Major refactoring

Added cactus and lilypads

src/main/java/mods/betterfoliage/common/util/Double3.java

@@ -1,5 +1,7 @@
 package mods.betterfoliage.common.util;
 
+import net.minecraftforge.common.util.ForgeDirection;
+
 public class Double3 {
 
 	public final double x;
@@ -12,10 +14,20 @@ public class Double3 {
 		this.z = z;
 	}
 	
+	public Double3(ForgeDirection dir) {
+		this.x = dir.offsetX;
+		this.y = dir.offsetY;
+		this.z = dir.offsetZ;
+	}
+	
 	public Double3 add(Double3 other) {
 		return new Double3(x + other.x, y + other.y, z + other.z);
 	}
 	
+	public Double3 add(double x, double y, double z) {
+		return new Double3(this.x + x, this.y + y, this.z + z);
+	}
+	
 	public Double3 scaleAxes(double sx, double sy, double sz) {
 		return new Double3(x * sx, y * sy, z * sz);
 	}