// Drawing Triangle and  filled Triangle
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64

#define OLED_RESET -1
#define SCREEN_ADRESS 0x3C
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

void setup(){
  Serial.begin(115200);
  // Initialize OLED Object
  if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADRESS)){
    Serial.println(F("SSD1306 allocation failed"));
    for(;;)
    {

    }
  }
  display.clearDisplay();
}

void loop(){
  
  // Draw Rectangle
  display.setCursor(0, 0);
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.println("Triangle");
  display.drawTriangle(30,15,0,60,60,60,WHITE);  // vertex1(30,15), vertex2(0,60), vertex3(60,60)
  display.display();
  delay(2000);
  display.clearDisplay();

  // Draw filled Rectangle
  display.setCursor(0, 0);
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.println("Filled Triangle");
  display.fillTriangle(30,15,0,60,60,60,WHITE);
  display.display();
  delay(2000);
  display.clearDisplay();

}