add XOR distributor

common/addons/config-distributors/src/main/java/com/dfsek/terra/addons/feature/distributor/DistributorAddon.java

@@ -17,6 +17,7 @@ import com.dfsek.terra.addons.feature.distributor.config.PaddedGridDistributorTe
 import com.dfsek.terra.addons.feature.distributor.config.SamplerDistributorTemplate;
 import com.dfsek.terra.addons.feature.distributor.config.OrDistributorTemplate;
 import com.dfsek.terra.addons.feature.distributor.config.PointSetDistributorTemplate;
+import com.dfsek.terra.addons.feature.distributor.config.XorDistributorTemplate;
 import com.dfsek.terra.addons.feature.distributor.config.YesDistributorTemplate;
 import com.dfsek.terra.addons.feature.distributor.util.Point;
 import com.dfsek.terra.addons.feature.distributor.util.PointTemplate;
@@ -46,13 +47,16 @@ public class DistributorAddon implements AddonInitializer {
                 .getHandler(FunctionalEventHandler.class)
                 .register(addon, ConfigPackPreLoadEvent.class)
                 .then(event -> {
-                    CheckedRegistry<Supplier<ObjectTemplate<Distributor>>> distributorRegistry = event.getPack().getOrCreateRegistry(
+                    CheckedRegistry<Supplier<ObjectTemplate<Distributor>>> distributorRegistry = event
-                            DISTRIBUTOR_TOKEN);
+                            .getPack()
+                            .getOrCreateRegistry(DISTRIBUTOR_TOKEN);
+                    
                     distributorRegistry.register(addon.key("SAMPLER"), SamplerDistributorTemplate::new);
                     distributorRegistry.register(addon.key("POINTS"), PointSetDistributorTemplate::new);
                     distributorRegistry.register(addon.key("PADDED_GRID"), PaddedGridDistributorTemplate::new);
                     distributorRegistry.register(addon.key("AND"), AndDistributorTemplate::new);
                     distributorRegistry.register(addon.key("OR"), OrDistributorTemplate::new);
+                    distributorRegistry.register(addon.key("XOR"), XorDistributorTemplate::new);
                     distributorRegistry.register(addon.key("YES"), YesDistributorTemplate::new);
                     distributorRegistry.register(addon.key("NO"), NoDistributorTemplate::new);
             

common/addons/config-distributors/src/main/java/com/dfsek/terra/addons/feature/distributor/config/XorDistributorTemplate.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2020-2021 Polyhedral Development
+ *
+ * The Terra Core Addons are licensed under the terms of the MIT License. For more details,
+ * reference the LICENSE file in this module's root directory.
+ */
+
+package com.dfsek.terra.addons.feature.distributor.config;
+
+import com.dfsek.tectonic.api.config.template.ValidatedConfigTemplate;
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+import com.dfsek.tectonic.api.exception.ValidationException;
+
+import com.dfsek.terra.api.config.meta.Meta;
+import com.dfsek.terra.api.structure.feature.Distributor;
+
+import java.util.List;
+
+
+public class XorDistributorTemplate implements ObjectTemplate<Distributor>, ValidatedConfigTemplate {
+    @Value("distributors")
+    private @Meta List<@Meta Distributor> distributors;
+    
+    
+    @Override
+    public Distributor get() {
+        Distributor current = distributors.remove(0);
+        while(!distributors.isEmpty()) {
+            current = current.xor(distributors.remove(0));
+        }
+        return current;
+    }
+    
+    @Override
+    public boolean validate() throws ValidationException {
+        if(distributors.isEmpty()) throw new ValidationException("XOR Distributor must specify at least 1 distributor.");
+        return true;
+    }
+}