LuaAutomation - Basic component implementation

Implements the base code for LuaAutomation, an ATC rail and a punch-operated 'operation panel' as well as interface for passive components.
Changes in advtrains code where neccessary.
Supported passive components are light signals, switches and mesecon switches

1 files changed, 92 insertions, 0 deletions

diff --git a/advtrains/advtrains_luaautomation/atc_rail.lua b/advtrains/advtrains_luaautomation/atc_rail.lua
new file mode 100644
index 0000000..2af03cf
--- /dev/null
+++ b/advtrains/advtrains_luaautomation/atc_rail.lua
@@ -0,0 +1,92 @@
+-- atc_rail.lua
+-- registers and handles the ATC rail. Active component.
+-- This is the only component that can interface with trains, so train interface goes here too.
+
+--Using subtable
+local r={}
+
+function r.fire_event(pos, evtdata)
+	
+	local ph=minetest.hash_node_position(pos)
+	local railtbl = atlatc.active.nodes[ph] or {}
+	
+	local arrowconn = railtbl.arrowconn
+	
+	--prepare ingame API for ATC. Regenerate each time since pos needs to be known
+	local atc_valid, atc_arrow
+	local train_id=advtrains.detector.on_node[ph]
+	local train=advtrains.trains[train_id]
+	if not train then return false end
+	if not train.path then
+		--we happened to get in between an invalidation step
+		--delay
+		atlatc.interrupt.add(0,pos,evtdata)
+		return
+	end
+	for index, ppos in pairs(train.path) do
+		if vector.equals(advtrains.round_vector_floor_y(ppos), pos) then
+			atc_arrow =
+					vector.equals(
+							advtrains.dirCoordSet(pos, arrowconn),
+							advtrains.round_vector_floor_y(train.path[index+train.movedir])
+					)
+			atc_valid = true
+		end
+	end
+	local customfct={
+		atc_send = function(cmd)
+			advtrains.atc.train_reset_command(train_id)
+			if atc_valid then
+				train.atc_command=cmd
+				train.atc_arrow=atc_arrow
+				return atc_valid
+			end
+		end,
+		atc_reset = function(cmd)
+			advtrains.atc.train_reset_command(train_id)
+			return true
+		end,
+		atc_arrow = atc_arrow
+	}
+	
+	atlatc.active.run_in_env(pos, evtdata, customfct)
+	
+end
+
+advtrains.register_tracks("default", {
+	nodename_prefix="advtrains_luaautomation:dtrack",
+	texture_prefix="advtrains_dtrack_atc",
+	models_prefix="advtrains_dtrack_detector",
+	models_suffix=".b3d",
+	shared_texture="advtrains_dtrack_rail_atc.png",
+	description=atltrans("LuaAutomation ATC Rail"),
+	formats={},
+	get_additional_definiton = function(def, preset, suffix, rotation)
+		return {
+			after_place_node = atlatc.active.after_place_node,
+			after_dig_node = atlatc.active.after_dig_node,
+
+			on_receive_fields = function(pos, ...)
+				atlatc.active.on_receive_fields(pos, ...)
+				
+				--set arrowconn (for ATC)
+				local ph=minetest.hash_node_position(pos)
+				local _, conn1=advtrains.get_rail_info_at(pos, advtrains.all_tracktypes)
+				atlatc.active.nodes[ph].arrowconn=conn1
+			end,
+
+			advtrains = {
+				on_train_enter = function(pos, train_id)
+					--do async. Event is fired in train steps
+					atlatc.interrupt.add(0, pos, {type="train", id=train_id})
+				end,
+			},
+			luaautomation = {
+				fire_event=r.fire_event
+			}
+		}
+	end
+}, advtrains.trackpresets.t_30deg_straightonly)
+
+
+atlatc.rail = r