Yet more minor tweaks and fixes

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

@@ -40,7 +40,7 @@ public class Creature extends Living<LivingEntity> {
         targets.add(1, new WantItNeedItTargetGoal((MobEntity)entity));
         goals.add(1, new WantItTakeItGoal((MobEntity)entity));
         if (entity.getType().getSpawnGroup() == SpawnGroup.MONSTER) {
-            goals.add(2, new BreakHeartGoal((MobEntity)entity));
+            goals.add(3, new BreakHeartGoal((MobEntity)entity));
         }
     }
 

src/main/java/com/minelittlepony/unicopia/entity/ai/BreakHeartGoal.java

@@ -31,7 +31,11 @@ public class BreakHeartGoal extends Goal {
     @Override
     public boolean canStart() {
         Optional<FloatingArtefactEntity> item = VecHelper.findInRange(mob, mob.world, mob.getPos(), 16,
-                e -> !e.removed && e instanceof FloatingArtefactEntity && ((FloatingArtefactEntity)e).getStack().getItem() == UItems.CRYSTAL_HEART)
+                e -> !e.removed
+                && e instanceof FloatingArtefactEntity
+                && ((FloatingArtefactEntity)e).getStack().getItem() == UItems.CRYSTAL_HEART
+                && mob.getVisibilityCache().canSee(e)
+            )
             .stream()
             .map(e -> (FloatingArtefactEntity)e)
             .sorted(Comparator.comparing((Entity e) -> mob.distanceTo(e)))
@@ -73,7 +77,7 @@ public class BreakHeartGoal extends Goal {
         if (distance > reach && distance < 16) {
             speed = 1.23;
         } else if (distance < 225) {
-            speed = 0.6;
+            speed = 1.6;
         }
 
         mob.getNavigation().startMovingTo(target, speed);

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

@@ -141,7 +141,12 @@ public class PlayerPhysics extends EntityPhysics<Pony> implements Tickable, Moti
                 if (ticksInAir++ > (level * 100)) {
                     Bar mana = pony.getMagicalReserves().getMana();
 
-                    mana.add((float)-getHorizontalMotion(entity) * 20F / level);
+                    float cost = (float)-getHorizontalMotion(entity) * 20F / level;
+                    if (entity.isSneaking()) {
+                        cost /= 10;
+                    }
+
+                    mana.add(cost);
 
                     if (mana.getPercentFill() < 0.2) {
                         pony.getMagicalReserves().getExertion().add(2);
@@ -237,8 +242,6 @@ public class PlayerPhysics extends EntityPhysics<Pony> implements Tickable, Moti
 
             float bouncyness = EnchantmentHelper.getEquipmentLevel(UEnchantments.PADDED, player) * 6;
 
-            System.out.println(bouncyness);
-
             if (distance > 0) {
                 wallHitCooldown = 30;
 

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

@@ -10,6 +10,7 @@ import com.minelittlepony.unicopia.entity.FloatingArtefactEntity.State;
 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.VecHelper;
 
 import net.minecraft.block.BlockState;
@@ -19,7 +20,6 @@ import net.minecraft.entity.LivingEntity;
 import net.minecraft.entity.Saddleable;
 import net.minecraft.entity.SpawnGroup;
 import net.minecraft.entity.SpawnReason;
-import net.minecraft.entity.damage.DamageSource;
 import net.minecraft.entity.mob.MobEntity;
 import net.minecraft.entity.passive.TameableEntity;
 import net.minecraft.entity.player.PlayerEntity;
@@ -59,7 +59,7 @@ public class CrystalHeartItem extends Item implements FloatingArtefactEntity.Art
 
         if (world instanceof ServerWorld) {
 
-            FloatingArtefactEntity entity = UEntities.FLOATING_ARTEFACT.create((ServerWorld)world, context.getStack().getTag(), null, context.getPlayer(), blockPos, SpawnReason.SPAWN_EGG, true, true);
+            FloatingArtefactEntity entity = UEntities.FLOATING_ARTEFACT.create((ServerWorld)world, context.getStack().getTag(), null, context.getPlayer(), blockPos, SpawnReason.SPAWN_EGG, false, true);
 
             if (entity == null) {
                 return ActionResult.FAIL;
@@ -137,13 +137,14 @@ public class CrystalHeartItem extends Item implements FloatingArtefactEntity.Art
                 }
 
                 inputs.forEach(input -> {
-                    input.damage(DamageSource.MAGIC, takes);
+                    input.damage(MagicalDamageSource.create("feed"), takes);
                     ParticleUtils.spawnParticles(new FollowingParticleEffect(UParticles.HEALTH_DRAIN, entity, 0.2F), input, 1);
                 });
                 outputs.forEach(output -> {
                     ParticleUtils.spawnParticles(new FollowingParticleEffect(UParticles.HEALTH_DRAIN, output, 0.2F), entity, 1);
                     output.heal(gives);
                 });
+                entity.addSpin((int)gives);
             }
         }