initial

1 files changed, 31 insertions, 0 deletions

diff --git a/class.lua b/class.lua
new file mode 100644
index 0000000..8fb84b0
--- /dev/null
+++ b/class.lua
@@ -0,0 +1,31 @@
+-- currently a class is a table T with T.__index = T
+-- then to make an instance of this class, we do
+--		setmetatable(instance,T)
+-- this should be fine for anything we wish to do.
+-- it is possible we will eventually split this into two separate
+-- tables perhaps? i don't see why we would ever do that though
+
+local function class()
+	local T = {}
+	T.__index = T
+	return T
+end
+
+local function extend(Base)
+	local T = {}
+	T.__index = T
+	for k,v in pairs(Base) do
+		if k:sub(1,2) == "__" and k~="__index" then
+			T[k]=v
+		end
+	end
+	setmetatable(T,{__index=Base})
+	return T
+end
+
+return setmetatable({
+	class=class,
+	extend=extend
+},{__call=class})
+
+