1 files changed, 79 insertions, 0 deletions
diff --git a/obj.lua b/obj.lua
new file mode 100644
index 0000000..adb9a3a
--- /dev/null
+++ b/obj.lua
@@ -0,0 +1,79 @@
+local world = require "world"
+
+local obj = {}
+
+local types = {}
+function obj.load_types()
+	for _, f in ipairs(love.filesystem.getDirectoryItems "objects") do
+		local ts = assert(love.filesystem.load("objects/"..f))()
+		for t, v in pairs(ts) do
+			types[t] = v
+		end
+	end
+end
+ 
+function obj.new(type, pos, ...)
+	world.last_id = world.last_id + 1
+	local o = setmetatable(
+		{id = world.last_id, data = {pos = pos}, type = type}, obj)
+	o:init(...)
+	return o
+end
+
+function obj.load(id, data)
+	local o = setmetatable({id = id, data = data, type = data.type}, obj)
+	o:init()
+	return o
+end
+
+function obj.is_obj(v)
+	return getmetatable(v) == obj
+end
+
+function obj:__index(v)
+	if obj[v] then
+		return obj[v]
+	else
+		return types[rawget(self, "type")][v]
+	end
+end
+
+function obj:overload(m, ...)
+	if types[self.type][m] then
+		return types[self.type][m](self, ...)
+	end
+end
+
+function obj:tick(...)
+	local chunk = world.chunk(unpack(self.data.pos))
+	if chunk ~= self.chunk then
+		self.chunk.objects[self.id] = nil
+		chunk.objects[self.id] = self
+		self.chunk = chunk
+	end
+	return self:overload("tick", ...)
+end
+
+function obj:draw(...)
+	love.graphics.push()
+	love.graphics.translate(unpack(self.data.pos))
+	if self.data.angle then
+		love.graphics.rotate(self.data.angle)
+	end
+	self:overload("draw", ...)
+	love.graphics.pop()
+end
+
+function obj:init(...)
+	self.chunk = world.chunk(unpack(self.data.pos))
+	world.objects[self.id] = self
+	return self:overload("init", ...)
+end
+
+function obj:unload()
+	self.chunk.objects[self.id] = nil
+	world.objects[self.id] = nil
+	return self:overload "unload"
+end
+
+return obj