Back Flora configs with registry.

src/main/java/com/dfsek/terra/registry/TerraRegistry.java

@@ -0,0 +1,41 @@
+package com.dfsek.terra.registry;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public abstract class TerraRegistry<T> {
+    private final Map<String, T> objects = new HashMap<>();
+
+    /**
+     * Add an object to the registry with a name.
+     *
+     * @param name  Name of the tree.
+     * @param value Object to add
+     * @return True if tree was overwritten.
+     */
+    public boolean add(String name, T value) {
+        boolean exists = objects.containsKey(name);
+        objects.put(name, value);
+        return exists;
+    }
+
+    /**
+     * Check if the registry contains an object.
+     *
+     * @param name Name of the object.
+     * @return Whether the registry contains the object.
+     */
+    public boolean contains(String name) {
+        return objects.containsKey(name);
+    }
+
+    /**
+     * Get an object from the registry,
+     *
+     * @param id ID of object to get
+     * @return Object
+     */
+    public T get(String id) {
+        return objects.get(id);
+    }
+}