Using triggers

#1 BFII Trigger

A trigger I made a while back... might be more than you're asking but it shows how triggers work.

#2

function triggerSapo::onEnterTrigger( %this, %trigger, %obj )
{ 
if ( %obj.getType() & TypeMasks::ItemObjectType)
{
    echo( "An item has entered this trigger.");
}


Parent::onEnterTrigger( %this, %trigger, %obj );
}

edit:spelling

#3 Yes , but with items do not work the trigger ,
do you try ?

thanks.

#4 OK. I tested it using rigidShape which is probably closer to what you need for a golf ball. I added a flag called 'flag' in the datablock which looks like:

datablock RigidShapeData( GolfBall)
{	
   category = "RigidShape";     
   flag = 1;

  .... more code here
};

This flag is used to test what entered the trigger since I don't know what $typemask to use (if there is one for rigidShape).

Then the triggercode:

function ItemTrigger::onEnterTrigger(%this,%trigger,%obj)
{
   // This method is called whenever an object enters the %trigger
   // area, the object is passed as %obj.  The default onEnterTrigger
   // method (in the C++ code) invokes the ::onTrigger(%trigger,1) method on
   // every object (whatever it's type) in the same group as the trigger.
   
   %obj = %trigger.getObject(%i); 
		       
   // echo( "%obj.getDatablock() = " @ %obj.getDatablock());		     
   // echo( "%obj.getDatablock().flag = " @ %obj.getDatablock().flag);	
   // %obj.dump();	
     
   // Check if the %obj is an item. 
   if ( %obj.getDatablock().flag == 1)
   {
      echo( "A GOLF BALL has entered this trigger!!!!!!!");
   }
   else
   {
      echo( "Something else has entered this trigger.   :::   " @ %obj);
   }
   
   Parent::onEnterTrigger(%this,%trigger,%obj);
}

Uncomment the echos and dump() if you want to see more functions, etc, you can use with this datablock.

#5 Thanks a lot, yes with the rigidShape the triggers works , now i have another problem , it 's colliding with the character , with the item i used setCollisionTimeout( $player );
how can disable collision with the character .

thanks a lot for your help.

#6 What is colliding with the player the rigidShape or the trigger?

For rigidShape you just check if it's a player and exit the function using return; I haven't tested this myself.

function RigidShapeData::onCollision(%data, %obj, %col, %vec, %speed)
{
if ( %obj.getType() & TypeMasks::PlayerObjectType)
{
    echo( "A player has entered this trigger.");
    return; 
}

#7 Yes , the rigidShape is colliding with the player, the same problem i had when i try with the item .
and i can solve with setCollisionTimeout( $player );

in your example RigidShapeData::onCollision(% ....
this function do not disable the colision , just send a message that there is a collision.

do you know any function to disable player collision with specific objet , in our case the rigidBody

something like this, %myPlayer.disableColission( $obj ) . or with the rigidShape

meanwhile , i think i can change the collision model, and reexport.


thanks mb