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local Utils = {}
function Utils.percentCoordinates(x, y)
x = (x/100)*Config.width
y = (y/100)*Config.height
return x, y
end
function Utils.tprint(tbl, indent)
if not indent then indent = 0 end
for k, v in pairs(tbl) do
formatting = string.rep(" ", indent) .. k .. ": "
if type(v) == "table" then
print(formatting)
Utils.tprint(v, indent+1)
else
print(formatting .. v)
end
end
end
function Utils.tuple2ToIndexHash(table)
local tmp = {}
for k,v in pairs(table) do
tmp[v[1]] = k
end
return tmp
end
-- From http://lua-users.org/wiki/CopyTable
function Utils.copyTable(orig)
local orig_type = type(orig)
local copy
if orig_type == 'table' then
copy = {}
for orig_key, orig_value in next, orig, nil do
copy[Utils.copyTable(orig_key)] = Utils.copyTable(orig_value)
end
setmetatable(copy, Utils.copyTable(getmetatable(orig)))
else -- number, string, boolean, etc
copy = orig
end
return copy
end
function Utils.sortByArtistAndTitle(a, b)
if a.artist:lower() < b.artist:lower() then
return true
elseif a.artist:lower() == b.artist:lower() and a.title:lower() < b.title:lower() then
return true
else
return false
end
end
return Utils
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