Function pointer array, passing values defined in array

Question

I'm trying to define an array of function pointers, where each function contains an int parameter. I'm also trying to set the value of that int parameter in the array declaration

So I have a TIMED_TASK struct, that will hold the function pointer and value I want to pass

typedef struct
{
   void (*proc)(int);  
   int delayMsec;     
} TIMED_TASK;

Then I have an array of TIMED_TASK s like this

static const TIMED_TASK attractSequence[] =
{
    { LightsOn, 1000 },
    { LightsOff, 500 },
    { EndSequence, 0 }
};

And I'd like it to call each of those functions in turn, passing the delay value to each function. This is where I expect I have the wrong syntax (I'm still learning C). I seemingly don't hit my LightsOn() routine at all

void loop() // It's an arduino project :)
{
  attractSequence[sequence];
  sequence++;
}

void LightsOn(int pause)
{
  // I do not hit this routine for some reason?
  Serial.print("LIGHTS ON"); 
  Serial.print(pause);
}

void LightsOff(int pause)
{
  Serial.print("LIGHTS OFF");
  Serial.print(pause);
}

It's entirely possible I'm taking the wrong approach here, but hopefully you can see what I'm trying to achieve. Any advice very welcome!

Answer 1

If you want to go through each item of attractSequence only once, you can use:

void loop()
{
   int count = sizeof(attractSequence)/sizeof(attractSequence[0]);
   for (int i = 0; i < count; ++i )
   {
     attractSequence[i].proc(attractSequence[i].delayMsec);
   }
}