Wireless LED Lamp with IR Remote Control

#include <IRremote.h>

int RECV_PIN = 12;
int ledPins[] = {5, 6, 9};

IRrecv irrecv(RECV_PIN);
decode_results results;

int on = 0;
int mode = 1;
int minmode = 1;
int maxmode = 2;
int ledcolor = 0;
int minledcolor = 0;
int maxledcolor = 2;
unsigned long last = millis();

int brightness = 0;
int fadeAmount = 5;


void setup() {
  int i;
  for (i = 0; i < (sizeof(ledPins)/sizeof(int)); i = i + 1) {
    pinMode(ledPins[i], OUTPUT);
  }

  irrecv.enableIRIn();
}

void led_active_control(int led) {
  leds_off();
  digitalWrite(ledPins[led], HIGH);
}

void leds_off() {
  int i;
  for (i = 0; i < (sizeof(ledPins)/sizeof(int)); i = i + 1) {
    digitalWrite(ledPins[i], LOW);
  }
}


void loop() {
  if (irrecv.decode(&results)) {
 
    if (millis() - last > 250) {
      Serial.println(results.value, HEX);
      if(results.value == 0xFF38C7 || results.value == 0x58A310EF) {
        on = !on;
      }
      
      if(results.value == 0xFF10EF) {
        if(ledcolor > minledcolor) { 
          ledcolor -= 1;
        }
      }
      
      if(results.value == 0xFF5AA5) {
        if(ledcolor < maxledcolor) { 
          ledcolor += 1;
        }
      }

      if(results.value == 0xFF4AB5) {
        if(mode > minmode) { 
          mode -= 1;
        }
      }

      if(results.value == 0xFF18E7) {
        if(mode < maxmode) { 
          mode += 1;
        }
      }
    }
    last = millis();
    irrecv.resume();
  }
  
  if(on) {
      if(mode == 1) {
        led_active_control(ledcolor);
      } else if(mode == 2) {
        leds_off();
        
        analogWrite(ledPins[ledcolor], brightness);

        brightness = brightness + fadeAmount;

        if (brightness <= 0 || brightness >= 255) {
          fadeAmount = -fadeAmount;
        }
        delay(30);
      }
      
    } else {
      leds_off();
    }
}