Add COP

Still more things I want to add to it, but it works for now.
Should show up in existing cars (once they do something for the first time, for now)

car.lua

@@ -118,7 +118,7 @@ local pieces = {
 		tiles = {
 			"celevator_cabinet_sides.png",
 			"celevator_cabinet_sides.png",
-			"celevator_car_wallpaper.png",
+			"celevator_car_wallpaper_2x.png^celevator_cop.png",
 			"celevator_cabinet_sides.png",
 		},
 	},
@@ -344,6 +344,19 @@ for _,def in ipairs(pieces) do
 	def.drawtype = "nodebox"
 	def.description = "Car "..def._position
 	def.light_source = 9
+	def.on_receive_fields = function(pos,_,fields,player)
+		local meta = minetest.get_meta(pos)
+		local carid = meta:get_int("carid")
+		if carid == 0 then return end
+		local carinfo = minetest.deserialize(celevator.storage:get_string(string.format("car%d",carid)))
+		if not carinfo then return end
+		local event = {
+			type = "cop",
+			fields = fields,
+			player = player:get_player_name(),
+		}
+		celevator.controller.run(carinfo.controllerpos,event)
+	end
 	minetest.register_node("celevator:car_"..def._position,def)
 end
 
@@ -391,3 +404,13 @@ minetest.register_abm({
 		entity:set_pos(vector.add(pos,vector.multiply(fdir,0.44)))
 	end,
 })
+
+function celevator.car.updatecop(pos)
+	local copmeta = minetest.get_meta(pos)
+	local carid = copmeta:get_int("carid")
+	if carid == 0 then return end
+	local carinfo = minetest.deserialize(celevator.storage:get_string(string.format("car%d",carid)))
+	if not carinfo then return end
+	local controllermeta = minetest.get_meta(carinfo.controllerpos)
+	copmeta:set_string("formspec",controllermeta:get_string("copformspec"))
+end

controller.lua

@@ -62,6 +62,8 @@ local function ondestruct(pos)
 	end
 	celevator.controller.equeue[minetest.hash_node_position(pos)] = nil
 	celevator.storage:set_string("controller_equeue",minetest.serialize(celevator.controller.equeue))
+	local carid = minetest.get_meta(pos):get_int("carid")
+	if carid ~= 0 then celevator.storage:set_string(string.format("car%d",carid),"") end
 end
 
 local function onrotate(controllerpos,node,user,mode,new_param2)
@@ -490,6 +492,10 @@ function celevator.controller.finish(pos,mem,changedinterrupts)
 				celevator.lantern.setlight(lantern.pos,"down",newlanterns[lantern.landing] == "down")
 			end
 		end
+		meta:set_string("copformspec",mem.copformspec)
+		if mem.copformspec ~= oldmem.copformspec and drivetype then
+			minetest.after(0.25,celevator.drives[drivetype].updatecopformspec,drivepos)
+		end
 		meta:set_string("mem",minetest.serialize(mem))
 		if node.name == "celevator:controller_open" then meta:set_string("formspec",mem.formspec or "") end
 		meta:set_string("formspec_hidden",mem.formspec or "")

controllerfw.lua

@@ -439,6 +439,23 @@ elseif event.iid == "opentimeout" then
 	fault("opentimeout",true)
 elseif event.iid == "closetimeout" then
 	fault("closetimeout",true)
+elseif event.type == "cop" then
+	local fields = event.fields
+	if mem.carstate == "normal" then
+		for k,v in pairs(fields) do
+			if string.sub(k,1,7) == "carcall" then
+				local landing = tonumber(string.sub(k,8,-1))
+				if v and landing and landing >= 1 and landing <= #mem.params.floorheights then
+					mem.carcalls[landing] = true
+				end
+			end
+		end
+		if fields.close and mem.doorstate == "open" then
+			interrupt(0,"close")
+		elseif fields.open and mem.doorstate == "closed" and not (mem.carmotion or juststarted) then
+			open()
+		end
+	end
 end
 
 local oldstate = mem.carstate
@@ -612,7 +629,7 @@ elseif mem.screenstate == "oobe_floortable" or mem.screenstate == "floortable" t
 		fs(minetest.formspec_escape(string.format("%d - Height: %d - PI: %s",i,mem.params.floorheights[i],mem.params.floornames[i]))..(i==1 and "" or ","))
 	end
 	fs(";"..tostring(#mem.params.floornames-mem.editingfloor+1)..";false]")
-	fs("button[8,2;2,1;add;New Floor]")
+	if #mem.params.floornames < 100 then fs("button[8,2;2,1;add;New Floor]") end
 	fs("button[8,3.5;2,1;edit;Edit Floor]")
 	if #mem.params.floornames > 2 then fs("button[8,5;2,1;remove;Remove Floor]") end
 	if mem.editingfloor < #mem.params.floornames then fs("button[8,6.5;2,1;moveup;Move Up]") end
@@ -775,4 +792,31 @@ if mem.carstate == "normal" and (mem.doorstate == "open" or mem.doorstate == "op
 	mem.lanterns[getpos()] = mem.direction
 end
 
+mem.copformspec = "formspec_version[7]"
+local floorcount = #mem.params.floornames
+local copcols = math.floor((floorcount-1)/10)+1
+local coprows = math.floor((floorcount-1)/copcols)+1
+local litimg = "celevator_copbutton_lit.png"
+local unlitimg = "celevator_copbutton_unlit.png"
+mem.copformspec = mem.copformspec..string.format("size[%f,%f]",copcols*1.25+2.5,coprows*1.25+4)
+for i=1,floorcount,1 do
+	local row = math.floor((i-1)/copcols)+1
+	local col = ((i-1)%copcols)+1
+	local yp = (coprows-row+1)*1.25
+	local xp = col*1.25
+	local tex = mem.carcalls[i] and litimg or unlitimg
+	mem.copformspec = mem.copformspec..string.format("image_button[%f,%f;1,1;%s;carcall%d;%d;false;false;%s]",xp,yp,tex,i,i,litimg)
+end
+
+local doxp = (copcols == 1) and 0.5 or 1.25
+mem.copformspec = mem.copformspec..string.format("image_button[%f,%f;1,1;%s;open;%s;false;false;%s]",doxp,coprows*1.25+1.5,unlitimg,minetest.formspec_escape("<|>"),litimg)
+
+local dcxp = 3.75
+if copcols == 1 then
+	dcxp = 2
+elseif copcols == 2 then
+	dcxp = 2.5
+end
+mem.copformspec = mem.copformspec..string.format("image_button[%f,%f;1,1;%s;close;%s;false;false;%s]",dcxp,coprows*1.25+1.5,unlitimg,minetest.formspec_escape(">|<"),litimg)
+
 return pos,mem,changedinterrupts

drive_entity.lua

@@ -364,6 +364,7 @@ function celevator.drives.entity.step(dtime)
 							celevator.car.spawncar(vector.round(vector.add(origin,vector.new(0,apos,0))),minetest.dir_to_yaw(minetest.fourdir_to_dir(carparam2)),carid)
 						end
 						apos = math.floor(apos+0.5)
+						minetest.after(0.25,celevator.drives.entity.updatecopformspec,pos)
 					elseif dremain < 0.2 then
 						vel = 0.2
 					elseif dremain < 2*maxvel and dremain < dmoved then
@@ -404,6 +405,7 @@ function celevator.drives.entity.step(dtime)
 						local carparam2 = meta:get_int("carparam2")
 						celevator.car.spawncar(vector.round(vector.add(origin,vector.new(0,apos,0))),minetest.dir_to_yaw(minetest.fourdir_to_dir(carparam2)),carid)
 						apos = math.floor(apos+0.5)
+						minetest.after(0.25,celevator.drives.entity.updatecopformspec,pos)
 					elseif dremain < 0.2 then
 						vel = 0.2
 					elseif dremain < 2*maxvel and dremain < dmoved then
@@ -785,3 +787,30 @@ function celevator.drives.entity.sheavetonode(carid)
 		param2 = minetest.dir_to_fourdir(dir),
 	})
 end
+
+function celevator.drives.entity.updatecopformspec(drivepos)
+	local entitydrives_running = minetest.deserialize(celevator.storage:get_string("entitydrives_running")) or {}
+	if entitydrives_running[minetest.hash_node_position(drivepos)] then return end
+	local drivemeta = minetest.get_meta(drivepos)
+	local carid = drivemeta:get_int("carid")
+	if carid == 0 then return end
+	local carinfo = minetest.deserialize(celevator.storage:get_string(string.format("car%d",carid)))
+	if not carinfo then return end
+	local formspec = minetest.get_meta(carinfo.controllerpos):get_string("copformspec")
+	local origin = minetest.string_to_pos(drivemeta:get_string("origin"))
+	if not origin then
+		minetest.log("error","[celevator] [entity drive] Invalid origin for drive at "..minetest.pos_to_string(drivepos))
+		drivemeta:set_string("fault","badorigin")
+		return
+	end
+	local apos = tonumber(drivemeta:get_string("apos")) or 0
+	local carpos = vector.add(origin,vector.new(0,apos,0))
+	local carnodes = celevator.drives.entity.gathercar(carpos,minetest.dir_to_yaw(minetest.fourdir_to_dir(minetest.get_node(carpos).param2)))
+	for hash in pairs(carnodes) do
+		local piecepos = minetest.get_position_from_hash(hash)
+		local piece = minetest.get_node(piecepos)
+		if piece.name == "celevator:car_010" then
+			minetest.get_meta(piecepos):set_string("formspec",formspec)
+		end
+	end
+end

drive_null.lua

@@ -230,3 +230,7 @@ function celevator.drives.null.resetfault(pos)
 	--This drive has no possible faults at this time (drive communication faults are generated by the controller), but the controller expects to be able to call this
 	minetest.get_meta(pos):set_string("fault","")
 end
+
+function celevator.drives.null.updatecopformspec()
+	--No car means no COP
+end