Snake Game op 16x16 LED-matrix met Arduino UNO

Onderdelen en benodigdheden

Over dit project

Ik leer Arduino en wilde de klassieke Snake-game van mijn oude Nokia nabouwen. Gebruikte een 16x16 LED-matrix, joystick en Arduino UNO. De logica is wat lastig omdat elke LED achtereenvolgens aangesloten is.

Je stuurt de slang, eet voedsel, groeit en sterft. Code is uitbreidbaar.

Veel plezier! Abonneer op mijn YouTube en Instagram (Nederlands ondertitels komen later).

Code

De complete C/C++-code voor de Arduino UNO:

#include 
// Matrix instellingen
#define NUM_LEDS 256
#define DATA_PIN 3
#define BRIGHTNESS 8
// Joystick instellingen
#define pinX A2
#define pinY A1
#define swPin 2

int snake[256];
int snakeSize = 2;
int snakeSpeed = 500;
int row, col;
int lastDirection = 135;
int i, newDirection, OlddX = 1, OlddY, f;
int red, green, blue, fred, fgreen, fblue;
CRGB leds[NUM_LEDS];

void setup() {
  red = random(0, 255); green = random(0, 255); blue = random(0, 255);
  fred = random(127, 255); fgreen = random(127, 255); fblue = random(127, 255);
  Serial.begin(9600);
  pinMode(pinX, INPUT); pinMode(pinY, INPUT); pinMode(swPin, INPUT);
  digitalWrite(swPin, HIGH);
  FastLED.addLeds(leds, NUM_LEDS);
  FastLED.setBrightness(BRIGHTNESS);
  for (i = 0; i <= 255; i++) snake[i] = 0;
  for (i = 0; i <= snakeSize; i++) snake[i] = lastDirection + i;
  f = random(0, 255);
  FastLED.show();
}

int Snakedirection(int last, int dX, int dY) {
  dX = map(dX, 0, 1000, -1, 1);
  dY = map(dY, 0, 1000, -1, 1);
  if (dX == 0 && dY == 0 && OlddX != dX) dX = OlddX;
  if (dY == 0 && dX == 0 && OlddY != dY) dY = OlddY;
  int newDirection = last;
  if (dX != 0) {
    if (row & 1) {
      if (col == 0 && dX == 1) newDirection = last - 15;
      else if (col == 15 && dX == -1) newDirection = last + 15;
      else newDirection = last + dX;
    } else {
      if (col == 0 && dX == 1) newDirection = last + 15;
      else if (col == 15 && dX == -1) newDirection = last - 15;
      else newDirection = last - dX;
    }
  }
  if (dY < 0) {
    if (row == 15 && dY == -1) newDirection = col;
    else if (row & 1) newDirection = last + (col * 2) + 1;
    else newDirection = last + (16 - col - 1) + (16 - col);
  }
  if (dY > 0) {
    if (row == 0 && dY == 1) newDirection = 255 - col;
    else if (row & 1) newDirection = last - (last - 16 * row) - (16 - col);
    else newDirection = last - (col * 2) - 1;
  }
  OlddX = dX; OlddY = dY;
  return newDirection;
}

int snakeMove(int snakeDirection) {
  for (i = 0; i <= 255; i++) if (snake[i] == snakeDirection) death();
  FastLED.clear();
  for (i = snakeSize; i >= 1; i--) snake[i] = snake[i - 1];
  snake[0] = snakeDirection;
  for (i = 0; i <= 255; i++) if (snake[i]) leds[snake[i]].setRGB(red, green, blue);
  FastLED.show();
  row = (int)(snakeDirection / 16);
  if (row & 1) col = (row + 1) * 16 - snakeDirection - 1;
  else col = snakeDirection - row * 16;
  return snakeDirection;
}

void food(int eaten) {
  if (eaten == f) {
    snakeSize++;
    f = random(0, 255);
    red = fred; green = fgreen; blue = fblue;
    fred = random(0, 255); fgreen = random(0, 255); fblue = random(0, 255);
    snakeSpeed = snakeSpeed / 1.1;
  } else {
    leds[f].setRGB(fred, fgreen, fblue);
    FastLED.show();
  }
}

void death() {
  snakeSize = 2; snakeSpeed = 500; red = 255; green = 0; blue = 0;
}

void color(boolean sw) {
  if (!sw) { red = random(0, 255); green = random(0, 255); blue = random(0, 255); }
}

void loop() {
  color(digitalRead(swPin));
  newDirection = Snakedirection(lastDirection, analogRead(pinX), analogRead(pinY));
  lastDirection = snakeMove(newDirection);
  food(newDirection);
  delay(snakeSpeed);
}

Schema's