gistfile1.txt

// PuruBtn.m
#import "PuruBtn.h"
@implementation PuruBtn
- (void)_init
{
    [self schedule:@selector(tick:) interval: 1.0f];//初回は一秒後に実行
}
- (void)tick:(ccTime) dt
{
    //プルプルさせる処理
    id step0;
    id step1;
    id easeAction;
	step0 = [CCRotateBy actionWithDuration:0.1f angle:3];
	step1 = [CCRotateBy actionWithDuration:0.6f angle:-3];
    easeAction = [CCEaseElasticOut actionWithAction:step1];
	[self runAction:[CCSequence actions:step0, easeAction, nil]];

    //次回の実行をランダムで設定
	srand(rand()%99 + time(nil));
    float time = rand()%3;
    [self unschedule:@selector(tick:)];
    [self schedule:@selector(tick:) interval: time];//
}
@end