1 files changed, 121 insertions, 0 deletions
diff --git a/clientmods/colour_chat/init.lua b/clientmods/colour_chat/init.lua
new file mode 100644
index 000000000..e3c82bf59
--- /dev/null
+++ b/clientmods/colour_chat/init.lua
@@ -0,0 +1,121 @@
+local modstorage = core.get_mod_storage()
+
+local register_on_message = core.register_on_sending_chat_message
+if core.register_on_sending_chat_messages then
+	register_on_message = core.register_on_sending_chat_messages
+end
+
+local function rgb_to_hex(rgb)
+	local hexadecimal = '#'
+
+	for key, value in pairs(rgb) do
+		local hex = ''
+
+		while(value > 0)do
+			local index = math.fmod(value, 16) + 1
+			value = math.floor(value / 16)
+			hex = string.sub('0123456789ABCDEF', index, index) .. hex			
+		end
+
+		if(string.len(hex) == 0)then
+			hex = '00'
+
+		elseif(string.len(hex) == 1)then
+			hex = '0' .. hex
+		end
+
+		hexadecimal = hexadecimal .. hex
+	end
+
+	return hexadecimal
+end
+
+local function color_from_hue(hue)
+	local h = hue / 60
+	local c = 255
+	local x = (1 - math.abs(h%2 - 1)) * 255
+
+  	local i = math.floor(h);
+  	if (i == 0) then
+		return rgb_to_hex({c, x, 0})
+  	elseif (i == 1) then 
+		return rgb_to_hex({x, c, 0})
+  	elseif (i == 2) then 
+		return rgb_to_hex({0, c, x})
+	elseif (i == 3) then
+		return rgb_to_hex({0, x, c});
+	elseif (i == 4) then
+		return rgb_to_hex({x, 0, c});
+	else 
+		return rgb_to_hex({c, 0, x});
+	end
+end
+
+local function canTalk()
+	if core.get_privilege_list then
+		return core.get_privilege_list().shout
+	else
+		return true
+	end
+end
+
+local function say(message)
+	if not canTalk() then
+		minetest.display_chat_message("You need 'shout' in order to talk")
+		return
+	end
+	minetest.send_chat_message(message)
+	if minetest.get_server_info().protocol_version < 29 then
+		local name = minetest.localplayer:get_name()
+		minetest.display_chat_message("<"..name.."> " .. message)
+	end
+end
+
+register_on_message(function(message)
+	if message:sub(1,1) == "/" or modstorage:get_string("colour") == "" or modstorage:get_string("colour") == "white" then
+		return false
+	end
+
+	say(core.get_color_escape_sequence(modstorage:get_string("colour")) .. message)
+	return true
+end)
+
+core.register_chatcommand("set_colour", {
+	description = core.gettext("Change chat colour"),
+	func = function(colour)
+		modstorage:set_string("colour", colour)
+		return true, "Chat colour changed."
+	end,
+})
+
+core.register_chatcommand("rainbow", {
+	description = core.gettext("rainbow text"),
+	func = function(param)
+		if not canTalk() then
+			return false, "You need 'shout' in order to use this command"
+		end
+		local step = 360 / param:len()
+ 		local hue = 0
+     		 -- iterate the whole 360 degrees
+		local output = ""
+      		for i = 1, param:len() do
+			local char = param:sub(i,i)
+			if char:match("%s") then
+				output = output .. char
+			else
+        			output = output  .. core.get_color_escape_sequence(color_from_hue(hue)) .. char 
+			end
+        		hue = hue + step
+		end
+		say(output)
+		return true
+end,
+})
+
+core.register_chatcommand("say", {
+	description = core.gettext("Send text without applying colour to it"),
+	func = function(text)
+		say(text)
+		return true
+	end,
+})