​

let grid = 

`WWWWWWWWW

W$$.....+##########

W.......W         #

W.......W     WWWW+WWW

W.......W     W..S...W

W.......+#####+....$.W

W.......W     W...$S$W

WWWWWWWWW     WWWWWWWW`.split('\n').map( (e)=>e.split('') );

​

let player = [3,4]; // row,col

let score = 0, hp = 100;

let countDown = -1,countDownText='';

​

function setup() {

  createCanvas(400, 400);

  //console.log(grid);

}

​

function draw() {

  background(0);

  fill(255);

  text(`score: ${score}`,320,20);

  text(`hp: ${hp}`,320,35);

  text('Mini-Rogue - use arrows to move...',20,380);

  for (let r=0;r<grid.length;r++){

    for (let c=0;c<grid[r].length;c++){

      text(grid[r][c],c*15 +20,r*15 + 120);

    }    

  }

  text('@',player[1]*15+20,player[0]*15+120);

  if (countDown>-1){

    countDown--;

    text(countDownText,150,300);

  }

}

​

function keyPressed() {

  let newPos = [...player];

  if (keyCode === LEFT_ARROW) {

    newPos[1]-=1;

  }

  if (keyCode === RIGHT_ARROW) {

    newPos[1]+=1;

  }

  if (keyCode === UP_ARROW) {

    newPos[0]-=1;

  }

  if (keyCode === DOWN_ARROW) {

    newPos[0]+=1;

  }

  let [r,c] = newPos;

  if (grid[r][c]=='$'){

    grid[r][c] = '.';

    score += 100;

    countDownText = 'Found gold';

    countDown += 100;

  }

  if (grid[r][c]=='S'){

    // encounter with a snake

    hp -= int(random(1,6+1));

    countDownText = 'Ouch!';

    countDown += 100;

    if (random(1,100)>80){

      // the snake was killed

      grid[r][c] = '.';

      score += 500;

      countDownText = 'Killed a snake';

      countDown += 100;

    }

  }

  if ( '.+#'.includes( grid[r][c]) ){

    // move on walkable tiles

    player = newPos;

  } 

  if ( (random(1,100)>99) && 

       (grid[5][16]!='S') ){

    // spawn a snake

    grid[5][16]='S';

  }

  if ( (random(1,100)>95) && 

       (grid[1][1]!='$') ){

    // spawn gold

    grid[1][1]='$';

  }

​

}