check if our shake time is one or two frames too long

[jon12156]

I wonder if we are off by one or two frames for all garbage shaking.
the panel de pon shake counter counts upwards, and starts at 1 frame when the garbage is 1 row above it's landing space

in panel attack. the counter starts at the initial number of frames the screen is supposed to shake, and it starts at this initial number 1 frame after the garbage occupies it's landing space.

[jon12156]

[jon12156]

ok so we are shaking the right number of frames, but we start shaking 2 frames too late!