--player : CPlayerPuppetEntity
local worldInfo = worldGlobals.worldInfo

local NotVersus = {
  ["SinglePlayer"] = true,
  ["Cooperative"] = true,
  ["Survival"] = true,
  ["TeamSurvival"] = true,
  ["BeastHunt"] = true,
  ["BeastSurvival"] = true,
  ["CooperativeStandard"] = true,
  ["CooperativeCoinOp"] = true,
  ["TeamBeastHunt"] = true,
  ["OneShotSurvival"] = true,
}

local DJEnabled = false

if NotVersus[worldInfo:GetGameMode()] or worldInfo:IsSinglePlayer() then DJEnabled = true end
Wait(Times(2,CustomEvent("OnStep")))
if not (worldGlobals.DoubleJumpEnabled == nil) then
  DJEnabled = worldGlobals.DoubleJumpEnabled
end

if not DJEnabled then return end

local player
local Pi = 3.14159265359
local dashDelay = 5

local findPlayer = function()
  while (player == nil) do
    local Players = worldInfo:GetAllPlayersInRange(worldInfo,10000)
    for i=1,#Players,1 do
      if Players[i]:IsLocalOperator() then
        player = Players[i]
        break
      end
    end
  end
end
findPlayer()

local prevVel = player:GetLinearVelocity()
local searching = false
local k = 0
local deltaDash = dashDelay

RunHandled(WaitForever,

OnEvery(CustomEvent("OnStep")),
function(step)
  if not IsDeleted(player) then
    local tempo = player:GetDesiredTempoAbs()
    local vel = player:GetLinearVelocity()
    local speed = player:GetSpeedMultiplier()
    if player:IsCommandPressed("plcmdShield") and deltaDash >= dashDelay then
      print("cur=" + deltaDash)
      deltaDash = 0
      if (tempo.y <= 0) then
        if ((vel.y - prevVel.y) < 0) then
          tempo.x = tempo.x * 40 * speed.x
          tempo.y = tempo.y * 1 * speed.y
          tempo.z = tempo.z * 40 * speed.z
          player:SetLinearVelocity(tempo)
          player:PlaySchemeSound("Dash")
        end
      end
    else
      deltaDash = deltaDash + worldInfo:SimGetStep()
      print("btw=" + deltaDash)
    end
    prevVel = vel
  elseif not searching then
    searching = true
    player = nil
    findPlayer()
    searching = false
  end
end)