Sprite1 (Main)

when green flag clicked
wait until <mouse down?>
broadcast [move center v]
wait until <not <mouse down?>>
wait until <mouse down?>
go to x: (mouse x) y: (mouse y)
set [radius v] to [distance to Sprite2 v]
set [step v] to (((radius) * (3.141592)) / 360)
go to x: ([x position v] of [Sprite2 v]) y: (([y position v] of [Sprite2 v]) + (radius)
point in direction (90 v)
pen down
repeat (360)
    move (step) steps
    turn right (1) degrees
end
pen up

Sprite2:

when I receive [move center v]
go to [mouse-pointer v]

set [step v] to <  (([2]*(distanc)) * [3.141592])  / [360]>//distanc = radius

scubajerry wrote:

Looks close -
circumference is 2*pi*radius. It appears you have 1*pi*radius

set [step v] to <  (([2]*(distanc)) * [3.141592])  / [360]>//distanc = radius

Can you share your project?