[Chore] Replace enum with code generator for fluids (#27)

* Move Fluids to CodeGenerator

* [Chore] Replace enum with registry

* Refactor: Move 'Fluids' interface from FluidImpl implements to Fluid extends

---------

Co-authored-by: OneLiteFeather <seelenretterin@onelitefeather.net>

Author: TheMeinerLP

src/autogenerated/java/net/minestom/server/fluid/Fluids.java

@@ -0,0 +1,17 @@
+package net.minestom.server.fluid;
+
+/**
+ * Code autogenerated, do not edit!
+ */
+@SuppressWarnings("unused")
+interface Fluids {
+    Fluid EMPTY = FluidImpl.get("minecraft:empty");
+
+    Fluid FLOWING_WATER = FluidImpl.get("minecraft:flowing_water");
+
+    Fluid WATER = FluidImpl.get("minecraft:water");
+
+    Fluid FLOWING_LAVA = FluidImpl.get("minecraft:flowing_lava");
+
+    Fluid LAVA = FluidImpl.get("minecraft:lava");
+}

src/main/java/net/minestom/server/fluid/Fluid.java

@@ -0,0 +1,37 @@
+package net.minestom.server.fluid;
+
+import net.minestom.server.registry.Registry;
+import net.minestom.server.registry.StaticProtocolObject;
+import net.minestom.server.utils.NamespaceID;
+import org.jetbrains.annotations.Contract;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Collection;
+
+public sealed interface Fluid extends StaticProtocolObject, Fluids permits FluidImpl {
+    /**
+     * Returns the entity registry.
+     *
+     * @return the entity registry or null if it was created with a builder
+     */
+    @Contract(pure = true)
+    @Nullable
+    Registry.FluidEntry registry();
+
+    @Override
+    @NotNull
+    NamespaceID namespace();
+
+    static @NotNull Collection<@NotNull Fluid> values() {
+        return FluidImpl.values();
+    }
+
+    static @Nullable Fluid fromNamespaceId(@NotNull String namespaceID) {
+        return FluidImpl.getSafe(namespaceID);
+    }
+
+    static @Nullable Fluid fromNamespaceId(@NotNull NamespaceID namespaceID) {
+        return fromNamespaceId(namespaceID.asString());
+    }
+}

src/main/java/net/minestom/server/fluid/FluidImpl.java

@@ -0,0 +1,34 @@
+package net.minestom.server.fluid;
+
+import net.minestom.server.registry.Registry;
+import net.minestom.server.utils.NamespaceID;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Collection;
+import java.util.concurrent.atomic.AtomicInteger;
+
+public record FluidImpl(Registry.FluidEntry registry, NamespaceID namespace, int id) implements Fluid {
+
+    private static final Registry.DynamicContainer<Fluid> CONTAINER = Registry.createDynamicContainer(Registry.Resource.FLUIDS, FluidImpl::createImpl);
+    private static final AtomicInteger INDEX = new AtomicInteger();
+
+    private static FluidImpl createImpl(String namespace, Registry.Properties properties) {
+        return new FluidImpl(Registry.fluidEntry(namespace, properties));
+    }
+
+    private FluidImpl(Registry.FluidEntry registry) {
+        this(registry, registry.namespace(), INDEX.getAndIncrement());
+    }
+
+    static Collection<Fluid> values() {
+        return CONTAINER.values();
+    }
+
+    public static Fluid get(@NotNull String namespace) {
+        return CONTAINER.get(namespace);
+    }
+
+    static Fluid getSafe(@NotNull String namespace) {
+        return CONTAINER.getSafe(namespace);
+    }
+}