Add templates

technic/machines/other/frames.lua

@@ -1,6 +1,9 @@
 frames = {}
 
-function get_face(pos,ppos,pvect)
+-- Helpers
+
+local function get_face(pos,ppos,pvect)
+	-- Raytracer to get which face has been clicked
 	ppos={x=ppos.x-pos.x,y=ppos.y-pos.y+1.5,z=ppos.z-pos.z}
 	if pvect.x>0 then
 		local t=(-0.5-ppos.x)/pvect.x
@@ -37,7 +40,74 @@ function get_face(pos,ppos,pvect)
 	end
 end
 
+local function pos_in_list(l,pos)
+	for _,p in ipairs(l) do
+		if p.x==pos.x and p.y==pos.y and p.z==pos.z then return true end
+	end
+	return false
+end
 
+local function add_table(table,toadd)
+	local i=1
+	while true do
+		o=table[i]
+		if o==toadd then return end
+		if o==nil then break end
+		i=i+1
+	end
+	table[i]=toadd
+end
+
+local function move_nodes_vect(poslist,vect,must_not_move)
+	for _,pos in ipairs(poslist) do
+		local npos=vector.add(pos,vect)
+		local name = minetest.env:get_node(npos).name
+		if (name~="air" and minetest.registered_nodes[name].liquidtype=="none") and not(pos_in_list(poslist,npos)) then
+			return
+		end
+		if pos.x==must_not_move.x and pos.y==must_not_move.y and pos.z==must_not_move.z then
+			return
+		end 
+	end
+	nodelist={}
+	for _,pos in ipairs(poslist) do
+		local node=minetest.env:get_node(pos)
+		local meta=minetest.env:get_meta(pos):to_table()
+		nodelist[#(nodelist)+1]={pos=pos,node=node,meta=meta}
+	end
+	objects={}
+	for _,pos in ipairs(poslist) do
+		for _,object in ipairs(minetest.env:get_objects_inside_radius(pos, 1)) do
+			add_table(objects,object)
+		end
+	end
+	for _,obj in ipairs(objects) do
+		obj:setpos(vector.add(obj:getpos(),vect))
+		le=obj:get_luaentity()
+		if le and le.name == "pipeworks:tubed_item" then
+			le.start_pos=vector.add(le.start_pos,vect)
+		end
+	end
+	for _,n in ipairs(nodelist) do
+		local npos=vector.add(n.pos,vect)
+		minetest.env:set_node(npos,n.node)
+		local meta=minetest.env:get_meta(npos)
+		meta:from_table(n.meta)
+		for __,pos in ipairs(poslist) do
+			if npos.x==pos.x and npos.y==pos.y and npos.z==pos.z then
+				table.remove(poslist, __)
+				break
+			end
+		end
+	end
+	for __,pos in ipairs(poslist) do
+		minetest.env:remove_node(pos)
+	end
+end
+
+
+
+-- Frames
 for xm=0,1 do
 for xp=0,1 do
 for ym=0,1 do
@@ -141,9 +211,36 @@ end
 end
 end
 
-function frame_motor_on(pos, node)
+
+
+
+-- Frame motor
+local function connected(pos,c,adj)
+	for _,vect in ipairs(adj) do
+		local pos1=vector.add(pos,vect)
+		local nodename=minetest.env:get_node(pos1).name
+		if not(pos_in_list(c,pos1)) and nodename~="air" and
+		(minetest.registered_nodes[nodename].frames_can_connect==nil or
+		minetest.registered_nodes[nodename].frames_can_connect(pos1,vect)) then
+			c[#(c)+1]=pos1
+			if minetest.registered_nodes[nodename].frame==1 then
+				local adj=minetest.registered_nodes[nodename].frame_connect_all(pos1)
+				connected(pos1,c,adj)
+			end
+		end
+	end
+end
+
+local function get_connected_nodes(pos)
+	c={pos}
+	local nodename=minetest.env:get_node(pos).name
+	connected(pos,c,minetest.registered_nodes[nodename].frame_connect_all(pos))
+	return c
+end
+
+local function frame_motor_on(pos, node)
 	local dirs = {{x=0,y=1,z=0},{x=0,y=0,z=1},{x=0,y=0,z=-1},{x=1,y=0,z=0},{x=-1,y=0,z=0},{x=0,y=-1,z=0}}
-	local nnodepos = frames.addVect(pos, dirs[math.floor(node.param2/4)+1])
+	local nnodepos = vector.add(pos, dirs[math.floor(node.param2/4)+1])
 	local dir = minetest.facedir_to_dir(node.param2)
 	local nnode=minetest.get_node(nnodepos)
 	local meta = minetest.get_meta(pos)
@@ -173,103 +270,194 @@ minetest.register_node("technic:frame_motor",{
 	end
 })
 
-function add_table(table,toadd)
-	local i=1
-	while true do
-		o=table[i]
-		if o==toadd then return end
-		if o==nil then break end
-		i=i+1
-	end
-	table[i]=toadd
-end
 
-function move_nodes_vect(poslist,vect,must_not_move,owner)
+
-	if minetest.is_protected then
+-- Templates
-		for _,pos in ipairs(poslist) do
+local function template_connected(pos,c)
-			local npos=frames.addVect(pos,vect)
+	for _,vect in ipairs({{x=0,y=1,z=0},{x=0,y=0,z=1},{x=0,y=0,z=-1},{x=1,y=0,z=0},{x=-1,y=0,z=0},{x=0,y=-1,z=0}}) do
-			if minetest.is_protected(pos, owner) or minetest.is_protected(npos, owner) then
+		local pos1=vector.add(pos,vect)
-				return
+		local nodename=minetest.get_node(pos1).name
+		if not(pos_in_list(c,pos1)) and nodename=="technic:template" then
+			c[#(c)+1]=pos1
+			template_connected(pos1,c)
 		end
 	end
 end
-	for _,pos in ipairs(poslist) do
-		local npos=frames.addVect(pos,vect)
-		local name = minetest.env:get_node(npos).name
-		if (name~="air" and minetest.registered_nodes[name].liquidtype=="none") and not(pos_in_list(poslist,npos)) then
-			return
-		end
-		if pos.x==must_not_move.x and pos.y==must_not_move.y and pos.z==must_not_move.z then
-			return
-		end 
-	end
-	nodelist={}
-	for _,pos in ipairs(poslist) do
-		local node=minetest.env:get_node(pos)
-		local meta=minetest.env:get_meta(pos):to_table()
-		nodelist[#(nodelist)+1]={pos=pos,node=node,meta=meta}
-	end
-	objects={}
-	for _,pos in ipairs(poslist) do
-		for _,object in ipairs(minetest.env:get_objects_inside_radius(pos, 1)) do
-			add_table(objects,object)
-		end
-	end
-	for _,obj in ipairs(objects) do
-		obj:setpos(frames.addVect(obj:getpos(),vect))
-		le=obj:get_luaentity()
-		if le and le.name == "pipeworks:tubed_item" then
-			le.start_pos=frames.addVect(le.start_pos,vect)
-		end
-	end
-	for _,n in ipairs(nodelist) do
-		local npos=frames.addVect(n.pos,vect)
-		minetest.env:set_node(npos,n.node)
-		local meta=minetest.env:get_meta(npos)
-		meta:from_table(n.meta)
-		for __,pos in ipairs(poslist) do
-			if npos.x==pos.x and npos.y==pos.y and npos.z==pos.z then
-				table.remove(poslist, __)
-				break
-			end
-		end
-	end
-	for __,pos in ipairs(poslist) do
-		minetest.env:remove_node(pos)
-	end
-end
 
-function get_connected_nodes(pos)
+local function get_templates(pos)
 	c={pos}
-	local nodename=minetest.env:get_node(pos).name
+	template_connected(pos,c)
-	connected(pos,c,minetest.registered_nodes[nodename].frame_connect_all(pos))
 	return c
 end
 
-function frames.addVect(pos,vect)
+local function save_node(pos)
-	return {x=pos.x+vect.x,y=pos.y+vect.y,z=pos.z+vect.z}
+	local node = minetest.get_node(pos)
+	if node.name == "air" or node.name == "technic:template" then return end
+	local meta = minetest.get_meta(pos)
+	local meta0 = meta:to_table()
+	for _, list in pairs(meta0.inventory) do
+		for key, stack in pairs(list) do
+			list[key] = stack:to_string()
+		end
+	end
+	node.meta = meta0
+	return node
 end
 
-function pos_in_list(l,pos)
+local function restore_node(pos, node)
-	for _,p in ipairs(l) do
+	minetest.set_node(pos, node)
-		if p.x==pos.x and p.y==pos.y and p.z==pos.z then return true end
+	local meta = minetest.get_meta(pos)
+	for _, list in pairs(node.meta.inventory) do
+		for key, stack in pairs(list) do
+			list[key] = ItemStack(stack)
 		end
-	return false
+	end
+	meta:from_table(node.meta)
 end
 
-function connected(pos,c,adj)
+local function expand_template(pos)
+	local meta = minetest.get_meta(pos)
+	local c = meta:get_string("connected")
+	if c == "" then return end
+	meta:set_string("connected", "")
+	c = minetest.deserialize(c)
+	for _, vect in ipairs(c) do
+		if vect.x ~= 0 or vect.y ~= 0 or vect.z ~= 0 then
+			local pos1 = vector.add(pos, vect)
+			local saved_node = save_node(pos1)
+			minetest.set_node(pos1, {name="technic:template"})
+			local meta1 = minetest.get_meta(pos1)
+			if saved_node ~= nil then
+				meta1:set_string("saved_node", minetest.serialize(saved_node))
+			else
+				meta1:set_string("saved_node", "")
+			end
+		end
+	end
+end
+
+minetest.register_node("technic:template",{
+	description = "Template",
+	tiles = {"technic_mv_cable.png"},
+	groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2},
+	on_destruct = function(pos, node)
+		local meta = minetest.get_meta(pos)
+		local saved_node = meta:get_string("saved_node")
+		if saved_node ~= "" then
+			local nnode = minetest.deserialize(saved_node)
+			minetest.after(0, restore_node, pos, nnode)
+		end
+	end,
+	on_punch = function(pos,node,puncher)
+		hacky_swap_node(pos, "technic:template_disabled")
+	end
+})
+
+minetest.register_node("technic:template_disabled",{
+	description = "Template",
+	tiles = {"technic_hv_cable.png"},
+	groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2},
+	on_destruct = function(pos, node)
+		local meta = minetest.get_meta(pos)
+		local saved_node = meta:get_string("saved_node")
+		if saved_node ~= "" then
+			local nnode = minetest.deserialize(saved_node)
+			minetest.after(0, restore_node, pos, nnode)
+		end
+	end,
+	on_punch = function(pos,node,puncher)
+		hacky_swap_node(pos, "technic:template")
+	end
+})
+
+minetest.register_craftitem("technic:template_replacer",{
+	description = "Template (replacing)",
+	inventory_image = "technic_template_replacer.png",
+	on_place = function(itemstack, placer, pointed_thing)
+		local p = pointed_thing.under
+		if minetest.is_protected and minetest.is_protected(p, placer:get_player_name()) then
+			return nil
+		end
+		local node = minetest.get_node(p)
+		if node.name == "technic:template" then return end
+		local saved_node = save_node(p)
+		minetest.set_node(p, {name="technic:template"})
+		itemstack:take_item()
+		if saved_node ~= nil then
+			local meta = minetest.get_meta(p)
+			meta:set_string("saved_node", minetest.serialize(saved_node))
+		end
+		return itemstack
+	end
+})
+
+minetest.register_tool("technic:template_tool",{
+	description = "Template tool",
+	inventory_image = "technic_template_tool.png",
+	on_use = function(itemstack, puncher, pointed_thing)
+		local pos = pointed_thing.under
+		if minetest.is_protected and minetest.is_protected(pos, placer:get_player_name()) then
+			return nil
+		end
+		local node = minetest.get_node(pos)
+		if node.name ~= "technic:template" then return end
+		local meta = minetest.get_meta(pos)
+		local c2 = meta:get_string("connected")
+		if c2 ~= "" then
+			expand_template(pos)
+			return
+		end
+		local templates = get_templates(pos)
+		local c = {}
+		for _,p in ipairs(templates) do
+			local np = {x=p.x-pos.x, y=p.y-pos.y, z=p.z-pos.z}
+			if not pos_in_list(c,np) then
+				c[#c+1] = np
+			end
+			if p.x ~= pos.x or p.y ~= pos.y or p.z ~= pos.z then
+				minetest.set_node(p, {name = "air"})
+			end
+		end
+		meta:set_string("connected", minetest.serialize(c))
+	end
+})
+
+
+
+-- Template motor
+local function get_template_nodes(pos)
+	local meta = minetest.get_meta(pos)
+	local connected = meta:get_string("connected")
+	if connected == "" then return {} end
+	local adj = minetest.deserialize(connected)
+	local c = {}
 	for _,vect in ipairs(adj) do
-		local pos1=frames.addVect(pos,vect)
+		local pos1=vector.add(pos,vect)
 		local nodename=minetest.env:get_node(pos1).name
-		if not(pos_in_list(c,pos1)) and nodename~="air" and
+		if not(pos_in_list(c,pos1)) and nodename~="air" then
-		(minetest.registered_nodes[nodename].frames_can_connect==nil or
-		minetest.registered_nodes[nodename].frames_can_connect(pos1,vect)) then
 			c[#(c)+1]=pos1
-			if minetest.registered_nodes[nodename].frame==1 then
-				local adj=minetest.registered_nodes[nodename].frame_connect_all(pos1)
-				connected(pos1,c,adj)
 		end
 	end
+	return c
+end
+
+local function template_motor_on(pos, node)
+	local dirs = {{x=0,y=1,z=0},{x=0,y=0,z=1},{x=0,y=0,z=-1},{x=1,y=0,z=0},{x=-1,y=0,z=0},{x=0,y=-1,z=0}}
+	local nnodepos = vector.add(pos, dirs[math.floor(node.param2/4)+1])
+	local dir = minetest.facedir_to_dir(node.param2)
+	local nnode=minetest.get_node(nnodepos)
+	--if minetest.registered_nodes[nnode.name].template==1 then
+	if nnode.name == "technic:template" then
+		local connected_nodes=get_template_nodes(nnodepos)
+		move_nodes_vect(connected_nodes,dir,pos)
 	end
 end
 
+minetest.register_node("technic:template_motor",{
+	description = "Template motor",
+	tiles = {"pipeworks_filter_top.png^[transformR90", "technic_lv_cable.png", "technic_lv_cable.png",
+		"technic_lv_cable.png", "technic_lv_cable.png", "technic_lv_cable.png"},
+	groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2,mesecon=2},
+	paramtype2 = "facedir",
+	mesecons={effector={action_on=template_motor_on}},
+})