1 files changed, 42 insertions, 0 deletions
diff --git a/src/common/schems.lua b/src/common/schems.lua
new file mode 100644
index 0000000..ace1637
--- /dev/null
+++ b/src/common/schems.lua
@@ -0,0 +1,42 @@
+skycraft.schems = {}
+
+function skycraft.get_schem(schemname)
+	return skycraft.schems[schemname].data
+end
+
+function skycraft.get_schem_raw(schemname)
+	return skycraft.schems[schemname].raw
+end
+
+function skycraft.load_schem(schemname)
+	local schem = {}
+	local file = io.open(skycraft.modpath .. "/schems/" .. schemname .. ".we", "r")
+	schem.raw = file:read()
+	file:seek("set")
+	local _, _, contents = file:read("*number", 1, "*all")
+	file:close()
+	schem.data = minetest.deserialize(contents)
+	skycraft.schems[schemname] = schem
+end
+
+function skycraft.check_schem(pos, schemname)
+	local schem = skycraft.get_schem(schemname)
+	for _, n in pairs(schem) do
+		if minetest.get_node(vector.add(pos, n)).name ~= n.name then
+			return false
+		end
+	end
+	return true
+end
+
+function skycraft.remove_schem(pos, schemname)
+	local schem = skycraft.get_schem(schemname)
+	for _, n in pairs(schem) do
+		minetest.remove_node(vector.add(pos, n))
+	end
+end
+
+function skycraft.add_schem(pos, schemname)
+	local schem_raw = skycraft.get_schem_raw(schemname)
+	worldedit.deserialize(pos, schem_raw)
+end