Performance improvements

src/main/java/com/dfsek/terra/carving/Cavern.java

@@ -0,0 +1,50 @@
+package com.dfsek.terra.carving;
+
+import com.dfsek.terra.procgen.GridSpawn;
+import com.dfsek.terra.procgen.voxel.DeformedSphere;
+import com.dfsek.terra.procgen.voxel.Tube;
+import com.dfsek.terra.procgen.voxel.VoxelGeometry;
+import org.bukkit.Bukkit;
+import org.bukkit.World;
+import org.bukkit.util.Vector;
+import org.polydev.gaea.math.FastNoise;
+import org.polydev.gaea.math.MathUtil;
+import org.polydev.gaea.world.carving.CarvingData;
+
+import java.util.Random;
+
+public class Cavern {
+    private final Node node;
+    private final long seed;
+    public Cavern(World w) {
+        this.node = new Node(w);
+        this.seed = w.getSeed();
+    }
+    public VoxelGeometry carveChunk(int chunkX, int chunkZ) {
+        long seedC = MathUtil.getCarverChunkSeed(chunkX, chunkZ, seed);
+        Random chunk = new Random(seedC);
+        Vector org = node.getNodeLocation((chunkX << 4)+8, (chunkZ << 4)+8).clone().setY(chunk.nextInt(128));
+        VoxelGeometry carve = VoxelGeometry.getBlank();
+
+        FastNoise smpl = new FastNoise((int) seedC);
+        smpl.setFrequency(0.01f);
+        smpl.setNoiseType(FastNoise.NoiseType.Simplex);
+        Bukkit.getLogger().info("Cavern: " + org.toString());
+        carve.merge(new DeformedSphere(org.clone(), chunk.nextInt(4)+3, 0.75, smpl));
+
+        Vector _00 = new Vector(org.getX()+16, new Random(MathUtil.getCarverChunkSeed(chunkX+1, chunkZ, seed)).nextInt(128), org.getZ());
+
+        carve.merge(new Tube(org, _00, 4));
+        return carve;
+    }
+    public static class Node {
+        private final long seed;
+        private final GridSpawn spawn = new GridSpawn(16, 0);
+        public Node(World w) {
+            this.seed = w.getSeed();
+        }
+        public Vector getNodeLocation(int x, int z) {
+            return spawn.getNearestSpawn(x, z, seed);
+        }
+    }
+}