cocos2d for iPhone

A fast, easy to use, free, and community supported 2D game engine

1. 

   neurofluid
   Member

   Hi All,

   I've been learning Objective-C and Cocos2d for a month or so now and am working on a card game and have run into something I can't figure out.

   In my game, the player has a series of cards (atlas sprite objects) face-down and needs to be able to select only two (any two) of the cards.

   The player selects the first card and an animation plays where it flips over, the player then has to select the second card which then turns over. Where I'm having difficulty is I want to 'hold' the two cards being displayed for 3 seconds, and then return them to face down. This part works fine, but the player can keep touching cards and turning them all over. I need to find a way of disabling touches for that 3 seconds after the two cards have been selected. (In electronics, it's called 'debouncing a switch' - getting an event to happen on the first and only button push).

   I've had a look at ccTouchesBegin/End etc and feel that the solution's in there somewhere but I just can't get my head around it.

   Any hints or help would be greatly appreciated.

   Thanks!

   Posted 2 years ago #
2. 

   PhilM
   Member

   One possible way, although not necessarily the best way, would be to have a boolean var say 'allowCardSelect' which is set true by default, and you set false once the 2nd card is clicked, and kept like that until it has played its flip animation. Resetting it to true when you want to enable card clicks again.

   Then in your touch code where you trigger the card flip, check if the bool is true, and only continue if it is.

   Does that make sense? Hope so..

   Posted 2 years ago #
3. 

   neurofluid
   Member

   That's actually what I tried to do, and it sort of works, but seems to block touches after the 3rd or 4th try. I put the logic in the ccTouchesEnded, but also tried the Began block to no avail

   Posted 2 years ago #
4. 

   gerch
   Member

   How about you try something like this:

   int counter = 0;

   touchesBegin {
   if (counter <= 1) {
   // code for touching the card
   // if touch was successfull
   counter++;
   }
   }

   and in the method with the timer that turns it back around you just say
   counter--;

   hope it helps

   Posted 2 years ago #
5. 

   neurofluid
   Member

   I solved this by creating a global boolean disableTouches. When a touch was detected, I set the boolean to true. I had a schedule running that kept checking that boolean, and when it was true, set isTouchEnabled for the scene to false.

   I had method that was called when my playing card animation finished playing (as part of a sequence: flip_card, delay_two_seconds, turn_touches_on) which would then set that boolean to false after the card's animation finished playing, which then enabled touches again, ready for the player's next selection.

   Posted 2 years ago #

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