diff --git a/src/minecraft/net/minecraft/src/ChunkProviderGenerate.java b/src/minecraft/net/minecraft/src/ChunkProviderGenerate.java
index c0ba376..7117c33 100644
--- a/src/minecraft/net/minecraft/src/ChunkProviderGenerate.java
+++ b/src/minecraft/net/minecraft/src/ChunkProviderGenerate.java
@@ -4,6 +4,8 @@ import org.mcmodule.math.BigInteger;
 import java.util.List;
 import java.util.Random;
 
+import static net.minecraft.src.Constants.*;
+
 public class ChunkProviderGenerate implements IChunkProvider
 {
     /** RNG. */
@@ -140,7 +142,12 @@ public class ChunkProviderGenerate implements IChunkProvider
 
                             for (int var51 = 0; var51 < 4; ++var51)
                             {
-                                if ((var47 += var49) > 0.0D)
+                            	if(!ENABLE_FRINGE_LAND) {
+                            		var47 += var49;
+                            	} else {
+                            		if(var51 == 0) var47 = var34;
+                            	}
+                                if (var47 > 0.0D)
                                 {
                                     par3ArrayOfByte[var43 += var44] = (byte)Block.stone.blockID;
                                 }
@@ -152,6 +159,9 @@ public class ChunkProviderGenerate implements IChunkProvider
                                 {
                                     par3ArrayOfByte[var43 += var44] = 0;
                                 }
+                                if(ENABLE_FRINGE_LAND) {
+                            		var47 += var49;
+                            	}
                             }
 
                             var34 += var38;
diff --git a/src/minecraft/net/minecraft/src/Constants.java b/src/minecraft/net/minecraft/src/Constants.java
index 81dc2a7..c08fb2e 100644
--- a/src/minecraft/net/minecraft/src/Constants.java
+++ b/src/minecraft/net/minecraft/src/Constants.java
@@ -1,15 +1,27 @@
 package net.minecraft.src;
 
 import java.lang.reflect.Field;
+import sun.misc.Unsafe;
 
 public class Constants {
 	public static       boolean DISABLE_MODULO = false,
-								USE_64BIT_PERLIN_GENERATOR = false;
+								USE_64BIT_PERLIN_GENERATOR = false,
+								ENABLE_FRINGE_LAND = false,
+								FLOAT_PERLIN_GENERATOR = false;
 	
 	static {
+		Unsafe unsafe;
+		try {
+			Field unsafeField = Unsafe.class.getDeclaredField("theUnsafe");
+			unsafeField.setAccessible(true);
+			unsafe = (Unsafe) unsafeField.get(null);
+		} catch (NoSuchFieldException | SecurityException | IllegalArgumentException | IllegalAccessException e) {
+			throw new RuntimeException(e);
+		}
 		Class<Constants> cls = Constants.class;
 		try {
 			for(Field f : cls.getDeclaredFields()) {
+//				unsafe.putBoolean(cls, unsafe.fieldOffset(f), Boolean.getBoolean(cls.getName() + "." + f.getName()));
 				f.setBoolean(null, Boolean.getBoolean(cls.getName() + "." + f.getName()));
 			}
 		} catch(Throwable t) {
diff --git a/src/minecraft/net/minecraft/src/NoiseGeneratorPerlin.java b/src/minecraft/net/minecraft/src/NoiseGeneratorPerlin.java
index bf7f486..845568f 100644
--- a/src/minecraft/net/minecraft/src/NoiseGeneratorPerlin.java
+++ b/src/minecraft/net/minecraft/src/NoiseGeneratorPerlin.java
@@ -2,6 +2,8 @@ package net.minecraft.src;
 
 import java.util.Random;
 
+import static net.minecraft.src.Constants.*;
+
 public class NoiseGeneratorPerlin extends NoiseGenerator
 {
     private int[] permutations;
@@ -122,7 +124,7 @@ public class NoiseGeneratorPerlin extends NoiseGenerator
                     var73 = this.lerp(var35, this.grad(this.permutations[var66 + 1], var31, 0.0D, var38 - 1.0D), this.grad(this.permutations[var22 + 1], var31 - 1.0D, 0.0D, var38 - 1.0D));
                     double var79 = this.lerp(var42, var70, var73);
                     var10001 = var75++;
-                    par1ArrayOfDouble[var10001] += (var79 * var77);
+                    par1ArrayOfDouble[var10001] += FLOAT_PERLIN_GENERATOR ? (float) (var79 * var77) : var79 * var77;
                 }
             }
         }
@@ -203,7 +205,7 @@ public class NoiseGeneratorPerlin extends NoiseGenerator
                         double var60 = this.lerp(var56, var33, var35);
                         double var62 = this.lerp(var49, var58, var60);
                         var10001 = var19++;
-                        par1ArrayOfDouble[var10001] += (var62 * var20);
+                        par1ArrayOfDouble[var10001] += FLOAT_PERLIN_GENERATOR ? (float) (var62 * var20) : var62 * var20;
                     }
                 }
             }
diff --git a/src/minecraft/net/minecraft/src/NoiseGeneratorPerlin64.java b/src/minecraft/net/minecraft/src/NoiseGeneratorPerlin64.java
index e368ea4..a55b320 100644
--- a/src/minecraft/net/minecraft/src/NoiseGeneratorPerlin64.java
+++ b/src/minecraft/net/minecraft/src/NoiseGeneratorPerlin64.java
@@ -2,6 +2,8 @@ package net.minecraft.src;
 
 import java.util.Random;
 
+import static net.minecraft.src.Constants.*;
+
 public class NoiseGeneratorPerlin64 extends NoiseGenerator
 {
     private int[] permutations;
@@ -122,7 +124,7 @@ public class NoiseGeneratorPerlin64 extends NoiseGenerator
                     var73 = this.lerp(var35, this.grad(this.permutations[var66 + 1], var31, 0.0D, var38 - 1.0D), this.grad(this.permutations[var22 + 1], var31 - 1.0D, 0.0D, var38 - 1.0D));
                     double var79 = this.lerp(var42, var70, var73);
                     var10001 = var75++;
-                    par1ArrayOfDouble[var10001] += (var79 * var77);
+                    par1ArrayOfDouble[var10001] += FLOAT_PERLIN_GENERATOR ? (float) (var79 * var77) : var79 * var77;
                 }
             }
         }
@@ -203,7 +205,7 @@ public class NoiseGeneratorPerlin64 extends NoiseGenerator
                         double var60 = this.lerp(var56, var33, var35);
                         double var62 = this.lerp(var49, var58, var60);
                         var10001 = var19++;
-                        par1ArrayOfDouble[var10001] += (var62 * var20);
+                        par1ArrayOfDouble[var10001] += FLOAT_PERLIN_GENERATOR ? (float) (var62 * var20) : var62 * var20;
                     }
                 }
             }