create and register PointSetDistributor

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

@@ -2,6 +2,9 @@ package com.dfsek.terra.addons.feature.distributor;
 
 import com.dfsek.tectonic.loading.object.ObjectTemplate;
 import com.dfsek.terra.addons.feature.distributor.config.NoiseDistributorTemplate;
+import com.dfsek.terra.addons.feature.distributor.config.PointSetDistributorTemplate;
+import com.dfsek.terra.addons.feature.distributor.util.Point;
+import com.dfsek.terra.addons.feature.distributor.util.PointTemplate;
 import com.dfsek.terra.api.TerraPlugin;
 import com.dfsek.terra.api.addon.TerraAddon;
 import com.dfsek.terra.api.addon.annotations.Addon;
@@ -33,5 +36,9 @@ public class DistributorAddon extends TerraAddon implements EventListener {
     public void packPreLoad(ConfigPackPreLoadEvent event) {
         CheckedRegistry<Supplier<ObjectTemplate<Distributor>>> distributorRegistry = event.getPack().getOrCreateRegistry(DISTRIBUTOR_TOKEN);
         distributorRegistry.register("NOISE", NoiseDistributorTemplate::new);
+        distributorRegistry.register("POINTS", PointSetDistributorTemplate::new);
+
+        event.getPack()
+                .applyLoader(Point.class, PointTemplate::new);
     }
 }

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

@@ -0,0 +1,19 @@
+package com.dfsek.terra.addons.feature.distributor.config;
+
+import com.dfsek.tectonic.annotations.Value;
+import com.dfsek.tectonic.loading.object.ObjectTemplate;
+import com.dfsek.terra.addons.feature.distributor.distributors.PointSetDistributor;
+import com.dfsek.terra.addons.feature.distributor.util.Point;
+import com.dfsek.terra.api.structure.feature.Distributor;
+
+import java.util.Set;
+
+public class PointSetDistributorTemplate implements ObjectTemplate<Distributor> {
+    @Value("points")
+    private Set<Point> points;
+
+    @Override
+    public Distributor get() {
+        return new PointSetDistributor(points);
+    }
+}

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

@@ -0,0 +1,19 @@
+package com.dfsek.terra.addons.feature.distributor.distributors;
+
+import com.dfsek.terra.addons.feature.distributor.util.Point;
+import com.dfsek.terra.api.structure.feature.Distributor;
+
+import java.util.Set;
+
+public class PointSetDistributor implements Distributor {
+    private final Set<Point> points;
+
+    public PointSetDistributor(Set<Point> points) {
+        this.points = points;
+    }
+
+    @Override
+    public boolean matches(int x, int z, long seed) {
+        return points.contains(new Point(x, z));
+    }
+}

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

@@ -0,0 +1,34 @@
+package com.dfsek.terra.addons.feature.distributor.util;
+
+public class Point {
+    private final int x;
+    private final int z;
+
+    private final int hash;
+
+    public Point(int x, int z) {
+        this.x = x;
+        this.z = z;
+        this.hash = 31 * x + z;
+    }
+
+    public int getX() {
+        return x;
+    }
+
+    public int getZ() {
+        return z;
+    }
+
+    @Override
+    public int hashCode() {
+        return hash;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if(!(obj instanceof Point)) return false;
+        Point that = (Point) obj;
+        return this.x == that.x && this.z == that.z;
+    }
+}

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

@@ -0,0 +1,17 @@
+package com.dfsek.terra.addons.feature.distributor.util;
+
+import com.dfsek.tectonic.annotations.Value;
+import com.dfsek.tectonic.loading.object.ObjectTemplate;
+
+public class PointTemplate implements ObjectTemplate<Point> {
+    @Value("x")
+    private int x;
+
+    @Value("z")
+    private int z;
+
+    @Override
+    public Point get() {
+        return new Point(x, z);
+    }
+}