X-Git-Url: https://git.r.bdr.sh/rbdr/tomato-sauce/blobdiff_plain/ae6dbe43bf54581dd7012f95581d4a1b6ee245f0..c7b4bd19a006d61c3b4979e884370d123cec7524:/lib/screens/gradients.js

diff --git a/lib/screens/gradients.js b/lib/screens/gradients.js
new file mode 100644
index 0000000..5e63d5b
--- /dev/null
+++ b/lib/screens/gradients.js
@@ -0,0 +1,25 @@
+'use strict';
+
+// Draws moving gradient boxes.
+const Gradients = function (modulation, width, height, renderer) {
+  let response = '';
+
+  for (let i = 0; i < height; i++) {
+    for (let j = 0; j < width; j++) {
+      let red = ((modulation + i) * 255 / height) % 255;
+      let blue = ((modulation + j) * 255 / width) % 255;
+      let green = ((modulation + i * j) * 255 / (width * height)) % 255;
+
+      response = response + renderer(red, blue, green);
+      response = response + ' ';
+    }
+
+    if (i < height - 1) {
+      response = response + '\n';
+    }
+  }
+
+  return response;
+};
+
+module.exports = Gradients;