FOSS gamedev and creative worlds

Posted: **Sun Jan 01, 2017 11:41**

Because its useful, and there have been questions about this before.

the function will return number of the hp change or nil.

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: eatable=function(name) local def={ minetest.registered_items[name], minetest.registered_nodes[name], minetest.registered_craftitems[name], minetest.registered_tools[name] } for _, ob in pairs(def) do if ob~=nil then local name,change=debug.getupvalue(ob.on_use, 1) if name~=nil and name=="hp_change" then return change end end end return nil end

Posted: **Mon Feb 27, 2017 22:44**

Thanks! It is I searched for! Now I have 2 additional grouping filter in smart_inventory ;-)

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: filter.register_filter({ name = "eatable", filter_func = function(def, name) if def.on_use then local name,change=debug.getupvalue(def.on_use, 1) if name~=nil and name=="hp_change" and change > 0 then return tostring(change) end end end }) filter.register_filter({ name = "toxic", filter_func = function(def, name) if def.on_use then local name,change=debug.getupvalue(def.on_use, 1) if name~=nil and name=="hp_change" and change < 0 then return tostring(change) end end end })

A hint for you: you do not need to read minetest.registered_nodes, minetest.registered_craftitems, minetest.registered_tools. All items are in the registered_items table, with type="node","tool" or "craft" ;-)
So you can reduce your code to

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: eatable=function(name) local ob = minetest.registered_items[name] if ob and ob.on_use then local name,change=debug.getupvalue(ob.on_use, 1) if name~=nil and name=="hp_change" then return change end end return nil end

Posted: **Fri Mar 03, 2017 01:50**

Any solution which involves the debug table should only be a temporary hack.
The real problem is that Minetest makes it very hard to figure out if an item is eatable. There is no standard parsable field, this is the problem, this needs to be fixed in Minetest.

FOSS gamedev and creative worlds

[TIP] Check if items are eatable

[TIP] Check if items are eatable

Re: [TIP] Check if items are eatable

Re: [TIP] Check if items are eatable