create Linked annotation and link TerraBiome and BiomeBuilder

common/addons/config-biome/src/main/java/com/dfsek/terra/addons/biome/UserDefinedBiome.java

@@ -20,15 +20,16 @@ public class UserDefinedBiome implements TerraBiome {
     private final int color;
     private final Set<String> tags;
 
-    private final Context context = new Context();
+    private final Context context;
 
-    public UserDefinedBiome(ProbabilityCollection<Biome> vanilla, UserDefinedGenerator gen, BiomeTemplate config) {
+    public UserDefinedBiome(ProbabilityCollection<Biome> vanilla, UserDefinedGenerator gen, BiomeTemplate config, Context context) {
         this.vanilla = vanilla;
         this.gen = gen;
         this.id = config.getID();
         this.config = config;
         this.color = config.getColor();
         this.tags = config.getTags();
+        this.context = context;
         tags.add("BIOME:" + id);
     }
 

common/addons/config-biome/src/main/java/com/dfsek/terra/addons/biome/UserDefinedBiomeBuilder.java

@@ -1,6 +1,6 @@
 package com.dfsek.terra.addons.biome;
 
-import com.dfsek.terra.api.config.ConfigPack;
+import com.dfsek.terra.api.properties.Context;
 import com.dfsek.terra.api.util.collection.ProbabilityCollection;
 import com.dfsek.terra.api.util.seeded.BiomeBuilder;
 import com.dfsek.terra.api.world.biome.Biome;
@@ -10,6 +10,7 @@ import java.util.concurrent.ConcurrentHashMap;
 
 public class UserDefinedBiomeBuilder implements BiomeBuilder {
     private final BiomeTemplate template;
+    private final Context context = new Context();
 
     private final Map<Long, UserDefinedBiome> biomeMap = new ConcurrentHashMap<>();
 
@@ -24,7 +25,7 @@ public class UserDefinedBiomeBuilder implements BiomeBuilder {
                     s -> {
                         UserDefinedGenerator generator = new UserDefinedGenerator(template.getNoiseEquation().apply(seed), template.getElevationEquation().apply(seed), template.getCarvingEquation().apply(seed), template.getBiomeNoise().apply(seed), template.getElevationWeight(),
                                 template.getBlendDistance(), template.getBlendStep(), template.getBlendWeight());
-                        return new UserDefinedBiome(template.getVanilla(), generator, template);
+                        return new UserDefinedBiome(template.getVanilla(), generator, template, context);
                     }
             );
         }
@@ -34,4 +35,9 @@ public class UserDefinedBiomeBuilder implements BiomeBuilder {
     public ProbabilityCollection<Biome> getVanillaBiomes() {
         return template.getVanilla();
     }
+
+    @Override
+    public Context getContext() {
+        return context;
+    }
 }

common/api/src/main/java/com/dfsek/terra/api/properties/annotations/Linked.java

@@ -0,0 +1,18 @@
+package com.dfsek.terra.api.properties.annotations;
+
+import com.dfsek.terra.api.properties.PropertyHolder;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Specifies that this property holder shares properties
+ * with the {@link #value()} holder.
+ */
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.CLASS)
+public @interface Linked {
+    Class<? extends PropertyHolder> value();
+}

common/api/src/main/java/com/dfsek/terra/api/util/seeded/BiomeBuilder.java

@@ -1,9 +1,12 @@
 package com.dfsek.terra.api.util.seeded;
 
+import com.dfsek.terra.api.properties.PropertyHolder;
+import com.dfsek.terra.api.properties.annotations.Linked;
 import com.dfsek.terra.api.util.collection.ProbabilityCollection;
 import com.dfsek.terra.api.world.biome.Biome;
 import com.dfsek.terra.api.world.biome.TerraBiome;
 
-public interface BiomeBuilder extends SeededBuilder<TerraBiome> {
+@Linked(TerraBiome.class)
+public interface BiomeBuilder extends SeededBuilder<TerraBiome>, PropertyHolder {
     ProbabilityCollection<Biome> getVanillaBiomes();
 }

common/api/src/main/java/com/dfsek/terra/api/world/biome/TerraBiome.java

@@ -2,7 +2,9 @@ package com.dfsek.terra.api.world.biome;
 
 
 import com.dfsek.terra.api.properties.PropertyHolder;
+import com.dfsek.terra.api.properties.annotations.Linked;
 import com.dfsek.terra.api.util.collection.ProbabilityCollection;
+import com.dfsek.terra.api.util.seeded.BiomeBuilder;
 import com.dfsek.terra.api.world.World;
 
 import java.util.Set;
@@ -10,6 +12,7 @@ import java.util.Set;
 /**
  * Represents a custom biome
  */
+@Linked(BiomeBuilder.class)
 public interface TerraBiome extends PropertyHolder {
 
     /**