Buttons and Sprites « cocos2d for iPhone

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Buttons and Sprites

(11 posts) (7 voices)

Started 2 years ago by Dakiu
Latest reply from Motivated Creation

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Dakiu
Member

Hello everyone, i made a class called "csprite" (character sprite) it's the class of the main character of my game, who you move, but for move it i wanna put in the screen buttons (up,down,left,right) for those i use the MenuItem, 4 items with their respectives selector.

Each time you press the button the character moves 10 pixels, but, the problem is the character moves only once, and for move again you need press again the button.
How can i made, the character moves while you hold the button down??
I mean, if you press the button and hold it, the character moves until you release.

Posted 2 years ago #
ob1
Member

I would set a boolean to YES or NO when the button is pressed / released.

Then I would check the state of that boolean in a scheduler and move the character accordingly.

Posted 2 years ago #
Frank84
Member

MenuItems only send a response on touchEnded, which is why you pass it only a single selector. For your example, you need it to responsd to touchMoved. This touch is being tracked internally of Menu, so you could modify the interface and implementation to expose it. An alternative approach is to get rid of the Menu and just do your own bounds checking in a Layer's touchBegan, touchMoved, and touchEnded and then responded to it in the layer. Menus are definitely my least favorite part of cocos, but they're sufficient.

Posted 2 years ago #
ob1
Member

@Frank84 I don't understand why you would track touchMoved on a button.

Personally, I modified MenuItemImage and exposed the "selected" property. I think that should work in the case Dakiu is exposing.

Of course he could implement one of those virtual joystick and then use touchMoved.

Posted 2 years ago #
Dakiu
Member

what virtual joystick? can you explain me?
thanks

Posted 2 years ago #
ob1
Member

http://nitpickgaming.com/wp-content/uploads/2009/06/photo-31.jpg

This kind of stuff they have in many games.

Posted 2 years ago #
Dakiu
Member

and how can i do that? there is a code something like "atlassprite" or "menuitem"? or i have to do it all by myself?
a tutorial maybe?
anyway thanks!

Posted 2 years ago #
Codemattic
Moderator

@Dakiu, check out these discussions for ideas:

http://www.cocos2d-iphone.org/forum/topic/1154
http://www.cocos2d-iphone.org/forum/topic/1418

Posted 2 years ago #
mDiak47
Member

Since the csprite is running on a game loop you can simple create a speed and with the x or y value use += or -= to contunuely add the pixels.

Posted 1 year ago #
FGringo
Member

Hi!

I made a fast project that can help you.
Just access my blog:

My Blog: fgringo.blogspot.com

hope it helps.

Posted 7 months ago #

Motivated Creation
Member

I actually had to do something similar to this for my game.

- (void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    CGRect spriteRect = [sprite boundingBox];

    UITouch *touch = [touches anyObject];

    CGPoint location = [touch previousLocationInView:[touch view]];
    location = [[CCDirector sharedDirector] convertToGL:location];

    if (CGRectContainsPoint(spriteRect, location))
    {
        id move = [CCMoveBy actionWithDuration:0.05 position:10];
        [sprite runAction:[CCRepeatForever actionWithAction:move]];
    }
}

Buttons and Sprites

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