There's a bounty for this right? i spent nearly two full days at this

code/modules/buildmode/submodes/advanced.dm

@@ -17,7 +17,7 @@
 	to_chat(c, "<span class='notice'>***********************************************************</span>")
 
 /datum/buildmode_mode/advanced/change_settings(client/c)
-	var/target_path = input(c, "Enter typepath:", "Typepath", "/obj/structure/closet")
+	var/target_path = tgui_input_text(c, "Enter typepath:", "Typepath", "/obj/structure/closet")
 	objholder = text2path(target_path)
 	if(!ispath(objholder))
 		objholder = pick_closest_path(target_path)

code/modules/buildmode/submodes/area_edit.dm

@@ -28,10 +28,10 @@
 	to_chat(c, "<span class='notice'>***********************************************************</span>")
 
 /datum/buildmode_mode/area_edit/change_settings(client/c)
-	var/target_path = input(c, "Enter typepath:", "Typepath", "/area")
+	var/target_path = tgui_input_text(c, "Enter typepath:", "Typepath", "/area")
 	var/areatype = text2path(target_path)
 	if(ispath(areatype,/area))
-		var/areaname = input(c, "Enter area name:", "Area name", "Area")
+		var/areaname = tgui_input_text(c, "Enter area name:", "Area name", "Area")
 		if(!areaname || !length(areaname))
 			return
 		storedarea = new areatype

code/modules/buildmode/submodes/boom.dm

@@ -14,19 +14,19 @@
 	to_chat(c, "<span class='notice'>***********************************************************</span>")
 
 /datum/buildmode_mode/boom/change_settings(client/c)
-	devastation = input(c, "Range of total devastation. -1 to none", text("Input")) as num|null
+	devastation = tgui_input_num(c, "Range of total devastation. -1 to none", text("Input"))
 	if(devastation == null)
 		devastation = -1
-	heavy = input(c, "Range of heavy impact. -1 to none", text("Input")) as num|null
+	heavy = tgui_input_num(c, "Range of heavy impact. -1 to none", text("Input"))
 	if(heavy == null)
 		heavy = -1
-	light = input(c, "Range of light impact. -1 to none", text("Input")) as num|null
+	light = tgui_input_num(c, "Range of light impact. -1 to none", text("Input"))
 	if(light == null)
 		light = -1
-	flash = input(c, "Range of flash. -1 to none", text("Input")) as num|null
+	flash = tgui_input_num(c, "Range of flash. -1 to none", text("Input"))
 	if(flash == null)
 		flash = -1
-	flames = input(c, "Range of flames. -1 to none", text("Input")) as num|null
+	flames = tgui_input_num(c, "Range of flames. -1 to none", text("Input"))
 	if(flames == null)
 		flames = -1
 

code/modules/buildmode/submodes/fill.dm

@@ -12,7 +12,7 @@
 	to_chat(c, "<span class='notice'>***********************************************************</span>")
 
 /datum/buildmode_mode/fill/change_settings(client/c)
-	var/target_path = input(c, "Enter typepath:" ,"Typepath","/obj/structure/closet")
+	var/target_path = tgui_input_text(c, "Enter typepath:" ,"Typepath","/obj/structure/closet")
 	objholder = text2path(target_path)
 	if(!ispath(objholder))
 		objholder = pick_closest_path(target_path)

code/modules/buildmode/submodes/mapgen.dm

@@ -16,7 +16,7 @@
 	for(var/path in gen_paths)
 		var/datum/mapGenerator/MP = path
 		options[initial(MP.buildmode_name)] = path
-	var/type = input(c,"Select Generator Type","Type") as null|anything in options
+	var/type = tgui_input_list(c,"Select Generator Type","Type", options)
 	if(!type)
 		return
 

code/modules/buildmode/submodes/variable_edit.dm

@@ -22,8 +22,8 @@
 	valueholder = null
 
 /datum/buildmode_mode/varedit/change_settings(client/c)
-	varholder = input(c, "Enter variable name:" ,"Name", "name")
-	
+	varholder = tgui_input_text(c, "Enter variable name:" ,"Name", "name")
+
 	if(!vv_varname_lockcheck(varholder))
 		return