Carving & undercarriage

src/main/java/com/volmit/iris/object/IrisCarveLayer.java

@@ -34,6 +34,12 @@ public class IrisCarveLayer
 	@Desc("The max height")
 	private int maxHeight = 220;
 
+	@MinNumber(0.0)
+	@MaxNumber(1.0)
+	@DontObfuscate
+	@Desc("The full percentage means the 4D opacity of this carver will decay from 100% to 0% at the min & max vertical ranges. Setting the percent to 1.0 will make a very drastic & charp change at the edge of the vertical min & max. Where as 0.15 means only 15% of the vertical range will actually be 100% opacity.")
+	private double fullPercent = 0.5;
+
 	@MaxNumber(512)
 	@MinNumber(-128)
 	@DontObfuscate
@@ -55,7 +61,19 @@ public class IrisCarveLayer
 			return false;
 		}
 
-		double opacity = Math.pow(IrisInterpolation.sinCenter(M.lerpInverse(getMinHeight(), getMaxHeight(), y)), 4);
+		double innerRange = fullPercent * (maxHeight - minHeight);
+		double opacity = 1D;
+
+		if(y <= minHeight+innerRange)
+		{
+			opacity = IrisInterpolation.bezier(M.lerpInverse(getMinHeight(), minHeight+innerRange, y));
+		}
+
+		else if(y >=maxHeight - innerRange)
+		{
+			opacity = IrisInterpolation.bezier(1D - M.lerpInverse(maxHeight-innerRange, getMaxHeight(), y));
+		}
+
 		return cng.aquire(() -> getStyle().create(rng.nextParallelRNG(-2340 * getMaxHeight() * getMinHeight()))).fitDouble(0D, 1D, x, y, z) * opacity > getThreshold();
 	}
 }

src/main/java/com/volmit/iris/object/IrisDimension.java

@@ -1,5 +1,6 @@
 package com.volmit.iris.object;
 
+import net.royawesome.jlibnoise.Noise;
 import org.bukkit.Material;
 import org.bukkit.World.Environment;
 import org.bukkit.block.data.BlockData;
@@ -62,6 +63,10 @@ public class IrisDimension extends IrisRegistrant
 	@Desc("Improves the biome grid variation by shuffling the cell grid more depending on the seed. This makes biomes across multiple seeds look far different than before.")
 	private boolean aggressiveBiomeReshuffle = false;
 
+	@DontObfuscate
+	@Desc("Instead of a flat bottom, applies a clamp (using this noise style) to the bottom instead of a flat bottom. Useful for carving out center-dimensions in a dimension composite world.")
+	private IrisShapedGeneratorStyle undercarriage = null;
+
 	@DontObfuscate
 	@Desc("Upon joining this world, Iris will send a resource pack request to the client. If they have previously selected yes, it will auto-switch depending on which dimension they go to.")
 	private String resourcePack = "";
@@ -367,6 +372,22 @@ public class IrisDimension extends IrisRegistrant
 		return rad.aquire(() -> Math.toRadians(dimensionAngleDeg));
 	}
 
+	public boolean isCarved(int x, int y, int z, RNG rng, int terrainHeight)
+	{
+		if(isCarving() && terrainHeight > getFluidHeight() || y < terrainHeight)
+		{
+			for(IrisCarveLayer j : getCarveLayers())
+			{
+				if(j.isCarved(rng, x, y, z))
+				{
+					return true;
+				}
+			}
+		}
+
+		return false;
+	}
+
 	public double sinRotate()
 	{
 		return sinr.aquire(() -> Math.sin(getDimensionAngle()));

src/main/java/com/volmit/iris/object/IrisShapedGeneratorStyle.java

@@ -36,7 +36,6 @@ public class IrisShapedGeneratorStyle
 	@Required
 	@MinNumber(-256)
 	@MaxNumber(256)
-
 	@DontObfuscate
 	@Desc("The max block value")
 	private int max = 0;