Halloween 2019 ODROID-GO sketch

halloween2019.ino

/*
Halloween 2019 ODROID-GO sketch

- press A button: draw pumpkin with random color
- press B button: draw pumpkin with realistic color
- press MENU button: display QR code of source code link

*/

#include <odroid_go.h>

void setup() {
  GO.begin();
  GO.battery.setProtection(true);
}

uint16_t makeRandomColor() {
  return GO.lcd.color565(random(128, 255), random(128, 255), random(128, 255));
}

uint16_t pumpkinColor = 0xFFFF;
uint16_t stemColor = 0xFFFF;

void drawPumpkin() {
  GO.lcd.fillEllipse(160, 120, 80, 50, pumpkinColor);
  GO.lcd.fillTriangle(150, 70, 170, 70, 160, 75, stemColor);
  GO.lcd.fillTriangle(150, 70, 170, 70, 170, 40, stemColor);
  GO.lcd.fillTriangle(170, 40, 190, 50, 170, 70, stemColor);
}

void showBattery() {
  int pct = GO.battery.getPercentage();
  GO.lcd.fillRect(288, 2, 30, 10, BLACK);
  GO.lcd.progressBar(288, 2, 30, 10, pct);
}

void loop() {
  delay(100);
  GO.update();
  if (GO.BtnMenu.wasReleased()) {
    GO.lcd.clear();
    GO.lcd.qrcode("https://gist.github.com/yoursunny/f16caabaa5d05c3b73718a6823e1a1d5");
    return;
  } else if (GO.BtnA.wasReleased()) {
    pumpkinColor = makeRandomColor();
    stemColor = makeRandomColor();
  } else if (GO.BtnB.wasReleased()) {
    pumpkinColor = GO.lcd.color565(0xff, 0x75, 0x18);
    stemColor = GO.lcd.color565(0x44, 0x44, 0x39);
  } else {
    return;
  }
  GO.lcd.clear();
  drawPumpkin();
  showBattery();
}