Dynamic Path « cocos2d for iPhone

Dynamic Path

(2 posts) (2 voices)

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wololo
Member

I am working on a game where I move sprites on a path that may change (depending on the user):

Here's what I have so far:
1.) A Pathfinding algorithm that spits out waypoints
2.) Sprites move along the waypoints

Here's what I'm having trouble with:
How do I update the sprites to follow the new path when the path (waypoints) have been updated? I am using a simple NSNotification and doing the following:

//Pseudo code
[sprite stopAllActions]
for loop{
CCAction *myAction = [CCMoveTo ....]
[arrayOfActions addObject: myAction]
}

[sprite run sequence of actions: arrayOfActions]

//End pseudo code

Anyone have any ideas how I can go about this? Would using a Physics engine make sense?

Posted 7 months ago #
razvan_b
Member

I don't see what could be the problem that you have.
I assume that you would like to check after the sprite reaches a waypoint if a a new path has been established. If this is the case you can add a function call in the array right after each action that checks for this. If a new path is available then this function will modify the the array of actions accordingly.

//Pseudo code
[sprite stopAllActions]
for loop{
CCAction *myAction = [CCMoveTo ....]
[arrayOfActions addObject: myAction]
[arrayOfActions addObject: [CCCallFunc actionWithTarget:self selector:@selector(checkForNewPath) ]]

}

[sprite run sequence of actions: arrayOfActions]

//End pseudo code

Posted 7 months ago #

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