Box2D Forums

Is there a global way to set "allowDragging = false" for all objects added to the world or does allowDragging have to be set to false for each object?

You can set allowDragging = false on the wck.World object. This will disable dragging globally.

Or you could extend BodyShape, override create() to disable dragging conditionally, then extend that instead of BodyShape directly.

Thanks for the suggestions. I forgot to mention that I did see allowDragging in the world class and tried allowDragging = false on the wck.World. There were no errors so I thought it should work but I was able to drag objects.

After I posted my previous post and some thinking, based on your past suggestions, extending BodyShape and setting allowDragging there was one possibility. Of course, as a programmer you tend to go for the simplest solution but if the first method doesn't work then I'll go with the second.

My objects are extending BodyShape and I looked at the BodyShape class and the default allowDragging is set to true. I'm wondering, does your first suggestion actually work or did my engine perhaps introduce something that prevented disabling global dragging. I looked at the WCK demo but couldn't really figure out where to put allowDragging = false for the wck.World to test disabling global drag.

I did a little test. If I create myWorld in Flash with base class wck.World then myWorld.allowDragging = false works as expected. If I declare myWorld = new wck.World in the code then other things I've tested seem to work but not allowDragging. Strange.

When I trace myWorld.allowDragging on StepEvent.STEP it is set to false. Strange.

I did come across something similar with joints (where "drag and drop" works but code doesn't) but I'll post that later.

Hmm... I'm going to have to look at allowDragging & make sure it works as intended, been a while.

For now, why don't use just override "handleDragStart(e:Event):void" in your world class so it's an empty function.

That could work. In my current game, I only have one dynamic object so I only have to set one allowDragging. But later on that might be preferable.

Not sure if this has anything to do with the global allowDragging issue but during a quick test all but two of the joint component properties disappeared from the component inspector (Flash CS4). After a restart those came back, but ... sometimes Flash seem to do some strange things.

I took a look at allowDragging again because I was able to change gravity with MyWorld.gravityX and .gravityY. But even when I set
in wck.World to false, it doesn't seem to have any effect.

Im wondering, in wck.World:
isn't the last line supposed to check for the wck.World allowDragging? If I add to check for allowDragging also, then it works, even in my class that extends WCK with MyWorld.allowDragging.