cocos2d sprite bouncing effect

Question

I'm making a game to spot the differences between 2 images. now i want to create a class 'Circle : CCSprite' to indicate the correct spot. I want to add a 'bouncing Effect' to the Circle(Just like iphone's warning modal window) I manually create CCActions, but the result is not as natural (since it's hard to control the duration and scale amount). Is there any better way to do this?

here is my code:

id up1 =[CCScaleBy actionWithDuration:0.2f scale:1.5f];
id down1 = [CCScaleBy actionWithDuration:0.2f scale:1 / 1.5f];
id up2 = [CCScaleBy actionWithDuration: 0.2f scale: 1.25f];
id down2 = [CCScaleBy actionWithDuration: 0.2f scale 1 / 1.25f];
id up3 = [CCScaleBy actionWithDuration: 0.2f scale 1.1f];
id down3 = [CCScaleBy actionWithDuration: 0.2f scale 1 / 1.1f];
[self runAction:[CCSequence actions:up1, down1, up2, down2, up3, down3, nil]];

score 3 · Accepted Answer · edited May 03 '13 at 11:40

3

Use the bounce or elastic easing methods built into Cocos2d. Google Cocos2d ease actions.

edited May 03 '13 at 11:40

Mubeen Iqbal

188
3
12

answered Jun 10 '11 at 08:45

Simon Lee

22,304
4
41
45

Hey, i've tried several times. but still no idea how to set up the time and scale amt. and how many up/down pairs should i use? – OMGPOP Jun 11 '11 at 10:32

score 0 · Answer 2 · answered Jun 10 '11 at 09:59

0

You can use CoreImage.

http://developer.apple.com/library/mac/#documentation/graphicsimaging/Conceptual/CoreImaging/ci_tasks/ci_tasks.html#//apple_ref/doc/uid/TP30001185-CH203-TPXREF101

answered Jun 10 '11 at 09:59

Naveen Thunga

3,675
2
24
31

He is talking about Cocos2D. It's not possible to use CoreImage in Cocos2D. – Sandro Meier Jun 10 '11 at 12:50
Thanks for your advise. I am suggesting what i know. :) – Naveen Thunga Jun 10 '11 at 13:03

cocos2d sprite bouncing effect

2 Answers2