Solved Changing vehicle during scenario desactivate checkpoints

Hello !

I'm trying to make a scenario where the player's car changes automatically when driving through a certain checkpoint. However, as soon as the vehicle is changed driving through the next checkpoint doesn't trigger it.

Any idea for a solution ?

 

This is because the waypoint tracking is done by the vehicle, so resetting it makes it lose that information. If you look at lua/ge/extensions/scenario/race.lua:141, you'll find the following bit of code (where bo is the player vehicle and nwp the next waypoint):

Code:

-- aim for the next waypoint
bo:queueLuaCommand('scenario.setTrigger("race.onScenarioVehicleTrigger", ' .. serialize(nwp.pos) .. ',' .. nwp.radius .. ');')

You'll have to call similar code after reloading the player vehicle.

 

Thanks ! But sadly I didn't managed to get it working, I have a lua error each time.

Code I added to my lua :

Code:

-- Vehicle change at the 1st waypoint
    if data.waypointName == 'testwp1' then

        TorqueScript.eval([[
            scenario_player0.JBeam = "sunburst";
            scenario_player0.partConfig = "vehicles/sunburst/sport_S_M.pc";
            scenario_player0.requestReload();
        ]])
        log('I', 'test.vehicleChanger', 'Sunburst spawned')
     
        --Getting the vehicle id
        local vid = scenario.vehiclesByID[id]
        local bo = be:getObjectByID(vid)
        if not bo then return end

        local nwp = "testwp2"
        local pos = "vec3(0,-50,0)"
        local radius = "4.3301272392273"
        bo:queueLuaCommand('scenario.setTrigger("race.onScenarioVehicleTrigger",' .. pos .. ',' .. radius .. ');')
    end

Here is the part of the log where the error is written :

Code:

[...]
19.61711|I|GELua.test.vehicleChanger|Sunburst spawned
19.61739|E|GameEngineLua|*** FATAL LUA ERROR: levels/smallgrid/scenarios/testScenario.lua:16: attempt to index global 'scenario' (a nil value)
Stack Traceback
===============
(1) Lua local 'fct' at file 'levels/smallgrid/scenarios/testScenario.lua:16'
  Local variables:
  data = table: 0x5f8a1120  {waypointName:testwp1, time:3.3834845097736, vehicleName:scenario_player0 (more...)}
  goal = nil
  (*temporary) = nil
  (*temporary) = string: "I"
  (*temporary) = string: "test.vehicleChanger"
  (*temporary) = string: "Sunburst spawned"
  (*temporary) = number: 7.50616e-313
  (*temporary) = number: 1.14048e+152
  (*temporary) = userdata: 0x5f831c38
  (*temporary) = string: "I"
  (*temporary) = string: "test.vehicleChanger"
  (*temporary) = string: "Sunburst spawned"
  (*temporary) = table: 0x5f806a78  {__gc:function: 0x5f8077b0, findObjectByIdAsTable:function: 0x5f808050, log:function: 0x5f807688 (more...)}
  (*temporary) = table: 0x5f806a78  {__gc:function: 0x5f8077b0, findObjectByIdAsTable:function: 0x5f808050, log:function: 0x5f807688 (more...)}
  (*temporary) = string: "attempt to index global 'scenario' (a nil value)"
(2) Lua field 'hook' at file 'lua/common/extensions.lua:159'
  Local variables:
  func = string: "onRaceWaypoint"
  (for generator) = C function: next
  (for state) = table: 0x5fa22978  {1:function: 0x5fa23ae8, 2:function: 0x5f8bf778, 3:function: 0x5fa91670 (more...)}
  (for control) = number: nan
  _ = number: 4
  fct = Lua function 'onRaceWaypoint' (defined at line 1 of chunk levels/smallgrid/scenarios/testScenario.lua)
(3) Lua field 'onScenarioVehicleTrigger' at file 'lua/ge/extensions//scenario/race.lua:108'
  Local variables:
  id = number: 1878
  w = table: 0x5f94f0f0  {nextWp:table: 0x5f92f5f0, lap:0, cur:1, next2:2, next2Wp:table: 0x5f8361f8 (more...)}
  vid = number: 1878
  bo = userdata: 0x5f8a7090
  lapDiff = number: 0
(4) main chunk of [string "line"] at line 1

19.61742|E|GameEngineLua|*** while executing this line: race.onScenarioVehicleTrigger(1878)
19.61743|E|GameEngineLua|*** in chunk: line
19.64238|D|libbeamng.engine|deleting object slot 0 ...
19.65858|I|BeamNGVehicle::spawnObject|Spawning object 'sunburst' with config: 'vehicles/sunburst/sport_S_M.pc'
19.69430|D|libbeamng.engine|creating new object in slot 0 ...
19.70393|D|libbeamng.lua.V.default.init|spawning vehicle vehicles/sunburst/
19.75166|D|libbeamng.lua.V.default.init|  using partconfig filename vehicles/sunburst/sport_S_M.pc - path:vehicles/sunburst/
19.75255|D|libbeamng.lua.V.jbeam.loadDirectories|set vehicle directory to vehicles/sunburst/
[...]

The log points the "race.onScenarioVehicleTrigger" as the source of the error, however I didn't managed to understand what this variable is ( I didn't found any "race" table mentioned elsewhere EDIT : apparently this is a function and not a table, but I still don't understand why it doesn't work).
One last point that also seems weird to me : on the log I can see that the sunburst is changed after the error appearing, but the code that produce the error is after the vehicle change.