// Example sketch for the MPU-6050.
//
// Version 1, 9 August 2021, by Koepel with help from Wokwi community.
//
// Start the simulation and click on the MPU-6050 module to change the values.
//
// Note:
//   This example does not use a library with quaternations for the 3D orientation.
//   The values are directly read from the MPU-6050 and are used to rotate a cube.
//   It is just a fun example. The rotation of the cube is not according to the
//   physical values of the accelerometer and the gyro.
//
// Based on:
//   (1)
//     3D_Cube for Arduino OLED module by Colin Ord, 9/1/2015
//     A port of my (Colin Ord) original JustBasic Cube_3D demo to the Arduino Uno using U8G library.
//     http://colinord.blogspot.com/2015/01/arduino-oled-module-with-3d-demo.html
//     (no known copyrights)
//
//   (2)
//     MPU-6050 Short Example Sketch
//     By Arduino User JohnChi
//     August 17, 2014
//     Public Domain
//     https://playground.arduino.cc/Main/MPU-6050/#short
// 
//   (3)
//     The Adafruit GFX library with the SSD1306 driver.
//

#include <Wire.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_GFX.h>
#include <Adafruit_NeoPixel.h>

Adafruit_SSD1306 display( 128, 64);   // 128 pixels width, 64 pixels height



int potpin = A3;
// Set the origin in the middle of the display
int range = 0;
int rangernd = 0;
int dive = 10;
int dive1 = 0;


const float viewDistance = 150.0;     // higher for less perspective, lower for more.


void setup()
{
  Serial.begin( 115200);

  // Initialize the OLED display and test if it is connected.
  if( !display.begin( SSD1306_SWITCHCAPVCC, 0x3C)) 
  {
    Serial.println(F( "SSD1306 allocation failed"));
    for(;;);                                   // halt the sketch if error encountered
  }


// bar1a = random(0,22);
display.clearDisplay();
  
}

void randplus(){
  rangernd = range + random(0,3);
}

void randminus(){
  rangernd = range - random(0,3);
}

void loop()
{
  range = analogRead(potpin);     
  range = map(range, 0, 1023, 0, 128);
  // Start with a empty buffer
display.drawCircle(64, 0, range, SSD1306_WHITE );  
display.clearDisplay();

Serial.print("range ");
Serial.println(range);

for(int i = 0; i <= 128; i++){
  range = analogRead(potpin);     
  range = map(range, 0, 1023, 0, 128);
switch (random(1,2)) {
        //select size of phrase
        case 1:randplus(); break;
        case 2:randminus(); break;
        }
rangernd;
display.fillRect(i, 0, i + 8, range - (range/dive), SSD1306_WHITE );
display.drawCircle(64, 0, range, SSD1306_WHITE );

Serial.print("range for ");
Serial.println(range);
Serial.print("i ");
Serial.println(i);

if(i < 64){
dive = dive+1;
}
if(i > 64){
dive = dive-1;
}
if(dive == 0){
  dive=1;
}
else if(dive >=128){
  dive=128;
}

i=i+8;

}
display.display();

}