FOSS gamedev and creative worlds

Posted: **Thu Mar 16, 2017 18:30**

Nyarg wrote:500000 nodes = 30 FPS
10500 entities = 3 FPS

W.T.H. is does exactly MT render or engine when draw simple node Versus simplest entity ?
entity simple single side plate (without any material assigned in blender)

nodes are rendered into a "mesh" together. So 500k nodes can end up being only a few hundred meshes. 10k entities is 10k meshes, full stop. Plus entities need to be serviced every step to update position and calculate physics, so, they're really resource consuming to both client and server.

Posted: **Thu Mar 16, 2017 20:24**

You could abort position and physics calculation of entities and particles after a specific amount of time exceeded (e.g. 1/60) to reduce only the object and particle fps instead of the aggregate fps rate.

Posted: **Fri Mar 17, 2017 02:00**

sofar wrote:nodes are rendered into a "mesh" together. .

I am trying attach entities success but have no effect in FPS.

sofar wrote:entities need to be serviced every step .

Is there a way to block every step calculation for entities (even may be globalTable editing) ?

Hybrid Dog wrote:You could abort position and physics calculation of entities and particles .

How do I may abort that calculation ?

Posted: **Fri Mar 17, 2017 09:01**

>How do I may abort that calculation ?

edit the source code

Posted: **Sat Mar 18, 2017 13:03**

Is voxelmanip always faster than get_node? I noticed that the hopper mod uses voxelmanip just to get two neighbour nodes.

Is this really better?

Posted: **Sun Mar 19, 2017 05:58**

burli wrote:Is voxelmanip always faster than get_node? I noticed that the hopper mod uses voxelmanip just to get two neighbour nodes.

Is this really better?

yes and no. It can sometimes mean only doing a single lua-to-C call, which is likely cheaper than two get_node() calls. But if it's not performance critical, you shouldn't worry too much.

Posted: **Sun Mar 19, 2017 11:26**

[CSM] client side modding explanation
I'm following the evolving of minetest, i see this new feature.
I need to know:
For such purposes has made this class of API?
On what occasions it is best to use a client mod and in which it is supposed to use a server side mod?

Posted: **Sun Mar 19, 2017 13:40**

pandaro wrote:[CSM] client side modding explanation
I'm following the evolving of minetest, i see this new feature.
I need to know:
For such purposes has made this class of API?
On what occasions it is best to use a client mod and in which it is supposed to use a server side mod?

Do you want to see this?

Posted: **Sun Mar 19, 2017 13:42**

@pandaro:
There is a client lua api.
Client side mods are good to handle the information that you get from the server. Server side mods are used to add features and CO. to every player on a server.

Posted: **Sun Mar 19, 2017 17:17**

Next code rise error

+ Spoiler

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: minetest.register_on_punchnode( ... minetest.register_entity( modName .. ":efRB", eObjRB ) ... end )

But if I make simple stub in minetest-0.4.14\builtin\game\register.lua like

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: local function check_modname_prefix(name) ... --- local expected_prefix = core.get_current_modname() .. ":" local expected_prefix if core.get_current_modname()==nil then expected_prefix = "lumpmg" else expected_prefix = core.get_current_modname() end expected_prefix = expected_prefix .. ":" ...

All works fine and new entity creating after loadTime now, wow !

Question:
What problem do it may cause and where (if change stub with proper code) ?

*have dreaming about like above backdoor for node register same way

Posted: **Mon Mar 20, 2017 08:15**

How can I add "shift click" to move item stacks between inventories like in the chest? I can't find any reason why it works for a chest, but not in my mod

Posted: **Mon Mar 20, 2017 08:19**

burli wrote:How can I add "shift click" to move item stacks between inventories like in the chest? I can't find any reason why it works for a chest, but not in my mod

You need to set up a list ring in your formspec definition.

viewtopic.php?f=18&t=12629

Posted: **Mon Mar 20, 2017 08:29**

Linuxdirk wrote:
burli wrote:How can I add "shift click" to move item stacks between inventories like in the chest? I can't find any reason why it works for a chest, but not in my mod

You need to set up a list ring in your formspec definition.

viewtopic.php?f=18&t=12629

Ah, thanks. Will try this now

Posted: **Mon Mar 20, 2017 08:40**

Any good way to find out if player's wielded item is a tool (and not a block)?
Any good way to find out which of the registered items are tools (basically, get a list of available tools)?

Posted: **Mon Mar 20, 2017 08:51**

Is fog configurable now ?
I found something

+ Spoiler

but I am new on github and misunderstand do it means implemented or not.

Posted: **Mon Mar 20, 2017 10:03**

Mwamba wrote:
Any good way to find out if player's wielded item is a tool (and not a block)?
Any good way to find out which of the registered items are tools (basically, get a list of available tools)?

There is minetest.registered_tools which is a table of all the registered tools. You can read this table to get, well, all registered tools. You can also iterate over the table and compare to the currently wielded item.

Something like this (untested):

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: local wielditem_is_tool = function(player) local registered_tools = minetest.registered_tools local wielded_item_name = player:......... -- whatever you have to do when -- you want to get the currently -- wielded item name for name,definition in pairs(registered_tools) do if name == wielded_item_name then return true end end return false end

Call with wielditem_is_tool(player) to get either true (wielded item is a registered tool) or false (wielded item is not a registered tool).

Posted: **Mon Mar 20, 2017 10:11**

Linuxdirk wrote:There is minetest.registered_tools

Oh, great! This perfectly answers my second question. Thank you!

Still, is it possible to get player's wielded item and check for it's parameters? All I discovered up to this point is that tools have a tool_capabilities parameter, but I can't figure out how to check whether it's set...

Posted: **Mon Mar 20, 2017 10:32**

Mwamba wrote:Still, is it possible to get player's wielded item

You can use player:get_wielded_item().

Posted: **Mon Mar 20, 2017 14:30**

I don't see particle rotation property (something like angleStartByX etc or angleStaticX)
am I missing it somewhere ?

And what about glow and blend ? Where is it's description described ?

Posted: **Mon Mar 20, 2017 15:43**

Linuxdirk wrote:
Mwamba wrote:
Any good way to find out if player's wielded item is a tool (and not a block)?
Any good way to find out which of the registered items are tools (basically, get a list of available tools)?

There is minetest.registered_tools which is a table of all the registered tools. You can read this table to get, well, all registered tools. You can also iterate over the table and compare to the currently wielded item.

Something like this (untested):

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
local wielditem_is_tool = function(player) local registered_tools = minetest.registered_tools local wielded_item_name = player:......... -- whatever you have to do when -- you want to get the currently -- wielded item name for name,definition in pairs(registered_tools) do if name == wielded_item_name then return true end end return false end

Call with wielditem_is_tool(player) to get either true (wielded item is a registered tool) or false (wielded item is not a registered tool).

Iterating over the table is a waste, better to do

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: return minetest.registered_tools[wielded_item_name] ~= nil

Posted: **Mon Mar 20, 2017 16:09**

Nyarg wrote:I don't see particle rotation property (something like angleStartByX etc or angleStaticX)
am I missing it somewhere ?

No, it does not exist. Particles are either - always facing the player no matter the angle, or - always facing the player but vertical (rotating horizontal).

Nyarg wrote:And what about glow and blend ? Where is it's description described ?

Glow is implemented, blend was cut and is not implemented.

See lua_api.txt. Just search for "glow".

Posted: **Mon Mar 20, 2017 17:16**

@nyarg, on your pos on the previous page
You are registering an entity inside a callback. You should never do this.
Because you misuse the API, you get an error.
I think you rather want to add an entity into the world at this place.
minetest.add_entity()

Posted: **Mon Mar 20, 2017 18:20**

Byakuren wrote:Iterating over the table is a waste, better to do
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
return minetest.registered_tools[wielded_item_name] ~= nil

Yep. Better solution.

Posted: **Tue Mar 21, 2017 10:21**

Is is possible to profile on_timer with the builtin profiler?

Posted: **Thu Mar 23, 2017 10:58**

Byakuren wrote:Iterating over the table is a waste, better to do
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
return minetest.registered_tools[wielded_item_name] ~= nil

Oh, yeah, that's what I need. Thank you!!!

Posted: **Fri Mar 24, 2017 14:32**

how i can generate some decorations like bushes?
my mapgen.lua dosesn´t works
here is my mod

Forestos_plants.zip: (5.75 KiB) Downloaded 440 times

Posted: **Fri Mar 24, 2017 16:06**

mbb, have a look at code of other mods:
https://github.com/D00Med/moreplants/bl ... t.lua#L681
https://github.com/D00Med/moreplants/bl ... t.lua#L905

l think you did a typo in the first line of init.lua:
dofile(minetest.get_modpath("flowers") .. "/mapgen.lua")
your mapgen.lua isn't loaded…

And l guess you don't need to use the flowers table.

Posted: **Sat Mar 25, 2017 00:09**

Mwamba wrote:
Any good way to find out if player's wielded item is a tool (and not a block)?

An alternative and probably faster:

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: local stack = player:get_wielded_item() local def = stack:get_definition() if def.type == "tool" then -- do something end

Posted: **Sat Mar 25, 2017 02:33**

Get_definition is slower as it needs to go into c++

Posted: **Sat Mar 25, 2017 08:43**

How can I get the maximum and minimum heights of the world?

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