From 67f210e4996470f92b3876c9c14c26903fcd41fb Mon Sep 17 00:00:00 2001
From: Victor De la Rocha <vyk2rr@gmail.com>
Date: Tue, 27 May 2025 15:54:51 -0600
Subject: [PATCH] Adds an staff (in progress)

---
 index.html | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 script.js  | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++
 styles.css | 46 +++++++++++++++++++++++++++++++++++++++-
 3 files changed, 164 insertions(+), 1 deletion(-)

diff --git a/index.html b/index.html
index 793f9ce..4ed6c00 100644
--- a/index.html
+++ b/index.html
@@ -85,6 +85,16 @@ <h2>
   </div>
 </div>
 
+<div class="staff-large">
+  <!-- líneas del pentagrama -->
+  <div class="line"></div>
+  <div class="line"></div>
+  <div class="line"></div>
+  <div class="line"></div>
+  <div class="line"></div>
+</div>
+
+
   <script src="./script.js"></script>
   <script>
     document.addEventListener('DOMContentLoaded', () => {
@@ -113,6 +123,57 @@ <h2>
     });
   </script>
 
+  <script>
+  document.addEventListener('DOMContentLoaded', () => {
+  const staff = document.querySelector('.staff-large');
+
+  const notePositions = {
+    'E4': 208, // línea 5 (inferior)
+    'F4': 187, // espacio
+    'G4': 166, // línea 4
+    'A4': 145, // espacio
+    'B4': 124, // línea 3
+    'C5': 103, // espacio
+    'D5': 82,  // línea 2
+    'E5': 61,  // espacio
+    'F5': 40   // línea 1 (superior)
+    // agrega más si quieres
+  };
+
+  // Escuchar clics en teclas
+document.querySelectorAll('.white-key, .black-key').forEach(key => {
+  key.addEventListener('click', () => {
+    const note = key.getAttribute('data-note');
+    const y = notePositions[note];
+    const staff = document.querySelector('.staff-large');
+    staff.querySelectorAll('.notehead').forEach(n => n.remove());
+    if (y !== undefined) {
+      const noteDiv = document.createElement('div');
+      noteDiv.classList.add('notehead');
+      noteDiv.style.top = `${y}px`;
+      noteDiv.style.left = '60px';
+      noteDiv.style.position = 'absolute';
+      noteDiv.style.width = '24px';
+      noteDiv.style.height = '16px';
+      noteDiv.style.background = 'white';
+      noteDiv.style.border = '2px solid #222';
+      noteDiv.style.borderRadius = '50%';
+      noteDiv.style.transform = 'rotate(-20deg)';
+      noteDiv.style.zIndex = 10;
+      if (note.includes('#')) {
+        const sharp = document.createElement('span');
+        sharp.className = 'sharp';
+        sharp.textContent = '♯';
+        noteDiv.appendChild(sharp);
+      }
+      staff.appendChild(noteDiv);
+    }
+  });
+});
+
+  });
+</script>
+
   
 </body>
 
diff --git a/script.js b/script.js
index 7c1ef21..ebf3e15 100644
--- a/script.js
+++ b/script.js
@@ -155,6 +155,7 @@ function playNote(frequency, message) {
 
 function playChord(notes, message) {
   const now = audioCtx.currentTime;
+  showNotesOnStaff(notes);
   notes.forEach(note => {
     const freq = typeof note === 'string' ? noteToFrequency(note) : note;
     const oscillator = audioCtx.createOscillator();
@@ -181,6 +182,7 @@ function playChord(notes, message) {
     oscillator.start(now);
     oscillator.stop(now + duration);
   });
+  // setTimeout(clearStaff, 1000);
   document.getElementById('poetryBox').textContent = message || '—';
 }
 
@@ -415,4 +417,60 @@ function highlightPianoKey(note, duration = 1000) {
   setTimeout(() => {
     document.querySelectorAll('.white-key, .black-key').forEach(key => key.classList.remove('active-key'));
   }, duration);
+}
+
+function showNotesOnStaff(notes) {
+  const staff = document.querySelector('.staff-large');
+  staff.querySelectorAll('.notehead').forEach(n => n.remove());
+
+const noteSteps = {
+  'E4': 0,   // línea 5 (inferior)
+  'F4': 1,   // espacio
+  'G4': 2,   // línea 4
+  'A4': 3,   // espacio
+  'B4': 4,   // línea 3
+  'C5': 5,   // espacio
+  'D5': 6,   // línea 2
+  'E5': 7,   // espacio
+  'F5': 8    // línea 1 (superior)
+  // agrega más si quieres
+};
+  const baseLineTop = 208; // top de la línea 1 (superior)
+  const lineSpacing = 42; // px entre líneas
+
+  const baseLeft = 60;
+
+  notes.forEach(note => {
+    const step = noteSteps[note];
+    if (step !== undefined) {
+      const y = baseLineTop - (step * (lineSpacing / 2));
+      const noteDiv = document.createElement('div');
+      noteDiv.className = 'notehead';
+      noteDiv.style.position = 'absolute';
+      noteDiv.style.top = `${y}px`;
+      noteDiv.style.left = `${baseLeft}px`;
+      noteDiv.style.width = '24px';
+      noteDiv.style.height = '16px';
+      noteDiv.style.background = 'white';
+      noteDiv.style.border = '2px solid #222';
+      noteDiv.style.borderRadius = '50%';
+      noteDiv.style.transform = 'rotate(-20deg)';
+      noteDiv.style.zIndex = 10;
+
+      if (note.includes('#')) {
+        const sharp = document.createElement('span');
+        sharp.className = 'sharp';
+        sharp.textContent = '♯';
+        sharp.style.position = 'absolute';
+        sharp.style.left = '-14px';
+        sharp.style.top = '2px';
+        sharp.style.fontSize = '18px';
+        sharp.style.fontWeight = 'bold';
+        sharp.style.color = 'black';
+        sharp.style.fontFamily = 'serif';
+        noteDiv.appendChild(sharp);
+      }
+      staff.appendChild(noteDiv);
+    }
+  });
 }
\ No newline at end of file
diff --git a/styles.css b/styles.css
index 0601c55..3b8a8f0 100644
--- a/styles.css
+++ b/styles.css
@@ -98,4 +98,48 @@ hr {
   .active-key {
     background: #ffe082 !important;
     box-shadow: 0 0 10px #ffd54f;
-  }
\ No newline at end of file
+  }
+
+
+
+.staff-large {
+  position: relative;
+  height: 300px; 
+  margin: 2em auto;
+  width: 320px;
+  background: transparent;
+}
+
+.staff-large .line {
+  position: absolute;
+  left: 0;
+  width: 100%;
+  height: 2px;
+  background: #fff;
+}
+.staff-large .line:nth-child(1) { top: 40px; }
+.staff-large .line:nth-child(2) { top: 82px; }
+.staff-large .line:nth-child(3) { top: 124px; }
+.staff-large .line:nth-child(4) { top: 166px; }
+.staff-large .line:nth-child(5) { top: 208px; }
+
+.sharp {
+  position: absolute;
+  left: -14px;
+  top: 2px; 
+  font-size: 18px;
+  font-weight: bold;
+  color: red;
+  font-family: serif;
+}
+
+.notehead {
+  position: absolute;
+  width: 24px;
+  height: 16px;
+  background: white;
+  border: 2px solid #222;
+  border-radius: 50%;
+  transform: rotate(-20deg);
+  z-index: 10;
+}
\ No newline at end of file