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-rw-r--r--advtrains/copytool.lua185
-rw-r--r--advtrains/init.lua1
-rw-r--r--advtrains/textures/advtrains_copytool.pngbin0 -> 779 bytes
3 files changed, 186 insertions, 0 deletions
diff --git a/advtrains/copytool.lua b/advtrains/copytool.lua
new file mode 100644
index 0000000..dc18081
--- /dev/null
+++ b/advtrains/copytool.lua
@@ -0,0 +1,185 @@
+--clipboard = {trainlen = number, [n] = {type = string, flipped = bool, }
+
+-- Yaw is in radians. There are 2pi rad in a circle. North is the 0 point and the angle increases anticlockwise.
+-- 4.712389 = 1.5pi; sin(1.5pi) = -1
+-- 7.853981 = 2.5pi; sin(2.5pi) = 1
+
+minetest.register_tool("advtrains:copytool", {
+ description = attrans("Train copy/paste tool\n\nLeft-click: copy train\nRight-click: paste train"),
+ inventory_image = "advtrains_copytool.png",
+ wield_image = "advtrains_copytool.png",
+ stack_max = 1,
+ -- Paste: Take the clipboard and the player yaw, and attempt to place a new train in the world.
+ -- The front of the train is used as the start of the new train and it proceeds backwards from
+ -- the direction of travel.
+ on_place = function(itemstack, placer, pointed_thing)
+ return advtrains.pcall(function()
+ if ((not pointed_thing.type == "node") or (not placer.get_player_name)) then
+ return
+ end
+ local pname = placer:get_player_name()
+
+ local node=minetest.get_node_or_nil(pointed_thing.under)
+ if not node then atprint("[advtrains]Ignore at placer position") return itemstack end
+ local nodename=node.name
+ if(not advtrains.is_track_and_drives_on(nodename, {default=true})) then
+ atprint("no track here, not placing.")
+ return itemstack
+ end
+ if not minetest.check_player_privs(placer, {train_operator = true }) then
+ minetest.chat_send_player(pname, "You don't have the train_operator privilege.")
+ return itemstack
+ end
+ if not minetest.check_player_privs(placer, {train_admin = true }) and minetest.is_protected(pointed_thing.under, placer:get_player_name()) then
+ return itemstack
+ end
+ local tconns=advtrains.get_track_connections(node.name, node.param2)
+ local yaw = placer:get_look_horizontal()
+ local plconnid = advtrains.yawToClosestConn(yaw, tconns)
+
+ local prevpos = advtrains.get_adjacent_rail(pointed_thing.under, tconns, plconnid, {default=true})
+ if not prevpos then
+ minetest.chat_send_player(pname, "The track you are trying to place the wagon on is not long enough!")
+ return
+ end
+
+ local meta = itemstack:get_meta()
+ if not meta then
+ minetest.chat_send_player(pname, attrans("The clipboard couldn't access the metadata. Paste failed."))
+ return
+ end
+ local clipboard = meta:get_string("clipboard")
+ if (clipboard == "") then
+ minetest.chat_send_player(pname, "The clipboard is empty.");
+ return
+ end
+ clipboard = minetest.deserialize(clipboard)
+ if (clipboard.wagons == nil) then
+ minetest.chat_send_player(pname, "The clipboard is empty.");
+ return
+ end
+
+ local wagons = {}
+ local n = 1
+ for _, wagonProto in pairs(clipboard.wagons) do
+ local wagon = advtrains.create_wagon(wagonProto.type, pname)
+ advtrains.wagons[wagon].wagon_flipped = wagonProto.wagon_flipped
+ wagons[n] = wagon
+ n = n + 1
+ end
+
+ local id=advtrains.create_new_train_at(pointed_thing.under, plconnid, 0, wagons)
+ local train = advtrains.trains[id]
+ train.off_track = train.end_index<train.path_trk_b
+ if (train.off_track) then
+ minetest.chat_send_player(pname, "Back of train would end up off track, cancelling.")
+ advtrains.remove_train(id)
+ return
+ end
+ train.text_outside = clipboard.text_outside
+ train.text_inside = clipboard.text_inside
+ train.routingcode = clipboard.routingcode
+ train.line = clipboard.line
+
+ return
+ end)
+ end,
+ -- Copy: Take the pointed-at train and put it on the clipboard
+ on_use = function(itemstack, user, pointed_thing)
+ if not user:get_player_name() then return end
+ if (pointed_thing.type ~= "object") then return end
+
+ local le = pointed_thing.ref:get_luaentity()
+ if (le == nil) then
+ minetest.chat_send_player(user:get_player_name(), "No such lua entity!")
+ return
+ end
+
+ local wagon = advtrains.wagons[le.id]
+ if (not (le.id and advtrains.wagons[le.id])) then
+ minetest.chat_send_player(user:get_player_name(), string.format("No such wagon: %s", le.id))
+ return
+ end
+
+ local train = advtrains.trains[wagon.train_id]
+ if (not train) then
+ minetest.chat_send_player(user:get_player_name(), string.format("No such train: %s", wagon.train_id))
+ return
+ end
+
+ -- Record the train length. The paste operation should require this much free space.
+ local clipboard = {
+ trainlen = math.ceil(train.trainlen),
+ text_outside = train.text_outside,
+ text_inside = train.text_inside,
+ routingcode = train.routingcode,
+ line = train.line,
+ wagons = {}
+ }
+ local trainLength = math.ceil(train.trainlen)
+
+ local n = 1
+ for _, wagonid in pairs(train.trainparts) do
+ local wagon = advtrains.wagons[wagonid]
+ clipboard.wagons[n] = {
+ wagon_flipped = wagon.wagon_flipped,
+ type = wagon.type
+ }
+ n = n + 1
+ end
+
+
+ local function flip_clipboard(wagon_clipboard)
+ local flipped = {}
+ local numWagons = #wagon_clipboard
+ for k, v in ipairs(wagon_clipboard) do
+ local otherSide = (numWagons-k)+1
+ flipped[otherSide] = v
+ local wagon = flipped[otherSide]
+ wagon.wagon_flipped = not wagon.wagon_flipped
+ end
+ return flipped
+ end
+
+ local function is_loco(wagon_id)
+ local wagon = advtrains.wagons[wagon_id]
+ if (not wagon) then return false end
+ local wagon_proto = advtrains.wagon_prototypes[wagon.type or wagon.entity_name]
+ if wagon_proto and wagon_proto.is_locomotive then
+ return true
+ end
+ return false
+ end
+
+ -- Decide on a new 'front of train' and possibly flip the train.
+ -- Locomotive on one end = loco-hauled, that end is front;
+ -- if (advtrains.wagons[train.trainparts[1]].is_locomotive) then -- do nothing, train is already in right order
+ local numWagons = #train.trainparts
+ local backLoco = train.trainparts[numWagons]
+ backLoco = is_loco(backLoco)
+ local frontLoco = train.trainparts[1]
+ frontLoco = is_loco(frontLoco)
+ if ((backLoco) and (not frontLoco)) then
+ clipboard.wagons = flip_clipboard(clipboard.wagons)
+ --minetest.chat_send_player(user:get_player_name(), "Flipped train: Loco-hauled")
+ end
+ -- locomotives on both ends = train is push-pull / multi-unit, has no front, do nothing
+ -- no locomotives on ends = rake of wagons, front is end closest to where player copied.
+ if ((not frontLoco) and (not backLoco)) then
+
+ if (wagon.pos_in_trainparts / numWagons > 0.5) then -- towards the end of the rain
+ clipboard.wagons = flip_clipboard(clipboard.wagons)
+ --minetest.chat_send_player(user:get_player_name(), "Flipped train: Rake")
+ end
+ end
+
+ local meta = itemstack:get_meta()
+ if not meta then
+ minetest.chat_send_player(pname, attrans("The clipboard couldn't access the metadata. Copy failed."))
+ return
+ end
+ meta:set_string("clipboard", minetest.serialize(clipboard))
+ minetest.chat_send_player(user:get_player_name(), attrans("Train copied!"))
+ return itemstack
+ end
+}) \ No newline at end of file
diff --git a/advtrains/init.lua b/advtrains/init.lua
index 34e2e21..99e81ed 100644
--- a/advtrains/init.lua
+++ b/advtrains/init.lua
@@ -197,6 +197,7 @@ dofile(advtrains.modpath.."/path.lua")
dofile(advtrains.modpath.."/trainlogic.lua")
dofile(advtrains.modpath.."/trainhud.lua")
dofile(advtrains.modpath.."/trackplacer.lua")
+dofile(advtrains.modpath.."/copytool.lua")
dofile(advtrains.modpath.."/tracks.lua")
dofile(advtrains.modpath.."/occupation.lua")
dofile(advtrains.modpath.."/atc.lua")
diff --git a/advtrains/textures/advtrains_copytool.png b/advtrains/textures/advtrains_copytool.png
new file mode 100644
index 0000000..a8ea557
--- /dev/null
+++ b/advtrains/textures/advtrains_copytool.png
Binary files differ