From 7f5eaac5c35d4c26d566b39a45e93c4582712b90 Mon Sep 17 00:00:00 2001
From: cheapie <no-email-for-you@example.com>
Date: Thu, 30 Apr 2020 00:44:04 -0500
Subject: Add channel copier

---
 channelcopier.lua | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 channelcopier.lua

(limited to 'channelcopier.lua')

diff --git a/channelcopier.lua b/channelcopier.lua
new file mode 100644
index 0000000..7a86514
--- /dev/null
+++ b/channelcopier.lua
@@ -0,0 +1,90 @@
+minetest.register_tool("digistuff:channelcopier",{
+	description = "Digilines Channel Copier (shift-click to copy, click to paste)",
+	inventory_image = "digistuff_channelcopier.png",
+	on_use = function(itemstack,player,pointed)
+		if not (pointed and pointed.under) then return itemstack end
+		if not (player and player:get_player_name()) then return end
+		local pos = pointed.under
+		local name = player:get_player_name()
+		local node = minetest.get_node(pos)
+		if not node then return itemstack end
+		if minetest.registered_nodes[node.name]._digistuff_channelcopier_fieldname then
+			if player:get_player_control().sneak then
+				local channel = minetest.get_meta(pointed.under):get_string(minetest.registered_nodes[node.name]._digistuff_channelcopier_fieldname)
+				if type(channel) == "string" and channel ~= "" then
+					local stackmeta = itemstack:get_meta()
+					stackmeta:set_string("channel",channel)
+					stackmeta:set_string("description","Digilines Channel Copier, set to: "..channel)
+					if player and player:get_player_name() then minetest.chat_send_player(player:get_player_name(),"Digilines channel copier set to "..minetest.colorize("#00FFFF",channel)..". Click another node to paste this channel there.") end
+				end
+			else
+				if minetest.is_protected(pos,name) and not minetest.check_player_privs(name,{protection_bypass=true}) then
+					minetest.record_protection_violation(pos,name)
+					return itemstack
+				end
+				if minetest.registered_nodes[node.name]._digistuff_channelcopier_fieldname then
+					local channel = itemstack:get_meta():get_string("channel")
+					if type(channel) ~= "string" or channel == "" then
+						minetest.chat_send_player(name,minetest.colorize("#FF5555","Error:").." No channel has been set yet. Shift-click to copy one.")
+						return itemstack
+					end
+					local oldchannel = minetest.get_meta(pos):get_string(minetest.registered_nodes[node.name]._digistuff_channelcopier_fieldname)
+					minetest.get_meta(pos):set_string(minetest.registered_nodes[node.name]._digistuff_channelcopier_fieldname,channel)
+					if type(oldchannel) == "string" and oldchannel ~= "" then
+						if channel == oldchannel then
+							minetest.chat_send_player(name,"Channel of target node is already "..minetest.colorize("#00FFFF",oldchannel)..".")
+						else
+							minetest.chat_send_player(name,string.format("Channel of target node changed from %s to %s.",minetest.colorize("#00FFFF",oldchannel),minetest.colorize("#00FFFF",channel)))
+						end
+					else
+						minetest.chat_send_player(name,"Channel of target node set to "..minetest.colorize("#00FFFF",channel)..".")
+					end
+					if type(minetest.registered_nodes[node.name]._digistuff_channelcopier_onset) == "function" then
+						minetest.registered_nodes[node.name]._digistuff_channelcopier_onset(pos,node,player,channel,oldchannel)
+					end
+				end
+			end
+		end
+		return itemstack
+	end,
+})
+
+minetest.register_craft({
+	output = "digistuff:channelcopier",
+	recipe = {
+		{"mesecons_fpga:programmer"},
+		{"digilines:wire_std_00000000"}
+	}
+})
+
+
+--NOTE: Asking to have your own mod added to here is not the right way to add compatibility with the channel copier.
+--Instead, include a _digistuff_channelcopier_fieldname field in your nodedef set to the name of the metadata field that contains the channel.
+--If you need an action to occur after the channel is set, place a function in _digistuff_channelcopier_onset.
+--Function signature is _digistuff_channelcopier_onset(pos,node,player,new_channel,old_channel)
+
+local additionalnodes = {
+	["digilines:chest"] = "channel",
+	["digilines:lcd"] = "channel",
+	["digilines:lightsensor"] = "channel",
+	["digilines:rtc"] = "channel",
+	["pipeworks:digiline_detector_tube_1"] = "channel",
+	["pipeworks:digiline_detector_tube_2"] = "channel",
+	["pipeworks:digiline_detector_tube_3"] = "channel",
+	["pipeworks:digiline_detector_tube_4"] = "channel",
+	["pipeworks:digiline_detector_tube_5"] = "channel",
+	["pipeworks:digiline_detector_tube_6"] = "channel",
+	["pipeworks:digiline_detector_tube_7"] = "channel",
+	["pipeworks:digiline_detector_tube_8"] = "channel",
+	["pipeworks:digiline_detector_tube_9"] = "channel",
+	["pipeworks:digiline_detector_tube_10"] = "channel",
+	["pipeworks:digiline_filter"] = "channel",
+}
+
+for name,field in pairs(additionalnodes) do
+	if minetest.registered_nodes[name] and not minetest.registered_nodes[name]._digistuff_channelcopier_fieldname then
+		minetest.override_item(name,{_digistuff_channelcopier_fieldname = field})
+	end
+end
+
+
-- 
cgit v1.2.3