diff --git a/FS25_ADSmartPickup/adFields.lua b/FS25_ADSmartPickup/adFields.lua
new file mode 100644
index 0000000..dff1bc1
--- /dev/null
+++ b/FS25_ADSmartPickup/adFields.lua
@@ -0,0 +1,223 @@
+-- AD Fields
+-- Gårdens marker set fra spillet: ejede marker, prøvepunkter i marken, slåafgrøde og klar-andel
+-- (density maps, samme metode som Arbejdsseddel — field.fieldState er en frossen NPC-plan og bruges
+-- ikke), markens F-markør (AD-markør "F109") og siloer ved marken. Én mark scannes pr. kald.
+
+ADFields = {}
+
+ADFields.FIELD_SILO_DISTANCE = 150
+ADFields.MARKER_MAX_DISTANCE = 400
+ADFields.cache = {}
+ADFields.order = {}
+ADFields.scanIndex = 0
+ADFields.mowable = nil
+
+function ADFields.parseMarkerName(name)
+    if type(name) ~= "string" then return nil end
+    local digits = string.match(name, "^%s*[Ff]%s*(%d+)%s*$")
+    return digits ~= nil and tonumber(digits) or nil
+end
+
+-- MOWER: frugt -> skår; TEDDER: skår -> DRY…-skår. Kun kæder der ender i DRY… er slåafgrøder.
+function ADFields.buildMowable(mowerConverter, tedderConverter, fillTypeName)
+    local result = {}
+    for fruitIndex, data in pairs(mowerConverter or {}) do
+        local windrow = data.fillTypeIndex or data.targetFillTypeIndex
+        local tedded = windrow ~= nil and tedderConverter ~= nil and tedderConverter[windrow] or nil
+        local hay = tedded ~= nil and (tedded.targetFillTypeIndex or tedded.fillTypeIndex) or nil
+        local hayName = hay ~= nil and fillTypeName(hay) or nil
+        if hay ~= nil and hay ~= windrow and type(hayName) == "string" and string.sub(hayName, 1, 3) == "DRY" then
+            result[fruitIndex] = {windrow = windrow, hay = hay}
+        end
+    end
+    return result
+end
+
+function ADFields.getMowable()
+    if ADFields.mowable ~= nil then return ADFields.mowable end
+    local ok, result = pcall(function()
+        local mower = g_fruitTypeManager:getConverterDataByName("MOWER")
+        local tedder = g_fillTypeManager:getConverterDataByName("TEDDER")
+        return ADFields.buildMowable(mower, tedder, function(index) return g_fillTypeManager:getFillTypeNameByIndex(index) end)
+    end)
+    ADFields.mowable = ok and result or {}
+    if not ok then
+        Logging.warning("ADSmartPickup: slåafgrøder kunne ikke læses: %s", tostring(result))
+    end
+    return ADFields.mowable
+end
+
+local function fieldOwner(field)
+    local farmland = field.farmland or (field.getFarmland ~= nil and field:getFarmland()) or nil
+    if farmland == nil then return nil end
+    if farmland.id ~= nil and g_farmlandManager ~= nil and g_farmlandManager.getFarmlandOwner ~= nil then
+        return g_farmlandManager:getFarmlandOwner(farmland.id)
+    end
+    return farmland.farmId
+end
+
+local function isOnField(x, z)
+    local y = getTerrainHeightAtWorldPos(g_currentMission.terrainRootNode, x, 1, z)
+    return FSDensityMapUtil.getFieldDataAtWorldPosition(x, y, z) and true or false
+end
+
+-- Centroid + halvvejs mod op til 8 hjørner; kun punkter der stadig er mark (bygninger fjerner areal).
+local function samplePoints(field)
+    local verts = {}
+    for _, node in ipairs(field.polygonPoints or {}) do
+        if type(node) == "number" then
+            local x, _, z = getWorldTranslation(node)
+            table.insert(verts, {x = x, z = z})
+        end
+    end
+    local cx, cz = field.posX, field.posZ
+    if (cx == nil or cz == nil) and #verts > 0 then
+        cx, cz = 0, 0
+        for _, v in ipairs(verts) do cx, cz = cx + v.x, cz + v.z end
+        cx, cz = cx / #verts, cz / #verts
+    end
+    if cx == nil then return {}, verts end
+    local candidates = {{x = cx, z = cz}}
+    local step = math.max(1, math.floor(#verts / 8))
+    for index = 1, #verts, step do
+        table.insert(candidates, {x = (cx + verts[index].x) / 2, z = (cz + verts[index].z) / 2})
+    end
+    local points = {}
+    for _, p in ipairs(candidates) do
+        local ok, onField = pcall(isOnField, p.x, p.z)
+        if ok and onField then table.insert(points, p) end
+    end
+    return points, verts
+end
+
+local function fruitAt(points)
+    local votes, best, bestVotes = {}, nil, 0
+    for _, p in ipairs(points) do
+        local ok, index = pcall(FSDensityMapUtil.getFruitTypeIndexAtWorldPos, p.x, p.z)
+        if ok and type(index) == "number" and index > 0 then
+            votes[index] = (votes[index] or 0) + 1
+            if votes[index] > bestVotes then best, bestVotes = index, votes[index] end
+        end
+    end
+    return best
+end
+
+-- Andel af prøvefladen i høstvinduet (samme kald som Arbejdsseddel: any = true,true; klar = false,false).
+local function readyRatio(fruitIndex, points)
+    local anySum, readySum = 0, 0
+    for _, p in ipairs(points) do
+        local okA, _, anyPixels = pcall(FSDensityMapUtil.getFruitArea, fruitIndex, p.x - 2, p.z - 2, p.x + 2, p.z, p.x, p.z + 2, true, true)
+        if okA and anyPixels then anySum = anySum + anyPixels end
+        local okR, _, readyPixels = pcall(FSDensityMapUtil.getFruitArea, fruitIndex, p.x - 2, p.z - 2, p.x + 2, p.z, p.x, p.z + 2, false, false)
+        if okR and readyPixels then readySum = readySum + readyPixels end
+    end
+    return anySum > 0 and readySum / anySum or 0
+end
+
+local function findMarker(adEnv, fieldId, x, z)
+    local best, bestDistance = nil, math.huge
+    for _, marker in pairs(adEnv.ADGraphManager:getMapMarkers()) do
+        if ADFields.parseMarkerName(marker.name) == fieldId then
+            local wayPoint = adEnv.ADGraphManager:getWayPointById(marker.id)
+            if wayPoint ~= nil then
+                local distance = math.sqrt((wayPoint.x - x) ^ 2 + (wayPoint.z - z) ^ 2)
+                if distance < bestDistance then best, bestDistance = marker, distance end
+            end
+        end
+    end
+    if best ~= nil and bestDistance <= ADFields.MARKER_MAX_DISTANCE then
+        return best, bestDistance
+    end
+    return nil, best ~= nil and bestDistance or nil
+end
+
+local function scanField(adEnv, field, fieldId)
+    local points, verts = samplePoints(field)
+    local info = {id = fieldId, field = field, points = points, verts = verts, mowable = false, readyRatio = 0}
+    info.x, info.z = field.posX, field.posZ
+    if (info.x == nil or info.z == nil) and points[1] ~= nil then info.x, info.z = points[1].x, points[1].z end
+    info.fruitIndex = #points > 0 and fruitAt(points) or nil
+    local mowable = info.fruitIndex ~= nil and ADFields.getMowable()[info.fruitIndex] or nil
+    if info.fruitIndex ~= nil then
+        local fruit = g_fruitTypeManager:getFruitTypeByIndex(info.fruitIndex)
+        local fillType = fruit ~= nil and fruit.fillType or nil
+        info.cropTitle = fillType ~= nil and fillType.title or (fruit ~= nil and fruit.name) or "?"
+    end
+    if mowable ~= nil then
+        info.mowable, info.windrow, info.hay = true, mowable.windrow, mowable.hay
+        info.readyRatio = readyRatio(info.fruitIndex, points)
+    end
+    if info.x ~= nil then
+        local marker, distance = findMarker(adEnv, fieldId, info.x, info.z)
+        info.markerId = marker ~= nil and marker.id or nil
+        info.markerName = marker ~= nil and marker.name or nil
+        info.markerDistance = distance
+    end
+    return info
+end
+
+local function ownedFields(farmId)
+    local result = {}
+    local all = g_fieldManager ~= nil and (g_fieldManager:getFields() or g_fieldManager.fields) or {}
+    for _, field in pairs(all) do
+        local id = field.getId ~= nil and field:getId() or field.fieldId
+        if id ~= nil and fieldOwner(field) == farmId then
+            table.insert(result, {id = id, field = field})
+        end
+    end
+    table.sort(result, function(a, b) return a.id < b.id end)
+    return result
+end
+
+-- Scanner næste mark (round-robin) og returnerer alle kendte. Kaldes hvert sekund af job-løkken.
+function ADFields.scanNext(adEnv, farmId)
+    local owned = ownedFields(farmId)
+    local ids = {}
+    for _, entry in ipairs(owned) do ids[entry.id] = true end
+    for id in pairs(ADFields.cache) do
+        if not ids[id] then ADFields.cache[id] = nil end
+    end
+    ADFields.order = owned
+    if #owned == 0 then return end
+    ADFields.scanIndex = ADFields.scanIndex % #owned + 1
+    local entry = owned[ADFields.scanIndex]
+    local ok, info = pcall(scanField, adEnv, entry.field, entry.id)
+    if ok then
+        ADFields.cache[entry.id] = info
+    else
+        Logging.warning("ADSmartPickup: F%s kunne ikke scannes: %s", tostring(entry.id), tostring(info))
+    end
+end
+
+function ADFields.list()
+    local infos = {}
+    for _, entry in ipairs(ADFields.order) do
+        local info = ADFields.cache[entry.id]
+        if info ~= nil then table.insert(infos, info) end
+    end
+    return infos
+end
+
+function ADFields.getInfo(id)
+    return ADFields.cache[id]
+end
+
+-- Siloer tæt på markens polygon (eller centrum): mellemlagre, som et udkørselsflow skal tømme hjem.
+function ADFields.fieldSilos(adEnv, farmId, info)
+    local result = {}
+    if ADBuildings == nil or info == nil or info.x == nil then return result end
+    local anchors = #info.verts > 0 and info.verts or {{x = info.x, z = info.z}}
+    for _, building in ipairs(ADBuildings.list(adEnv, farmId)) do
+        local node = building.kind == "silo" and building.placeable ~= nil and building.placeable.rootNode or nil
+        if node ~= nil then
+            local bx, _, bz = getWorldTranslation(node)
+            for _, anchor in ipairs(anchors) do
+                if (anchor.x - bx) ^ 2 + (anchor.z - bz) ^ 2 <= ADFields.FIELD_SILO_DISTANCE ^ 2 then
+                    table.insert(result, building)
+                    break
+                end
+            end
+        end
+    end
+    return result
+end
diff --git a/tests/test_adFields.lua b/tests/test_adFields.lua
new file mode 100644
index 0000000..0338292
--- /dev/null
+++ b/tests/test_adFields.lua
@@ -0,0 +1,33 @@
+-- Kør: luajit tests/test_adFields.lua   (fra repo-roden)
+dofile("FS25_ADSmartPickup/adFields.lua")
+local F = ADFields
+local failures = 0
+local function check(name, actual, expected)
+    if actual == expected then print("OK   " .. name) else
+        failures = failures + 1
+        print(string.format("FAIL %s: forventede %s, fik %s", name, tostring(expected), tostring(actual)))
+    end
+end
+
+-- F1/F2: markørnavne
+check("F1 F109", F.parseMarkerName("F109"), 109)
+check("F1 småt", F.parseMarkerName("f7"), 7)
+check("F1 mellemrum", F.parseMarkerName(" F 12 "), 12)
+check("F2 andet navn", F.parseMarkerName("Field 109"), nil)
+check("F2 tekst efter", F.parseMarkerName("F109 wait"), nil)
+check("F2 nil", F.parseMarkerName(nil), nil)
+
+-- F3: slåafgrøde = MOWER giver et skår som TEDDER gør til DRY…; halm udelukket
+local names = {[10] = "GRASS_WINDROW", [11] = "DRYGRASS_WINDROW", [20] = "STRAW", [30] = "CLOVER_WINDROW", [31] = "DRYCLOVER_WINDROW", [40] = "BEANSTRAW"}
+local mower = {[1] = {fillTypeIndex = 10}, [2] = {fillTypeIndex = 20}, [3] = {fillTypeIndex = 30}, [4] = {fillTypeIndex = 40}}
+local tedder = {[10] = {targetFillTypeIndex = 11}, [30] = {targetFillTypeIndex = 31}, [40] = {targetFillTypeIndex = 20}}
+local mowable = F.buildMowable(mower, tedder, function(index) return names[index] end)
+check("F3 græs", mowable[1] ~= nil, true)
+check("F3 græs skår", mowable[1].windrow, 10)
+check("F3 græs hø", mowable[1].hay, 11)
+check("F3 rug (halm) ikke", mowable[2], nil)
+check("F3 kløver", mowable[3].hay, 31)
+check("F3 bønnehalm -> halm ikke", mowable[4], nil)
+
+print(failures == 0 and "\nALLE TESTS OK" or ("\n" .. failures .. " FEJL"))
+os.exit(failures == 0 and 0 or 1)