I generally group my collisions test in movieclips Take the brick for example:
brickHolder_mc.redBricks brickHolder_mc.greenBricks brickHolder_mc.yellowBricks I hit test against brickHolder_mc first, if this is succesful I dip down into the child mc's and break out when I get a positive. Cheers M > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf > Of slangeberg > Sent: 13 December 2006 16:13 > To: Flashcoders mailing list > Subject: Re: [Flashcoders] AS2 OOP Class Structure for simple > pong type game > > Have you actually implemented an event system like this in > games? It seems like a good idea, but for some reason I > always thought this approach would introduce unnecessary > latency, but now I'm not sure why! > > -Scott > > On 12/13/06, Pete Miller <[EMAIL PROTECTED]> wrote: > > > > Another possible strategy is for the ball to fire off an > event every > > time it crosses certain vertical location thresholds. The target > > objects could then listen for the event which matches their > vertical > > location to test for a collision. > > > > For example, when the ball descends to the row containing > the paddle, > > it fires that event, and the paddle, receiving it, tests > for collision. > > When the ball ascends to the first row of bricks, those bricks each > > test for collsion. This might be a performance improvement over > > testing every object in the system all the time. > > > > P. > > > > >> -----Original Message----- > > >> From: [EMAIL PROTECTED] > > >> [mailto:flashcoders- [EMAIL PROTECTED] On > Behalf Of Holth, Daniel C. > > >> Sent: Wednesday, December 13, 2006 9:43 AM > > >> To: Flashcoders mailing list > > >> Subject: RE: [Flashcoders] AS2 OOP Class Structure for > simple pong > > type > > >> game > > >> > > >> > > >> That would be one way. Although it is rather limiting. I'm > > >> assuming that the ball will bounce whenever it hits an object. > > >> > > >> Perhaps create an array of bounceObjects[]; > > >> > > >> function addBounceObject(obj:Object):Number{ > > >> return bounceObjects.push(obj); } > > >> > > >> Then you could create your hit tracker. > > >> > > >> function checkCollisions(){ > > >> var len:Number = bounceObjects.length; > > >> // Loop through and check all objects hitting the ball > > >> for(var i:Number = 0; i < len; i++){ > > >> // Check each object hit ball > > >> if(this.hitTest(bounceObjects[i])){ > > >> > > >> this.bounce(); // Bounce the ball > > >> bounceObject[i].onHitByBall(); > > >> } > > >> } > > >> } > > >> > > >> Have your onEnterFrame functions run checkCollisions every time. > > That > > >> way you check for hits against the paddle, bricks etc. > > >> > > >> > > >> The bounceObject[i].onHitByBall() would execute a > function in that > > >> objects code that would say what to do when it was hit > by a ball. > > >> In > > the > > >> instance of a paddele do nothing, a brick - destory it! > > >> > > >> > > >> -Dan > > >> > > >> -----Original Message----- > > >> From: [EMAIL PROTECTED] > > >> [mailto:[EMAIL PROTECTED] > Behalf Of Paul > > >> Steven > > >> Sent: Wednesday, December 13, 2006 8:26 AM > > >> To: 'Flashcoders mailing list' > > >> Subject: RE: [Flashcoders] AS2 OOP Class Structure for > simple pong > > type > > >> game > > >> > > >> > > >> Thanks for the reply Dan > > >> > > >> Not quite sure how the Ball references the Paddle or > alternatively > > the > > >> CollisionController references the ball and paddle. > > >> > > >> My Game class creates the Ball and Paddle as follows: > > >> > > >> mcPaddle = new Paddle(mcReference, "paddle_mc", 50, 100, 289); > > >> > > >> var vBall_Object = new Ball(mcReference, "ball_mc", 100, > 160, 240); > > >> arrBallObjects.push(vBall_Object); > > >> > > >> If I wanted to give the Ball a reference to the paddle, > would I do > > >> something like this? (see last parameter) > > >> > > >> var vBall_Object = new Ball(mcReference, "ball_mc", 100, > 160, 240, > > >> mcPaddle); > > >> > > >> Thanks > > >> > > >> Paul > > >> > > >> > > >> -----Original Message----- > > >> From: [EMAIL PROTECTED] > > >> [mailto:[EMAIL PROTECTED] On Behalf Of > > Holth, > > >> Daniel C. > > >> Sent: 13 December 2006 14:14 > > >> To: Flashcoders mailing list > > >> Subject: RE: [Flashcoders] AS2 OOP Class Structure for > simple pong > > type > > >> game > > >> > > >> > > >> I would make the ball responsible for checking if it > collides with > > the > > >> paddle because the ball's behavior/state will change - not the > > paddle's, > > >> nor > > >> does the state of the 'game' really change. > > >> > > >> An alternative would be to create a CollissionControler.as that > > >> does > > all > > >> your hit testing for you. This may become useful when > you add the > > bricks > > >> or > > >> other objects that need to check for collisions. > > >> > > >> -Dan > > >> > > >> -----Original Message----- > > >> From: [EMAIL PROTECTED] > > >> [mailto:[EMAIL PROTECTED] > Behalf Of Paul > > >> Steven > > >> Sent: Wednesday, December 13, 2006 8:02 AM > > >> To: 'Flashcoders mailing list' > > >> Subject: [Flashcoders] AS2 OOP Class Structure for > simple pong type > > game > > >> > > >> > > >> I am creating a simple pong / breakout / arkanoid game > in AS2 and > > >> not sure how best to deal with the classes. > > >> > > >> So far I have a Game.as class, a Paddle.as class and a > Ball.as class. > > >> > > >> I need to detect when the ball (or balls) collide with > the Paddle. > > >> > > >> My question is, which class should check for this collision? > > >> > > >> Should the Game class do this or should I pass a reference to the > > Paddle > > >> into the Ball class so the Ball is able to check this collision > > itself? > > >> > > >> If it is the Game class, then I guess it is a case of > giving both > > >> the Paddle and Ball classes a method to return their current > > >> position and then letting the Game class compare these > positions to > > >> determine if a collision > > has > > >> occurred? > > >> > > >> If the Ball class needs to have a reference to the > Paddle passed to > > it, I > > >> am > > >> not sure how this is done. So I would appreciate any > advice on this. > > >> > > >> I appreciate there are probably a lot of different solutions to > > >> this, > > but > > >> I > > >> am trying to get off on the right footing with this OOP > programming. > > >> > > >> Many thanks > > >> > > >> Paul > > >> > > >> _______________________________________________ > > >> [email protected] > > >> To change your subscription options or search the archive: > > >> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > > >> > > >> Brought to you by Fig Leaf Software Premier Authorized Adobe > > >> Consulting and Training http://www.figleaf.com > > >> http://training.figleaf.com > > >> > > >> This e-mail and its attachments are intended only for the use of > > >> the > > >> addressee(s) and may contain privileged, confidential or > > >> proprietary information. If you are not the intended > recipient, or > > >> the employee > > or > > >> agent > > >> responsible for delivering the message to the intended > recipient, > > >> you > > are > > >> hereby notified that any dissemination, distribution, > displaying, > > >> copying, or use of this information is strictly > prohibited. If you > > >> have > > received > > >> this > > >> communication in error, please inform the sender immediately and > > delete > > >> and > > >> destroy any record of this message. Thank you. > > >> _______________________________________________ > > >> [email protected] > > >> To change your subscription options or search the archive: > > >> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > > >> > > >> Brought to you by Fig Leaf Software Premier Authorized Adobe > > >> Consulting and Training http://www.figleaf.com > > >> http://training.figleaf.com > > >> > > >> _______________________________________________ > > >> [email protected] > > >> To change your subscription options or search the archive: > > >> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > > >> > > >> Brought to you by Fig Leaf Software Premier Authorized Adobe > > >> Consulting and Training http://www.figleaf.com > > >> http://training.figleaf.com > > >> > > >> This e-mail and its attachments are intended only for the use of > > >> the > > >> addressee(s) and may contain privileged, confidential or > > >> proprietary information. If you are not the intended > recipient, or > > >> the employee > > or > > >> agent responsible for delivering the message to the intended > > recipient, > > >> you are hereby notified that any dissemination, distribution, > > displaying, > > >> copying, or use of this information is strictly > prohibited. If you > > have > > >> received this communication in error, please inform the sender > > >> immediately and delete and destroy any record of this message. > > >> Thank > > you. > > >> _______________________________________________ > > >> [email protected] > > >> To change your subscription options or search the archive: > > >> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > > >> > > >> Brought to you by Fig Leaf Software Premier Authorized Adobe > > >> Consulting and Training http://www.figleaf.com > > >> http://training.figleaf.com > > _______________________________________________ > > [email protected] > > To change your subscription options or search the archive: > > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > > > > Brought to you by Fig Leaf Software > > Premier Authorized Adobe Consulting and Training > > http://www.figleaf.com http://training.figleaf.com > > > > > > -- > > : : ) Scott > _______________________________________________ > [email protected] > To change your subscription options or search the archive: > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > > Brought to you by Fig Leaf Software > Premier Authorized Adobe Consulting and Training > http://www.figleaf.com > http://training.figleaf.com > _______________________________________________ [email protected] To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
