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https://github.com/VOREStation/VOREStation.git
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Add bapi-dmm to reduce startup time by... a lot (#16148)
* Add bapi-dmm, a rust maploader that goes BRRRRRRR * A few more maps switched away from file paths * Update to include 48f4879d8704cb057a (better path error handling)
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ShadowLarkens
@@ -1,332 +0,0 @@
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///////////////////////////////////////////////////////////////
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//SS13 Optimized Map loader
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//////////////////////////////////////////////////////////////
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//global datum that will preload variables on atoms instanciation
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var/global/dmm_suite/preloader/_preloader = null
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/**
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* Construct the model map and control the loading process
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*
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* WORKING :
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*
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* 1) Makes an associative mapping of model_keys with model
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* e.g aa = /turf/unsimulated/wall{icon_state = "rock"}
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* 2) Read the map line by line, parsing the result (using parse_grid)
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*
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*/
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/dmm_suite/load_map(var/dmm_file as file, var/z_offset as num)
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if(!z_offset)//what z_level we are creating the map on
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z_offset = world.maxz+1
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var/quote = ascii2text(34)
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var/tfile = file2text(dmm_file)//the map file we're creating
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var/tfile_len = length(tfile)
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var/lpos = 1 // the models definition index
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///////////////////////////////////////////////////////////////////////////////////////
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//first let's map model keys (e.g "aa") to their contents (e.g /turf/space{variables})
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///////////////////////////////////////////////////////////////////////////////////////
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var/list/grid_models = list()
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var/key_len = length(copytext(tfile,2,findtext(tfile,quote,2,0)))//the length of the model key (e.g "aa" or "aba")
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//proceed line by line
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for(lpos=1; lpos<tfile_len; lpos=findtext(tfile,"\n",lpos,0)+1)
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var/tline = copytext(tfile,lpos,findtext(tfile,"\n",lpos,0))
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if(copytext(tline,1,2) != quote)//we reached the map "layout"
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break
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var/model_key = copytext(tline,2,2+key_len)
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var/model_contents = copytext(tline,findtext(tfile,"=")+3,length(tline))
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grid_models[model_key] = model_contents
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sleep(-1)
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///////////////////////////////////////////////////////////////////////////////////////
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//now let's fill the map with turf and objects using the constructed model map
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///////////////////////////////////////////////////////////////////////////////////////
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//position of the currently processed square
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var/zcrd=-1
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var/ycrd=0
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var/xcrd=0
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for(var/zpos=findtext(tfile,"\n(1,1,",lpos,0);zpos!=0;zpos=findtext(tfile,"\n(1,1,",zpos+1,0)) //in case there's several maps to load
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zcrd++
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world.maxz = max(world.maxz, zcrd+z_offset)//create a new z_level if needed
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var/zgrid = copytext(tfile,findtext(tfile,quote+"\n",zpos,0)+2,findtext(tfile,"\n"+quote,zpos,0)+1) //copy the whole map grid
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var/z_depth = length(zgrid)
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//if exceeding the world max x or y, increase it
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var/x_depth = length(copytext(zgrid,1,findtext(zgrid,"\n",2,0)))
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if(world.maxx<x_depth)
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world.maxx=x_depth
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var/y_depth = z_depth / (x_depth+1)//x_depth + 1 because we're counting the '\n' characters in z_depth
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if(world.maxy<y_depth)
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world.maxy=y_depth
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//then proceed it line by line, starting from top
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ycrd = y_depth
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for(var/gpos=1;gpos!=0;gpos=findtext(zgrid,"\n",gpos,0)+1)
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var/grid_line = copytext(zgrid,gpos,findtext(zgrid,"\n",gpos,0))
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//fill the current square using the model map
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xcrd=0
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for(var/mpos=1;mpos<=x_depth;mpos+=key_len)
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xcrd++
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var/model_key = copytext(grid_line,mpos,mpos+key_len)
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parse_grid(grid_models[model_key],xcrd,ycrd,zcrd+z_offset)
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//reached end of current map
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if(gpos+x_depth+1>z_depth)
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break
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ycrd--
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sleep(-1)
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//reached End Of File
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if(findtext(tfile,quote+"}",zpos,0)+2==tfile_len)
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break
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sleep(-1)
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/**
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* Fill a given tile with its area/turf/objects/mobs
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* Variable model is one full map line (e.g /turf/unsimulated/wall{icon_state = "rock"},/area/mine/explored)
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*
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* WORKING :
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*
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* 1) Read the model string, member by member (delimiter is ',')
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*
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* 2) Get the path of the atom and store it into a list
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*
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* 3) a) Check if the member has variables (text within '{' and '}')
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*
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* 3) b) Construct an associative list with found variables, if any (the atom index in members is the same as its variables in members_attributes)
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*
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* 4) Instanciates the atom with its variables
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*
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*/
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/dmm_suite/proc/parse_grid(var/model as text,var/xcrd as num,var/ycrd as num,var/zcrd as num)
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/*Method parse_grid()
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- Accepts a text string containing a comma separated list of type paths of the
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same construction as those contained in a .dmm file, and instantiates them.
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*/
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var/list/members = list()//will contain all members (paths) in model (in our example : /turf/unsimulated/wall and /area/mine/explored)
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var/list/members_attributes = list()//will contain lists filled with corresponding variables, if any (in our example : list(icon_state = "rock") and list())
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/////////////////////////////////////////////////////////
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//Constructing members and corresponding variables lists
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////////////////////////////////////////////////////////
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var/index=1
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var/old_position = 1
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var/dpos
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do
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//finding next member (e.g /turf/unsimulated/wall{icon_state = "rock"} or /area/mine/explored)
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dpos= find_next_delimiter_position(model,old_position,",","{","}")//find next delimiter (comma here) that's not within {...}
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var/full_def = copytext(model,old_position,dpos)//full definition, e.g : /obj/foo/bar{variables=derp}
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var/atom_def = text2path(copytext(full_def,1,findtext(full_def,"{")))//path definition, e.g /obj/foo/bar
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members.Add(atom_def)
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old_position = dpos + 1
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//transform the variables in text format into a list (e.g {var1="derp"; var2; var3=7} => list(var1="derp", var2, var3=7))
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var/list/fields = list()
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var/variables_start = findtext(full_def,"{")
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if(variables_start)//if there's any variable
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full_def = copytext(full_def,variables_start+1,length(full_def))//removing the last '}'
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fields = text2list(full_def,";")
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//then fill the members_attributes list with the corresponding variables
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members_attributes.len++
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members_attributes[index++] = fields
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sleep(-1)
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while(dpos != 0)
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////////////////
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//Instanciation
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////////////////
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//The next part of the code assumes there's ALWAYS an /area AND a /turf on a given tile
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//in case of multiples turfs on one tile,
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//will contains the images of all underlying turfs, to simulate the DMM multiple tiles piling
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var/list/turfs_underlays = list()
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//first instance the /area and remove it from the members list
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index = members.len
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var/atom/instance
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_preloader = new(members_attributes[index])//preloader for assigning set variables on atom creation
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instance = locate(members[index])
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instance.contents.Add(locate(xcrd,ycrd,zcrd))
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if(_preloader && instance)
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_preloader.load(instance)
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members.Remove(members[index])
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//then instance the /turf and, if multiple tiles are presents, simulates the DMM underlays piling effect
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var/first_turf_index = 1
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while(!ispath(members[first_turf_index],/turf)) //find first /turf object in members
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first_turf_index++
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//instanciate the first /turf
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var/turf/T = instance_atom(members[first_turf_index],members_attributes[first_turf_index],xcrd,ycrd,zcrd)
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//if others /turf are presents, simulates the underlays piling effect
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index = first_turf_index + 1
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while(index <= members.len)
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turfs_underlays.Insert(1,image(T.icon,null,T.icon_state,T.layer,T.dir))//add the current turf image to the underlays list
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var/turf/UT = instance_atom(members[index],members_attributes[index],xcrd,ycrd,zcrd)//instance new turf
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add_underlying_turf(UT,T,turfs_underlays)//simulates the DMM piling effect
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T = UT
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index++
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//finally instance all remainings objects/mobs
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for(index=1,index < first_turf_index,index++)
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instance_atom(members[index],members_attributes[index],xcrd,ycrd,zcrd)
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////////////////
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//Helpers procs
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////////////////
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//Instance an atom at (x,y,z) and gives it the variables in attributes
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/dmm_suite/proc/instance_atom(var/path,var/list/attributes, var/x, var/y, var/z)
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var/atom/instance
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_preloader = new(attributes, path)
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instance = new path (locate(x,y,z))//first preloader pass
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if(_preloader && instance)//second preloader pass, for those atoms that don't ..() in New()
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_preloader.load(instance)
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return instance
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//text trimming (both directions) helper proc
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//optionally removes quotes before and after the text (for variable name)
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/dmm_suite/proc/trim_text(var/what as text,var/trim_quotes=0)
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while(length(what) && (findtext(what," ",1,2)))
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what=copytext(what,2,0)
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while(length(what) && (findtext(what," ",length(what),0)))
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what=copytext(what,1,length(what))
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if(trim_quotes)
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while(length(what) && (findtext(what,quote,1,2)))
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what=copytext(what,2,0)
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while(length(what) && (findtext(what,quote,length(what),0)))
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what=copytext(what,1,length(what))
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return what
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//find the position of the next delimiter,skipping whatever is comprised between opening_escape and closing_escape
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//returns 0 if reached the last delimiter
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/dmm_suite/proc/find_next_delimiter_position(var/text as text,var/initial_position as num, var/delimiter=",",var/opening_escape=quote,var/closing_escape=quote)
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var/position = initial_position
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var/next_delimiter = findtext(text,delimiter,position,0)
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var/next_opening = findtext(text,opening_escape,position,0)
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while((next_opening != 0) && (next_opening < next_delimiter))
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position = findtext(text,closing_escape,next_opening + 1,0)+1
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next_delimiter = findtext(text,delimiter,position,0)
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next_opening = findtext(text,opening_escape,position,0)
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return next_delimiter
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//build a list from variables in text form (e.g {var1="derp"; var2; var3=7} => list(var1="derp", var2, var3=7))
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//return the filled list
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/dmm_suite/proc/text2list(var/text as text,var/delimiter=",")
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var/list/to_return = list()
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var/position
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var/old_position = 1
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do
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//find next delimiter that is not within "..."
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position = find_next_delimiter_position(text,old_position,delimiter)
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//check if this is a simple variable (as in list(var1, var2)) or an associative one (as in list(var1="foo",var2=7))
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var/equal_position = findtext(text,"=",old_position, position)
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var/trim_left = trim_text(copytext(text,old_position,(equal_position ? equal_position : position)),1)//the name of the variable, must trim quotes to build a BYOND compliant associatives list
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old_position = position + 1
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if(equal_position)//associative var, so do the association
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var/trim_right = trim_text(copytext(text,equal_position+1,position))//the content of the variable
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//Check for string
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if(findtext(trim_right,quote,1,2))
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trim_right = copytext(trim_right,2,findtext(trim_right,quote,3,0))
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//Check for number
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else if(isnum(text2num(trim_right)))
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trim_right = text2num(trim_right)
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//Check for null
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else if(trim_right == "null")
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trim_right = null
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//Check for list
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else if(copytext(trim_right,1,5) == "list")
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trim_right = text2list(copytext(trim_right,6,length(trim_right)))
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//Check for file
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else if(copytext(trim_right,1,2) == "'")
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trim_right = file(copytext(trim_right,2,length(trim_right)))
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to_return[trim_left] = trim_right
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else//simple var
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to_return[trim_left] = null
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while(position != 0)
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return to_return
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//simulates the DM multiple turfs on one tile underlaying
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/dmm_suite/proc/add_underlying_turf(var/turf/placed,var/turf/underturf, var/list/turfs_underlays)
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if(underturf.density)
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placed.density = TRUE
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if(underturf.opacity)
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placed.opacity = 1
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placed.underlays += turfs_underlays
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//atom creation method that preloads variables at creation
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/atom/New()
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if(_preloader && (src.type == _preloader.target_path))//in case the instanciated atom is creating other atoms in New()
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_preloader.load(src)
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. = ..()
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//////////////////
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//Preloader datum
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//////////////////
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/dmm_suite/preloader
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parent_type = /datum
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var/list/attributes
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var/target_path
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/dmm_suite/preloader/New(var/list/the_attributes, var/path)
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.=..()
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if(!the_attributes.len)
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Del()
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return
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attributes = the_attributes
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target_path = path
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/dmm_suite/preloader/proc/load(atom/what)
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for(var/attribute in attributes)
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what.vars[attribute] = attributes[attribute]
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Del()
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