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

#define M_PI 3.141592653589793

double N = 8;
double N2 = N*2;
double R = 30;
class object {
  public :
  double x;
  double y;
  double z;
}

const int SCREEN_WIDTH = 128; // OLED display width, in pixels
const int SCREEN_HEIGHT = 64;
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

void setup() {
  Serial.begin(9600);

  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64
    Serial.println(F("SSD1306 allocation failed"));
    while(true);
  }
  object obj = []; 
  for(int i = 0; i<=N; i+=1){
    obj[i] = [];
    for(int j = 0; j<N2; j+=1){
      double Theta = M_PI / N * i;
      double Phi = 2*M_PI / N2 * j;
      obj[i][j].x = sin(Theta) * sin(Phi) * R;
      obj[i][j].y = cos(Theta) * R;
      obj[i][j].z = sin(Theta) * cos(Phi) * R;
    }
  }
  
}

void loop() {
  // 画面表示をクリア
  display.clearDisplay();

  for(int i = 0; i<=N; i+=1){
    for(int j = 0; j<N2; j+=1){
      display.drawPixel(obj[i][j].x,obj[i][j].y, WHITE);
    }
  }

  display.display();

  delay(1000);
}