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Intro

This little example shows how to simply log state and event info.

The example is written in C, but the same idea is easy to adapt to any language. Before sending an event to the state machine, you grab a temp copy of its state ID so that you can check if it changed after the event dispatch.

If you are looking for more powerful logging abilities, see the modding-logging example.

User code of interest

MySm_StateId prev_state_id = sm->state_id;

printf("Sending `%s` event to sm\n", MySm_event_id_to_string(event_id));
MySm_dispatch_event(sm, event_id);

if (prev_state_id != sm->state_id)
{
    printf("State changed from `%s` to `%s`\n", MySm_state_id_to_string(prev_state_id), MySm_state_id_to_string(sm->state_id));
}

How to use

CD to this directory.

Run code gen:

dotnet script MySm.csx

You can compile and run with gcc with this command:

gcc main.c MySm.c Leds.c; ./a.out

Design