actionscript 3 - How to make movieClip dash by pressing the key double with AS3? -

so question clear think. if player press or d key movieclip moves normal. if player press or d , release , press or d character dash or sprint or whatever. here code :

function key_down(event:keyboardevent) {     switch (event.keycode)     {         case 65 :             leftkey = true;             break;         case 66 :             punchkey = true;             break;         case 87 :             upkey = true;             break;         case 68 :             rightkey = true;             break;         case 83 :             downkey = true;             break;         case 78 :             jumpkey = true;             break;         case 77 :             kickkey = true;             break;     } }    function key_up(event:keyboardevent)  {  switch (event.keycode) {     case 65 :         leftkey = false;         num++;         if(num % 2 ==1){         canrun = true;         }         else {             canrun = false;         }           break;     case 66 :         punchkey = false;         punchbutton = true;         break;     case 87 :         upkey = false;         break;     case 68 :         rightkey = false;         break;     case 83 :         downkey = false;         break;     case 78 :         jumpkey = false;         jumpbutton = true;         break;     case 77 :         kickkey = false;         kickbutton = true;         break;  } }  if (leftkey || rightkey || downkey || upkey) {        if (! isjumping && ! ispunching && ! iskicking && ! isrunning )     {                        // 5.frame walking animation         speed = 7;         hero.gotoandstop(5);      }     if(! isjumping && ! ispunching && ! iskicking && isrunning ){         // isrunning means character dashing                     // 17.frame sprint animation                     speed = 10;         hero.gotoandstop(17);      }     if (leftkey)       {            hero.scalex = -1;         speedx -=  speed;     }     if (rightkey)     {         hero.scalex = 1;         speedx +=  speed;     } 

this logic, you'll have tweak project though. works multiple keys btw.

var thresholdtime = 250; var delaysuntilkeyup = [];  public function onkeydown(e):void {     delaysuntilkeyup[e.keycode] = gettimer();      switch (event.keycode) {         case 65 :             //do             break;     } }  public function onkeyup(e):void {      delaysuntilkeyup[e.keycode] = gettimer() - delaysuntilkeyup[e.keycode];      switch (event.keycode) {         case 65 :             if( delaysuntilkeyup[e.keycode] <= thresholdtime ){                 // when key released             } else {                 // else, or maybe nothing             }             break;     } }