Polish polish

- Sanding particles are of the item you are sanding
 - Sanding sounds are played slower

src/main/java/com/simibubi/create/content/curiosities/tools/SandPaperEffectsHandler.java

@@ -0,0 +1,54 @@
+package com.simibubi.create.content.curiosities.tools;
+
+import java.util.Random;
+
+import net.minecraft.core.particles.ItemParticleOption;
+import net.minecraft.core.particles.ParticleTypes;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.InteractionHand;
+import net.minecraft.world.entity.LivingEntity;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.phys.Vec3;
+
+public class SandPaperEffectsHandler {
+	public static void onUseTick(LivingEntity entity, Random random) {
+
+		spawnItemParticles(entity, random);
+
+		if (shouldPlaySound(entity))
+			entity.playSound(entity.getEatingSound(entity.getUseItem()), 0.9F + 0.2F * random.nextFloat(), random.nextFloat() * 0.2F + 0.9F);
+	}
+
+	private static boolean shouldPlaySound(LivingEntity entity) {
+		// after 6 ticks play the sound every 7th
+		return (getTicksUsed(entity) - 6) % 7 == 0;
+	}
+
+	private static int getTicksUsed(LivingEntity entity) {
+		int useDuration = entity.getUseItem()
+				.getUseDuration();
+		return useDuration - entity.getUseItemRemainingTicks();
+	}
+
+	private static void spawnItemParticles(LivingEntity entity, Random random) {
+		ItemStack sanding = entity.getItemInHand(getNonInteractionHand(entity));
+
+		Vec3 vec3 = new Vec3(((double)random.nextFloat() - 0.5D) * 0.1D, Math.random() * 0.1D + 0.1D, 0.0D);
+		vec3 = vec3.xRot(-entity.getXRot() * ((float)Math.PI / 180F));
+		vec3 = vec3.yRot(-entity.getYRot() * ((float)Math.PI / 180F));
+		double d0 = (double)(-random.nextFloat()) * 0.6D - 0.3D;
+		Vec3 vec31 = new Vec3(((double)random.nextFloat() - 0.5D) * 0.3D, d0, 0.6D);
+		vec31 = vec31.xRot(-entity.getXRot() * ((float)Math.PI / 180F));
+		vec31 = vec31.yRot(-entity.getYRot() * ((float)Math.PI / 180F));
+		vec31 = vec31.add(entity.getX(), entity.getEyeY(), entity.getZ());
+		if (entity.level instanceof ServerLevel) //Forge: Fix MC-2518 spawnParticle is nooped on server, need to use server specific variant
+			((ServerLevel)entity.level).sendParticles(new ItemParticleOption(ParticleTypes.ITEM, sanding), vec31.x, vec31.y, vec31.z, 1, vec3.x, vec3.y + 0.05D, vec3.z, 0.0D);
+		else
+			entity.level.addParticle(new ItemParticleOption(ParticleTypes.ITEM, sanding), vec31.x, vec31.y, vec31.z, vec3.x, vec3.y + 0.05D, vec3.z);
+
+	}
+
+	private static InteractionHand getNonInteractionHand(LivingEntity entity) {
+		return entity.getUsedItemHand() == InteractionHand.MAIN_HAND ? InteractionHand.OFF_HAND : InteractionHand.MAIN_HAND;
+	}
+}

src/main/java/com/simibubi/create/foundation/mixin/SandPaperSoundMixin.java

@@ -0,0 +1,51 @@
+package com.simibubi.create.foundation.mixin;
+
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+import com.simibubi.create.content.curiosities.tools.SandPaperEffectsHandler;
+import com.simibubi.create.content.curiosities.tools.SandPaperItem;
+
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.entity.LivingEntity;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.Level;
+
+@Mixin(LivingEntity.class)
+public abstract class SandPaperSoundMixin extends Entity {
+
+	@Shadow
+	public abstract ItemStack getUseItem();
+
+	private SandPaperSoundMixin(EntityType<?> pEntityType, Level pLevel) {
+		super(pEntityType, pLevel);
+	}
+
+	@Inject(method = "triggerItemUseEffects", cancellable = true,
+			at = @At(value = "INVOKE", target = "Lnet/minecraft/world/item/ItemStack;getUseAnimation()Lnet/minecraft/world/item/UseAnim;", ordinal = 0))
+	private void onTriggerUseEffects(ItemStack pStack, int pCount, CallbackInfo ci) {
+		LivingEntity self = (LivingEntity) (Object) this;
+
+		Item item = pStack.getItem();
+		if (item instanceof SandPaperItem) {
+			SandPaperEffectsHandler.onUseTick(self, this.random);
+			ci.cancel();
+		}
+	}
+
+	// Trigger every tick for sandpaper, so that we have more fine grain control over the animation
+	@Inject(method = "shouldTriggerItemUseEffects", cancellable = true, at = @At("HEAD"))
+	private void alwaysTriggerUseEffects(CallbackInfoReturnable<Boolean> cir) {
+		ItemStack using = this.getUseItem();
+		Item item = using.getItem();
+		if (item instanceof SandPaperItem) {
+			cir.setReturnValue(true);
+		}
+	}
+}

src/main/resources/create.mixins.json

@@ -5,7 +5,8 @@
   "compatibilityLevel": "JAVA_16",
   "refmap": "create.refmap.json",
   "mixins": [
-    "PlayerListMixin"
+    "PlayerListMixin",
+    "SandPaperSoundMixin"
   ],
   "client": [
     "BreakProgressMixin",