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R
rahimh68640584
Participating Frequently
April 13, 2015
Answered

How to find the objects names which hit on other object

  • April 13, 2015
  • 3 replies
  • 1273 views

Dear Friends,

I am moving a movieclip on the screen every where on the screen, during the movement I will hit or overlap other objects on the screen. I want to find the name of the objects which hit or overlap my movieclip.

for example I used trace(my_mc.hitTestObject(objnames). Here the objnames may be any object(movie clips) on the screen. I want to find which object hitted my movieclip..

please help me...its like a game project.

Thanks in Advance,

Syed Abdul Rahim

This topic has been closed for replies.
Correct answer moccamaximum

Dear Mr.Moccamaxium,

Thks for the reply.. iam getting the following error:

RangeError: Error #2006: The supplied index is out of bounds. at flash.display::DisplayObjectContainer/getChildAt() at Untitled_fla::MainTimeline/detectCollision()

in ur code I have adjusted the parenthesis...like below:

stage.addEventListener(MouseEvent.MOUSE_MOVE, detectCollision);

function detectCollision(e:MouseEvent):void
{
for (var i:int = 0; 1<this.numChildren-1; i++)
{
  trace("test "+this.numChildren);
  //don`t test an objects collision with itself
  if (getChildAt(i).name != "myObject")
  {
   trace(i);
   if (myObject.hitTestObject(getChildAt(i)))
   {

    trace("my Object hit " +getChildAt(i).name);
   }
  }
}
}

Thanks in Advance,

Syed Abdul Rahim


My fault, i had a typo in my loop:

var i:int = 0; 1<this.numChildren;i++


should be


var i:int = 0; i<this.numChildren;i++



Now it works as expected



3 replies

R
rahimh68640584Author
Participating Frequently
April 15, 2015

Dear Mr.Moccamaxium,

Thks for the reply.. iam getting the following error:

RangeError: Error #2006: The supplied index is out of bounds. at flash.display::DisplayObjectContainer/getChildAt() at Untitled_fla::MainTimeline/detectCollision()

in ur code I have adjusted the parenthesis...like below:

stage.addEventListener(MouseEvent.MOUSE_MOVE, detectCollision);

function detectCollision(e:MouseEvent):void
{
for (var i:int = 0; 1<this.numChildren-1; i++)
{
  trace("test "+this.numChildren);
  //don`t test an objects collision with itself
  if (getChildAt(i).name != "myObject")
  {
   trace(i);
   if (myObject.hitTestObject(getChildAt(i)))
   {

    trace("my Object hit " +getChildAt(i).name);
   }
  }
}
}

Thanks in Advance,

Syed Abdul Rahim

R
rahimh68640584Author
Participating Frequently
April 14, 2015

Dear Friends,

Pls reply me.... How can I find the hitted object name, My object will move with my mouse and hit or overlap the objects in the screen.. I want to get those name (name of the objects)... pls help me to find...

Thanks in advance,

Syed Abdul Rahim

M
moccamaximum
Inspiring
April 14, 2015

with an object named "myObject" on stage:

stage.addEventListener(MouseEvent.MOUSE_MOVE, detectCollision);

function detectCollision(e:MouseEvent):void{

for (var i:int = 0; 1<this.numChildren;i++){

//don`t test an objects collision with itself

   if (getChildAt(i).name != "myObject"){

  if(myObject.hitTestObject(getChildAt(i)){

   trace("my Object hit " +getChildAt(i).name;

     }

   }

}

CAVEAT: Flash native collision detection has low standards, it`s not designed to detect collisions of complex shapes.

For Pixel Perfect collision detection you will have to look further

Pixel Perfect Collision Detection | Free ActionScript

R
rahimh68640584Author
Participating Frequently
April 15, 2015

Dear Mr.Moccamaxium,

Thks for the reply.. iam getting the following error:

RangeError: Error #2006: The supplied index is out of bounds. at flash.display::DisplayObjectContainer/getChildAt() at Untitled_fla::MainTimeline/detectCollision()

in ur code I have adjusted the parenthesis...like below:

stage.addEventListener(MouseEvent.MOUSE_MOVE, detectCollision);

function detectCollision(e:MouseEvent):void
{
for (var i:int = 0; 1<this.numChildren-1; i++)
{
  trace("test "+this.numChildren);
  //don`t test an objects collision with itself
  if (getChildAt(i).name != "myObject")
  {
   trace(i);
   if (myObject.hitTestObject(getChildAt(i)))
   {

    trace("my Object hit " +getChildAt(i).name);
   }
  }
}
}

Thanks in Advance,

Syed Abdul Rahim

R
rahimh68640584Author
Participating Frequently
April 13, 2015

trace(my_mc.hitTestObject(objnames).

I mean I want to find the objnames here..

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