vgstation13/code/WorkInProgress/mapload/reader.dm

dmm_suite/load_map(var/dmm_file as file, var/z_offset as num)
	if(!z_offset)
		z_offset = world.maxz+1
	var/quote = ascii2text(34)
	var/tfile = file2text(dmm_file)
	var/tfile_len = length(tfile)
	var/list/grid_models[0]
	var/key_len = length(copytext(tfile,2,findtext(tfile,quote,2,0)))
	for(var/lpos=1;lpos<tfile_len;lpos=findtext(tfile,"\n",lpos,0)+1)
		var/tline = copytext(tfile,lpos,findtext(tfile,"\n",lpos,0))
		if(copytext(tline,1,2)!=quote)	break
		var/model_key = copytext(tline,2,findtext(tfile,quote,2,0))
		var/model_contents = copytext(tline,findtext(tfile,"=")+3,length(tline))
		grid_models[model_key] = model_contents
		sleep(-1)

	var/zcrd=-1
	var/ycrd=0
	var/xcrd=0
	for(var/zpos=findtext(tfile,"\n(1,1,");TRUE;zpos=findtext(tfile,"\n(1,1,",zpos+1,0))
		zcrd++
		world.maxz = max(world.maxz, zcrd+z_offset)
		ycrd=0
		var/zgrid = copytext(tfile,findtext(tfile,quote+"\n",zpos,0)+2,findtext(tfile,"\n"+quote,zpos,0)+1)
		for(var/gpos=1;gpos!=0;gpos=findtext(zgrid,"\n",gpos,0)+1)
			var/grid_line = copytext(zgrid,gpos,findtext(zgrid,"\n",gpos,0)+1)
			var/y_depth = length(zgrid)/(length(grid_line))
			if(world.maxy<y_depth)	world.maxy=y_depth
			grid_line=copytext(grid_line,1,length(grid_line))
			if(!ycrd)
				ycrd = y_depth
			else
				ycrd--
			xcrd=0
			for(var/mpos=1;mpos<=length(grid_line);mpos+=key_len)
				xcrd++
				if(world.maxx<xcrd)	world.maxx=xcrd
				var/model_key = copytext(grid_line,mpos,mpos+key_len)
				parse_grid(grid_models[model_key],xcrd,ycrd,zcrd+z_offset)

			if(gpos+length(grid_line)+1>length(zgrid))	break
			sleep(-1)

		if(findtext(tfile,quote+"}",zpos,0)+2==tfile_len)	break
		sleep(-1)


dmm_suite/proc/parse_grid(var/model as text,var/xcrd as num,var/ycrd as num,var/zcrd as num)
	set background = 1

	/*Method parse_grid()
		- Accepts a text string containing a comma separated list of type paths of the
			same construction as those contained in a .dmm file, and instantiates them.
		*/
	var/list/text_strings[0]
	for(var/index=1;findtext(model,quote);index++)
		/*Loop: Stores quoted portions of text in text_strings, and replaces them with an
			index to that list.
			- Each iteration represents one quoted section of text.
			*/
		text_strings.len=index
		text_strings[index] = copytext(model,findtext(model,quote)+1,findtext(model,quote,findtext(model,quote)+1,0))
		model = copytext(model,1,findtext(model,quote))+"~[index]"+copytext(model,findtext(model,quote,findtext(model,quote)+1,0)+1,0)
		sleep(-1)

	for(var/dpos=1;dpos!=0;dpos=findtext(model,",",dpos,0)+1)
		/*Loop: Identifies each object's data, instantiates it, and reconstitues it's fields.
			- Each iteration represents one object's data, including type path and field values.
			*/
		var/full_def = copytext(model,dpos,findtext(model,",",dpos,0))
		var/atom_def = text2path(copytext(full_def,1,findtext(full_def,"{")))

		if(ispath(atom_def, /turf/space))
			continue

		var/list/attributes[0]
		if(findtext(full_def,"{"))
			full_def = copytext(full_def,1,length(full_def))
			for(var/apos=findtext(full_def,"{")+1;apos!=0;apos=findtext(full_def,";",apos,0)+1)
				//Loop: Identifies each attribute/value pair, and stores it in attributes[].
				attributes.Add(copytext(full_def,apos,findtext(full_def,";",apos,0)))
				if(!findtext(copytext(full_def,apos,0),";"))	break
				sleep(-1)

		//Construct attributes associative list
		var/list/fields = new(0)
		for(var/index=1;index<=attributes.len;index++)
			var/trim_left = trim_text(copytext(attributes[index],1,findtext(attributes[index],"=")))
			var/trim_right = trim_text(copytext(attributes[index],findtext(attributes[index],"=")+1,0))
			//Check for string
			if(findtext(trim_right,"~"))
				var/reference_index = copytext(trim_right,findtext(trim_right,"~")+1,0)
				trim_right=text_strings[text2num(reference_index)]
			//Check for number
			else if(isnum(text2num(trim_right)))
				trim_right = text2num(trim_right)
			//Check for file
			else if(copytext(trim_right,1,2) == "'")
				trim_right = file(copytext(trim_right,2,length(trim_right)))
			fields[trim_left] = trim_right

			//End construction
		//Begin Instanciation
		var/atom/instance
		var/dmm_suite/preloader/_preloader = new(fields)
		if(ispath(atom_def,/area))
			var/turf/A = locate(xcrd,ycrd,zcrd)
			if(A.loc.name == "Space")
				instance = locate(atom_def)
				if(instance)
					instance.contents.Add(locate(xcrd,ycrd,zcrd))

		else
			//global.current_preloader = _preloader
			instance = new atom_def(locate(xcrd,ycrd,zcrd))
			if(_preloader)
				_preloader.load(instance)
			//End Instanciation
		if(!findtext(copytext(model,dpos,0),","))	break


dmm_suite/proc/trim_text(var/what as text)
	while(length(what) && findtext(what," ",1,2))
		what=copytext(what,2,0)
	while(length(what) && findtext(what," ",length(what),0))
		what=copytext(what,1,length(what))
	return what

/*
var/global/dmm_suite/preloader/current_preloader = null
atom/New()
	if(global.current_preloader)
		global.current_preloader.load(src)
	..()
*/


dmm_suite/preloader
	parent_type = /datum
	var/list/attributes


	New(list/the_attributes)
		..()
		if(!the_attributes.len)	Del()
		attributes = the_attributes


	proc/load(atom/what)
		for(var/attribute in attributes)
			what.vars[attribute] = attributes[attribute]
		Del()



/client/proc/mapload(var/dmm_map as file)
	set category = "Debug"
	set name = "LoadMap"
	set desc = "Loads a map"
	set hidden = 1
	if(src.holder)
		if(!src.mob)
			return
		if(src.holder.rank in list("Game Admin", "Game Master"))
			var/file_name = "[dmm_map]"
			var/file_extension = copytext(file_name,length(file_name)-2,0)
			if(file_extension != "dmm")
				usr << "Supplied file must be a .dmm file."
				return
			var/map_z = input(usr,"Enter variable value:" ,"Value", 123) as num
			if(map_z > (world.maxz+1))
				map_z = (world.maxz+1)

			var/dmm_suite/new_reader = new()
			new_reader.load_map(dmm_map, map_z)
			log_admin("[key_name(src.mob)] loaded a map on z:[map_z]")

		else
			alert("No")
			return
		return