I cannot for the life of me get this snake game to run right, can anyone help?

S_Knighter

Problem solved, please delete thread.

Eeyorelife

Edit post, higlight code, ctrl + o

S_Knighter

Sorry, new to this :|

S_Knighter

Figured it all out, feel free to delete this thread :)

GoToLoop

I cannot for the life of me get this snake game to run right, can anyone help? Solved I have two issues:

1) I've tried to create a new array to increase the size of the snake by 1 whenever the snake collides with the image of fruit, but it only seems to be adding 1-2 pieces before it stops working.

2) This seems a common problem for people making a snake game, where the snakes body doesn't follow the head. I thought with my most recent change I had fixed it, however it created a new problem where for some reason a second snake sometimes appears on the screen... I have no idea why.

Can anyone help me? This is my code if that helps, but I'm new to processing so it's probably got more wrong with it than is apparent to me....

int score;
int dir;
float [][] bodyParts = new float[2][4];
float xLocation;
float yLocation;
float headX;
float headY;
float xVel;
float yVel;
float game;
float fruitX;
float fruitY;
PImage fruit;
boolean changing;

void setup() {
  frameRate(10); //change the rate of how many frames are drawn per second
  size(1200, 600); //set size of screen
  background(0, 200, 0); //set background color to green
  fruit = loadImage("Strawberry.jpg"); //load image of fruit
  fruit.resize(10, 10); //make fruit same size as snake
  yVel = -10;
  xVel = 0;
  headX = width/2;
  headY = 3*(height/4);
  score = 0;
  game = 1;
  fruitX = (int) random(width-10);
  fruitY = (int) random(height-10);
}

void draw() {
  background(0, 200, 0); //clear the background;
  makeFruit(); //draws function that places fruit on screen
  makeSnake(); //draws function that creates the snake
  checkGame(); //checks if the game is over or not
  textSize(20);
  text("Score = " + score, 5, 20);
}

void makeFruit() {
  for (int i=0; i<bodyParts.length; i++) {
    if (dist(headX, headY, fruitX, fruitY) >= 10) { //if fruit already on screen, don't draw another
      image(fruit, fruitX, fruitY);
    } else if (dist(headX, headY, fruitX+2, fruitY+1) < 10) {
      score++;
      float [][] temp = new float[bodyParts.length+1][4];
      for (int j=0; j<temp.length-1; j++) {
        for (int k=0; k<temp[j].length; k++) {
          temp[j][k] = bodyParts[j][k];
        }
      }
      temp[temp.length-1][0] = bodyParts[bodyParts.length-1][0];
      temp[temp.length-1][1] = bodyParts[bodyParts.length-1][1];
      temp[temp.length-1][2] = bodyParts[bodyParts.length-1][2];
      bodyParts = temp;

      fruitX = (int) random(width-10);
      fruitY = (int) random(height-10);
    }
  }
}
void makeSnake() {
  fill(255);
  ellipse(headX, headY, 10, 10); //draw snake head
  headX = headX + xVel;
  headY = headY + yVel;

  for (int i=1; i<bodyParts.length; i++) { 
    bodyParts[1][0] = xLocation;
    bodyParts[i][1] = yLocation;
    bodyParts[i][2] = dir;
    bodyParts[i][3] = 0;
    if (bodyParts[i][2] == bodyParts[i-1][2]) {
      changing = false;
      ellipse(bodyParts[i][0], bodyParts[i][1], 10, 10); //draw the i'th body part
    } else {
      changing = true;
      followHead();
    }
    if (changing==true) {
      bodyParts[i][2] = bodyParts[i-1][2];
    }
    ellipse(headX-xVel, headY-yVel, 10, 10);
    xLocation = headX-xVel;
    yLocation = headY-yVel;
  }
}

void followHead() {
  for (int i=1; i<bodyParts.length; i++) { 
    if (dir==1||dir==2||dir==3||dir==4) {
      ellipse(bodyParts[i][0]-xVel, bodyParts[i][1]-yVel, 10, 10);
    }
  }
}

void checkGame() {
  if (game == 0 || headX <3 || headY <3 || headX > width - 3 || headY > height - 3) {
    game = 0; //game over
    xVel=0;
    yVel=0;
    textSize(30);
    text("Game Over", width/2 - 80, height/2);
  }
  for (int i=0; i<bodyParts.length; i++) {
    if (dist(headX, headY, bodyParts[i][0], bodyParts[i][1]) < 10) {
      game = 0;
    }

    // else game = 1; //allows game to continue if player doesn't meet conditions, only used for testing purposes, don't put in final product
  }
}

void keyPressed() {
  if (key==CODED) {
    if (keyCode == LEFT && xVel != 10) {
      dir=1;
      changing = true;
      xVel = -10;
      yVel = 0;
    }
    if (keyCode == RIGHT && xVel != -10) {
      dir=2;
      changing = true;
      xVel = 10;
      yVel = 0;
    }
    if (keyCode == UP && yVel != 10) {
      dir=3;
      changing = true;
      xVel = 0;
      yVel = -10;
    }
    if (keyCode == DOWN && yVel != -10) {
      dir=4;
      changing = true;
      xVel = 0;
      yVel = 10;
    }
  }
}