Digital Workshop

Help! This is driving me mad! How can you find out what object has been dropped onto another object. I have some basic sums using a random number and then an empty frame on which the correct object has to be dragged to equal the displayed answer (they all add up to ten). The random value is a variable and the draggable number is also a variable. How can I test what has been dragged onto the empty frame? I have been trying to sort this out all afternoon and I'm going round in circles so any help would be appreciated.

Oh also, is there any way of rejecting a dropped object if the value is wrong?

Thanks

Hello Harkers

I presume you have set your random number to be within a known range say 1 to 20
One idea (untested) but worth a think about is using the If function to test whether or not the dropped object belongs.

If you can send me your imp file, I'll have a look at it for you.

Cheers

Graham

The way that springs to mind for me...

Use a "This Object Dropped" trigger to add the variable contained in the relevant object to some test variable.

Then compare that test variable to your answer.

I've done a quick example. (I've haven't bothered to randomise the variables but the principle should work)

On the subject of rejecting the wrong answers I think you can only set up dropzones to accept/reject objects based on the object itself--not its contents.

I found a workaround using a "Mouse Down" trigger to test whether the object was correct as soon as you started dragging it.

Then I enabled or disabled the dropzone based on whether the answer was correct or not.

It's a bit more convoluted but I've got an example working.

Thanks for the replies everyone. One thing I forgot to say was that I am only uing Opus Pro 2.8 so I can't open the samples that you kindly put together! I've attached the sample page for your perusal. The idea will ultimately be to drag the correct number on to the question mark to make 10. Currently there is only one draggable object on there..

Thanks Bago and Leifee - using your prompts I've now managed to solve it. I set up a varibale which updates to the value of the object being dragged. i also get it's x,y position on mouse down. On the drop zone I then test if the random number plus the updated variable <>10 and if true send the object back to its original position.

The inability to reject drag and drop in script is a real pain when trying to test things! Bit of an oversight I reckon....

Cheers

Good on you Harkers

I downloaded your pub then installed ver 2.7 and could not remember how to get 2.8 So thought 2.7 would be OK

So had a look at your pub and couldn't figure out what you were trying to do and then my Internet connbection went down

Gald you have solved your problem in the meantime

I'm sure there is a simpler way, but if your solution works don't touch it. Always good advice.

Cheers

Graham