#include <Joystick.h>

Joystick_ Joystick;

const byte BR[3] = {1,2,3}; // Button array rows
const byte BC[3] = {4,5,6}; // Button array columns
const byte BK[3][3] = {{1,2,3},{4,5,6},{7,8,9}}; // Buttons controller keys
const bool Bstate[3][3] = {{0,0,0},{0,0,0},{0,0,0}}; // Buttons state

const byte RE[6][2] = {{7,8},{9,10},{11,12},{13,14},{15,16},{17,18}}; // Rotary encoders pins {A,B}
const byte REK[6][2] = {{10,11},{12,13},{14,15},{16,17},{18,19},{20,21}}; // Rotary encoders keys {-,+}
const bool REstate[6][2] = {{0,0},{0,0},{0,0},{0,0},{0,0},{0,0}}; // Rotary encoders state

void setup() {
	for(int i=0; i<6; i++) {
		pinMode(REl[i], INPUT_PULLUP);
		pinMode(REr[i], INPUT_PULLUP);
	}
	for(int i=0; i<6; i++) {
		pinMode(BR[i], INPUT);
		pinMode(BC[i], INPUT_PULLUP);
	}
	
	Joystick.begin()
}

void readMatrix() {
	for (int i=0; i<3; i++) {
		pinMode(BC[i], OUTPUT);
		digitalWrite(BC[i], LOW);
		
		for (int j=0; j<3; j++) {
			pinMode(BR[j], INPUT_PULLUP);
			int state = digitalRead(BR[j]);
			if (state != Bstate[j][i]) {
				Joystick.setButton(BK[j][i], state);
				Bstate[j][i] = state;
			}
			pinMode(BR[j], INPUT);
		}
		
		pinMode(BC[i], INPUT);
	}
}

void readEncoders() {
	
}

void loop() {
	readMatrix();
}