player setvariable ["ARGT_JUMP_POWER", 5.5, true];
player setvariable ["ARGT_JUMP_READY", true, true];

ARGT_JUMP =
{
   private ["_moves", "_state", "_velocity", "_power", "_speed"];
   if ( ! (player getvariable "ARGT_JUMP_READY") || vehicle player != player ) exitwith {true};
   _moves = configfile >> gettext ( configfile >> "CfgVehicles" >> typeof player >> "moves" );
   _state = getnumber (_moves >> "Actions" >> gettext ( _moves >> "States" >> animationstate player >> "actions" ) >> "upDegree");
   if ( _state in [1,2,3,4,5,6,7,11,13,14] ) exitwith {true};
   _power = (1 - (damage player)) * (player getvariable "ARGT_JUMP_POWER");
   _speed = _power / 2;
   _velocity = velocity player;
   /*player setvariable ["ARGT_JUMP_WEAPON", currentweapon player, true];
   player selectweapon primaryweapon player;*/
   player switchmove "ActsPercMrunSlowWrflDf_FlipFlopPara";
   player setvariable ["ARGT_JUMP_READY", false, true];
   player setvelocity [(_velocity select 0) + _speed * sin getdir player,
                       (_velocity select 1) + _speed * cos getdir player,
                       (_velocity select 2) + _power];
   true
};

player addeventhandler ["AnimDone",
{
   private ["_unit"];
   _unit = _this select 0;
   if ( ! (_unit getvariable "ARGT_JUMP_READY") ) then {_unit setvariable ["ARGT_JUMP_READY", true, true]};
}];

ARGT_KEYDOWN =
{
   private ["_dikcode"];
   _dikcode = _this select 1;
   switch ( true ) do
   {
     case ( _dikcode == 0x39 ) : {call ARGT_JUMP}; // DIK_SPACE
     default {false};
   };     
};

while { true } do
{
   waituntil { ! isnull finddisplay 46 };
   finddisplay 46 displayaddeventhandler ["KeyDown", "_this call ARGT_KEYDOWN"];
   waituntil { isnull finddisplay 46 };
};