// Program to exercise the MD_Parola library
//
// Demonstrates how to set up and use the user defined sprites for
// text animations.
//
// Speed for the display is controlled by a pot on SPEED_IN analog input.
// Digital switches used for control of text justification and invert mode.
// UI switches are normally HIGH.
//
// UISwitch library can be found at https://github.com/MajicDesigns/MD_UISwitch
// MD_MAX72XX library can be found at https://github.com/MajicDesigns/MD_MAX72XX
//

#include <MD_Parola.h>
#include <MD_MAX72xx.h>
#include <SPI.h>
#include "MD_UISwitch.h"

// Define the number of devices we have in the chain and the hardware interface
// NOTE: These pin numbers will probably not work with your hardware and may
// need to be adapted
#define HARDWARE_TYPE MD_MAX72XX::PAROLA_HW
#define MAX_DEVICES 6

#define CLK_PIN   18
#define DATA_PIN  23
#define CS_PIN    5

// HARDWARE SPI
MD_Parola P = MD_Parola(HARDWARE_TYPE, CS_PIN, MAX_DEVICES);
// SOFTWARE SPI
//MD_Parola P = MD_Parola(HARDWARE_TYPE, DATA_PIN, CLK_PIN, CS_PIN, MAX_DEVICES);

// Turn on debug statements to the serial output
#define  DEBUG_ENABLE  0

#if  DEBUG_ENABLE
#define DEBUG(s, x) { Serial.print(F(s)); Serial.print(x); }
#define DEBUGS(x) Serial.print(F(x))
#define DEBUGX(x) Serial.println(x, HEX)
#else
#define DEBUG(s, x)
#define DEBUGS(x)
#define DEBUGX(x)
#endif

// User interface pin and switch definitions
const uint8_t SPEED_IN = A5;      // control the speed with an external pot
const uint8_t JUSTIFY_SET = 6;    // change the justification
const uint8_t INVERSE_SET = 9;    // set/reset the display to inverse

uint8_t uiPins[] = { JUSTIFY_SET, INVERSE_SET };

const uint16_t PAUSE_TIME = 1000; // in milliseconds
const uint8_t SPEED_DEADBAND = 5; // in analog units

// Global variables
uint8_t	curString = 0;
const char *msg[] =
{
  "Parola Sprites",
  "Animation"
};

MD_UISwitch_Digital uiSwitches(uiPins, ARRAY_SIZE(uiPins));

// Sprite Definitions
const uint8_t F_PMAN1 = 6;
const uint8_t W_PMAN1 = 8;
const uint8_t PROGMEM pacman1[F_PMAN1 * W_PMAN1] =  // gobbling pacman animation
{
  0x00, 0x81, 0xc3, 0xe7, 0xff, 0x7e, 0x7e, 0x3c,
  0x00, 0x42, 0xe7, 0xe7, 0xff, 0xff, 0x7e, 0x3c,
  0x24, 0x66, 0xe7, 0xff, 0xff, 0xff, 0x7e, 0x3c,
  0x3c, 0x7e, 0xff, 0xff, 0xff, 0xff, 0x7e, 0x3c,
  0x24, 0x66, 0xe7, 0xff, 0xff, 0xff, 0x7e, 0x3c,
  0x00, 0x42, 0xe7, 0xe7, 0xff, 0xff, 0x7e, 0x3c,
};

const uint8_t F_PMAN2 = 6;
const uint8_t W_PMAN2 = 18;
const uint8_t PROGMEM pacman2[F_PMAN2 * W_PMAN2] =  // ghost pursued by a pacman
{
  0x00, 0x81, 0xc3, 0xe7, 0xff, 0x7e, 0x7e, 0x3c, 0x00, 0x00, 0x00, 0xfe, 0x7b, 0xf3, 0x7f, 0xfb, 0x73, 0xfe,
  0x00, 0x42, 0xe7, 0xe7, 0xff, 0xff, 0x7e, 0x3c, 0x00, 0x00, 0x00, 0xfe, 0x7b, 0xf3, 0x7f, 0xfb, 0x73, 0xfe,
  0x24, 0x66, 0xe7, 0xff, 0xff, 0xff, 0x7e, 0x3c, 0x00, 0x00, 0x00, 0xfe, 0x7b, 0xf3, 0x7f, 0xfb, 0x73, 0xfe,
  0x3c, 0x7e, 0xff, 0xff, 0xff, 0xff, 0x7e, 0x3c, 0x00, 0x00, 0x00, 0xfe, 0x7b, 0xf3, 0x7f, 0xfb, 0x73, 0xfe,
  0x24, 0x66, 0xe7, 0xff, 0xff, 0xff, 0x7e, 0x3c, 0x00, 0x00, 0x00, 0xfe, 0x7b, 0xf3, 0x7f, 0xfb, 0x73, 0xfe,
  0x00, 0x42, 0xe7, 0xe7, 0xff, 0xff, 0x7e, 0x3c, 0x00, 0x00, 0x00, 0xfe, 0x7b, 0xf3, 0x7f, 0xfb, 0x73, 0xfe,
};

const uint8_t F_WAVE = 14;
const uint8_t W_WAVE = 14;
const uint8_t PROGMEM wave[F_WAVE * W_WAVE] =  // triangular wave / worm
{
  0x08, 0x04, 0x02, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x40, 0x20, 0x10,
  0x10, 0x08, 0x04, 0x02, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x40, 0x20,
  0x20, 0x10, 0x08, 0x04, 0x02, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x40,
  0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
  0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40,
  0x40, 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20,
  0x20, 0x40, 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, 0x02, 0x04, 0x08, 0x10,
  0x10, 0x20, 0x40, 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, 0x02, 0x04, 0x08,
  0x08, 0x10, 0x20, 0x40, 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, 0x02, 0x04,
  0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, 0x02,
  0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01,
  0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02,
  0x02, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x40, 0x20, 0x10, 0x08, 0x04,
  0x04, 0x02, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x40, 0x20, 0x10, 0x08,
};

const uint8_t F_ROLL1 = 4;
const uint8_t W_ROLL1 = 8;
const uint8_t PROGMEM roll1[F_ROLL1 * W_ROLL1] =  // rolling square
{
  0xff, 0x8f, 0x8f, 0x8f, 0x81, 0x81, 0x81, 0xff,
  0xff, 0xf1, 0xf1, 0xf1, 0x81, 0x81, 0x81, 0xff,
  0xff, 0x81, 0x81, 0x81, 0xf1, 0xf1, 0xf1, 0xff,
  0xff, 0x81, 0x81, 0x81, 0x8f, 0x8f, 0x8f, 0xff,
};

const uint8_t F_ROLL2 = 4;
const uint8_t W_ROLL2 = 8;
const uint8_t PROGMEM roll2[F_ROLL2 * W_ROLL2] =  // rolling octagon
{
  0x3c, 0x4e, 0x8f, 0x8f, 0x81, 0x81, 0x42, 0x3c,
  0x3c, 0x72, 0xf1, 0xf1, 0x81, 0x81, 0x42, 0x3c,
  0x3c, 0x42, 0x81, 0x81, 0xf1, 0xf1, 0x72, 0x3c,
  0x3c, 0x42, 0x81, 0x81, 0x8f, 0x8f, 0x4e, 0x3c,
};

const uint8_t F_LINES = 3;
const uint8_t W_LINES = 8;
const uint8_t PROGMEM lines[F_LINES * W_LINES] =  // spaced lines
{
  0xff, 0xff, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00,
  0xff, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00,
  0xff, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff,
};

const uint8_t F_ARROW1 = 3;
const uint8_t W_ARROW1 = 10;
const uint8_t PROGMEM arrow1[F_ARROW1 * W_ARROW1] =  // arrow fading to center
{
  0x18, 0x3c, 0x7e, 0xff, 0x7e, 0x00, 0x00, 0x3c, 0x00, 0x00,
  0x18, 0x3c, 0x7e, 0xff, 0x00, 0x7e, 0x00, 0x00, 0x18, 0x00,
  0x18, 0x3c, 0x7e, 0xff, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x18,
};

const uint8_t F_ARROW2 = 3;
const uint8_t W_ARROW2 = 9;
const uint8_t PROGMEM arrow2[F_ARROW2 * W_ARROW2] =  // arrow fading to outside
{
  0x18, 0x3c, 0x7e, 0xe7, 0x00, 0x00, 0xc3, 0x00, 0x00,
  0x18, 0x3c, 0x7e, 0xe7, 0xe7, 0x00, 0x00, 0x81, 0x00,
  0x18, 0x3c, 0x7e, 0xe7, 0x00, 0xc3, 0x00, 0x00, 0x81,
};

const uint8_t F_SAILBOAT = 1;
const uint8_t W_SAILBOAT = 11;
const uint8_t PROGMEM sailboat[F_SAILBOAT * W_SAILBOAT] =  // sail boat
{
  0x10, 0x30, 0x58, 0x94, 0x92, 0x9f, 0x92, 0x94, 0x98, 0x50, 0x30,
};

const uint8_t F_STEAMBOAT = 2;
const uint8_t W_STEAMBOAT = 11;
const uint8_t PROGMEM steamboat[F_STEAMBOAT * W_STEAMBOAT] =  // steam boat
{
  0x10, 0x30, 0x50, 0x9c, 0x9e, 0x90, 0x91, 0x9c, 0x9d, 0x90, 0x71,
  0x10, 0x30, 0x50, 0x9c, 0x9c, 0x91, 0x90, 0x9d, 0x9e, 0x91, 0x70,
};

const uint8_t F_HEART = 5;
const uint8_t W_HEART = 9;
const uint8_t PROGMEM heart[F_HEART * W_HEART] =  // beating heart
{
  0x0e, 0x11, 0x21, 0x42, 0x84, 0x42, 0x21, 0x11, 0x0e,
  0x0e, 0x1f, 0x33, 0x66, 0xcc, 0x66, 0x33, 0x1f, 0x0e,
  0x0e, 0x1f, 0x3f, 0x7e, 0xfc, 0x7e, 0x3f, 0x1f, 0x0e,
  0x0e, 0x1f, 0x33, 0x66, 0xcc, 0x66, 0x33, 0x1f, 0x0e,
  0x0e, 0x11, 0x21, 0x42, 0x84, 0x42, 0x21, 0x11, 0x0e,
};

const uint8_t F_INVADER = 2;
const uint8_t W_INVADER = 10;
const uint8_t PROGMEM invader[F_INVADER * W_INVADER] =  // space invader
{
  0x0e, 0x98, 0x7d, 0x36, 0x3c, 0x3c, 0x36, 0x7d, 0x98, 0x0e,
  0x70, 0x18, 0x7d, 0xb6, 0x3c, 0x3c, 0xb6, 0x7d, 0x18, 0x70,
};

const uint8_t F_ROCKET = 2;
const uint8_t W_ROCKET = 11;
const uint8_t PROGMEM rocket[F_ROCKET * W_ROCKET] =  // rocket
{
  0x18, 0x24, 0x42, 0x81, 0x99, 0x18, 0x99, 0x18, 0xa5, 0x5a, 0x81,
  0x18, 0x24, 0x42, 0x81, 0x18, 0x99, 0x18, 0x99, 0x24, 0x42, 0x99,
};

const uint8_t F_FBALL = 2;
const uint8_t W_FBALL = 11;
const uint8_t PROGMEM fireball[F_FBALL * W_FBALL] =  // fireball
{
  0x7e, 0xab, 0x54, 0x28, 0x52, 0x24, 0x40, 0x18, 0x04, 0x10, 0x08,
  0x7e, 0xd5, 0x2a, 0x14, 0x24, 0x0a, 0x30, 0x04, 0x28, 0x08, 0x10,
};

const uint8_t F_CHEVRON = 1;
const uint8_t W_CHEVRON = 9;
const uint8_t PROGMEM chevron[F_CHEVRON * W_CHEVRON] =  // chevron
{
  0x18, 0x3c, 0x66, 0xc3, 0x99, 0x3c, 0x66, 0xc3, 0x81,
};

const uint8_t F_WALKER = 5;
const uint8_t W_WALKER = 7;
const uint8_t PROGMEM walker[F_WALKER * W_WALKER] =  // walking man
{
    0x00, 0x48, 0x77, 0x1f, 0x1c, 0x94, 0x68,
    0x00, 0x90, 0xee, 0x3e, 0x38, 0x28, 0xd0,
    0x00, 0x00, 0xae, 0xfe, 0x38, 0x28, 0x40,
    0x00, 0x00, 0x2e, 0xbe, 0xf8, 0x00, 0x00, 
    0x00, 0x10, 0x6e, 0x3e, 0xb8, 0xe8, 0x00,
};

struct 
{
  const uint8_t *data;
  uint8_t width;
  uint8_t frames;
} 
sprite[] =
{
  { walker, W_WALKER, F_WALKER },
  { invader, W_INVADER, F_INVADER },
  { chevron, W_CHEVRON, F_CHEVRON },
  { heart, W_HEART, F_HEART },
  { arrow1, W_ARROW1, F_ARROW1 },
  { steamboat, W_STEAMBOAT, F_STEAMBOAT },
  { fireball, W_FBALL, F_FBALL },
  { rocket, W_ROCKET, F_ROCKET },
  { roll2, W_ROLL2, F_ROLL2 },
  { pacman2, W_PMAN2, F_PMAN2 },
  { lines, W_LINES, F_LINES },
  { roll1, W_ROLL1, F_ROLL1 },
  { sailboat, W_SAILBOAT, F_SAILBOAT },
  { arrow2, W_ARROW2, F_ARROW2 },
  { wave, W_WAVE, F_WAVE },
  { pacman1, W_PMAN1, F_PMAN1 }
};

void doUI(void)
{
  // set the speed if it has changed - Analog read
  {
    int16_t	speed = map(analogRead(SPEED_IN), 0, 1023, 0, 100);

    if ((speed >= ((int16_t)P.getSpeed() + SPEED_DEADBAND)) ||
        (speed <= ((int16_t)P.getSpeed() - SPEED_DEADBAND)))
    {
      P.setSpeed(speed);
      DEBUG("\nChanged speed to ", P.getSpeed());
    }
  }

  // now process the switch digital inputs
  if (uiSwitches.read() == MD_UISwitch::KEY_PRESS) // a switch was pressed!
  {
    switch (uiSwitches.getKey())
    {
      case JUSTIFY_SET: // TEXT ALIGNMENT - nothing on initialise
      {
        static uint8_t  curMode = 1;
        textPosition_t  textAlign[] =
        {
          PA_CENTER,
          PA_LEFT,
          PA_RIGHT
        };

        DEBUG("\nChanging alignment to ", curMode);
        P.setTextAlignment(textAlign[curMode]);
        P.displayReset();
        curMode = (curMode + 1) % ARRAY_SIZE(textAlign);
      }
      break;

      case INVERSE_SET:  // INVERSE
        P.setInvert(!P.getInvert());
      break;
    }
  }
}

void setup(void)
{
#if DEBUG_ENABLE
  Serial.begin(57600);
  DEBUGS("[Parola Test]");
#endif

  // user interface switches
  uiSwitches.begin();

  // Parola object
  P.begin();
  P.displayText(msg[curString], PA_CENTER, P.getSpeed(), PAUSE_TIME, PA_SPRITE, PA_SPRITE);
  P.setSpriteData(pacman1, W_PMAN1, F_PMAN1, pacman2, W_PMAN2, F_PMAN2);
  curString++;
}

void loop(void)
{
  static uint8_t  curFX = 0;

  doUI();

  if (P.displayAnimate())
  {
    if (curString == ARRAY_SIZE(msg))
    {
      P.setSpriteData(sprite[curFX].data, sprite[curFX].width, sprite[curFX].frames,  // entry sprite
                      sprite[curFX].data, sprite[curFX].width, sprite[curFX].frames); // exit sprite
      curFX = (curFX + 1) % ARRAY_SIZE(sprite);
      curString = 0;
    }

    P.setTextBuffer(msg[curString]);
    P.displayReset();
    curString++;
  }
}