Need guidance on how to make this class accept an object as an argument.

i have awesome led strips running shows, code rigid , unflexible trying convert oop style. using fastled library.
here small piece of working code wrote. make movingrainbow class accept crgb object argument, movingrainbow::start() ...

code: [select]


#include "arduino.h"
#include "fastled.h"
#include "mydefines.h"

#define data_pin_top 10
#define data_pin_bottom 16
#define num_leds 28
#define delta_index 10
#define start_index 0

crgb topleds[num_leds];
crgb bottomleds[num_leds];

//////////////////////////////moving rainbow class////////////////////////////////////////
class movingrainbow
{   
  int rainbowspeed;
  bool updateflag = 0;
 
  public:
  movingrainbow(int rspeed){
          rainbowspeed = rspeed;
  }
  void start(){
      fill_rainbow(topleds, num_leds, start_index, delta_index);
      fastled.show();
      updateflag = 1;
  }

  void off(){
      updateflag = 0;
  }   
           
};
////////////////////////////// end of moving rainbow class /////////////////////////////////

movingrainbow mrainbow(400);

void setup() {
    delay(2000);
    fastled.addleds<ws2812b, data_pin_top, grb>(topleds, num_leds);
    fastled.addleds<ws2812b, data_pin_bottom, grb>(bottomleds, num_leds);
    mrainbow.start();   
}

void loop() {
 

   
}


quote from: 7equivalents on jul 13, 2017, 07:17 pm

here small piece of working code wrote. make movingrainbow class accept crgb object argument, movingrainbow::start() ...

are saying want start() member function accept parameter: namely crgb object?

i'd start overloading start() function take 1 of objects:

code: [select]

void start(const crgb colors){
      fill_rainbow(colors, num_leds, start_index, delta_index);
      fastled.show();
      updateflag = 1;
  }

and call function:

code: [select]

mrainbow.start(topleds);

see if compiles...

Arduino Forum > Using Arduino > Programming Questions > Need guidance on how to make this class accept an object as an argument.

arduino