How do I make a scratch game? [+Another related question]

Hi everybody! ^^

I'm trying to develop a touch game for smartphones, the kind that should scratch the screen to find something hidden behind. I tried numerous times to do this using layers and some effects, but I couldn't.

Does anyone know how to do this in the Construct 2? SOLVED by LittleStain!

Now the problem is if exists a solution to reward the player when the object or layer is completely off?

One way would be to put the layer you want to scratch away on a layer with force own texture.

Then on touch create a sprite on that layer with blendmode set to destination out..

Thanks for the help, LittleStain. I thought about it, but didn't get a solution.

I could sort through the Canvas plugin developed by user R0J0hound.

If anyone has a solution without using plugin, will be very welcome as well.

My solution is without plugins, right?

https://dl.dropboxusercontent.com/u/485 ... ratch.capx

Great job, LittleStain! A simple and effective solution using native resources of C2.

Do you have an idea how we would reward the player on C2 when the object or layer is completely off?

Someone has a solution in this case to reward the player when the object or layer is completely off?

I'm newbie in C2 and I'm exploring its resources. ^^