I've been trying these things, among others, but the results are variations of what I described:
when holding the 'spawn' button it flickers, being set on and off
when releasing the 'nuke' it immediately resets
my real problem i believe is that all the 'On Touch ...' events trigger every cycle during mouse-clicking. which i find mildly disturbing.
Can I disable touch input when not on a touch device?
Is there a way to not register onTouch multiple times?