Sprint for a amount of time

Question

Hello i have a question. (I'm new to unity...) Can I make a sprint script that changes the speed back to normal after a specific amount of time and the player has to wait another amount of time, until he can run again?

I use the default CharacterMotor script and the following one i got from the internet:

 var walkSpeed: float = 7; // regular speed
 
 var crchSpeed: float = 3; // crouching speed
 
 var runSpeed: float = 24; // run speed
 
 
 
 private var chMotor: CharacterMotor;
 
 private var ch: CharacterController;
 
 private var tr: Transform;
 
 private var height: float; // initial height
 
 
 
 function Start(){
 
     chMotor = GetComponent(CharacterMotor);
 
     tr = transform;
 
     ch = GetComponent(CharacterController);
 
  height = ch.height;
 
 }
 
 
 
 function Update(){
 
 
 
     var h = height;
 
     var speed = walkSpeed;
 
     
 
     if (ch.isGrounded && Input.GetKey("left shift") || Input.GetKey("right shift")){
 
         speed = runSpeed;
         runmode();
 
     }
     
    
      
         
 
     if (Input.GetKey("c")){ // press C to crouch
 
         h = 0.5 * height;
 
         speed = crchSpeed; // slow down when crouching
 
     }
 
     chMotor.movement.maxForwardSpeed = speed; // set max speed
 
     var lastHeight = ch.height; // crouch/stand up smoothly 
 
     ch.height = Mathf.Lerp(ch.height, h, 5*Time.deltaTime);
 
     tr.position.y += (ch.height-lastHeight)/2; // fix vertical position
 
 }
 
 function runmode (runTime : float) {
 var timer = 2.0;
     while (timer < runTime) {
        speed = runSpeed;
        timer += Time.deltaTime;
        yield;
     }
 }

Please help me. :D

Answer 1

Answer by LyanApps · Apr 02, 2013 at 02:50 PM

You can mark the start of the run when the event key_down is called and compare it to the end of your running by using Time.time. See this tutorial for the phases of a button press: http://unity3d.com/learn/tutorials/modules/beginner/scripting/get-button-and-get-key

 float run_start;
 bool running = false;
 float seconds_can_run = 10.0f;
 
 function Update(){
 ...
 //Mark the time only when the button is initially pushed
 if(!running && Input.GetKeyDown("left shift")){ 
   run_start = Time.time;
   running = true;
 }
 
 //Cancel running if the key is let go or the allowed time has ellapsed
 if(running && (Input.GetKeyUp("left shift") || (run_start + seconds_can_run > Time.time)){
   running = false;
 }
 
 if (ch.isGrounded && running){
 ...
 }

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Fotoschnitzel · Apr 02, 2013 at 03:28 PM 0

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Thanks this seems good now it looks like that:

 var walkSpeed: float = 7; // regular speed
 
 var crchSpeed: float = 3; // crouching speed
 
 var runSpeed: float = 24; // run speed
 
 
 
 private var ch$$anonymous$$otor: Character$$anonymous$$otor;
 
 private var ch: CharacterController;
 
 private var tr: Transform;
 
 private var height: float; // initial height
 
 float run_start;
 bool running = false;
 float seconds_can_run = 10.0f;
 
 
 
 function Start(){
 
     ch$$anonymous$$otor = GetComponent(Character$$anonymous$$otor);
 
     tr = transform;
 
     ch = GetComponent(CharacterController);
 
  height = ch.height;
 
 }
 
 
 
 function Update(){
 
 
 
     
 
     var speed = walkSpeed;
 
     if (!running && Input.Get$$anonymous$$ey("left shift")){
         
         run_start = Time.time;
         running = true;}
         
     if    (running && (Input.Get$$anonymous$$eyUp("left shift") || (run_start + seconds_can_run > Time.time)){
       running = false;}
       
       if (ch.isGrounded && running){
     speed = runSpeed;
     }        
 
 
     ch$$anonymous$$otor.movement.maxForwardSpeed = speed; // set max speed
 
     var lastHeight = ch.height; // crouch/stand up smoothly 
 
     ch.height = $$anonymous$$athf.Lerp(ch.height, h, 5*Time.deltaTime);
 
     tr.position.y += (ch.height-lastHeight)/2; // fix vertical position
 
 }

But it gives me some very strange errors...

Assets/Player $$anonymous$$ovement.js(21,6): UCE0001: ';' expected. Insert a semicolon at the end. Assets/Player $$anonymous$$ovement.js(22,5): UCE0001: ';' expected. Insert a semicolon at the end. Assets/Player $$anonymous$$ovement.js(23,6): UCE0001: ';' expected. Insert a semicolon at the end. Assets/Player $$anonymous$$ovement.js(54,104): BCE0044: expecting ), found '{'. Assets/Player $$anonymous$$ovement.js(70,1): BCE0044: expecting EOF, found '}'.

LyanApps · Apr 02, 2013 at 05:56 PM 0

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The variables I gave are in C# notation. try setting them to:

 var run_start : float;
 var running : bool = false;
 var seconds_can_run : float 10.0f;

Fattie · Apr 02, 2013 at 06:03 PM 0

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for a simple timer need like this it is very simple to just use Invoke(), cheers

Answer 2

Answer by Atharv24 · Apr 02, 2013 at 02:52 PM

make a variable like tireness and add Time.deltaTime * tirenessModifier to it. And do an if statement for running like only run when tireness < 10. Hope that helps :)

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Sprint for a amount of time

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