Define standard FluidConstants

src/main/java/net/neoforged/neoforge/fluids/FluidConstants.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) NeoForged and contributors
+ * SPDX-License-Identifier: LGPL-2.1-only
+ */
+
+package net.neoforged.neoforge.fluids;
+
+/**
+ * Defines fluid amount constants for common resources.
+ * All amounts are given in millibuckets (mb), the standard fluid unit used by NeoForge.
+ */
+public final class FluidConstants {
+    /**
+     * One bucket is by definition 1000 millibuckets.
+     */
+    public static final int BUCKET = 1000;
+    /**
+     * A molten block, if the block can be divided into 4 parts.
+     *
+     * @see #GEM_4
+     */
+    public static final int BLOCK_4 = 1000;
+    /**
+     * A molten block, if the block can be divided into 9 parts.
+     *
+     * @see #GEM_9
+     * @see #INGOT
+     * @see #NUGGET
+     */
+    public static final int BLOCK_9 = 810;
+    /**
+     * A molten gem, if the gem is equivalent to 1/4th of a block of some resource.
+     *
+     * @see #BLOCK_4 for the corresponding block
+     */
+    public static final int GEM_4 = 250;
+    /**
+     * A molten gem, if the gem is equivalent to 1/9th of a block of some resource.
+     *
+     * @see #BLOCK_9 for the corresponding block
+     */
+    public static final int GEM_9 = 90;
+    /**
+     * A molten ingot, i.e. 1/9th of a block of some resource that can be divided into 9 parts.
+     *
+     * @see #BLOCK_9 for the corresponding block
+     */
+    public static final int INGOT = 90;
+    /**
+     * A molten nugget, i.e. 1/81th of a block of some resource that can be divided into 81 parts.
+     *
+     * @see #BLOCK_9 for the corresponding block
+     */
+    public static final int NUGGET = 10;
+
+    private FluidConstants() {}
+}

src/main/java/net/neoforged/neoforge/fluids/FluidType.java

@@ -65,8 +65,11 @@
 public class FluidType {
     /**
      * The number of fluid units that a bucket represents.
+     *
+     * @deprecated Use {@link FluidConstants#BUCKET} instead.
      */
-    public static final int BUCKET_VOLUME = 1000;
+    @Deprecated(forRemoval = true)
+    public static final int BUCKET_VOLUME = FluidConstants.BUCKET;
 
     /**
      * A lazy value which computes the number of fluid types within the