Sounds in the right places and no stacking

src/main/java/com/simibubi/create/AllItems.java

@@ -232,6 +232,7 @@ public class AllItems {
 
 	public static final ItemEntry<PotatoCannonItem> POTATO_CANNON =
 		REGISTRATE.item("potato_cannon", PotatoCannonItem::new)
+			.properties(p -> p.maxStackSize(1))
 			.transform(CreateRegistrate.customRenderedItem(() -> PotatoCannonModel::new))
 			.model(AssetLookup.itemModelWithPartials())
 			.register();

src/main/java/com/simibubi/create/AllSoundEvents.java

@@ -25,6 +25,7 @@ import net.minecraft.util.SoundCategory;
 import net.minecraft.util.SoundEvent;
 import net.minecraft.util.SoundEvents;
 import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.world.World;
 import net.minecraftforge.event.RegistryEvent;
 import net.minecraftforge.registries.IForgeRegistry;
@@ -231,7 +232,7 @@ public class AllSoundEvents {
 //			return;
 //		if (soundLocation.getPath().contains("_compounded_")
 //			event.setResultSound();
-//		
+//
 //	}
 
 	private static class SoundEntryProvider implements IDataProvider {
@@ -377,10 +378,18 @@ public class AllSoundEvents {
 			play(world, entity, pos.getX(), pos.getY(), pos.getZ(), volume, pitch);
 		}
 
-		abstract void play(World world, PlayerEntity entity, double x, double y, double z, float volume, float pitch);
+		public void play(World world, PlayerEntity entity, Vector3d pos, float volume, float pitch) {
+			play(world, entity, pos.getX(), pos.getY(), pos.getZ(), volume, pitch);
+		}
+
+		public abstract void play(World world, PlayerEntity entity, double x, double y, double z, float volume, float pitch);
 
 		public void playAt(World world, BlockPos pos, float volume, float pitch, boolean fade) {
-			playAt(world, pos.getX() + .5f, pos.getY() + .5f, pos.getZ() + .5f, volume, pitch, fade);
+			playAt(world, pos.getX() + .5, pos.getY() + .5, pos.getZ() + .5, volume, pitch, fade);
+		}
+
+		public void playAt(World world, Vector3d pos, float volume, float pitch, boolean fade) {
+			playAt(world, pos.getX(), pos.getY(), pos.getZ(), volume, pitch, fade);
 		}
 
 		public abstract void playAt(World world, double x, double y, double z, float volume, float pitch, boolean fade);
@@ -445,7 +454,7 @@ public class AllSoundEvents {
 		}
 
 		@Override
-		void play(World world, PlayerEntity entity, double x, double y, double z, float volume, float pitch) {
+		public void play(World world, PlayerEntity entity, double x, double y, double z, float volume, float pitch) {
 			for (Pair<SoundEvent, Couple<Float>> pair : compiledEvents) {
 				Couple<Float> volPitch = pair.getSecond();
 				world.playSound(entity, x, y, z, pair.getFirst(), category, volPitch.getFirst() * volume,
@@ -498,7 +507,7 @@ public class AllSoundEvents {
 		}
 
 		@Override
-		void play(World world, PlayerEntity entity, double x, double y, double z, float volume, float pitch) {
+		public void play(World world, PlayerEntity entity, double x, double y, double z, float volume, float pitch) {
 			world.playSound(entity, x, y, z, event, category, volume, pitch);
 		}
 

src/main/java/com/simibubi/create/content/curiosities/weapons/PotatoCannonRenderHandler.java

@@ -22,7 +22,7 @@ public class PotatoCannonRenderHandler extends ShootableGadgetRenderHandler {
 	private float nextPitch;
 
 	@Override
-	protected void playSound(Hand hand, BlockPos position) {
+	protected void playSound(Hand hand, Vector3d position) {
 		PotatoProjectileEntity.playLaunchSound(Minecraft.getInstance().world, position, nextPitch);
 	}
 

src/main/java/com/simibubi/create/content/curiosities/weapons/PotatoProjectileEntity.java

@@ -167,7 +167,7 @@ public class PotatoProjectileEntity extends DamagingProjectileEntity implements
 		AllSoundEvents.POTATO_HIT.playOnServer(world, new BlockPos(location));
 	}
 
-	public static void playLaunchSound(World world, BlockPos location, float pitch) {
+	public static void playLaunchSound(World world, Vector3d location, float pitch) {
 		AllSoundEvents.FWOOMP.playAt(world, location, 1, pitch, true);
 	}
 

src/main/java/com/simibubi/create/content/curiosities/weapons/PotatoProjectileRenderMode.java

@@ -5,6 +5,7 @@ import com.simibubi.create.foundation.utility.AngleHelper;
 import com.simibubi.create.foundation.utility.MatrixStacker;
 
 import net.minecraft.client.Minecraft;
+import net.minecraft.entity.Entity;
 import net.minecraft.util.math.MathHelper;
 import net.minecraft.util.math.vector.Vector3d;
 import net.minecraftforge.api.distmarker.Dist;
@@ -41,8 +42,8 @@ public abstract class PotatoProjectileRenderMode {
 		public void transform(MatrixStack ms, PotatoProjectileEntity entity, float pt) {
 			super.transform(ms, entity, pt);
 			MatrixStacker.of(ms)
-				.rotateZ((entity.ticksExisted + pt) * 2 * (entity.getEntityId() % 16))
+				.rotateZ((entity.ticksExisted + pt) * 2 * entityRandom(entity, 16))
-				.rotateX((entity.ticksExisted + pt) * (entity.getEntityId() % 32));
+				.rotateX((entity.ticksExisted + pt) * entityRandom(entity, 32));
 		}
 	}
 
@@ -65,10 +66,14 @@ public abstract class PotatoProjectileRenderMode {
 				.rotateX(270
 					+ AngleHelper.deg(MathHelper.atan2(diff.y, -MathHelper.sqrt(diff.x * diff.x + diff.z * diff.z))));
 			MatrixStacker.of(ms)
-				.rotateY((entity.ticksExisted + pt) * 20 * spin)
+				.rotateY((entity.ticksExisted + pt) * 20 * spin + entityRandom(entity, 360))
 				.rotateZ(-spriteAngleOffset);
 		}
 
 	}
 
+	public static int entityRandom(Entity entity, int maxValue) {
+		return (System.identityHashCode(entity) * 31) % maxValue;
+	}
+
 }

src/main/java/com/simibubi/create/content/curiosities/zapper/ShootGadgetPacket.java

@@ -8,7 +8,6 @@ import net.minecraft.client.Minecraft;
 import net.minecraft.entity.Entity;
 import net.minecraft.network.PacketBuffer;
 import net.minecraft.util.Hand;
-import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.vector.Vector3d;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
@@ -45,13 +44,13 @@ public abstract class ShootGadgetPacket extends SimplePacketBase {
 	protected abstract void readAdditional(PacketBuffer buffer);
 
 	protected abstract void writeAdditional(PacketBuffer buffer);
-	
+
 	@OnlyIn(Dist.CLIENT)
 	protected abstract void handleAdditional();
 
 	@OnlyIn(Dist.CLIENT)
 	protected abstract ShootableGadgetRenderHandler getHandler();
-	
+
 	@Override
 	@OnlyIn(Dist.CLIENT)
 	public final void handle(Supplier<Context> context) {
@@ -64,13 +63,13 @@ public abstract class ShootGadgetPacket extends SimplePacketBase {
 				if (renderViewEntity.getPositionVec()
 					.distanceTo(location) > 100)
 					return;
-				
+
 				ShootableGadgetRenderHandler handler = getHandler();
 				handleAdditional();
 				if (self)
-					handler.shoot(hand);
+					handler.shoot(hand, location);
 				else
-					handler.playSound(hand, new BlockPos(location));
+					handler.playSound(hand, location);
 			});
 		context.get()
 			.setPacketHandled(true);

src/main/java/com/simibubi/create/content/curiosities/zapper/ShootableGadgetRenderHandler.java

@@ -13,8 +13,8 @@ import net.minecraft.client.renderer.texture.TextureManager;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.Hand;
 import net.minecraft.util.HandSide;
-import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.MathHelper;
+import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.util.math.vector.Vector3f;
 import net.minecraftforge.client.event.RenderHandEvent;
 import net.minecraftforge.eventbus.api.IEventBus;
@@ -44,7 +44,7 @@ public abstract class ShootableGadgetRenderHandler {
 		return 0.8f;
 	}
 
-	public void shoot(Hand hand) {
+	public void shoot(Hand hand, Vector3d location) {
 		ClientPlayerEntity player = Minecraft.getInstance().player;
 		boolean rightHand = hand == Hand.MAIN_HAND ^ player.getPrimaryHand() == HandSide.LEFT;
 		if (rightHand) {
@@ -54,10 +54,10 @@ public abstract class ShootableGadgetRenderHandler {
 			leftHandAnimation = .2f;
 			dontReequipLeft = false;
 		}
-		playSound(hand, player.getBlockPos());
+		playSound(hand, location);
 	}
 
-	protected abstract void playSound(Hand hand, BlockPos position);
+	protected abstract void playSound(Hand hand, Vector3d position);
 
 	protected abstract boolean appliesTo(ItemStack stack);
 

src/main/java/com/simibubi/create/content/curiosities/zapper/ZapperRenderHandler.java

@@ -14,7 +14,6 @@ import net.minecraft.client.world.ClientWorld;
 import net.minecraft.item.ItemStack;
 import net.minecraft.particles.ParticleTypes;
 import net.minecraft.util.Hand;
-import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.vector.Vector3d;
 import net.minecraft.util.math.vector.Vector3f;
 
@@ -58,7 +57,7 @@ public class ZapperRenderHandler extends ShootableGadgetRenderHandler {
 	protected void transformHand(MatrixStack ms, float flip, float equipProgress, float recoil, float pt) {}
 
 	@Override
-	protected void playSound(Hand hand, BlockPos position) {
+	protected void playSound(Hand hand, Vector3d position) {
 		float pitch = hand == Hand.MAIN_HAND ? 0.1f : 0.9f;
 		Minecraft mc = Minecraft.getInstance();
 		AllSoundEvents.WORLDSHAPER_PLACE.play(mc.world, mc.player, position, 0.1f, pitch);