Fix game crash when shockdelay is 0 bug#182

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MoonPadUSer wants to merge 2 commits intomasterfrom

fix-shockdelay-0-bug

Commits on Jul 30, 2020

Fix game crash when shockdelay is 0 bug
MoonPadUSer
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Commits on Aug 2, 2020

Rename _shockdelay to fixed_shockdelay and update comments
MoonPadUSer
committed