Minified clean-room reimplementation of OmniCC, written as a series of macros, for the arena tournament.

neffi_minicc.txt

The below code is hereby released into the Public Domain. 
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
 
In other words, you can't sue me if it breaks.  ;)
 
/run _mcc={a={},A=ActionBarButtonEventsFrame.frames,U=function(f)local a,s,d=f.action if a then s,d=GetActionCooldown(a)if s>0 and d>2 then _mcc.a[f]=(s+d)-GetTime()return end end _mcc.a[f]=0 end,H=CreateFrame'Frame'}
 
/run for _,f in ipairs(_mcc.A)do f.mfsc=CreateFrame('Frame',nil,f)f.mfsc:SetFrameLevel(f:GetFrameLevel()+5)f.mfs=f.mfsc:CreateFontString()f.mfs:SetAllPoints(f)f.mfs:SetFont(UNIT_NAME_FONT,20,'OUTLINE')_mcc.a[f]=0 end
 
/run local h=_mcc.H;h:RegisterEvent'PLAYER_ENTERING_WORLD'h:RegisterEvent'ACTIONBAR_UPDATE_COOLDOWN'h:SetScript('OnEvent',function()for _,f in ipairs(_mcc.A)do _mcc.U(f)end end)hooksecurefunc('SetActionUIButton',_mcc.U)

/run function _mcc.C(t,l)if l>=60 then t:SetTextColor(1,1,1)elseif l>4 then t:SetTextColor(1,1,0)else t:SetTextColor(1,0,0)end end
 
/run _mcc.H:SetScript('OnUpdate',function(s,e)for f,l in pairs(_mcc.a)do l=l-e;_mcc.a[f]=l if l>=60 then f.mfs:SetFormattedText('%dm',floor(l/60+.5))elseif l>0 then f.mfs:SetText(ceil(l))else f.mfs:SetText''end _mcc.C(f.mfs,l)end end)