Docs/docs/zh/beamng/snippets.md

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BeamNG.drive代码片段

Lua代码片段

绘制标记和车辆检测

在地图中绘制标记可能是向用户表明他们可以在那里进行某种形式的交互的最佳方式之一。

绘制标记相当容易。以下是如何绘制公交车路线标记的示例：

  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

以下是来自BeamNG-FuelStations的自定义标记示例：

  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}})

消息通知，消息应用程序中默认位于屏幕左上角

--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