completed previous check-in, for #1650

api/buildcraft/api/blueprints/Schematic.java

@@ -230,4 +230,13 @@ public abstract class Schematic {
 
 		return stackConsumed;
 	}
+
+	/**
+	 * Return true if this schematic is standalone, false if it needs other
+	 * blocks to be build on. Typically, solid blocks are standalone, others
+	 * are not. All standalone blocks are supposed to be built first.
+	 */
+	public boolean isStandalone () {
+		return true;
+	}
 }

api/buildcraft/api/blueprints/SchematicBlock.java

@@ -162,4 +162,8 @@ public class SchematicBlock extends SchematicBlockBase  implements Comparable<Sc
 	public int compareTo(SchematicBlock o) {
 		return 0;
 	}
+
+	public boolean isStandalone () {
+		return block.isOpaqueCube();
+	}
 }