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https://github.com/luanti-org/luanti.git
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Replace worldlist by generic filterlist implementation
This commit is contained in:
sapier
PilzAdam
parent
5c7ecdb7c5
commit
868f35e27a
2 changed files with 178 additions and 127 deletions
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@ -1,80 +1,105 @@
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worldlist = {}
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--------------------------------------------------------------------------------
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-- Generic implementation of a filter/sortable list --
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--------------------------------------------------------------------------------
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filterlist = {}
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--------------------------------------------------------------------------------
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function worldlist.refresh()
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worldlist.m_raw_worldlist = engine.get_worlds()
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worldlist.process()
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function filterlist.refresh(this)
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this.m_raw_list = this.m_raw_list_fct()
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filterlist.process(this)
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end
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--------------------------------------------------------------------------------
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function worldlist.init()
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worldlist.m_gamefilter = nil
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worldlist.m_sortmode = "alphabetic"
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function filterlist.create(raw_fct,compare_fct,uid_match_fct,filter_fct)
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worldlist.m_processed_worldlist = nil
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worldlist.m_raw_worldlist = engine.get_worlds()
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assert((raw_fct ~= nil) and (type(raw_fct) == "function"))
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assert((compare_fct ~= nil) and (type(compare_fct) == "function"))
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local this = {}
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this.m_raw_list_fct = raw_fct
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this.m_compare_fct = compare_fct
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this.m_filter_fct = filter_fct
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this.m_uid_match_fct = uid_match_fct
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this.m_filtercriteria = nil
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this.m_sortmode = "none"
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this.m_sort_list = {}
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worldlist.process()
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this.m_processed_list = nil
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this.m_raw_list = this.m_raw_list_fct()
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filterlist.process(this)
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return this
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end
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--------------------------------------------------------------------------------
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function worldlist.set_gamefilter(gameid)
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if gameid == worldlist.m_gamefilter then
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function filterlist.add_sort_mechanism(this,name,fct)
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this.m_sort_list[name] = fct
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end
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--------------------------------------------------------------------------------
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function filterlist.set_filtercriteria(this,criteria)
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if criteria == this.m_filtercriteria then
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return
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end
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worldlist.m_gamefilter = gameid
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worldlist.process()
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this.m_filtercriteria = criteria
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filterlist.process(this)
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end
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--------------------------------------------------------------------------------
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function worldlist.get_gamefilter()
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return worldlist.m_gamefilter
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function filterlist.get_filtercriteria(this)
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return this.m_filtercriteria
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end
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--------------------------------------------------------------------------------
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--supported sort mode "alphabetic|none"
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function worldlist.set_sortmode(mode)
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if (mode == worldlist.m_sortmode) then
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function filterlist.set_sortmode(this,mode)
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if (mode == this.m_sortmode) then
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return
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end
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worldlist.m_sortmode = mode
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worldlist.process()
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this.m_sortmode = mode
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filterlist.process(this)
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end
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--------------------------------------------------------------------------------
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function worldlist.get_list()
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return worldlist.m_processed_worldlist
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function filterlist.get_list(this)
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return this.m_processed_list
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end
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--------------------------------------------------------------------------------
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function worldlist.get_raw_list()
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return worldlist.m_raw_worldlist
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function filterlist.get_raw_list(this)
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return this.m_raw_list
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end
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--------------------------------------------------------------------------------
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function worldlist.get_raw_world(idx)
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function filterlist.get_raw_element(this,idx)
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if type(idx) ~= "number" then
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idx = tonumber(idx)
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end
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if idx ~= nil and idx > 0 and idx < #worldlist.m_raw_worldlist then
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return worldlist.m_raw_worldlist[idx]
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if idx ~= nil and idx > 0 and idx < #this.m_raw_list then
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return this.m_raw_list[idx]
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end
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return nil
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end
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--------------------------------------------------------------------------------
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function worldlist.get_engine_index(worldlistindex)
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assert(worldlist.m_processed_worldlist ~= nil)
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function filterlist.get_engine_index(this,listindex)
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assert(this.m_processed_list ~= nil)
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if worldlistindex ~= nil and worldlistindex > 0 and
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worldlistindex <= #worldlist.m_processed_worldlist then
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local entry = worldlist.m_processed_worldlist[worldlistindex]
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if listindex ~= nil and listindex > 0 and
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listindex <= #this.m_processed_list then
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local entry = this.m_processed_list[listindex]
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for i,v in ipairs(worldlist.m_raw_worldlist) do
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for i,v in ipairs(this.m_raw_list) do
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if worldlist.compare(v,entry) then
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if this.m_compare_fct(v,entry) then
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return i
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end
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end
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@ -84,16 +109,16 @@ function worldlist.get_engine_index(worldlistindex)
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end
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--------------------------------------------------------------------------------
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function worldlist.get_current_index(worldlistindex)
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assert(worldlist.m_processed_worldlist ~= nil)
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function filterlist.get_current_index(this,listindex)
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assert(this.m_processed_list ~= nil)
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if worldlistindex ~= nil and worldlistindex > 0 and
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worldlistindex <= #worldlist.m_raw_worldlist then
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local entry = worldlist.m_raw_worldlist[worldlistindex]
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if listindex ~= nil and listindex > 0 and
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listindex <= #this.m_raw_list then
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local entry = this.m_raw_list[listindex]
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for i,v in ipairs(worldlist.m_processed_worldlist) do
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for i,v in ipairs(this.m_processed_list) do
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if worldlist.compare(v,entry) then
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if this.m_compare_fct(v,entry) then
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return i
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end
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end
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@ -103,37 +128,82 @@ function worldlist.get_current_index(worldlistindex)
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end
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--------------------------------------------------------------------------------
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function worldlist.process()
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assert(worldlist.m_raw_worldlist ~= nil)
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function filterlist.process(this)
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assert(this.m_raw_list ~= nil)
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if worldlist.m_sortmode == "none" and
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worldlist.m_gamefilter == nil then
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worldlist.m_processed_worldlist = worldlist.m_raw_worldlist
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if this.m_sortmode == "none" and
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this.m_filtercriteria == nil then
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this.m_processed_list = this.m_raw_list
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return
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end
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worldlist.m_processed_worldlist = {}
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this.m_processed_list = {}
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for i,v in ipairs(worldlist.m_raw_worldlist) do
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for i,v in ipairs(this.m_raw_list) do
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if worldlist.m_gamefilter == nil or
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v.gameid == worldlist.m_gamefilter then
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table.insert(worldlist.m_processed_worldlist,v)
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if this.m_filtercriteria == nil or
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this.m_filter_fct(v,this.m_filtercriteria) then
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table.insert(this.m_processed_list,v)
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end
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end
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if worldlist.m_sortmode == "none" then
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if this.m_sortmode == "none" then
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return
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end
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if worldlist.m_sortmode == "alphabetic" then
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worldlist.sort_alphabetic()
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if this.m_sort_list[this.m_sortmode] ~= nil and
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type(this.m_sort_list[this.m_sortmode]) == "function" then
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this.m_sort_list[this.m_sortmode](this)
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end
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end
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--------------------------------------------------------------------------------
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function worldlist.compare(world1,world2)
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function filterlist.size(this)
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if this.m_processed_list == nil then
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return 0
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end
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return #this.m_processed_list
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end
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--------------------------------------------------------------------------------
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function filterlist.uid_exists_raw(this,uid)
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for i,v in ipairs(this.m_raw_list) do
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if this.m_uid_match_fct(v,uid) then
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return true
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end
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end
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return false
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end
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--------------------------------------------------------------------------------
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function filterlist.engine_index_by_uid(this, uid)
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local elementcount = 0
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local elementidx = 0
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for i,v in ipairs(this.m_raw_list) do
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if this.m_uid_match_fct(v,uid) then
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elementcount = elementcount +1
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elementidx = i
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end
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end
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-- If there are more elements than one with same name uid can't decide which
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-- one is meant. This shouldn't be possible but just for sure.
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if elementcount > 1 then
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elementidx=0
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end
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return elementidx
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end
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--------------------------------------------------------------------------------
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-- COMMON helper functions --
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--------------------------------------------------------------------------------
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--------------------------------------------------------------------------------
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function compare_worlds(world1,world2)
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if world1.path ~= world2.path then
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return false
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@ -151,50 +221,9 @@ function worldlist.compare(world1,world2)
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end
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--------------------------------------------------------------------------------
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function worldlist.size()
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if worldlist.m_processed_worldlist == nil then
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return 0
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end
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return #worldlist.m_processed_worldlist
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end
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function sort_worlds_alphabetic(this)
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--------------------------------------------------------------------------------
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function worldlist.exists(worldname)
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for i,v in ipairs(worldlist.m_raw_worldlist) do
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if v.name == worldname then
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return true
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end
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end
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return false
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end
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--------------------------------------------------------------------------------
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function worldlist.engine_index_by_name(worldname)
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local worldcount = 0
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local worldidx = 0
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for i,v in ipairs(worldlist.m_raw_worldlist) do
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if v.name == worldname then
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worldcount = worldcount +1
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worldidx = i
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end
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end
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-- If there are more worlds than one with same name we can't decide which
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-- one is meant. This shouldn't be possible but just for sure.
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if worldcount > 1 then
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worldidx=0
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end
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return worldidx
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end
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--------------------------------------------------------------------------------
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function worldlist.sort_alphabetic()
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table.sort(worldlist.m_processed_worldlist, function(a, b)
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table.sort(this.m_processed_list, function(a, b)
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local n1 = a.name
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local n2 = b.name
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local count = math.min(#n1, #n2)
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