Eval IIDX Grade

LoadFont("Common Large") .. {
                Name = "IIDXGrade",
                InitCommand = function(self)
                    self:xy(frameWidth + frameX - 18, frameY - 152)
                    self:zoom(0.45)
                    self:halign(1)
                    self:queuecommand("Set")
                    self:maxwidth(capWideScale(125, 300))
                end,
                BeginCommand = function(self) self:queuecommand("Set") end,
                ScoreChangedMessageCommand = function(self) self:queuecommand("Set") end,
                SetCommand = function(self)
                -- force custom window and rescore replay
                unloadCustomWindowConfig()
                loadCurrentCustomWindowConfig()      -- pick up exscore config
                MESSAGEMAN:Broadcast("RecalculateGraphs", {judge=GetTimingDifficulty()})

                -- pull last replay snapshot
                local replay   = REPLAYS:GetActiveReplay()
                replay:LoadAllData()
                local snap     = replay:GetLastReplaySnapshot()
                local j        = snap:GetJudgments()

                -- EX = PGREAT*2 + GREAT*1
                local w1, w2 = j.W1, j.W2
                local ex     = w1*2 + w2

                -- total taps = sum of all judgments
                local taps = j.W1 + j.W2 + j.W3 + j.W4 + j.W5 + j.Miss

                -- MAX = taps * 2
                local max   = taps * 2
                local ratio = ex / max

                -- gradez
                local txt
                local bands = {
                { name="MAX", pct=9/9 },
                { name="AAA", pct=8/9 },
                { name="AA",  pct=7/9 },
                { name="A",   pct=6/9 },
                { name="B",   pct=5/9 },
                { name="C",   pct=4/9 },
                { name="D",   pct=3/9 },
                { name="E",   pct=2/9 },
                }

                local thr = {}
                for i, band in ipairs(bands) do
                thr[i] = math.ceil(max * band.pct)
                end

                if ex == max then
                txt = "MAX"
                else
                for i = 2, #bands do
                    if ex >= thr[i] then
                    -- compare distance above the lower‐band threshold vs.
                    -- distance below the higher‐band threshold
                    local up   = thr[i-1] - ex -- towards the higher band
                    local down = ex - thr[i] -- above this band’s floor
                    if up <= down then
                        -- closer to the top
                        txt = string.format("%s-%d", bands[i-1].name, up)
                    else
                        -- closer to the bottom
                        txt = string.format("%s+%d", bands[i].name, down)
                    end
                    break
                    end
                end
                if not txt then txt = "F" end
                end

                -- display & color
                self:settext(txt)
                local c
                    if txt == "MAX" then
                    c = color("0.933,0.933,0.933,1")
                    elseif txt:match("^MAX%-") then
                    c = color("0.400,0.800,1.000,1")
                    elseif txt:match("^AAA%+") then
                    c = color("0.933,0.667,0.000,1")
                    elseif txt:match("^AAA%-") then
                    c = color("0.400,0.800,0.400,1")
                    elseif txt:match("^AA%+") then
                    c = color("0.400,0.800,0.400,1")
                    elseif txt:match("^AA%-") then
                    c = color("0.855,0.341,0.341,1")
                    elseif txt:match("^A[+%-]") then
                    c = color("0.855,0.341,0.341,1")
                    elseif txt:match("^B") then
                    c = color("0.357,0.471,0.733,1")
                    elseif txt:match("^C") then
                    c = color("0.788,0.482,1.000,1")
                    elseif txt:match("^D") then
                    c = color("0.549,0.384,0.224,1")
                    elseif txt == "F" then
                    c = color("0.804,0.804,0.804,1")
                    else
                    c = color("1,1,1,1")
                    end
                    self:diffuse(c)
                    end,
                },