Set Action's target when it's created?

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Set Action's target when it's created?

(12 posts) (4 voices)

Started 2 years ago by bradparks
Latest reply from bradparks

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bradparks
Member

Hey there... I'm creating a bunch of actions at runtime, and some time later, want to run them... The actions have lots of different targets, and later on when I want to run them, I'd like to say:

[action run];

Where "action" is a sequence, and each child action has it's own target.

Is there anyway for me to do this other than adding a new property to my base action class for the "new" target? Any thoughts?

Thanks,

Brad

Posted 2 years ago #
jd
Member

What do you mean by target - a sprite? Each sprite can run actions, actions don't choose their targets. Am I misunderstanding the question?

Posted 2 years ago #
bradparks
Member
i basically do mean sprites... actions can run against any type of cocosnode, so that's why I didn't say sprites, but that's basically it... and I know that typically an object runs an action against itself, ie
```
[someObject runAction:someAction];
```
but all that does is basically set action.target = someObject, and then it runs the action....

I want to be able to do:
```
Action *anAction = [code to create some action];
anAction.target = someTarget;
```
but currently target (and originalTarget) are protected properties...

If this isn't supported by the current framework, then I'll just add another property to my base action class, like "staticTarget" or something like that, and override setTarget to use my new property....
Posted 2 years ago #

riq
Key Master

can't you use ?

[action startWithTarget:target];

you can also use the ActionManager API:

[[ActionManager sharedManager] addAction:action target:target paused:NO];

Posted 2 years ago #

jd
Member

Cool. I didn't know you could do it that way. Sorry if I gave misleading info.

Posted 2 years ago #
bradparks
Member
```
[action startWithTarget:target];
```
I don't think this would work, as I have multiple targets... and doesn't doing something like:
```
[myObject runAction:mySequence]
```
set the target for all child actions to "myObject"? I'm probably missing something, so I'll look into it and the ActionManager suggestion tonight to see if I can get them to work! thanks....
Posted 2 years ago #
Codemattic
Moderator

"I don't think this would work, as I have multiple targets.."

Are you trying to get multiple targets to use the same action simultaneously?

Posted 2 years ago #

riq
Key Master

If I understood correctly you have:

actions:
a1, a2, a3
and a sequence:
s( a1, a2, a3)

and each action has a different target:

s.target = t0
a1.target = t1
a2.target = t2
a3.target = t3

To do this you will have code a sort of decorator action. eg:

class ModifyTargetAction:
   initWithNewTaget:(id)newTarget innerAction:action
   {
   }

   startWithTarget:(id)oldTarget
   {
     [inner startWithTarget:newTarget];
   }

Posted 2 years ago #

bradparks
Member

hey riq... your summary is correct... that's what I'm intending... and a decorator sounds like a pretty good solution... it would just mean for every action I have there'd really be 2 actions instead.... the decorator and the original action, right? I'll look at this tonight... thanks for the suggestion!

Posted 2 years ago #
riq
Key Master

@bradparks: yes. there will be 2 actions: the decorator action, and the decorated action.

question: did you have it working in v0.8.1 ? or is this your 1st try to achieve this functionality ?

Posted 2 years ago #
bradparks
Member

hey riq... I just put this together in the last week, and I'm using the SVN release of cocos.... thanks...

Posted 2 years ago #
bradparks
Member

@riq: I tried the decorator approach, and it works great... thanks for the suggestion!

Posted 2 years ago #

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