Finished wesbos#8

Clint1080 · Clint1080 · commit b24be9fb3f70 · 2021-09-06T15:41:14.000-06:00
diff --git a/08 - Fun with HTML5 Canvas/index-START.html b/08 - Fun with HTML5 Canvas/index-START.html
@@ -7,6 +7,58 @@
 <body>
 <canvas id="draw" width="800" height="800"></canvas>
 <script>
+  const canvas = document.querySelector('#draw')
+  const ctx = canvas.getContext('2d')
+  canvas.width = window.innerWidth
+  canvas.height = window.innerHeight
+  ctx.strokeStyle = '#BADA55'
+  ctx.lineJoin = 'round'
+  ctx.lineCap = 'round'
+  ctx.lineWidth = 30
+
+let isDrawing = false
+let lastX = 0
+let lastY = 0
+let hue = 0
+let direction = true
+
+function draw(e) {
+  if(!isDrawing) return; // Stop the fn from running when they are not moused down
+  console.log(e)
+  ctx.strokeStyle = `hsl(${hue}, 100%, 50%)`
+  ctx.beginPath()
+  // start from 
+  ctx.moveTo(lastX, lastY)
+  // go to
+  ctx.lineTo(e.offsetX, e.offsetY)
+  ctx.stroke()
+  lastX = e.offsetX
+  lastY = e.offsetY
+  hue++
+  if (hue >= 360) {
+    hue = 0
+  }
+  if (ctx.lineWidth >= 100 || ctx.lineWidth <= 1) {
+    direction = !direction
+  }
+  if (direction) {
+    ctx.lineWidth++
+  } else {
+    ctx.lineWidth--
+  }
+}
+
+canvas.addEventListener('mousedown', (e) => {
+  isDrawing = true
+  lastX = e.offsetX
+  lastY = e.offsetY
+})
+
+canvas.addEventListener('mousemove', draw)
+canvas.addEventListener('mouseup', () => isDrawing = false)
+canvas.addEventListener('mouseout', () => isDrawing = false)
+
+
 </script>
 
 <style>
