Make caves not suck anymore

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

@@ -21,6 +21,9 @@ public class UserDefinedCarver extends Carver {
     private final int hash;
     private final int topCut;
     private final int bottomCut;
+    private double step = 2;
+    private Range recalc = new Range(8, 10);
+    private double recalcMagnitude = 3;
 
     public UserDefinedCarver(Range height, Range radius, Range length, double[] start, double[] mutate, double[] radiusMultiplier, int hash, int topCut, int bottomCut) {
         super(height.getMin(), height.getMax());
@@ -40,6 +43,18 @@ public class UserDefinedCarver extends Carver {
         return new UserDefinedWorm(length.get(r) / 2, r, vector, radius.getMax(), topCut, bottomCut);
     }
 
+    public void setStep(double step) {
+        this.step = step;
+    }
+
+    public void setRecalc(Range recalc) {
+        this.recalc = recalc;
+    }
+
+    public void setRecalcMagnitude(double recalcMagnitude) {
+        this.recalcMagnitude = recalcMagnitude;
+    }
+
     @Override
     public boolean isChunkCarved(World w, int chunkX, int chunkZ, Random random) {
         ConfigPack c = TerraWorld.getWorld(w).getConfig();
@@ -50,6 +65,9 @@ public class UserDefinedCarver extends Carver {
         private final Vector direction;
         private final int maxRad;
         private double runningRadius;
+        private int steps;
+        private int nextDirection = 0;
+        private double[] currentRotation = new double[3];
 
         public UserDefinedWorm(int length, Random r, Vector origin, int maxRad, int topCut, int bottomCut) {
             super(length, r, origin);
@@ -57,17 +75,27 @@ public class UserDefinedCarver extends Carver {
             super.setBottomCut(bottomCut);
             runningRadius = radius.get(r);
             this.maxRad = maxRad;
-            direction = new Vector((r.nextDouble() - 0.5D) * start[0], (r.nextDouble() - 0.5D) * start[1], (r.nextDouble() - 0.5D) * start[2]).normalize().multiply(2);
+            direction = new Vector((r.nextDouble() - 0.5D) * start[0], (r.nextDouble() - 0.5D) * start[1], (r.nextDouble() - 0.5D) * start[2]).normalize().multiply(step);
         }
 
         @Override
         public void step() {
+            if(steps == nextDirection) {
+                direction.rotateAroundX(Math.toRadians((getRandom().nextGaussian()) * mutate[0] * recalcMagnitude));
+                direction.rotateAroundY(Math.toRadians((getRandom().nextGaussian()) * mutate[1] * recalcMagnitude));
+                direction.rotateAroundZ(Math.toRadians((getRandom().nextGaussian()) * mutate[2] * recalcMagnitude));
+                currentRotation = new double[] {(getRandom().nextGaussian()) * mutate[0],
+                        (getRandom().nextGaussian()) * mutate[1],
+                        (getRandom().nextGaussian()) * mutate[2]};
+                nextDirection += recalc.get(getRandom());
+            }
+            steps++;
             setRadius(new int[] {(int) (runningRadius * radiusMultiplier[0]), (int) (runningRadius * radiusMultiplier[1]), (int) (runningRadius * radiusMultiplier[2])});
             runningRadius += (getRandom().nextDouble() - 0.5) * mutate[3];
             runningRadius = Math.max(Math.min(runningRadius, maxRad), 1);
-            direction.rotateAroundX(Math.toRadians(getRandom().nextDouble() * mutate[0] * 2));
+            direction.rotateAroundX(Math.toRadians(currentRotation[0] * mutate[0]));
-            direction.rotateAroundY(Math.toRadians(getRandom().nextDouble() * mutate[1] * 2));
+            direction.rotateAroundY(Math.toRadians(currentRotation[1] * mutate[1]));
-            direction.rotateAroundZ(Math.toRadians(getRandom().nextDouble() * mutate[2] * 2));
+            direction.rotateAroundZ(Math.toRadians(currentRotation[2] * mutate[2]));
             getRunning().add(direction);
         }
     }

src/main/java/com/dfsek/terra/config/genconfig/CarverConfig.java

@@ -41,6 +41,7 @@ public class CarverConfig extends TerraConfig {
     private final boolean replaceIsBlacklistTop;
     private final boolean replaceIsBlacklistBottom;
     private final boolean updateOcean;
+    private final Range recalc;
 
     @SuppressWarnings("unchecked")
     public CarverConfig(File file, ConfigPack config) throws IOException, InvalidConfigurationException {
@@ -69,6 +70,9 @@ public class CarverConfig extends TerraConfig {
 
         updateOcean = getBoolean("update-liquids", false);
 
+        double step = getDouble("step", 2);
+        recalc = new Range(getInt("recalculate-direction.min", 8), getInt("recalculate-direction.max", 12));
+        double rm = getDouble("recalculate-magnitude", 4);
         shift = new HashMap<>();
         for(Map.Entry<String, Object> e : Objects.requireNonNull(getConfigurationSection("shift")).getValues(false).entrySet()) {
             Set<Material> l = new HashSet<>();
@@ -93,6 +97,9 @@ public class CarverConfig extends TerraConfig {
         Range height = new Range(getInt("start.height.min"), getInt("start.height.max"));
 
         carver = new UserDefinedCarver(height, radius, length, start, mutate, radiusMultiplier, id.hashCode(), getInt("cut.top", 0), getInt("cut.bottom", 0));
+        carver.setStep(step);
+        carver.setRecalc(recalc);
+        carver.setRecalcMagnitude(rm);
     }
 
     @SuppressWarnings("unchecked")

src/main/resources/default-config/carving/cave.yml

@@ -1,7 +1,8 @@
 id: CAVE
+step: 2
 length:
-  min: 20
+  min: 40
-  max: 100
+  max: 80
 start:
   x: 1
   y: 0.25
@@ -11,18 +12,18 @@ start:
       x: 1
       y: 1
       z: 1
-    min: 2
+    min: 3
     max: 4
   height:
     min: 4
     max: 72
 cut:
   top: 0
-  bottom: 1
+  bottom: 2
 mutate:
-  x: 2
+  x: 1
-  y: 6
+  y: 3
-  z: 2
+  z: 1
   radius: 0.125
 palette:
   inner:

src/main/resources/default-config/carving/cave_ocean.yml

@@ -1,7 +1,7 @@
 id: "CAVE_OCEAN"
 length:
-  min: 20
+  min: 40
-  max: 100
+  max: 80
 start:
   x: 1
   y: 0.25
@@ -20,9 +20,9 @@ cut:
   top: 0
   bottom: 0
 mutate:
-  x: 2
+  x: 1
-  y: 6
+  y: 3
-  z: 2
+  z: 1
   radius: 0.125
 palette:
   inner:

src/main/resources/default-config/carving/cave_swamp.yml

@@ -1,7 +1,7 @@
 id: "CAVE_SWAMP"
 length:
-  min: 20
+  min: 40
-  max: 100
+  max: 80
 start:
   x: 1
   y: 0.25
@@ -20,9 +20,9 @@ cut:
   top: 0
   bottom: 0
 mutate:
-  x: 2
+  x: 1
-  y: 6
+  y: 3
-  z: 2
+  z: 1
   radius: 0.125
 palette:
   inner:

src/main/resources/default-config/carving/cave_tundra.yml

@@ -1,7 +1,7 @@
 id: "CAVE_TUNDRA"
 length:
-  min: 20
+  min: 40
-  max: 100
+  max: 80
 start:
   x: 1
   y: 0.25
@@ -20,9 +20,9 @@ cut:
   top: 0
   bottom: 0
 mutate:
-  x: 2
+  x: 1
-  y: 6
+  y: 3
-  z: 2
+  z: 1
   radius: 0.125
 palette:
   inner:

src/main/resources/default-config/carving/ravine.yml

@@ -9,7 +9,7 @@ start:
   radius:
     multiply:
       x: 1
-      y: 4
+      y: 6
       z: 1
     min: 3
     max: 4
@@ -17,11 +17,11 @@ start:
     min: 12
     max: 56
 cut:
-  top: 1
+  top: 6
-  bottom: 2
+  bottom: 4
 mutate:
   x: 1
-  y: 4
+  y: 2
   z: 1
   radius: 0.125
 palette: