Add digilines support, animation when changing

2 files changed, 71 insertions, 19 deletions

diff --git a/init.lua b/init.lua
index bc8ae85..94019d7 100644
--- a/init.lua
+++ b/init.lua
@@ -2,21 +2,56 @@ local function escape_texture(str)
 	return str:gsub("[%[%()^:]", "\\%1")
 end
 
-function render_depboard(pos, objref)
-	local font = font_api.get_font("metro")
-	local line = font:render("10", font:get_height(1)*15, font:get_height(1), {halign="left", color="#ffffff"})
-	local dest = font:render("Origin Marcuse", font:get_height(1)*15, font:get_height(1), {halign="left", color="#ffffff"})
-	local remark = font:render("5 minutes Delay", font:get_height(1)*15, font:get_height(1), {halign="left", color="#ff0000"})
-	local m = font:render("10", font:get_height(1)*15, font:get_height(1), {halign="left", color="#ffffff"})
-	local s = font:render("40", font:get_height(1)*15, font:get_height(1), {halign="left", color="#ffffff"})
-	local line_color = "#00ffff"
-	objref:set_properties({ textures= {"[combine:256x256:0,0=station_sign.png\\^(line_bg.png\\^\\[colorize\\:"..line_color.."\\:150)\\^\\[resize\\:256x256:200,100="..escape_texture(line)..":10,100="..escape_texture(dest)..":200,127="..escape_texture(m)..":228,127="..escape_texture(s)..":10,127="..escape_texture(remark)},
-	                        visual_size = {x=3, y=3} })
+departureboards = {}
+
+departureboards.contents = {}
 
+local cts = departureboards.contents
 
+local function render_depboard(pos, objref)
+	local c = cts[minetest.hash_node_position(pos)]
+	local meta = minetest.get_meta(pos)
+	local changed = false
+	local tb = {}
+	if meta then
+		tb = minetest.deserialize(meta:get_string("contents") or "") or {}
+		if not c then
+			c = tb
+		end
+		for k,v in pairs(c) do
+			if not tb[k] or tb[k] ~= v then
+				changed = true
+			end
+			tb[k] = tostring(v)
+		end
+		meta:set_string("contents", minetest.serialize(tb))
+	end
+	if not c then
+		c = {}
+	end
+	local font = font_api.get_font("metro")
+	local line = font:render(tb.line or "", font:get_height(1)*15, font:get_height(1), {halign="left", color=tb.lfg or "#ff0000"})
+	local dest = font:render(tb.dest or "", font:get_height(1)*15, font:get_height(1), {halign="left", color="#ffffff"})
+	local remark = font:render(tb.rem or "", font:get_height(1)*15, font:get_height(1), {halign="left", color=tb.remcolor or "#ff0000"})
+	local m = font:render(tb.m or "", font:get_height(1)*15, font:get_height(1), {halign="left", color="#ffffff"})
+	local s = font:render(tb.s or "", font:get_height(1)*15, font:get_height(1), {halign="left", color="#ffffff"})
+	local line_color = tb.lbg or "#00ffff"
+	local delay = 0
+	if changed then
+		delay = 1  -- add here splitflap sound
+	end
+	objref:set_properties({ is_visible=false })
+	minetest.after(delay, function () objref:set_properties({ textures= {"[combine:256x256:0,0=station_sign.png\\^(line_bg.png\\^\\[colorize\\:"..line_color.."\\:150)\\^\\[resize\\:256x256:200,100="..escape_texture(line)..":10,100="..escape_texture(dest)..":200,127="..escape_texture(m)..":228,127="..escape_texture(s)..":10,127="..escape_texture(remark)},
+																			visual_size = {x=3, y=3}, is_visible=true }) end)
 end
 
 
+
+local function on_digiline_receive(pos, _, channel, msg)
+	cts[minetest.hash_node_position(pos)] = msg
+	display_api.update_entities(pos)
+end
+
 display_api.register_display_entity("departureboards:display")
 
 minetest.register_node("departureboards:departureboard", {
@@ -26,12 +61,16 @@ minetest.register_node("departureboards:departureboard", {
 		drawtype = "nodebox",
 		node_box = {
 			type = "fixed",
-			fixed = {-3/2, -1/2, 0.5,
-					 3/2, 1/2, 0.5 - 0.1},
+			fixed = {-3/6, -1/6, 0.5/3,
+					 3/6, 1/6, 0.5/3 - 0.03},
 		},
+		selection_box = {
+			type = "fixed",
+			fixed={-1.5,-1/2, 0.5, 1.5, 1/2, 0.5-0.1}},
+		visual_scale=3,
 		tiles = { "signs_road_sides.png", "signs_road_sides.png", 
-			          "signs_road_sides.png", "signs_road_sides.png", 
-			          "signs_road_sides.png", "signs_road_sides.png" },
+			          "signs_road_sides.png", "signs_road_sides.png", "signs_road_sides.png",
+			          {name="animation_frames.png", animation={type="vertical_frames", aspect_w=96, aspect_h=96, length=1.0}}},
 		groups = {choppy=2, dig_immediate=2, not_blocking_trains=1, display_api=1},
 		sounds = default.node_sound_defaults(),
 		display_entities = {
@@ -48,16 +87,29 @@ minetest.register_node("departureboards:departureboard", {
 		on_construct = 	function(pos)
 				local ndef = minetest.registered_nodes[minetest.get_node(pos).name]
 				local meta = minetest.get_meta(pos)
-				meta:set_string("font", ndef.display_entities.font_name or
-				                        font_api.get_default_font_name())
-				signs_api.set_formspec(pos)
+				meta:set_string("contents", minetest.serialize({}))
+				meta:set_string("formspec", "field[channel;Channel;${channel}]")
 				display_api.on_construct(pos)
 			end,
 		on_destruct = display_api.on_destruct,
 		on_rotate = signs_api.on_rotate,
-		on_receive_fields =  signs_api.on_receive_fields,
+		on_receive_fields =  function(pos, _, fields, sender)
+			local name = sender:get_player_name()
+			if minetest.is_protected(pos, name) and not minetest.check_player_privs(name, {protection_bypass=true}) then
+				return
+			end
+			if (fields.channel) then
+				minetest.get_meta(pos):set_string("channel", fields.channel)
+			end
+		end,
 		on_punch = function(pos, node, player, pointed_thing)
 				signs_api.set_formspec(pos)
 				display_api.update_entities(pos)
 		end,
+		digiline = {
+				receptor = {},
+				effector = {
+					action = on_digiline_receive
+				},
+		},
 })
diff --git a/mod.conf b/mod.conf
index 93fbb8f..3c6f5d0 100644
--- a/mod.conf
+++ b/mod.conf
@@ -2,4 +2,4 @@ name = departureboards
 title = Departure Boards
 description = A mod providing departure boards for advtrains
 depends = default,display_api,font_api,signs_api
-optional_depends = intllib
\ No newline at end of file
+optional_depends = intllib,digilines
\ No newline at end of file