A problem I thought I'd just tackle "later on" and now it is later on...
I have three layers behind the "main player" layer that scroll at different coefficients to create a parallax effect. The issue here is, then when I place objects in those layers, their "actual" position is different than what it is perceived to be when positioned in the frame editor because obviously, this object is already scrolling at a different rate.
To combat this, as a test on one of the layers, I manually observed how many pixels an object moved once the coefficient was set and then created an event to manually change the and Y positions of the layer - this works, but it's not ideal, as I'm hard-coding each change.
My question is, can anyone figure out the maths to create a formula to apply this change? Say, if my coefficient is set to 0.6, how can I figure out how much to adjust the layer by at frame start?