GE Lua Documentation

checkSpawnPoint

Definition

-- @/lua/ge/extensions/gameplay/traffic/trafficUtils.lua:198

local function checkSpawnPoint(pos, origPos, minDist, minVehDist) -- checks a spawn point for any conflicts
  origPos = origPos or core_camera.getPosition()
  minDist = minDist or 80
  minVehDist = minVehDist or 15 -- should this be based on the other vehicle size?

  if pos:squaredDistance(origPos) < square(minDist) then
    return false
  end

  local traffic = gameplay_traffic.getTrafficData()
  for _, veh in ipairs(getAllVehicles()) do
    if veh:getActive() then
      local vehId = veh:getId()

      local relSpeed = 0
      if map.objects[vehId] then
        tempPos:set(map.objects[vehId].pos)
        tempDir:set(map.objects[vehId].vel)
        tempPos:setSub2(pos, tempPos) -- actually the direction vector from the vehicle to the spawn point
        tempPos:normalize()
        relSpeed = clamp(tempDir:dot(tempPos), 0, 50)
        local relSpeedCoef = 1.4 -- artificial coefficient, for a stricter result
        local gravity = core_environment.getGravity()
        relSpeed = square(relSpeed * relSpeedCoef) / (2 * math.max(0.1, math.abs(gravity)) * sign2(gravity) * -1)
      end

      if traffic[vehId] then
        tempPos:set(traffic[vehId].pos) -- latest other traffic vehicle position
      else
        tempPos:set(veh:getPositionXYZ())
      end

      local radius = veh:isPlayerControlled() and minDist or minVehDist
      if pos:squaredDistance(tempPos) < square(math.max(radius, relSpeed)) then
        return false
      end
    end
  end

  return true
end

Callers

      if traffic[vehId]._teleport then -- force teleport if flag exists
        if gameplay_traffic_trafficUtils.checkSpawnPoint(traffic[vehId].pos) then -- if current position is safe, then no teleport needed
          traffic[vehId]:onRefresh()

        if checkSpawnPoint(spawnData.pos, nil, minDist) then
          spawnData.n1, spawnData.n2 = n1, n2

        if checkSpawnPoint(spawnData.pos, nil, minDist) then
          spawnData.n1, spawnData.n2 = n1, n2

      if currDist >= targetDist or checkRayCast(spawnData.pos, startPos) then
        if checkSpawnPoint(spawnData.pos, nil, minDist) then
          spawnData.n1, spawnData.n2 = n1, n2