Daikoku PA: lift mainline over the apron, rebuild both ramps
The PA ring road and the expressway mainline were both at ground level, so the ring parapet stood INSIDE the carriageway (measured -10.0 studs of vertical overlap: a wall in the middle of the road). Reference photos of the real Daikoku Futo PA show the expressway flying OVER the parking apron on pillars, with the PA at ground level and ramps climbing up to meet it. Rebuilt to match: - mainline lifted 38 studs through the junction, eased in/out (max 5.26% grade, within real expressway limits) - PA ring + apron stay at ground level; legacy PARingPillar props removed - both on/off ramps regraded over the full rise with smoothstep easing, segments overlapped 3 studs so wheels can't catch a seam, plus support pillars and edge kerbs where the deck is high Verified in-engine against built parts (tools/diag_daikoku.luau), not just source: clearance now +28.0 studs, both ramps continuous (max step 5.62, no gaps). tools/plot_daikoku.py renders the plan/section for comparison.
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--[[
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diag_bootcheck.luau -- decide facing using the BOOT/SPOILER cue, which is
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directly interpretable, and verify it survives the build.
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Findings so far:
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* gtr_r34 template: wheels -10.27, hood -6.22, boot +6.64 -> all three
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cues AGREE, nose at -Z. So wheel labels are NOT swapped.
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* bodywork "asym" gave gtr_r34 -0.37 while rx7_fc/silv_s15 were
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positive, yet all three have boot at +Z. asym is therefore a poor
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proxy (it is dominated by whichever big slab a given shell happens to
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have) and its verdicts must be discarded.
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The boot/spoiler is unambiguous: it belongs at the TAIL. On a correctly
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faced car (chassis forward = -Z) the boot must land at POSITIVE body-local
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Z. Measure that on the BUILT car, per shell, and compare to the template.
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Shells with no named boot get a fallback: the tail is the end furthest
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from the front wheels, per that shell's own wheel cue.
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]]
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local ServerScriptService = game:GetService("ServerScriptService")
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local ReplicatedStorage = game:GetService("ReplicatedStorage")
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local RunService = game:GetService("RunService")
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local out = {}
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local function log(...)
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local parts = {}
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for i = 1, select("#", ...) do
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parts[#parts + 1] = tostring((select(i, ...)))
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end
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table.insert(out, table.concat(parts, " "))
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end
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local Shared = ReplicatedStorage:FindFirstChild("Shared")
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local Cars = require(Shared.Cars)
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local Chassis = require(Shared.Chassis)
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local orig = ServerScriptService:FindFirstChild("Server", true):FindFirstChild("CarManager")
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local cm = orig:Clone()
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cm.Parent = orig.Parent
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local CarManager = require(cm)
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local TAIL = { boot = true, spoiler = true, trunk = true, taillight = true, exhaust = true, diffuser = true }
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local NOSE = { hood = true, windshield = true, bonnet = true, grille = true, headlight = true, splitter = true }
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local function cueZ(root: Instance, frame: CFrame)
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local inv = frame:Inverse()
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local tS, tN, nS, nN = 0, 0, 0, 0
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for _, p in ipairs(root:GetDescendants()) do
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if p:IsA("BasePart") then
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local nm = p.Name:lower()
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local z = (inv * p.Position).Z
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if TAIL[nm] then
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tS, tN = tS + z, tN + 1
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elseif NOSE[nm] then
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nS, nN = nS + z, nN + 1
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end
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end
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end
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return (tN > 0 and tS / tN or nil), (nN > 0 and nS / nN or nil), tN, nN
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end
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log("chassis forward = -Z, so TAIL parts must land at POSITIVE body-local Z.")
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log("")
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log(string.format("%-14s %22s %30s", "car", "TEMPLATE (tail/nose)", "BUILT (tail/nose) verdict"))
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log(string.rep("-", 74))
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for _, t in ipairs(ReplicatedStorage.CarModels:GetChildren()) do
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local id = t.Name
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local tT, tNz, tCount, nCount = cueZ(t, t:GetPivot())
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local bT, bN = nil, nil
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local car = Cars.Get(id)
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if car then
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local m = CarManager._buildForDiag(car, Chassis.tuningFor(car))
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m.Parent = workspace
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m:PivotTo(CFrame.new(0, 5010, 0))
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for _ = 1, 3 do
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RunService.Heartbeat:Wait()
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end
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local sh = m:FindFirstChild("Shell")
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if sh then
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bT, bN = cueZ(sh, m.PrimaryPart.CFrame)
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end
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m:Destroy()
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end
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local verdict
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if bT then
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verdict = bT > 0 and "CORRECT" or "*** BACKWARDS ***"
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elseif bN then
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verdict = bN < 0 and "CORRECT" or "*** BACKWARDS ***"
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else
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verdict = "no named cue - cannot judge"
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end
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log(
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string.format(
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"%-14s tail %8s nose %7s tail %8s nose %7s %s",
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id,
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tT and string.format("%+.2f", tT) or "n/a",
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tNz and string.format("%+.2f", tNz) or "n/a",
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bT and string.format("%+.2f", bT) or "n/a",
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bN and string.format("%+.2f", bN) or "n/a",
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verdict
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)
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)
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end
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cm:Destroy()
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return table.concat(out, "\n")
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