlepony.unicopia.ability.magic.SpellPredicate;
 import com.minelittlepony.unicopia.ability.magic.spell.AbstractDisguiseSpell;
 import com.minelittlepony.unicopia.ability.magic.spell.effect.SpellType;
-import com.minelittlepony.unicopia.entity.behaviour.EntityAppearance;
 import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.mixin.MixinFallingBlockEntity;
 import com.minelittlepony.unicopia.particle.UParticles;
-import com.minelittlepony.unicopia.util.RayTraceHelper;
+import com.minelittlepony.unicopia.util.Trace;
+
 import net.minecraft.entity.Entity;
-import net.minecraft.entity.LightningEntity;
-import net.minecraft.entity.decoration.AbstractDecorationEntity;
 import net.minecraft.entity.player.PlayerEntity;
-import net.minecraft.predicate.entity.EntityPredicates;
 import net.minecraft.sound.SoundCategory;
 
 /**
@@ -42,16 +39,9 @@ public class ChangelingDisguiseAbility extends ChangelingFeedAbility {
             return;
         }
 
-        RayTraceHelper.Trace trace = RayTraceHelper.doTrace(player, 10, 1, EntityPredicates.EXCEPT_SPECTATOR.and(e -> !(e instanceof LightningEntity)));
+        Trace trace = Trace.create(player, 10, 1, EquinePredicates.VALID_FOR_DISGUISE);
 
-        Entity looked = trace.getEntity().filter(e -> !(e instanceof AbstractDecorationEntity)).map(e -> {
+        Entity looked = trace.getEntity().map(AbstractDisguiseSpell::getAppearance).orElseGet(() -> trace.getBlockPos().map(pos -> {
-            return e instanceof PlayerEntity ? Pony.of((PlayerEntity)e)
-                    .getSpellSlot()
-                    .get(SpellPredicate.IS_DISGUISE, true)
-                    .map(AbstractDisguiseSpell::getDisguise)
-                    .map(EntityAppearance::getAppearance)
-                    .orElse(e) : e;
-        }).orElseGet(() -> trace.getBlockPos().map(pos -> {
             if (!iplayer.getReferenceWorld().isAir(pos)) {
                 return MixinFallingBlockEntity.createInstance(player.getEntityWorld(), 0, 0, 0, iplayer.getReferenceWorld().getBlockState(pos));
             }

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

@@ -12,7 +12,7 @@ import com.minelittlepony.unicopia.particle.FollowingParticleEffect;
 import com.minelittlepony.unicopia.particle.ParticleUtils;
 import com.minelittlepony.unicopia.particle.UParticles;
 import com.minelittlepony.unicopia.util.MagicalDamageSource;
-import com.minelittlepony.unicopia.util.RayTraceHelper;
+import com.minelittlepony.unicopia.util.TraceHelper;
 import com.minelittlepony.unicopia.util.VecHelper;
 
 import net.minecraft.entity.Entity;
@@ -82,7 +82,7 @@ public class ChangelingFeedAbility implements Ability<Hit> {
     protected List<LivingEntity> getTargets(Pony player) {
         List<Entity> list = VecHelper.findInRange(player.getMaster(), player.getReferenceWorld(), player.getOriginVector(), 3, this::canDrain);
 
-        RayTraceHelper.<LivingEntity>findEntity(player.getMaster(), 17, 1,
+        TraceHelper.<LivingEntity>findEntity(player.getMaster(), 17, 1,
                 looked -> looked instanceof LivingEntity && !list.contains(looked) && canDrain(looked))
             .ifPresent(list::add);
 

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

@@ -5,7 +5,7 @@ import com.minelittlepony.unicopia.ability.data.Hit;
 import com.minelittlepony.unicopia.ability.data.Pos;
 import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.particle.MagicParticleEffect;
-import com.minelittlepony.unicopia.util.RayTraceHelper;
+import com.minelittlepony.unicopia.util.TraceHelper;
 import net.minecraft.block.BlockState;
 import net.minecraft.item.BoneMealItem;
 import net.minecraft.item.ItemStack;
@@ -36,7 +36,7 @@ public class EarthPonyGrowAbility implements Ability<Pos> {
 
     @Override
     public Pos tryActivate(Pony player) {
-        return RayTraceHelper.doTrace(player.getMaster(), 3, 1).getBlockPos().map(Pos::new).orElse(null);
+        return TraceHelper.findBlock(player.getMaster(), 3, 1).map(Pos::new).orElse(null);
     }
 
     @Override

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

@@ -60,8 +60,7 @@ public class EarthPonyKickAbility implements Ability<Pos> {
     public double getCostEstimate(Pony player) {
         double distance = MineLPDelegate.getInstance().getPlayerPonyRace(player.getMaster()).isDefault() ? 6 : -6;
 
-        return RayTraceHelper.doTrace(player.getMaster(), distance, 1)
+        return TraceHelper.findBlock(player.getMaster(), distance, 1)
-                .getBlockPos()
                 .filter(pos -> TreeType.at(pos, player.getReferenceWorld()) != TreeType.NONE)
                 .isPresent() ? 3 : 1;
     }
@@ -107,8 +106,7 @@ public class EarthPonyKickAbility implements Ability<Pos> {
     @Nullable
     @Override
     public Pos tryActivate(Pony player) {
-        return RayTraceHelper.doTrace(player.getMaster(), 6 * getKickDirection(player), 1)
+        return TraceHelper.findBlock(player.getMaster(), 6 * getKickDirection(player), 1)
-                .getBlockPos()
                 .filter(pos -> TreeType.at(pos, player.getReferenceWorld()) != TreeType.NONE)
                 .map(Pos::new)
                 .orElseGet(() -> getDefaultKickLocation(player));

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

@@ -12,7 +12,7 @@ import com.minelittlepony.unicopia.client.render.PlayerPoser.Animation;
 import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.item.AmuletItem;
 import com.minelittlepony.unicopia.particle.MagicParticleEffect;
-import com.minelittlepony.unicopia.util.RayTraceHelper;
+import com.minelittlepony.unicopia.util.TraceHelper;
 import com.minelittlepony.unicopia.util.VecHelper;
 
 import net.minecraft.item.ItemStack;
@@ -117,7 +117,7 @@ public class UnicornCastingAbility implements Ability<Hit> {
                     } else {
                         player.setAnimation(Animation.ARMS_UP);
                         if (s instanceof HomingSpell homer) {
-                            RayTraceHelper.doTrace(player.getMaster(), homer.getRange(player), 1, EntityPredicates.EXCEPT_CREATIVE_OR_SPECTATOR.and(EntityPredicates.VALID_ENTITY)).getEntity().ifPresent(homer::setTarget);
+                            TraceHelper.findEntity(player.getMaster(), homer.getRange(player), 1, EntityPredicates.VALID_ENTITY).ifPresent(homer::setTarget);
                         }
                         player.playSound(USounds.SPELL_CAST_SUCCESS, 0.05F, 2.2F);
                     }

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

@@ -10,7 +10,7 @@ import com.minelittlepony.unicopia.ability.magic.Caster;
 import com.minelittlepony.unicopia.client.render.PlayerPoser.Animation;
 import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.particle.MagicParticleEffect;
-import com.minelittlepony.unicopia.util.RayTraceHelper;
+import com.minelittlepony.unicopia.util.TraceHelper;
 import com.minelittlepony.unicopia.util.VecHelper;
 
 import net.minecraft.text.Text;
@@ -83,14 +83,9 @@ public class UnicornDispellAbility implements Ability<Pos> {
 
     private Optional<Caster<?>> getTarget(Pony player) {
         int maxDistance = player.getMaster().isCreative() ? 1000 : 100;
-        return RayTraceHelper.doTrace(player.getMaster(), maxDistance, 1,
+        return TraceHelper.findEntity(player.getMaster(), maxDistance, 1, EquinePredicates.IS_PLACED_SPELL).flatMap(Caster::of);
-                EquinePredicates.IS_PLACED_SPELL)
-                .getEntity()
-            .flatMap(Caster::of);
     }
 
-
-
     @Override
     public void preApply(Pony player, AbilitySlot slot) {
         player.getMagicalReserves().getExhaustion().multiply(3.3F);

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

@@ -8,9 +8,8 @@ import com.minelittlepony.unicopia.ability.magic.spell.effect.CustomisedSpellTyp
 import com.minelittlepony.unicopia.client.render.PlayerPoser.Animation;
 import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.particle.MagicParticleEffect;
-import com.minelittlepony.unicopia.util.RayTraceHelper;
+import com.minelittlepony.unicopia.util.TraceHelper;
 
-import net.minecraft.predicate.entity.EntityPredicates;
 import net.minecraft.util.ActionResult;
 import net.minecraft.util.Hand;
 import net.minecraft.util.Identifier;
@@ -94,9 +93,7 @@ public class UnicornProjectileAbility implements Ability<Hit> {
                 projectile.setHydrophobic();
 
                 if (spell instanceof HomingSpell) {
-                    RayTraceHelper.doTrace(player.getMaster(), 600, 1, EntityPredicates.EXCEPT_SPECTATOR).getEntity().filter(((HomingSpell)spell)::setTarget).ifPresent(target -> {
+                    TraceHelper.findEntity(player.getMaster(), 600, 1).filter(((HomingSpell)spell)::setTarget).ifPresent(projectile::setHomingTarget);
-                        projectile.setHomingTarget(target);
-                    });
                 }
             });
         }

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

@@ -7,7 +7,8 @@ import com.minelittlepony.unicopia.ability.data.Pos;
 import com.minelittlepony.unicopia.ability.magic.Caster;
 import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.particle.MagicParticleEffect;
-import com.minelittlepony.unicopia.util.RayTraceHelper;
+import com.minelittlepony.unicopia.util.Trace;
+
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
 import net.minecraft.block.FenceBlock;
@@ -21,10 +22,7 @@ import net.minecraft.predicate.entity.EntityPredicates;
 import net.minecraft.server.network.ServerPlayerEntity;
 import net.minecraft.sound.SoundCategory;
 import net.minecraft.util.Identifier;
-import net.minecraft.util.hit.BlockHitResult;
-import net.minecraft.util.hit.HitResult;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.Direction;
 import net.minecraft.util.math.Vec3d;
 import net.minecraft.world.World;
 
@@ -72,32 +70,25 @@ public class UnicornTeleportAbility implements Ability<Pos> {
         }
 
         int maxDistance = player.getMaster().isCreative() ? 1000 : 100;
-        HitResult ray = RayTraceHelper.doTrace(player.getMaster(), maxDistance, 1, EntityPredicates.EXCEPT_CREATIVE_OR_SPECTATOR).getResult();
+
 
         World w = player.getReferenceWorld();
 
-        if (ray.getType() == HitResult.Type.MISS) {
+        Trace trace = Trace.create(player.getMaster(), maxDistance, 1, EntityPredicates.EXCEPT_SPECTATOR);
-            return null;
+        return trace.getBlockOrEntityPos().map(pos -> {
-        }
+            final BlockPos originalPos = pos;
-
-        BlockPos pos;
-
-        if (ray.getType() == HitResult.Type.ENTITY) {
-            pos = new BlockPos(ray.getPos());
-        } else {
-            pos = ((BlockHitResult)ray).getBlockPos();
-        }
 
             boolean airAbove = enterable(w, pos.up()) && enterable(w, pos.up(2));
 
-        if (exception(w, pos, player.getMaster()) && ray.getType() == HitResult.Type.BLOCK) {
+            if (exception(w, pos, player.getMaster())) {
-            Direction sideHit = ((BlockHitResult)ray).getSide();
+                final BlockPos p = pos;
-
+                pos = trace.getSide().map(sideHit -> {
                     if (player.getMaster().isSneaking()) {
                         sideHit = sideHit.getOpposite();
                     }
 
-            pos = pos.offset(sideHit);
+                    return p.offset(sideHit);
+                }).orElse(pos);
             }
 
             if (enterable(w, pos.down())) {
@@ -108,10 +99,7 @@ public class UnicornTeleportAbility implements Ability<Pos> {
                         return null;
                     }
 
-                pos = new BlockPos(
+                    pos = originalPos.up(2);
-                        ray.getPos().getX(),
-                        pos.getY() + 2,
-                        ray.getPos().getZ());
                 }
             }
 
@@ -120,7 +108,8 @@ public class UnicornTeleportAbility implements Ability<Pos> {
                 return null;
             }
 
-        return new Pos(pos.getX(), pos.getY(), pos.getZ());
+            return new Pos(pos);
+        }).orElse(null);
     }
 
     @Override

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

@@ -3,12 +3,15 @@ package com.minelittlepony.unicopia.ability.magic.spell;
 import java.util.Optional;
 
 import com.minelittlepony.unicopia.ability.magic.Caster;
+import com.minelittlepony.unicopia.ability.magic.SpellPredicate;
 import com.minelittlepony.unicopia.ability.magic.spell.effect.*;
 import com.minelittlepony.unicopia.entity.behaviour.Disguise;
 import com.minelittlepony.unicopia.entity.behaviour.EntityAppearance;
 import com.minelittlepony.unicopia.entity.player.Pony;
 import com.minelittlepony.unicopia.projectile.ProjectileImpactListener;
 
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.entity.projectile.ProjectileEntity;
 import net.minecraft.nbt.NbtCompound;
 
@@ -70,4 +73,13 @@ public abstract class AbstractDisguiseSpell extends AbstractSpell implements Dis
     public Optional<EntityAppearance> getAppearance() {
         return Optional.ofNullable(disguise);
     }
+
+    public static Entity getAppearance(Entity e) {
+        return e instanceof PlayerEntity ? Pony.of((PlayerEntity)e)
+                .getSpellSlot()
+                .get(SpellPredicate.IS_DISGUISE, true)
+                .map(AbstractDisguiseSpell::getDisguise)
+                .map(EntityAppearance::getAppearance)
+                .orElse(e) : e;
+    }
 }

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

@@ -1,6 +1,5 @@
 package com.minelittlepony.unicopia.ability.magic.spell.effect;
 
-import java.util.Optional;
 import java.util.function.Consumer;
 
 import org.jetbrains.annotations.Nullable;
@@ -12,15 +11,12 @@ import com.minelittlepony.unicopia.ability.magic.spell.trait.SpellTraits;
 import com.minelittlepony.unicopia.ability.magic.spell.trait.Trait;
 import com.minelittlepony.unicopia.mixin.MixinFallingBlockEntity;
 import com.minelittlepony.unicopia.projectile.MagicProjectileEntity;
-import com.minelittlepony.unicopia.util.RayTraceHelper;
+import com.minelittlepony.unicopia.util.Trace;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.FallingBlockEntity;
 import net.minecraft.predicate.entity.EntityPredicates;
-import net.minecraft.util.hit.BlockHitResult;
-import net.minecraft.util.hit.EntityHitResult;
-import net.minecraft.util.hit.HitResult;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.Vec3d;
 import net.minecraft.world.World;
@@ -87,16 +83,14 @@ public class CatapultSpell extends AbstractSpell implements ProjectileSpell {
 
         double maxDistance = 2 + (getTraits().get(Trait.FOCUS) - 50) * 8;
 
-        HitResult ray = RayTraceHelper.doTrace(caster.getEntity(), maxDistance, 1, EntityPredicates.EXCEPT_SPECTATOR).getResult();
+        Trace trace = Trace.create(caster.getEntity(), maxDistance, 1, EntityPredicates.EXCEPT_SPECTATOR);
-
+        trace.getEntity().ifPresentOrElse(apply, () -> {
-        if (ray.getType() == HitResult.Type.ENTITY) {
+            trace.ifBlock(pos -> {
-            EntityHitResult result = (EntityHitResult)ray;
+                if (caster.canModifyAt(pos)) {
-            Optional.ofNullable(result.getEntity()).ifPresent(apply);
+                    createBlockEntity(caster.getReferenceWorld(), pos, apply);
-        } else if (ray.getType() == HitResult.Type.BLOCK) {
-            if (caster.canModifyAt(((BlockHitResult)ray).getBlockPos())) {
-                createBlockEntity(caster.getReferenceWorld(), ((BlockHitResult)ray).getBlockPos(), apply);
-            }
                 }
+            });
+        });
     }
 
     static void createBlockEntity(World world, BlockPos bpos, @Nullable Consumer<Entity> apply) {

src/main/java/com/minelittlepony/unicopia/command/DisguiseCommand.java

@@ -2,6 +2,7 @@ package com.minelittlepony.unicopia.command;
 
 import java.util.function.Function;
 
+import com.minelittlepony.unicopia.EquinePredicates;
 import com.minelittlepony.unicopia.InteractionManager;
 import com.minelittlepony.unicopia.ability.magic.SpellPredicate;
 import com.minelittlepony.unicopia.ability.magic.spell.effect.SpellType;
@@ -20,7 +21,6 @@ import net.minecraft.command.argument.NbtCompoundArgumentType;
 import net.minecraft.command.suggestion.SuggestionProviders;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.EntityType;
-import net.minecraft.entity.decoration.AbstractDecorationEntity;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.nbt.NbtCompound;
 import net.minecraft.server.command.CommandManager;
@@ -77,7 +77,7 @@ public class DisguiseCommand {
     }
 
     static int disguise(ServerCommandSource source, PlayerEntity player, Entity entity) throws CommandSyntaxException {
-        if (entity == null || entity instanceof AbstractDecorationEntity) {
+        if (entity == null || !EquinePredicates.VALID_FOR_DISGUISE.test(entity)) {
             throw FAILED_EXCEPTION.create();
         }
 

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

@@ -1,7 +1,7 @@
 package com.minelittlepony.unicopia.entity.behaviour;
 
 import com.minelittlepony.unicopia.entity.player.Pony;
-import com.minelittlepony.unicopia.util.RayTraceHelper;
+import com.minelittlepony.unicopia.util.TraceHelper;
 
 import net.minecraft.entity.LivingEntity;
 import net.minecraft.entity.mob.MobEntity;
@@ -26,7 +26,7 @@ public class MobBehaviour<T extends MobEntity> extends EntityBehaviour<T> {
     }
 
     protected LivingEntity findTarget(Pony player, T entity) {
-        return RayTraceHelper.<LivingEntity>findEntity(player.getEntity(), 6, 1,
+        return TraceHelper.<LivingEntity>findEntity(player.getEntity(), 6, 1,
                 e -> e instanceof LivingEntity && e != entity && !player.isOwnedBy(e))
                 .orElseGet(() -> getDummy(entity));
     }

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

@@ -1,7 +1,5 @@
 package com.minelittlepony.unicopia.item;
 
-import java.util.Optional;
-
 import com.minelittlepony.unicopia.UTags;
 import com.minelittlepony.unicopia.Unicopia;
 import com.minelittlepony.unicopia.advancement.UCriteria;
@@ -10,7 +8,7 @@ import com.minelittlepony.unicopia.item.toxin.*;
 import com.minelittlepony.unicopia.particle.ParticleUtils;
 import com.minelittlepony.unicopia.particle.UParticles;
 import com.minelittlepony.unicopia.util.MagicalDamageSource;
-import com.minelittlepony.unicopia.util.RayTraceHelper;
+import com.minelittlepony.unicopia.util.TraceHelper;
 import com.minelittlepony.unicopia.util.Registries;
 
 import net.minecraft.entity.Entity;
@@ -22,7 +20,6 @@ import net.minecraft.entity.passive.PigEntity;
 import net.minecraft.entity.passive.VillagerEntity;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.item.*;
-import net.minecraft.predicate.entity.EntityPredicates;
 import net.minecraft.server.network.ServerPlayerEntity;
 import net.minecraft.server.world.ServerWorld;
 import net.minecraft.text.Text;
@@ -44,14 +41,9 @@ public class ZapAppleItem extends Item implements ChameleonItem, ToxicHolder {
     @Override
     public TypedActionResult<ItemStack> use(World world, PlayerEntity player, Hand hand) {
         ItemStack stack = player.getStackInHand(hand);
-
+        return TraceHelper.findEntity(player, 5, 1, e -> canFeedTo(stack, e))
-        Optional<Entity> entity = RayTraceHelper.doTrace(player, 5, 1, EntityPredicates.EXCEPT_CREATIVE_OR_SPECTATOR.and(e -> canFeedTo(stack, e))).getEntity();
+                .map(entity -> onFedTo(stack, player, entity))
-
+                .orElseGet(() -> super.use(world, player, hand));
-        if (entity.isPresent()) {
-            return onFedTo(stack, player, entity.get());
-        }
-
-        return super.use(world, player, hand);
     }
 
     @Override

src/main/java/com/minelittlepony/unicopia/util/RayTraceHelper.java

@@ -1,113 +0,0 @@
-package com.minelittlepony.unicopia.util;
-
-import java.util.Optional;
-import java.util.function.Consumer;
-import java.util.function.Predicate;
-
-import org.jetbrains.annotations.Nullable;
-
-import net.minecraft.entity.Entity;
-import net.minecraft.entity.projectile.ProjectileUtil;
-import net.minecraft.predicate.entity.EntityPredicates;
-import net.minecraft.util.hit.BlockHitResult;
-import net.minecraft.util.hit.EntityHitResult;
-import net.minecraft.util.hit.HitResult;
-import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.Box;
-import net.minecraft.util.math.Vec3d;
-
-public class RayTraceHelper {
-    public static <T extends Entity> Optional<T> findEntity(Entity e, double distance, float tickDelta, Predicate<Entity> predicate) {
-        return doTrace(e, distance, tickDelta, EntityPredicates.EXCEPT_CREATIVE_OR_SPECTATOR.and(predicate)).getEntity();
-    }
-
-    /**
-     * Performs a ray trace from the given entity and returns
-     * a result for the first Entity or block that the ray intercepts.
-     *
-     *
-     * @param e            Entity to start from
-     * @param distance     Maximum distance
-     * @param tickDelta    Client partial ticks
-     *
-     * @return A Trace describing what was found.
-     */
-    public static Trace doTrace(Entity e, double distance, float tickDelta) {
-        return doTrace(e, distance, tickDelta, EntityPredicates.EXCEPT_SPECTATOR);
-    }
-
-    /**
-     * Performs a ray trace from the given entity and returns
-     * a result for the first Entity that passes the given predicate
-     * or block that the ray intercepts.
-     *
-     *
-     * @param e            Entity to start from
-     * @param distance     Maximum distance
-     * @param tickDelta    Client partial ticks
-     * @param predicate    Predicate test to filter entities
-     *
-     * @return A Trace describing what was found.
-     */
-    public static Trace doTrace(Entity e, double distance, float tickDelta, Predicate<Entity> predicate) {
-        final Vec3d orientation = e.getRotationVec(tickDelta);
-        final Vec3d start = e.getCameraPosVec(tickDelta);
-
-        final Box box = e.getBoundingBox().stretch(orientation.multiply(Math.abs(distance))).expand(10);
-
-        EntityHitResult pointedEntity = ProjectileUtil.raycast(e, start, start.add(orientation.multiply(distance)), box, predicate, Math.abs(distance));
-
-        if (pointedEntity != null) {
-            return new Trace(pointedEntity);
-        }
-
-        return new Trace(e.raycast(distance, tickDelta, false));
-    }
-
-    public static class Trace {
-        @Nullable
-        private final HitResult result;
-
-        Trace(@Nullable HitResult result) {
-            this.result = result;
-        }
-
-        @Nullable
-        public HitResult getResult() {
-            return result;
-        }
-
-        @SuppressWarnings("unchecked")
-        public <T extends Entity> Optional<T> getEntity() {
-            if (result != null && result.getType() == HitResult.Type.ENTITY) {
-                return Optional.of((T)((EntityHitResult)result).getEntity());
-            }
-            return Optional.empty();
-        }
-
-        @SuppressWarnings("unchecked")
-        public <T extends Entity> Optional<T> getEntity(Predicate<T> predicate) {
-            if (result != null && result.getType() == HitResult.Type.ENTITY) {
-                return Optional.of((T)((EntityHitResult)result).getEntity()).filter(predicate);
-            }
-            return Optional.empty();
-        }
-
-        public Optional<BlockPos> getBlockPos() {
-            if (result != null && result.getType() == HitResult.Type.BLOCK) {
-                return Optional.of(((BlockHitResult)result).getBlockPos());
-            }
-            return Optional.empty();
-        }
-
-        public Trace ifEntity(Consumer<Entity> consumer) {
-            getEntity().ifPresent(consumer);
-            return this;
-        }
-
-        public Trace ifBlock(Consumer<BlockPos> consumer) {
-            getBlockPos().ifPresent(consumer);
-            return this;
-        }
-    }
-}

src/main/java/com/minelittlepony/unicopia/util/Trace.java

@@ -0,0 +1,76 @@
+package com.minelittlepony.unicopia.util;
+
+import java.util.Optional;
+import java.util.function.Consumer;
+import java.util.function.Predicate;
+
+import net.minecraft.entity.Entity;
+import net.minecraft.util.hit.*;
+import net.minecraft.util.math.*;
+
+@SuppressWarnings("unchecked")
+public record Trace(
+        Optional<? extends HitResult> result
+    ) {
+    /**
+     * Performs a ray trace from the given entity and returns
+     * a result for the first Entity that passes the given predicate
+     * or block that the ray intercepts.
+     *
+     *
+     * @param e            Entity to start from
+     * @param distance     Maximum distance
+     * @param tickDelta    Client partial ticks
+     * @param predicate    Predicate test to filter entities
+     *
+     * @return A Trace describing what was found.
+     */
+    public static Trace create(Entity e, double distance, float tickDelta, Predicate<Entity> predicate) {
+        return new Trace(
+                ((Optional<HitResult>)(Optional<?>)TraceHelper.traceEntity(e, distance, tickDelta, predicate))
+                .or(() -> Optional.ofNullable(e.raycast(distance, tickDelta, false)))
+        );
+    }
+
+    static <T extends Entity> T toEntity(EntityHitResult hit) {
+        return (T)hit.getEntity();
+    }
+
+    public Optional<EntityHitResult> getEntityResult() {
+        return result()
+                .filter(s -> s.getType() == HitResult.Type.ENTITY)
+                .map(EntityHitResult.class::cast);
+    }
+
+    public Optional<BlockHitResult> getBlockResult() {
+        return result()
+                .filter(s -> s.getType() == HitResult.Type.BLOCK)
+                .map(BlockHitResult.class::cast);
+    }
+
+    public <T extends Entity> Optional<T> getEntity() {
+        return getEntityResult().map(Trace::toEntity);
+    }
+
+    public Optional<BlockPos> getBlockPos() {
+        return getBlockResult().map(BlockHitResult::getBlockPos);
+    }
+
+    public Optional<BlockPos> getBlockOrEntityPos() {
+        return getBlockPos().or(() -> getEntity().map(Entity::getBlockPos));
+    }
+
+    public Optional<Direction> getSide() {
+        return getBlockResult().map(BlockHitResult::getSide);
+    }
+
+    public Trace ifEntity(Consumer<Entity> consumer) {
+        getEntity().ifPresent(consumer);
+        return this;
+    }
+
+    public Trace ifBlock(Consumer<BlockPos> consumer) {
+        getBlockPos().ifPresent(consumer);
+        return this;
+    }
+}

src/main/java/com/minelittlepony/unicopia/util/TraceHelper.java

@@ -0,0 +1,88 @@
+package com.minelittlepony.unicopia.util;
+
+import java.util.*;
+import java.util.function.*;
+
+import net.minecraft.block.BlockState;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.projectile.ProjectileUtil;
+import net.minecraft.predicate.entity.EntityPredicates;
+import net.minecraft.util.hit.EntityHitResult;
+import net.minecraft.util.math.*;
+import net.minecraft.world.BlockView;
+
+public class TraceHelper {
+    /**
+     * Performs a ray trace from the given entity and returns
+     * a result for the first Entity that the ray intercepts.
+     *
+     *
+     * @param e            Entity to start from
+     * @param distance     Maximum distance
+     * @param tickDelta    Client partial ticks
+     */
+    public static <T extends Entity> Optional<T> findEntity(Entity e, double distance, float tickDelta, Predicate<Entity> predicate) {
+        return traceEntity(e, distance, tickDelta, EntityPredicates.EXCEPT_CREATIVE_OR_SPECTATOR.and(predicate)).map(Trace::toEntity);
+    }
+
+    /**
+     * Performs a ray trace from the given entity and returns
+     * a result for the first Entity that the ray intercepts.
+     *
+     *
+     * @param e            Entity to start from
+     * @param distance     Maximum distance
+     * @param tickDelta    Client partial ticks
+     */
+    public static <T extends Entity> Optional<T> findEntity(Entity e, double distance, float tickDelta) {
+        return traceEntity(e, distance, tickDelta, EntityPredicates.EXCEPT_CREATIVE_OR_SPECTATOR).map(Trace::toEntity);
+    }
+
+    /**
+     * Performs a ray trace from the given entity and returns
+     * a result for the first block that the ray intercepts.
+     *
+     *
+     * @param e            Entity to start from
+     * @param distance     Maximum distance
+     * @param tickDelta    Client partial ticks
+     */
+    public static Optional<BlockPos> findBlock(Entity e, double distance, float tickDelta) {
+        return Trace.create(e, distance, tickDelta, EntityPredicates.EXCEPT_CREATIVE_OR_SPECTATOR).getBlockPos();
+    }
+
+    /**
+     * Performs a raytrace and returns all matching blocks the ray passed through.
+     *
+     * @param e            Entity to start from
+     * @param distance     Maximum distance
+     * @param tickDelta    Client partial ticks
+     * @param predicate    Predicate test to filter block states
+     *
+     * @return List of matching positions
+     */
+    public static List<BlockPos> findBlocks(Entity e, double distance, float tickDelta, Predicate<BlockState> predicate) {
+        final Vec3d orientation = e.getRotationVec(tickDelta);
+        final Vec3d start = e.getCameraPosVec(tickDelta);
+
+        return BlockView.raycast(start, start.add(orientation.multiply(distance)), new ArrayList<BlockPos>(), (ctx, pos) -> {
+            if (predicate.test(e.world.getBlockState(pos))) {
+                ctx.add(pos);
+            }
+            return null;
+        }, ctx -> {
+            return ctx;
+        });
+    }
+
+    static Optional<EntityHitResult> traceEntity(Entity e, double distance, float tickDelta, Predicate<Entity> predicate) {
+        final Vec3d orientation = e.getRotationVec(tickDelta);
+        final Vec3d start = e.getCameraPosVec(tickDelta);
+
+        final Box box = e.getBoundingBox().stretch(orientation.multiply(Math.abs(distance))).expand(10);
+
+        return Optional.ofNullable(
+            ProjectileUtil.raycast(e, start, start.add(orientation.multiply(distance)), box, predicate, Math.abs(distance))
+        );
+    }
+}