Module:BuildingLink

--- -- Renders the template -- -- Takes an argument, the name of the building. Optionally, accepts a second -- argument, "med" or "large" or "huge" to render an icon when the link is -- used outside of in-line with text. ---

local BuildingLink = {}

local BuildingData = require("Module:BuildingData") -- lookup table for buildings

--- -- Constants --- local TEMPLATE_IMGSMALL = "ImgS" local TEMPLATE_IMGMED = "ImgM" local TEMPLATE_IMGLARGE = "ImgL" local TEMPLATE_IMGHUGE = "ImgH"

local REPLACEMENT_FILENAME = "Question_mark.png"

--- -- Main rendering function -- uses ResourceData lookup function, parses the result and handles errors -- with default values, then assembles a final string to return to the wiki --- function BuildingLink.renderLink(frame) local argBuildingName = frame.args.building local argBuildingIconSize = frame.args.iconsize if not argBuildingName then return "Building_Link Error: no building given" end -- get the data about the building and then adopt the provided name -- in case we need to look it up again local tableData = BuildingData.getData(argBuildingName) if not tableData then return "Building_Link Error: " .. argBuildingName .." not found" end local strPageName = tableData.page -- if looking up the provided resource name returned no page, then render an error if not strPageName then return "Building_Link Error: " .. argBuildingName .." not found" end

-- if the icon filename didn't exist, then show a default but subtle question mark icon instead -- this will help people with troubleshooting, instead of just showing no icon then editors -- wonder what went wrong local strIconFilename = tableData.iconfile or REPLACEMENT_FILENAME -- use the established templates for image sizes, with the default being -- no icon for buildings local switchIconSize = { ["med"] = frame:expandTemplate{title=TEMPLATE_IMGMED}, ["large"] = frame:expandTemplate{title=TEMPLATE_IMGLARGE}, ["huge"] = frame:expandTemplate{title=TEMPLATE_IMGHUGE} }	-- if it's not in the switch, then skip the file part and just return the link local strIconSize = switchIconSize[argBuildingIconSize] if not strIconSize then return "" .. strPageName .. "" end -- combine the string parts to return to the page local strFilePart = string.format("", strIconFilename, strIconSize, strPageName, strPageName, strPageName) -- combine the file part with the link part return strFilePart .. " " .. strPageName .. "" end

return BuildingLink