state_machine: include prev_state_name #69
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state_machine:
I added another field on the state_machine for the previous state name.
The use-case for me personally was using it to calculate unique behavior based on where we came from. For example I want to enter jump state from wallgrab state, but I want the velocity direction to be slightly tweaked in the jump state's update method if we came from wallgrab.
Let me know your thoughts!