Docs/docs/zh/beamng/snippets.md

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BeamNG.drive代码片段

Lua代码片段

Drawing a marker & Vehicle detection

Drawing markers in the map can be one of the best ways to indicate to the user that there is some form of interaction that they can do there.

Drawing a marker is fairly easy. Here is an example of how the bus route marker is drawn:

  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

Here is a custom marker example from BeamNG-FuelStations:

  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示例

Toast通知，位于屏幕右上角

--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}})

Message notifications, top left of screen by default in Messages app

--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"})

位于中心，大，小型短暂显示

--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}})

位于中心，中型持续显示

--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代码片段

CEF UI代码片段