3 Commits

Author	SHA1	Message	Date
Tim	fefb3f9f20	make sure any expansion node is being replaced with air if it's buildable_to and no other second node is being used as replacement	2015-01-23 12:37:23 -05:00
Tim	8f0c7c20c6	make expanded items test for on_rightclick before actually placing	2015-01-23 12:37:23 -05:00
Tim	0a0c558c3a	rewrite the node stacking/expansion code, preventing a crash building on unknown nodes, and reduce table lookups and overall code	2015-01-23 12:37:23 -05:00