[Mod] Carts [carts]

[PilzAdam]

Has anyone some ideas for further mesecon functions?

[sfan5]

Change Switches with Mesecons

[PilzAdam]

Change Switches with Mesecons

See Version 16.

[sfan5]

The latest Version doesn't work for me:

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

17:40:34: ERROR[main]: ========== ERROR FROM LUA ===========
17:40:34: ERROR[main]: Failed to load and run script from
17:40:34: ERROR[main]: /home/stefan/minetest/bin/../mods/minetest/carts/init.lua:
17:40:34: ERROR[main]: ...fan/minetest/bin/../mods/minetest/carts/mesecons.lua:2: attempt to index global 'mesecon' (a nil value)
17:40:34: ERROR[main]: stack traceback:
17:40:34: ERROR[main]:     ...fan/minetest/bin/../mods/minetest/carts/mesecons.lua:2: in main chunk
17:40:34: ERROR[main]:     [C]: in function 'dofile'
17:40:34: ERROR[main]:     .../stefan/minetest/bin/../mods/minetest/carts/init.lua:731: in main chunk
17:40:34: ERROR[main]: =======END OF ERROR FROM LUA ========

[PilzAdam]

The latest Version doesn't work for me:

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

17:40:34: ERROR[main]: ========== ERROR FROM LUA ===========
17:40:34: ERROR[main]: Failed to load and run script from
17:40:34: ERROR[main]: /home/stefan/minetest/bin/../mods/minetest/carts/init.lua:
17:40:34: ERROR[main]: ...fan/minetest/bin/../mods/minetest/carts/mesecons.lua:2: attempt to index global 'mesecon' (a nil value)
17:40:34: ERROR[main]: stack traceback:
17:40:34: ERROR[main]:     ...fan/minetest/bin/../mods/minetest/carts/mesecons.lua:2: in main chunk
17:40:34: ERROR[main]:     [C]: in function 'dofile'
17:40:34: ERROR[main]:     .../stefan/minetest/bin/../mods/minetest/carts/init.lua:731: in main chunk
17:40:34: ERROR[main]: =======END OF ERROR FROM LUA ========

Do you have latest mesecons installed. If it still dont work try it without mesecons and it will work.

[mrtux]

I am going to give this mod a try, it might be useful for making a timer in mesecons, as the cart can go over special mesecon rails every few seconds or so depending on the size of the rail link.
+100

[tee-jay]

Looks like a great mod.

Do you have latest mesecons installed. If it still dont work try it without mesecons and it will work.

I have the latest mesecons version from github (7568182) and have the exact same problem sfan5 has.
Yes it does work without mesecons.

[PilzAdam]

I have the latest mesecons version from github (7568182) and have the exact same problem sfan5 has.
Yes it does work without mesecons.

Maybe it helps when you add "mesecons" to depends.txt
When this dont fix it I have no idea what to do. I dont have this bug.

[Ragnarok]

What do you think about this sound:

http://speedy.sh/M2h8K/loco.wav

License: CC0

[PilzAdam]

What do you think about this sound:

http://speedy.sh/M2h8K/loco.wav

License: CC0

First of all thank you that you help me with the sound.
But this sound seems like there are "many" carts driving not just one.
So it would be realy great if you can create another sound (remember its just one little cart driving).

[mauvebic]

Suggestion: turn your cart declarations into functions so people can setup carts with different textures, possibly even nodeboxes :-)

[PilzAdam]

Suggestion: turn your cart declarations into functions so people can setup carts with different textures, possibly even nodeboxes :-)

You can not use nodeboxes for carts.
But I will have a look at it.

[Ragnarok]

I created fully synthetic simple loco sound. What do you think?

http://speedy.sh/mUvnk/loco-syntetic.wav

License: WTFPL

[PilzAdam]

I created fully synthetic simple loco sound. What do you think?

http://speedy.sh/mUvnk/loco-syntetic.wav

License: WTFPL

Thank you!

[jordan4ibanez]

this is the best thing i've ever seen

[Josh]

Nice PilzAdam! but as minetest develops we should be able to ride the carts!

[jin_xi]

hey pilz adam

really nice work. i had this idea: FAHRPLAN! would it make sense to be able to put a timetable next to a track so that a train would run automatically? like some simple format for times and "stations" (other such tables)?

[PilzAdam]

hey pilz adam

really nice work. i had this idea: FAHRPLAN! would it make sense to be able to put a timetable next to a track so that a train would run automatically? like some simple format for times and "stations" (other such tables)?

You can maybe make this with the mesecon functions that are already implmented.

[graphics boy]

When I add the cart then rightclick on it I get this:

ServerError: Lua: error running 'on_rightclick':
...v-20120606-win32\bin\..\mods\minetest\carts\init.Lua:390: attemp to call method 'is_player' (a nil value)

can somebody help?

[PilzAdam]

When I add the cart then rightclick on it I get this:

ServerError: Lua: error running 'on_rightclick':
...v-20120606-win32\bin\..\mods\minetest\carts\init.Lua:390: attemp to call method 'is_player' (a nil value)

can somebody help?

Wich Minetest version do you have?

[graphics boy]

0.4

[PilzAdam]

Wich 0.4? (please write everything that is written in the upper left corner of minetest)
Wich version of carts do you have?

[graphics boy]

Minetest-c55 0.4.dev-20120606

carts 23

[graphics boy]

version 23 of carts

[PilzAdam]

This is realy strange because in line 390 if init.lua the method is_player() is not used. Try redownload.

[Tggtt]

I have the latest mesecons version from github (7568182) and have the exact same problem sfan5 has.
Yes it does work without mesecons.

Maybe it helps when you add "mesecons" to depends.txt
When this dont fix it I have no idea what to do. I dont have this bug.

I had that problem too and adding mesecons to depends.txt of carts fixed it.

It's working great, thank you very much.


Also, does it have a box that the cart takes its contents too? I only find one that the cart drops the content, not for taking.

If it's possible, I would be able to create closed circuit tracks that carts take contents from one side and drop on the other.

[PilzAdam]

I had that problem too and adding mesecons to depends.txt of carts fixed it.

It's working great, thank you very much.

Thanks for the feedback.

Also, does it have a box that the cart takes its contents too? I only find one that the cart drops the content, not for taking.

If it's possible, I would be able to create closed circuit tracks that carts take contents from one side and drop on the other.

Good idea.
EDIT: Added.

[PilzAdam]

I have the latest mesecons version from github (7568182) and have the exact same problem sfan5 has.
Yes it does work without mesecons.

Maybe it helps when you add "mesecons" to depends.txt
When this dont fix it I have no idea what to do. I dont have this bug.

You dont have add mesecons to depends.txt with version 25.

[Tggtt]

Thanks a lot. I think you forgot to add the recipe for pickup_plate in the first post.


[EDIT] sorry, I saw it now.

I had to open the code to find it.
While reading the code for the pickup_plate, I came across your "fors" to search for the boxes and plates. I think you should try merging the "fors" because they are exactly the same, only the "if" changes. Merging them would improve performance for the same result.

[EDIT]
This is what I meant by merging the "fors". I believe it has the exact same result.

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

    --search for pickup plates and take items
    -- and
    -- search for boxes and place all items (except players) in it
    for x=-1,1 do
        local pos = {x=self.object:getpos().x+x, y=self.object:getpos().y, z=self.object:getpos().z}
        local name = minetest.env:get_node(pos).name
        if name == "carts:pickup_plate" then
            pos.x = math.floor(0.5+pos.x)
            pos.y = math.floor(0.5+pos.y)
            pos.z = math.floor(0.5+pos.z)
            local items = minetest.env:get_objects_inside_radius(pos, 1)
            for i,item in ipairs(items) do
                if not item:is_player() then
                    table.insert(self.items, item)
                elseif TRANSPORT_PLAYER then
                    table.insert(self.items, item)
                end
            end
        end
        if name == "carts:chest" and self.items ~= {} then
            local items_tmp = {}
            for i,item in ipairs(self.items) do
                if not item:is_player() then
                    item:setpos({x=math.floor(0.5+pos.x), y=math.floor(0.5+pos.y)+0.2,

z=math.floor(0.5+pos.z)})
                else
                    table.insert(items_tmp, item)
                end
            end
            self.items = items_tmp
        end
    end
    for z=-1,1 do
        local pos = {x=self.object:getpos().x, y=self.object:getpos().y, z=self.object:getpos().z+z}
        local name = minetest.env:get_node(pos).name
        if name == "carts:pickup_plate" then
            pos.x = math.floor(0.5+pos.x)
            pos.y = math.floor(0.5+pos.y)
            pos.z = math.floor(0.5+pos.z)
            local items = minetest.env:get_objects_inside_radius(pos, 1)
            for i,item in ipairs(items) do
                if not item:is_player() then
                    table.insert(self.items, item)
                elseif TRANSPORT_PLAYER then
                    table.insert(self.items, item)
                end
            end
        end
        if name == "carts:chest" and self.items ~= {} then
            local items_tmp = {}
            for i,item in ipairs(self.items) do
                if not item:is_player() then
                    item:setpos({x=math.floor(0.5+pos.x), y=math.floor(0.5+pos.y)+0.2,

z=math.floor(0.5+pos.z)})
                else
                    table.insert(items_tmp, item)
                end
            end
            self.items = items_tmp
        end
    end


However, it could cause the cart to deliver itens to a box that is too near to the plate. You may want to invert the order of the "ifs".

When the server is laggy, the "cart missing the rail" problem happens more often. I have reduced the MAX_SPEED as a work around.

[cornernote]

Mine would stop if i made a stair-like slope into my mine. I got it working really nicely (havent seen it crash) with a really small change:

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

        -- downhill
        local vel = self.object:getvelocity()
        vel.y = -3*MAX_SPEED -- used to be -2*MAX_SPEED


edit: no it still crashes sometimes