HitTestObject parameter must be null.

I create a game in which there are 4 buttons. The 4 buttons are baskets with labels of solids, liquids, gas and fire. When the button is clicked, the basket that keeps the catcher/character will change depending on what the button is clicked. The performance of the basket is now correct. I put the change in the animation of the basket inside the character/receiver movieClip and what I do, it's that when I clicked on the desired basket, I call the gotoAndPlay function. Now, my problem is on my hitTestObject. I want solid objects to be catch the solid objects only and so on. But whenever I clicked on the button, the shopping cart will change, but the receiver/character don't move because of this error. What should I do? >. <

Here is my code in hitTestObject:

public void moveObjects(e:Event) {}

for (var i: int = objects.length - 1; i > = 0; i--) {}

objects [i] there speed +=;

addChild (objects [i]);

If (items [i] .hitTestObject (catcher.mouth_mc_2)) {}

If (items [i] .typestr == 'solid') {}

score += 5;

soundfx_1.play ();

Catcher.mouth_mc_2.gotoAndPlay (9);

}

on the other

{

score = 5;

soundfx_2.play ();

Catcher.mouth_mc_2.gotoAndPlay (2);

}

If score (score < 0) = 0;

ScoreDisplay.text = String (score);

removeChild (objects [i]);

Objects.splice (i, 1);

}

ElseIf (objects [i] .hitTestObject (catcher.mouth_mc_3)) {}

If (items [i] .typestr == 'liquid') {}

score += 5;

soundfx_1.play ();

Catcher.mouth_mc_3.gotoAndPlay (9);

}

on the other

{

score = 5;

soundfx_2.play ();

Catcher.mouth_mc_3.gotoAndPlay (2);

}

If score (score < 0) = 0;

ScoreDisplay.text = String (score);

removeChild (objects [i]);

Objects.splice (i, 1);

}

ElseIf (objects [i] .hitTestObject (catcher.mouth_mc_4)) {}

If (items [i] .typestr == 'gas') {}

score += 5;

soundfx_1.play ();

Catcher.mouth_mc_4.gotoAndPlay (9);

}

on the other

{

score = 5;

soundfx_2.play ();

Catcher.mouth_mc_4.gotoAndPlay (2);

}

If score (score < 0) = 0;

ScoreDisplay.text = String (score);

removeChild (objects [i]);

Objects.splice (i, 1);

}

ElseIf (objects [i] .hitTestObject (catcher.mouth_mc_5)) {}

If (items [i] .typestr == 'fire') {}

score += 5;

soundfx_1.play ();

Catcher.mouth_mc_5.gotoAndPlay (9);

}

on the other

{

score = 5;

soundfx_2.play ();

Catcher.mouth_mc_5.gotoAndPlay (2);

}

If score (score < 0) = 0;

ScoreDisplay.text = String (score);

removeChild (objects [i]);

Objects.splice (i, 1);

}

ElseIf (objects [i] .hitTestObject (boundary)) {}

removeChild (objects [i]);

Objects.splice (i, 1);

}

Catcher.x = mouseX;

checkStageBorder();

}

}

check if objects exist before trying to use them in your hittest.  for example, you can use the following to search all your hittests except the limit.  How you manage the minting of the limit depends on more than one catcher.mouth_mc one exist at the same time:

public void moveObjects(e:Event) {}

for (var i: int = objects.length - 1; i > = 0; i--) {}

objects [i] there speed +=;

addChild (objects [i]);

for (var j: int = 2; j<>

{if (Catcher ["mouth_mc_" + j])}

If (items [i] .hitTestObject (catcher ["mouth_mc_" + j])) {}

If (items [i] .typestr == 'solid') {}

score += 5;

soundfx_1.play ();

Catcher ["mouth_mc_" + j] .gotoAndPlay (9);

}

on the other

{

score = 5;

soundfx_2.play ();

Catcher ["mouth_mc_" + j] .gotoAndPlay (2);

}

If (score< 0)="" score="">

ScoreDisplay.text = String (score);

removeChild (objects [i]);

Objects.splice (i, 1);

}

}

Tags: Adobe Animate

Similar Questions

  • TypeError: Error #2007: hitTestObject parameter must be null

    I make a game with AS3 and have only been doing for a week but I still get this problem and there is always something different every time. could someone help me. Here is the source code (image 2 of 3, where the main problem is on line 192):

    full of the error:

    TypeError: Error #2007: hitTestObject parameter must be null.

    at flash.display::DisplayObject/_hitTest()

    at flash.display::DisplayObject/hitTestObject()

    at collisionwallgame_fla::MainTimeline/greenwinZone()

    source code:

    import flash.events.Event;

    import flash.events.KeyboardEvent;

    import flash.display.Sprite;

    import flash.events.MouseEvent;

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    var characterSpeed:int = 7;

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    var prevY:Number = 0;

    Hero.x = 133.35;

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    stage.addEventListener (KeyboardEvent.KEY_DOWN, keyboardCommands);

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    {

    Hero.x += 5;

    }

    If (e.keyCode is Keyboard.UP)

    {

    Hero.y-= 5;

    }

    If (e.keyCode is Keyboard.DOWN)

    {

    Hero.y += 5;

    }

    }

    Wall collision detection

    stage.addEventListener (Event.ENTER_FRAME, wallblock);

    / * function resetXY (): void

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    trace (hero.x + "" + prevX);

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    Hero.y = prevY;

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    {

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    {

    hero.x = prevX;

    hero.y = prevY;

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    /*{

    resetXY()

    }*/

    If (hero.hitTestObject (wall2))

    {

    Hero.y-= 7.5;

    }

    If (hero.hitTestObject (wall3))

    {

    Hero.x += 7.5;

    }

    If (hero.hitTestObject (wall4))

    {

    Hero.y-= 7.5;

    }

    If (hero.hitTestObject (wall5))

    {

    Hero.y-= 7.5;

    }

    If (hero.hitTestObject (wall6))

    {

    Hero.y-= 7.5;

    }

    If (hero.hitTestObject (wall7))

    {

    Hero.y-= 7.5;

    }

    If (hero.hitTestObject (wall8))

    {

    Hero.x-= 7.5;

    }

    If (hero.hitTestObject (wall9))

    {

    Hero.y-= 7.5;

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    If (hero.hitTestObject (wall10))

    {

    Hero.x-= 7.5;

    }

    If (hero.hitTestObject (wall11))

    {

    Hero.y += 7.5;

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    If (hero.hitTestObject (wall12))

    {

    Hero.x-= 7.5;

    }

    If (hero.hitTestObject (wall13))

    {

    Hero.x-= 7.5;

    }

    If (hero.hitTestObject (wall14))

    {

    Hero.y += 7.5;

    }

    If (hero.hitTestObject (wall15))

    {

    Hero.y += 7.5;

    }

    If (hero.hitTestObject (wall16))

    {

    Hero.y += 7.5;

    }

    If (hero.hitTestObject (wall17))

    {

    Hero.x += 7.5;

    }

    If (hero.hitTestObject (wall18))

    {

    Hero.y += 7.5;

    }

    }

    adding in enemy sprites

    var enemySpeed:int = 2;

    var Enemy1:Enemyclass1 = new Enemyclass1;

    var Enemy2:Enemyclass1 = new Enemyclass1;

    var Enemy3:Enemyclass1 = new Enemyclass1;

    var Enemy4:Enemyclass2 = new Enemyclass2;

    var Enemy5:Enemyclass2 = new Enemyclass2;

    Enemy1.x = 187;

    Enemy1.y = 116;

    Enemy2.x = 271;

    Enemy2.y = 116;

    Enemy3.x = 349;

    Enemy3.y = 116;

    Enemy4.x = 219;

    Enemy4.y = 260;

    Enemy5.x = 309;

    Enemy5.y = 260;

    addChild (Enemy1);

    addChild (Enemy2);

    addChild (Enemy3);

    addChild (Enemy4);

    addChild (Enemy5);

    function cancel (): void

    {

    gotoAndStop (3);

    trace ("hit");

    removeChild (Enemy1);

    removeChild (Enemy2);

    removeChild (Enemy3);

    removeChild (Enemy4);

    removeChild (Enemy5);

    removeChild (hero);

    stage.removeEventListener (KeyboardEvent.KEY_DOWN, keyboardCommands);

    stage.removeEventListener (Event.ENTER_FRAME, wallblock);

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    the code that you advance to the next screen)

    stage.addEventListener (Event.ENTER_FRAME, greenwinZone)

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    {

    gotoAndStop (4);

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    removeChild (Enemy2);

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    removeChild (Enemy5);

    removeChild (hero);

    stage.removeEventListener (KeyboardEvent.KEY_DOWN, keyboardCommands);

    stage.removeEventListener (Event.ENTER_FRAME, wallblock);

    hero.removeEventListener (Event.ENTER_FRAME, enemyhit);

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    hero.addEventListener (Event.ENTER_FRAME, enemyhit);

    function enemyhit(e:Event):void

    {

    If (hero.hitTestObject (Enemy1))

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    Terminate();

    }

    If (hero.hitTestObject (Enemy2))

    {

    Terminate();

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    If (hero.hitTestObject (Enemy3))

    {

    Terminate();

    }

    If (hero.hitTestObject (Enemy4))

    {

    Terminate();

    }

    If (hero.hitTestObject (Enemy5))

    {

    Terminate();

    }

    }

    It seems that the function does not stop execution while it should.  I think I can see why, now that I have take a closer look.  You assign the event listener that calls this function for the stage (~ line 189), but then you try to remove this the hero event listener (~ line 205).

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    Error #2007: HitTestObject parameter must be non-null

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    at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1490)
    at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)
    at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)

    The answer late, sorry it was a bug in the product, was fixed after you apply the hotfix.

    Cheers, nasser

  • Error #2007: Text parameter must be non-null.

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    You shouldn't nest a function inside an event listener, let it stand on its own.  In addition, you should try to leave the variable stand alone to assign so that there is a better chance, she is ready when it is called. (these imports are not necessary if coded in the timeline)

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    If (snd! = null) {}

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    }

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    This looks to another case of code not be placed where it should be.

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  • ActionScript 3 + PHP: TypeError: Error #2007: text parameter must be non-null.

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    $senderName = stripslashes ($senderName);

    $senderContact = stripslashes ($senderContact);

    $senderMessage = stripslashes ($senderMessage);

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    Jay

    As I said, the PHP is not the value you are trying to assign to the text property of the textfield status_txt.  If you try to assign an undefined value.  Somewhere in your PHP, you do an echo of this value...

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  • TypeError: Error #2007: child parameter must be non-null.

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    at 
Function/EasyDifficulty/clickCard/removeMatch()[C:\Users\Adi\Desktop\Playbook\Playbook
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