Update 5

src/main/java/com/teammoeg/steampowered/create/SPShapes.java

@@ -0,0 +1,84 @@
+package com.teammoeg.steampowered.create;
+
+import static net.minecraft.util.Direction.UP;
+import java.util.function.BiFunction;
+import com.simibubi.create.foundation.utility.VoxelShaper;
+import net.minecraft.block.Block;
+import net.minecraft.util.Direction;
+import net.minecraft.util.Direction.Axis;
+import net.minecraft.util.math.shapes.IBooleanFunction;
+import net.minecraft.util.math.shapes.VoxelShape;
+import net.minecraft.util.math.shapes.VoxelShapes;
+
+public class SPShapes {
+
+    // From create:AllShapes
+    public static Builder shape(VoxelShape shape) {
+        return new Builder(shape);
+    }
+
+
+    public static Builder shape(double x1, double y1, double z1, double x2, double y2, double z2) {
+        return shape(cuboid(x1, y1, z1, x2, y2, z2));
+    }
+
+    public static VoxelShape cuboid(double x1, double y1, double z1, double x2, double y2, double z2) {
+        return Block.box(x1, y1, z1, x2, y2, z2);
+    }
+
+    public static class Builder {
+        VoxelShape shape;
+
+        public Builder(VoxelShape shape) {
+            this.shape = shape;
+        }
+
+        public Builder add(VoxelShape shape) {
+            this.shape = VoxelShapes.or(this.shape, shape);
+            return this;
+        }
+
+        public Builder add(double x1, double y1, double z1, double x2, double y2, double z2) {
+            return add(cuboid(x1, y1, z1, x2, y2, z2));
+        }
+
+        public Builder erase(double x1, double y1, double z1, double x2, double y2, double z2) {
+            this.shape =
+                    VoxelShapes.join(shape, cuboid(x1, y1, z1, x2, y2, z2), IBooleanFunction.ONLY_FIRST);
+            return this;
+        }
+
+        public VoxelShape build() {
+            return shape;
+        }
+
+        public VoxelShaper build(BiFunction<VoxelShape, Direction, VoxelShaper> factory, Direction direction) {
+            return factory.apply(shape, direction);
+        }
+
+        public VoxelShaper build(BiFunction<VoxelShape, Axis, VoxelShaper> factory, Axis axis) {
+            return factory.apply(shape, axis);
+        }
+
+        public VoxelShaper forDirectional(Direction direction) {
+            return build(VoxelShaper::forDirectional, direction);
+        }
+
+        public VoxelShaper forAxis() {
+            return build(VoxelShaper::forAxis, Axis.Y);
+        }
+
+        public VoxelShaper forHorizontalAxis() {
+            return build(VoxelShaper::forHorizontalAxis, Axis.Z);
+        }
+
+        public VoxelShaper forHorizontal(Direction direction) {
+            return build(VoxelShaper::forHorizontal, direction);
+        }
+
+        public VoxelShaper forDirectional() {
+            return forDirectional(UP);
+        }
+
+    }
+}