How make a SniperCrossair with Zoom?

I want to create a ... i call it SniperMode. I want it for my Platform Game. Like this here

at 01:49. Control=8 Direction and Button=Space to activate and deactivate SniperMode. How i make that you get a blackbackground with a Scope/Crossair in the middle that can also Zoom ? Also Important Thing is that my Screen Size is 800x600. How make that this Crossair/Scope don't continue move if its off Screen. I mean how check the Distance to Player from Crossair or whatever i need to do to Stop it than. Thank you for every Help

You could code this all yourself with some clever scaling, or

the MagicCam plug in will handle all the zooming you want to do. http://bit.ly/1agM2QH

For the black background/ crosshairs. You will want a layer with all your assets that is Invisible by default.

So, the basic flow will be:

When Space is pressed > Show Layer > Activate Cam

Press button > Zoom in

Press button > Zoom out

When space is pressed > Hide Layer > Deactivate Cam

Thanks. but if i place the Plugin in plugins folder of C2 and start Construct i get a error Message. HTML 5 exporter: Unable to load Plugin in Construct2/exporters/html5/plugins/Magic: Cannot open file common.js This plugin will not be available in the Editor.

see

you don't install to plugins - just drag the (unzipped) file onto construct 2 window.

So okay i tried but i can't create what i want,also example don't help me. How i make that the Backround and snipercrossair get visible and invisible if i press Space. I can only do in one Direction. Also how make a good Lens effect in the middle of the blackbackround