Module:SpeciesLink

-- This module renders the template. -- https://hoodedhorse.com/wiki/Against_the_Storm/Template:Species_link -- -- This template #invokes SpeciesLink.renderLink(frame), below. -- -- The template requires an argument, the name of the Species to which to link. -- Optionally, the template accepts a second argument to change the size of the -- icon that accompanies the text hyperlink. The Species is passed to -- Module:SpeciesData, which is used to identify the wiki page to link to. It -- also handles some basic normalization to tolerate small mistakes in spelling, -- spacing, or punctuation. -- -- Using the data returned, this module creates an icon and the name of the -- Species, and wraps both in a link to the Species's wiki page. If no icon -- size is specified, the icon will default to a size appropriate for display -- in-line with other text. -- -- IF there is a known Species that does not have an icon (might be the case if -- the data is being updated), then a question-mark icon will take the place of -- the Species's icon. This is so that people using this template will not -- mistake a missing icon for an issue with this template and can efficienty -- troubleshoot. -- -- The icons are sized consistently by using existing wiki templates, , --, etc. The sizes of icons are not stored or known by this module. -- @module SpeciesLink local SpeciesLink = {}

-- -- Dependencies -- local SpeciesData = { ["Foxes"] = { ["pagename"] = "Foxes", ["icon"] = "fox_circle.png" },   ["Harpies"] = { ["pagename"] = "Harpies", ["icon"] = "harpy_circle.png" },   ["Humans"] = { ["pagename"] = "Humans", ["icon"] = "human_circle.png" },   ["Beavers"] = { ["pagename"] = "Beavers", ["icon"] = "beaver_circle.png" },   ["Lizards"] = { ["pagename"] = "Lizards", ["icon"] = "lizard_circle.png" } }

-- -- Constants -- -- names of the templates used to size the icons consistently local TEMPLATE_IMGSMALL = "ImgS" local TEMPLATE_IMGMED = "ImgM" local TEMPLATE_IMGLARGE = "ImgL" local TEMPLATE_IMGHUGE = "ImgH"

-- string options for icon size arguments local S_SML = "small" local S_MED = "med" local S_LRG = "large" local S_HUG = "huge"

-- filename to use if there is no known icon for a known building local REPLACEMENT_FILENAME = "Question_mark.png"

-- -- Main rendering function --

--- -- Renders an icon the name of a Species linked to a wiki page corresponding -- to the provided Species. -- -- Uses MediaWiki markup to display the name of a wiki page and an icon that has -- been uploaded to the wiki. Both must be known by Module:SpeciesData, or the -- template's behavior may be different than expected. -- @param frame a table describing the MediaWiki frame; frame['args'] is a -- table containg the template arguments; frame['args']['Species'] is the first -- argument, assigned to the key 'Species'; frame['args']['iconsize'] is the -- second argument, assigned to the key 'iconsize' -- @return a string containing the wiki markup for an icon and an internal wiki -- page link (or an error if a problem occured) function SpeciesLink.renderLink(frame) -- extract the arguments we care about from the frame local argSpeciesName = frame.args.Species local argIconsize = frame.args.iconsize -- validate that there's a Species name to use if not argSpeciesName or "" == argSpeciesName then return "SpeciesLink error: no Species given" end -- get the page name to make sure there was one local Species = SpeciesData[argSpeciesName].pagename if not Species or "" == Species then return "SpeciesLink error: " .. argSpeciesName .." not found" end -- the wiki markup for the internal link to the Species's wiki page local linkPart = "" .. Species .. "" -- store the requested size for use in a moment local size = "" -- Check the requested size against the allowed options. Expand the -- corresponding template. if S_MED == argIconsize then size = frame:expandTemplate{title=TEMPLATE_IMGMED} elseif S_LRG == argIconsize then size = frame:expandTemplate{title=TEMPLATE_IMGLARGE} elseif S_HUG == argIconsize then size = frame:expandTemplate{title=TEMPLATE_IMGHUGE} else -- default to small size if the argument wasn't valid size = frame:expandTemplate{title=TEMPLATE_IMGSMALL} end -- If the icon filename doesn't exist, we can still continue by substituting -- a question mark icon instead. local icon = SpeciesData[argSpeciesName].pagename if not icon or "" == icon then icon = REPLACEMENT_FILENAME end -- combine the size and filename to form the iconPart local iconPart = "" -- combine the file part with the link part return iconPart .. " " .. linkPart end

-- return when required into another module return SpeciesLink