​

let img;

let x = 170; // Pac Man's x-coordinate

let y = 30; // Pac Man's y-coordinate

let personalSpace = 21;

let ghostPersonalSpace = 20;

let diam = 24;

​

let ghostArray = new Array(4);

​

let xLoc = new Array(100); //                                                  // 3C

let yLoc = new Array(100); //                                                  // 3C

​

function preload() {

  img = loadImage("maze.png");

}

​

function setup() {

  createCanvas(500, 550);

​

  eatenFalse();

​

  foodLocations(); //                                                           // 2

​

  ghostArray[0] = new Ghost(xLoc[16], yLoc[16], 98, 3, 153);

  ghostArray[1] = new Ghost(xLoc[16], yLoc[16], 252, 244, 5);

  ghostArray[2] = new Ghost(xLoc[16], yLoc[16], 245, 34, 227);

  ghostArray[3] = new Ghost(xLoc[16], yLoc[16], 106, 163, 132);

}

​

// ------------------ //

//     DRAW LOOP      //

// ------------------ //

​

function draw() {

  background(255);

  image(img, 0, 0);

​

  updateEaten();

  drawFood();

  updateScore();

  drawScore();

​

  movePacMan();

  drawPacMan();

​

  for (let i = 0; i < ghostArray.length; i++) {

    ghostArray[i].displayGhost();

    ghostArray[i].moveGhost();

  }

}

​

// -------------------- //

//     DRAW PACMAN      //

// -------------------- //

​

function drawPacMan() {

  noStroke();

  fill(255, 255, 0);

  ellipse(x, y, diam, diam);

}

​

​

function foodLocations() {

  // Horizontal (x-ccordinates)

  for (let a = 0; a < 10; a++) {

    // Vertical (y-coordinates)

    for (let b = 0; b < 10; b++) {

      let k = a * 10 + b; // k == 0, then 1, then 2, all the way to 100.

      xLoc[k] = 33 + a * 48; // This is where the food is in the x-coordinates

      yLoc[k] = 33 + b * 48; // This is where the food is in the y-coordinates

      print(k + " is at (" + xLoc[k] + ", " + yLoc[k] +")");

    }

  }

}

​

// -------------- //

//     GHOST      //

// -------------- //

​

class Ghost {

  // --------- GHOST: Attributes ---------//

  constructor(tempX, tempY, tempR, tempG, tempB) {

    this.x = tempX;

    this.y = tempY;

    this.r = tempR;

    this.g = tempG;

    this.b = tempB;

    this.speed = 2;

​

    this.L = 0;

    this.R = 1;

    this.U = 2;

    this.D = 3;

    this.cameFrom = this.U;

    this.onIntersection = true;

  }

​

  //--------- GHOST: Display ---------//

  displayGhost() {

    rectMode(CENTER);

    fill(this.r, this.g, this.b);

    rect(this.x, this.y, 20, 20);

  }

​

  //-------- GHOST: Move ---------//

  moveGhost() {

    //check if i'm on an intersection

    for (let i = 0; i < 100; i++){

      if (this.x == xLoc[i] && this.y == yLoc[i]) {

        this.onIntersection = true;

      }

    }

    if (this.onIntersection == true) {

      //if yes, pick a new direction

      let canMoveR = false;

      let canMoveL = false;

      let canMoveU = false;

      let canMoveD = false;

​

      //MOVE RIGHT 

      let mR = get(this.x + ghostPersonalSpace, this.y);

      if (mR[0] > 200) {

        // wall! don't move

      } else {

       canMoveR = true;

      }

      //MOVE LEFT 

      let mL = get(this.x - ghostPersonalSpace, this.y);

      if (mL[0] > 200) {

        // wall! don't move

      } else {

       canMoveL = true;

      }

      //MOVE UP 

     let mU = get(this.x, this.y - ghostPersonalSpace);

        if (mU[0] > 200) {

        // wall! don't move

      } else {

       canMoveU = true;

      }    

      //MOVE DOWN

       let mD = get(this.x, this.y + ghostPersonalSpace);

      if (mD[0] > 200) {

        // wall! don't move

      } else {

       canMoveD = true;

      }

      this.dir = int(random(4));

      if (this.dir == 0){

        if (canMoveL){

          this.x += this.speed * -1;

          this.cameFrom = this.L;

        }

      }

       if (this.dir == 1){

        if (canMoveR){

          this.x += this.speed; 

          this.cameFrom = this.R;

        }

      }

       if (this.dir == 2){

        if (canMoveU){

          this.y += this.speed * -1;

          this.cameFrom = this.U;

        }

      }

       if (this.dir == 3){

        if (canMoveD){

          this.y += this.speed;

          this.cameFrom = this.D;

        }

      }

      this.onIntersection = false;

    }

    //if no, keep going

  }

}

​

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