TinyDrawer/editor.html at main · Saranomy/TinyDrawer · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>TinyDrawer</title>
  <style>
    body {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      height: 100vh;
      margin: 0;
      background-color: #f0f0f0;
      font-family: Arial, sans-serif;
    }
    #grid {
      display: grid;
      grid-template-columns: repeat(64, 10px);
      grid-template-rows: repeat(32, 10px);
      gap: 1px;
      background-color: #000;
      border: 1px solid #000;
    }
    .cell {
      width: 10px;
      height: 10px;
      background-color: #000;
    }
    #palette {
      display: flex;
      justify-content: center;
      margin-top: 20px;
    }
    .color {
      width: 30px;
      height: 30px;
      margin: 0 5px;
      cursor: pointer;
      border: 2px solid #000;
    }
    .color.selected {
      border: 2px solid #fff;
      box-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
    }
    #raw {
      margin-top: 20px;
    }
    input {
      width: 640px;
    }
  </style>
</head>
<body>
<h1>TinyDrawer Sprite Buffer Editor</h1>
<div id="grid"></div>
<div id="palette"></div>
<div id="raw">
  <span>Hex String</span>
  <input type="text" id="hexString" />
</div>
<script>
  const grid = document.getElementById('grid')
  const palette = document.getElementById('palette')
  const colors = [
    '#000000', '#242449', '#6d2449', '#009249',
    '#b64924', '#6d6d49', '#b6b6b6', '#ffffff',
    '#ff0048', '#ff9200', '#ffdb24', '#00ff24',
    '#24b6ff', '#926d92', '#ff4992', '#ffdbb6'
  ]
  let selectedColorIndex = 4
  let isDrawing = false
  let hexData = ''
  let isProgrammaticChange = false

  const hexString = document.getElementById('hexString')

  function updateGrid(content) {
    const cells = document.querySelectorAll('.cell')
    for (let i = 0; i < content.length; i++) {
      const colorIndex = parseInt(content[i], 16)
      cells[i].style.backgroundColor = colors[colorIndex]
      cells[i].dataset.colorIndex = colorIndex.toString()
    }
  }

  // Detect change from user
  hexString.addEventListener('input', (event) => {
    if (!isProgrammaticChange || document.activeElement === hexString) {
      let content = hexString.value.replaceAll("\n", "").replaceAll(" ", "")
      if (content.length >= 32 * 64) {
        updateGrid(content)
        hexString.value = content
      }
    }
    // Reset the flag after detecting user change
    isProgrammaticChange = false
  });

  for (let i = 0; i < 16; i++) {
    const c = document.createElement('div')
    c.className = 'color'
    c.style.backgroundColor = colors[i]
    c.setAttribute('data-value', i.toString())
    palette.appendChild(c)
  }

  // Create grid
  for (let y = 0; y < 32; y++) {
    let index = Math.floor(y / 8) % 2
    for (let x = 0; x < 64; x++) {
      const cell = document.createElement('div')
      cell.className = 'cell'
      if(x > 0 && x % 8 == 0) index = (index + 1) % 2
      cell.dataset.colorIndex = index.toString(16)
      grid.appendChild(cell)
      hexData += cell.dataset.colorIndex
    }
  }
  isProgrammaticChange = true
  hexString.value = hexData
  updateGrid(hexData)

  // Color selection
  palette.addEventListener('click', (e) => {
    if (e.target.classList.contains('color')) {
      document.querySelector('.color.selected')?.classList.remove('selected')
      e.target.classList.add('selected')
      selectedColorIndex = parseInt(e.target.dataset.value)
    }
  })

  // Drawing functionality
  grid.addEventListener('mousedown', startDrawing)
  grid.addEventListener('mousemove', draw)
  grid.addEventListener('mouseup', stopDrawing)
  grid.addEventListener('mouseleave', stopDrawing)

  function startDrawing(e) {
    isDrawing = true
    draw(e)
  }

  function draw(e) {
    if (!isDrawing) return
    if (e.target.classList.contains('cell')) {
      e.target.style.backgroundColor = colors[selectedColorIndex]
      e.target.dataset.colorIndex = selectedColorIndex
    }
    hexData = ''
    document.querySelectorAll('.cell').forEach(cell => {
      hexData += parseInt(cell.dataset.colorIndex).toString(16)
    })
    isProgrammaticChange = true;
    hexString.value = hexData
  }

  function stopDrawing() {
    isDrawing = false
  }
</script>
</body>
</html>