Wall-e-Arduino/index.h at master · Johan-Palacios/Wall-e-Arduino · GitHub

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const char *HTML_CONTENT = R"=====(
<!DOCTYPE html>
<html>
<head>
<title>Arduino Controls Servo Motor via Web</title>
<meta name="viewport" content="width=device-width, initial-scale=0.7">
<style>
body { text-align: center; }
canvas { background-color: #ffffff; }
</style>
<script>
let canvas_width = 401, canvas_height = 466;
let pivot_x = 200, pivot_y = 200;
let bracket_radius = 160, bracket_angle = 0;
let bracket_img = new Image();
let click_state = 0;
let last_angle = 0;
let mouse_xyra = {x:0, y:0, r:0.0, a:0.0};
let ws;

bracket_img.src = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZEAAAGRCAMAAACT/35lAAAASFBMVEVHcEwTFBIaGhknJiUwLyweIBxHR"
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function init()
{
  var servo = document.getElementById("servo");

  servo.width = canvas_width;
  servo.height = canvas_height;
  // servo.style.backgroundImage = "url('https://esp32io.com/images/tutorial/servo-body.png')";
  servo.style.backgroundPosition = "center";
  servo.style.backgroundSize = "contain";

  servo.addEventListener("touchstart", mouse_down);
  servo.addEventListener("touchend", mouse_up);
  servo.addEventListener("touchmove", mouse_move);
  servo.addEventListener("mousedown", mouse_down);
  servo.addEventListener("mouseup", mouse_up);
  servo.addEventListener("mousemove", mouse_move);

  var ctx = servo.getContext("2d");

  ctx.translate(pivot_x, pivot_y);

  rotate_bracket(0);

  ws = new WebSocket("ws://" + window.location.host + ":81");
  document.getElementById("ws_state").innerHTML = "CONECTADO";

  ws.onopen  = function(){ document.getElementById("ws_state").innerHTML = "CONECTADO" };
  ws.onclose = function(){ document.getElementById("ws_state").innerHTML = "DESCONECTADO"};
  ws.onerror = function(){ alert("websocket error " + this.url) };

    // Motor button event listeners
  document.getElementById("m1_forward").addEventListener("click", function() { sendMotorCommand("M1F"); });
  document.getElementById("m1_reverse").addEventListener("click", function() { sendMotorCommand("M1R"); });
  document.getElementById("m1_stop").addEventListener("click", function() { sendMotorCommand("M1S"); });
  document.getElementById("m2_forward").addEventListener("click", function() { sendMotorCommand("M2F"); });
  document.getElementById("m2_reverse").addEventListener("click", function() { sendMotorCommand("M2R"); });
  document.getElementById("m2_stop").addEventListener("click", function() { sendMotorCommand("M2S"); });
  // Audio Event Listeners
  document.getElementById("audio-walle").addEventListener("click", function() { sendAudioCommand("AUDIO:WALLE"); });
  document.getElementById("audio-evaconfundido").addEventListener("click", function() { sendAudioCommand("AUDIO:EVACONFUNDIDO"); });
  document.getElementById("audio-ittakes").addEventListener("click", function() { sendAudioCommand("AUDIO:ITTAKES"); });
  document.getElementById("audio-putonyoursundayclothes").addEventListener("click", function() { sendAudioCommand("AUDIO:PUTONRYOURSUNDAY"); });
  document.getElementById("audio-lakers").addEventListener("click", function() { sendAudioCommand("AUDIO:LAKERS"); });
  document.getElementById("audio-lentes").addEventListener("click", function() { sendAudioCommand("AUDIO:LENTES"); });
  document.getElementById("audio-parar").addEventListener("click", function() { sendAudioCommand("AUDIO:PARAR"); });
  document.getElementById("audio-tada").addEventListener("click", function() { sendAudioCommand("AUDIO:TADA"); });


  // LED
  document.getElementById("led-cabeza-on").addEventListener("click", function() { sendAudioCommand("LED:CABEZA-ON"); });
  document.getElementById("led-cabeza-off").addEventListener("click", function() { sendAudioCommand("LED:CABEZA-OFF"); });
  document.getElementById("led-red-on").addEventListener("click", function() { sendAudioCommand("LED:PECHO-ON"); });
  document.getElementById("led-red-off").addEventListener("click", function() { sendAudioCommand("LED:PECHO-OFF"); });
  document.getElementById("led-charge-on").addEventListener("click", function() { sendAudioCommand("LED:CHARGE-ON"); });
  document.getElementById("led-charge-off").addEventListener("click", function() { sendAudioCommand("LED:CHARGE-OFF"); });


  ws.onmessage = ws_onmessage;
}
function sendMotorCommand(command) {
  if (ws.readyState === WebSocket.OPEN) {
    ws.send(command + "\r\n");
    console.log("Sent: " + command);
  } else {
    document.getElementById("ws_error").innerHTML = "Cannot send command: WebSocket not connected.";
    document.getElementById("ws_error").style.display = "block";
  }
}
function sendAudioCommand(command) {
  if (ws.readyState === WebSocket.OPEN) {
    ws.send(command + "\r\n");
    console.log("Sent: " + command);
  } else {
    document.getElementById("ws_error").innerHTML = "Cannot send command: WebSocket not connected.";
    document.getElementById("ws_error").style.display = "block";
  }
}
function ws_onmessage(e_msg)
{
  e_msg = e_msg || window.event; // MessageEvent

  alert("msg : " + e_msg.data);
}
function rotate_bracket(angle)
{
  var servo = document.getElementById("servo");
  var ctx = servo.getContext("2d");

  ctx.clearRect(-pivot_x, -pivot_y, canvas_width, canvas_height);
  ctx.rotate(angle / 180 * Math.PI);

  ctx.drawImage(bracket_img, -pivot_x, -pivot_y);

  ctx.rotate(-angle / 180 * Math.PI);
}
function check_range_xyra(event, mouse_xyra)
{
  var x, y, r, a, rc_x, rc_y, radian;
  var min_r, max_r, width;

  if(event.touches)
  {
    var touches = event.touches;

    x = (touches[0].pageX - touches[0].target.offsetLeft) - pivot_x;
    y = pivot_y - (touches[0].pageY - touches[0].target.offsetTop);
    min_r = 60;
    max_r = pivot_x;
    width = 40;
  }
  else
  {
    x = event.offsetX - pivot_x;
    y = pivot_y - event.offsetY;
    min_r = 60;
    max_r = bracket_radius;
    width = 20;
  }

  /* cartesian to polar coordinate conversion */
  r = Math.sqrt(x * x + y * y);
  a = Math.atan2(y, x);

  mouse_xyra.x = x;
  mouse_xyra.y = y;
  mouse_xyra.r = r;
  mouse_xyra.a = a;

  radian = bracket_angle / 180 * Math.PI;

  /* rotate coordinate */
  rc_x = x * Math.cos(radian) - y * Math.sin(radian);
  rc_y = x * Math.sin(radian) + y * Math.cos(radian);

  if((r < min_r) || (r > max_r))
    return false;

  if((rc_y < -width) || (rc_y > width))
    return false;

  return true;
}
function mouse_down()
{
  if(event.touches && (event.touches.length > 1))
    click_state = event.touches.length;

  if(click_state > 1)
    return;

  if(check_range_xyra(event, mouse_xyra))
  {
    click_state = 1;
    last_angle = mouse_xyra.a / Math.PI * 180.0;
  }
}
function mouse_up()
{
  click_state = 0;
}
function mouse_move()
{
  var angle;

  if(event.touches && (event.touches.length > 1))
    click_state = event.touches.length;

  if(click_state > 1)
    return;

  if(!click_state)
    return;

  if(!check_range_xyra(event, mouse_xyra))
  {
    click_state = 0;
    return;
  }

  angle = mouse_xyra.a / Math.PI * 180.0;

  if((Math.abs(angle) > 90) && (angle * last_angle < 0))
  {
    if(last_angle > 0)
      last_angle = -180;
    else
      last_angle = 180;
  }

  bracket_angle += (last_angle - angle);
  last_angle = angle;

  if(bracket_angle > 90)
    bracket_angle = 90;

  if(bracket_angle < -90)
    bracket_angle = -90;

  rotate_bracket(bracket_angle);

  if(ws.readyState == 1)
    ws.send(Math.floor(90 - bracket_angle) + "\r\n");

  debug = document.getElementById("debug");
  debug.innerHTML = Math.floor(90 - bracket_angle);

  event.preventDefault();
}
window.onload = init;
</script>
</head>

<body>

<h2>
WALLE<br>
<canvas id="servo"></canvas>

<p>
WebSocket : <span id="ws_state" style="color:blue">null</span><br>
Angulo : <span id="debug" style="color:blue">90</span>
</p>
</h2>

<h3>Motor 1 Control</h3>
<button id="m1_forward" class="button forward">Arriba</button>
<button id="m1_reverse" class="button reverse">Abajo</button>
<button id="m1_stop" class="button stop">Parar</button>
<h3>Motor 2 Control</h3>
<button id="m2_forward" class="button forward">Arriba</button>
<button id="m2_reverse" class="button reverse">Abajo</button>
<button id="m2_stop" class="button stop">Parar</button>


<h3>LED</h3>
<button id="led-cabeza-on" class="button stop">Cabeza ON</button>
<button id="led-cabeza-off" class="button stop">Cabeza OFF</button>
<button id="led-red-on" class="button stop">Pecho ON</button>
<button id="led-red-off" class="button stop">Pecho OFF</button>
<button id="led-charge-on" class="button stop">Charge ON</button>
<button id="led-charge-off" class="button stop">Charge OFF</button>

<h3>Audio</h3>
<button id="audio-parar" class="button stop">PARAR MUSICA</button>
<button id="audio-walle" class="button stop">Decir "Wall-E"</button>
<button id="audio-evaconfundido" class="button stop">Decir "Eva Confundido"</button>
<button id="audio-tada" class="button stop">Decir "TADA"</button>
<button id="audio-lentes" class="button stop">Sonido Lentes"</button>
<button id="audio-ittakes" class="button stop">Decir "It Only Take a Moment"</button>
<button id="audio-putonyoursundayclothes" class="button stop">Decir "Put On Your Sunday Clothes"</button>
<button id="audio-lakers" class="button stop">Decir "A Correr los Lakers"</button>
</body>
</html>
)=====";