Ports the basic script to split modules

1 files changed, 28 insertions, 0 deletions

diff --git a/lib/screens/sprinkles.js b/lib/screens/sprinkles.js
new file mode 100644
index 0000000..446f46e
--- /dev/null
+++ b/lib/screens/sprinkles.js
@@ -0,0 +1,28 @@
+'use strict';
+
+// Places random sprinkles in the screen each frame. Same color per
+// frame.
+const Sprinkles = function (modulation, width, height, renderer) {
+  let response = '';
+
+  let maxSprinkleCount = (width * height) / 2;
+  let minSprinkleCount = (width * height) / 8;
+  let sprinkleCount = Math.round(Math.random() * (maxSprinkleCount - minSprinkleCount)) + minSprinkleCount;
+
+  let red = Math.floor(Math.random() * 255);
+  let blue = Math.floor(Math.random() * 255);
+  let green = Math.floor(Math.random() * 255);
+
+  for (let i = 0; i < sprinkleCount; i++) {
+    let x = Math.round(Math.random() * (width - 1)) + 1;
+    let y = Math.round(Math.random() * (height - 1)) + 1;
+
+    let position = `\x1B[${y};${x}H`; // Move cursor to y,x (CSI y;x H)
+
+    response += `${position}${renderer(red, blue, green)} `;
+  }
+
+  return response;
+};
+
+module.exports = Sprinkles;