(AGK version: 2.0.20)
Submitted: 2016-09-10 21:45:11
// written in AGk V2.20

// set window properties
SetWindowSize( 800, 480, 0 )
SetVirtualResolution( 800, 480 )

my_tween = CreateTweenCustom(2.0)
SetTweenCustomFloat1(my_tween,0.0,1.0,0)

do

        // press left mouse button or tap screen to start
        if GetPointerPressed() = 1
                PlayTweenCustom(my_tween,0.0)
        endif

        // get the tween value
        tween_value# = GetTweenCustomFloat1(my_tween)

        print("press left mouse button or tap screen to start")
        print(tween_value#)

        UpdateAllTweens( getframetime() )

        sync()

loop