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Question by superlol · Mar 21, 2011 at 02:46 PM · buttonobjectmousecreation

Object creation by mouse click

Hi folks!

I'v a function than create a sphere over a plane on the hitpoint of the mouse cursor when I press the left button of the mouse.

I want to make the object growing while the mouse button is pressend, and stop growing when I release the mouse.

I'm trying to do that with Input.GetMouseButtonUp and Down without success :(

Here is my actual code

var bomb : GameObject; var timeD : float; var drop : GameObject;

function Update (){

 var hit : RaycastHit = new RaycastHit();
 var cameraRay : Ray  = Camera.main.ScreenPointToRay(Input.mousePosition);


 if (Physics.Raycast (cameraRay.origin,cameraRay.direction,hit, 1000)) {
     var cursorOn = true;
 }

 var mouseReleased : boolean = false;

 //BOMB DROPPING 
 if (Input.GetMouseButtonDown(0)) {

     drop = Instantiate(bomb, transform.position, Quaternion.identity);
     drop.transform.position = hit.point;

     Resize();

 }

}

function Resize(){ if (!Input.GetMouseButtonUp(0)){

         drop.transform.localScale = Vector3(timeD,timeD,timeD);
         timeD +=Time.deltaTime;
     }

}

Tnx!!

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avatar image superlol · Mar 21, 2011 at 03:07 PM 0
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Hi, tnx for the reply :) $$anonymous$$aybe I'm not explained exactly.

This is the list of operations I need to perform:

  • One $$anonymous$$ouse click holding the mouse button

  • The object is created on the hit point of the cursor

  • The object grew until I release the mouse button

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Answer by flaviusxvii · Mar 21, 2011 at 03:09 PM

A few things, you'll probably want something more like:

drop.transform.localScale += Vector3(Time.deltaTime, Time.deltaTime, Time.deltaTime);

And you'll want this to happen over course of many calls to Update:

function Update (){
    if(Input.GetMouseButton(0)) {
        // This means the left mouse button is currently down, so we'll augment the scale
        drop.transform.localScale += Vector3(Time.deltaTime, Time.deltaTime, Time.deltaTime);
    }
}

GetMouseButtonUp and GetMouseButtonDown only get called once.. just on the frames those events take place.

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avatar image DaveA · Mar 21, 2011 at 03:33 PM 0
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You probably want to define a 'speed' so you can adjust that var speed = .5; drop.transform.localScale += Vector3(Time.deltaTime, Time.deltaTime, Time.deltaTime) * speed;

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