My attempt at a grappling hook

[Gunderak]

I have made a pretty poor grappling hook and done it a weird way but oh well lol it still works. I was wondering if anyone would happen to have any knowledge on how to make it so you could hit a player and press a to reel them towards you maybe lmao.
Also how would I detect if it hits lets say for instance a bush? then it could change the bush tiles to cut down bush tiles, I know how that is done, Via tiles and updateboard.
But the detection of specific tiles I'm unsure of.
Here's my script so far.

PHP Code:

//#CLIENTSIDE
function onCreated() {
  this.pullin = false;
  this.shooting = false;
  this.pullable = false;
}

function onWeaponFired() {
  hideimgs(200, 10000);
  this.dir = player.dir;
  this.sx = player.x + 1;
  this.sy = player.y + 1.5;
  this.shooting = true;
  onTimeout();
}

function onTimeout() {
  if (this.shooting == true) {
    showpoly(1, {
      player.x + 1, player.y + 1.5, this.sx, this.sy
    });
      findimg(1).layer = 0;
      findimg(1).red = 0;
      findimg(1).green = 1;
      findimg(1).blue = 0;
      this.sx2 = this.sx;
      this.sy2 = this.sy;
      if (this.dir == 0 && !onwall(this.sx, this.sy - 0.5)) {
        this.sy -= 0.5;
      }
      if (this.dir == 1 && !onwall(this.sx - 0.5, this.sy)) {
        this.sx -= 0.5;
      }
      if (this.dir == 2 && !onwall(this.sx, this.sy + 0.5)) {
        this.sy += 0.5;
      }
      if (this.dir == 3 && !onwall(this.sx + 0.5, this.sy)) {
        this.sx += 0.5;
      }
      freezeplayer(1);
      if(this.sx2 == this.sx && this.sy2 == this.sy){
      Hit();
      settimer(0);
      findimg(1).red = 1;
      findimg(1).green = 0;
      findimg(1).blue = 0;
      return;
      }
  }
  if (this.pullin == true) {
    freezeplayer(1);
    showpoly(1, {
      player.x + 1, player.y + 1.5, this.sx, this.sy
    });
      findimg(1).layer = 0;
      findimg(1).red = 1;
      findimg(1).green = 0;
      findimg(1).blue = 0;
    if (this.dir == 0 && player.y > this.sy) {
      player.y -= 0.5;
    }
    if (this.dir == 2 && player.y < this.sy) {
      player.y += 0.5;
    }
    if (this.dir == 1 && player.x > this.sx) {
      player.x -= 0.5;
    }
    if (this.dir == 3 && player.x < this.sx) {
      player.x += 0.5;
    }
    if (player.y == this.sy) {
      if (this.dir == 0 || this.dir == 2) {
        this.pullin = false;
        freezeplayer(0);
        hideimg(1);
      }
    }
    if (player.x == this.sx) {
      if (this.dir == 1 || this.dir == 3) {
        this.pullin = false;
        freezeplayer(0);
        hideimg(1);
      }
    }
  }
  settimer(0.05);
}

function Hit() {
  this.pullable = true;
  player.chat = "Press A to reel in!";
}

function onKeyPressed(code, key) {
  if (key == "a" && this.pullable == true) {
    this.pullable = false;
    this.shooting = false;
    this.pullin = true;
    onTimeout();
  }
}