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# BeamNG.drive Code Ausschnitte

## Lua-Code-Ausschnitte

### Zeichnen einer Markierung und Fahrzeugerkennung

Das Zeichnen von Markierungen in der Karte kann eine der besten Möglichkeiten sein, dem Benutzer anzuzeigen, dass dort irgendeine Form der Interaktion möglich ist.

Das Zeichnen eines Markers ist ziemlich einfach. Hier ist ein Beispiel dafür, wie die Buslinienmarkierung gezeichnet wird:

```Lua
  local function createBusMarker(markerName)
    local marker =  createObject('TSStatic')
    marker:setField('shapeName', 0, "art/shapes/interface/position_marker.dae")
    marker:setPosition(vec3(0, 0, 0))
    marker.scale = vec3(1, 1, 1)
    marker:setField('rotation', 0, '1 0 0 0')
    marker.useInstanceRenderData = true
    marker:setField('instanceColor', 0, '1 1 1 0')
    marker:setField('collisionType', 0, "Collision Mesh")
    marker:setField('decalType', 0, "Collision Mesh")
    marker:setField('playAmbient', 0, "1")
    marker:setField('allowPlayerStep', 0, "1")
    marker:setField('canSave', 0, "0")
    marker:setField('canSaveDynamicFields', 0, "1")
    marker:setField('renderNormals', 0, "0")
    marker:setField('meshCulling', 0, "0")
    marker:setField('originSort', 0, "0")
    marker:setField('forceDetail', 0, "-1")
    marker.canSave = false
    marker:registerObject(markerName)
    scenetree.MissionGroup:addObject(marker)
    return marker
  end

  -- this can then be called in a loop to setup your markers.
  -- NOTE: You should only do this once as part of your setup and not called on each frame.
  if #markers == 0 then
    for k,v in pairs(nameMarkers) do
      local mk = scenetree.findObject(v)
      if mk == nil then
        log('I', logTag,'Creating marker '..tostring(v))
        mk = createBusMarker(v)
        ScenarioObjectsGroup:addObject(mk.obj)
      end
      table.insert(markers, mk)
    end
  end
```

Hier ist ein Beispiel für einen benutzerdefinierten Marker von [BeamNG-FuelStations](https://github.com/BeamMP/BeamNG-FuelStations/tree/master) :

```Lua
  local stations = [
    { "location": [ -778.813,  485.973, 23.46 ], "type":"gas" },
    { "location": [  617.164, -192.107, 53.2  ], "type":"ev"  },
  ]

  local function IsEntityInsideArea(pos1, pos2, radius)
    return pos1:distance(pos2) < radius
  end

  local onUpdate = function (dt)
    for k, spot in pairs(stations) do -- loop through all spots on the current map
      local bottomPos = vec3(spot.location[1], spot.location[2], spot.location[3])
      local topPos = bottomPos + vec3(0,0,2) -- offset vec to get top position (2m tall)

      local spotInRange = false -- is this spot in range? used for color
      local spotCompatible = false -- is this spot compatible?

      if activeVeh then -- we have a car and its ours (if in mp)
        local vehPos = activeVeh:getPosition()

        spotInRange = IsEntityInsideArea(vec3(vehPos.x, vehPos.y,vehPos.z), bottomPos, 1.5)

        spotCompatible = activeFuelType == "any" or spot.type == "any" or activeFuelType == spot.type
      end

      local spotColor = (spotInRange and spotCompatible) and activeColorMap[spot.type] or inactiveColorMap[spot.type] or ColorF(1,1,1,0.5)

      debugDrawer:drawCylinder(bottomPos:toPoint3F(), topPos:toPoint3F(), 1, spotColor) --bottom, top, radius, color
    end
  end
```

### Guihooks-Beispiele

#### Toast-Benachrichtigungen, oben rechts auf dem Bildschirm

![Bild](https://github.com/StanleyDudek/Docs/assets/49531350/c8a87842-b95a-4eca-84dc-93072ecc9158)

```lua
--guihooks.trigger('toastrMsg', {type, title, msg, config = {timeOut}})
guihooks.trigger('toastrMsg', {type = "info", title = "Info Message:", msg = "Info Message Text Here", config = {timeOut = 5000}})
guihooks.trigger('toastrMsg', {type = "warning", title = "Warning Message:", msg = "Warning Message Text Here", config = {timeOut = 5000}})
guihooks.trigger('toastrMsg', {type = "error", title = "Error Message:", msg = "Error Message Text Here", config = {timeOut = 5000}})
```

#### Nachrichtenbenachrichtigungen, standardmäßig oben links auf dem Bildschirm in der Nachrichten-App

![Bild](https://github.com/StanleyDudek/Docs/assets/49531350/6baef813-50cb-43c3-9c59-0de550b014b6)

```lua
--guihooks.trigger('Message', {msg, ttl, category, icon}) --requires Messages app
guihooks.trigger('Message', {msg = "Message Text Here", ttl = 5.0, category = "arrow_upward", icon = "arrow_upward"})
guihooks.trigger('Message', {msg = "Message Text Here", ttl = 5.0, category = "arrow_downward", icon = "arrow_downward"})
guihooks.trigger('Message', {msg = "Message Text Here", ttl = 5.0, category = "flag", icon = "flag"})
guihooks.trigger('Message', {msg = "Message Text Here", ttl = 5.0, category = "check", icon = "check"})
guihooks.trigger('Message', {msg = "Message Text Here", ttl = 5.0, category = "check_circle", icon = "check_circle"})
guihooks.trigger('Message', {msg = "Message Text Here", ttl = 5.0, category = "warning", icon = "warning"})
guihooks.trigger('Message', {msg = "Message Text Here", ttl = 5.0, category = "error", icon = "error"})
guihooks.trigger('Message', {msg = "Message Text Here", ttl = 5.0, category = "directions_car", icon = "directions_car"})
guihooks.trigger('Message', {msg = "Message Text Here", ttl = 5.0, category = "star", icon = "star"})
guihooks.trigger('Message', {msg = "Message Text Here", ttl = 5.0, category = "timeline", icon = "timeline"})
guihooks.trigger('Message', {msg = "Message Text Here", ttl = 5.0, category = "save", icon = "save"})
guihooks.trigger('Message', {msg = "Message Text Here", ttl = 5.0, category = "settings", icon = "settings"})
```

#### Zentrales, aufblinkendes, großes oder kleines Anzeigefenster

![Bild](https://github.com/StanleyDudek/Docs/assets/49531350/d0cf754f-83f8-4d15-9159-27350da127de)![Bild](https://github.com/StanleyDudek/Docs/assets/49531350/1df6fc9b-756f-484e-b8d9-5df346dc4c26)

```lua
--guihooks.trigger('ScenarioFlashMessage', {{msg, ttl, sound, big}} ) -- requires RaceCountdown ui app
guihooks.trigger('ScenarioFlashMessage', {{"Message", 5.0, 0, true}} )
guihooks.trigger('ScenarioFlashMessage', {{"Message Text Here", 5.0, 0, false}} )

--countdown example, when all executed at once, the items are queued and will follow eachother after the previous ttl expires
guihooks.trigger('ScenarioFlashMessage', {{"3", 1.0, "Engine.Audio.playOnce('AudioGui', 'event:UI_Countdown1')", true}})
guihooks.trigger('ScenarioFlashMessage', {{"2", 1.0, "Engine.Audio.playOnce('AudioGui', 'event:UI_Countdown2')", true}})
guihooks.trigger('ScenarioFlashMessage', {{"1", 1.0, "Engine.Audio.playOnce('AudioGui', 'event:UI_Countdown3')", true}})
guihooks.trigger('ScenarioFlashMessage', {{"GO!", 3.0, "Engine.Audio.playOnce('AudioGui', 'event:UI_CountdownGo')", true}})

--another sound example
guihooks.trigger('ScenarioFlashMessage', {{"Teleported!", 3.0, "Engine.Audio.playOnce('AudioGui', 'event:UI_Checkpoint')", false}})
```

#### Zentrales, mittelgroßes, dauerhaftes Display

![Bild](https://github.com/StanleyDudek/Docs/assets/49531350/6290e018-6b3d-4674-98f2-34282a723258)

```lua
--guihooks.trigger('ScenarioRealtimeDisplay', {msg = msg} ) -- requires Race Realtime Display ui app
guihooks.trigger('ScenarioRealtimeDisplay', {msg = "Message Text Here"} )
--these messages persist, clear with a blank string
--if you are running live data, this is a good one to update rapidly (think timers, distance calcs, et cetera)
guihooks.trigger('ScenarioRealtimeDisplay', {msg = ""} )
```

## IMGUI-Codeausschnitte

## CEF-UI-Codeausschnitte