Use variable for interval

[rbdr/tomato-sauce] / lib / screens / circle.js

diff --git a/lib/screens/circle.js b/lib/screens/circle.js
index d8a4d100730ad4b4c3b05732e7b2ea9abaa7c670..720e250ddd0e414ce4a9234e0681ca70a7dd0098 100644 (file)
--- a/lib/screens/circle.js
+++ b/lib/screens/circle.js
@@ -1,26 +1,32 @@
 'use strict';
 
-// Draws concentric circles. Each ring has its own color.
-const Circle = function (modulation, width, height, renderer) {
-  let response = [];
+/**
+ * Draws concentric circles. Each ring has its own color.
+ *
+ * @function CircleScreen
+ * @implements IScreen
+ */
+module.exports = function (modulation, width, height, renderer) {
 
-  let circles = width > height ? height : width;
+  const response = [];
 
-  for (let i = 0; i < circles; i++) {
-    let centerX = Math.round(width / 2) + 1;
-    let centerY = Math.round(height / 2) + 1;
+  const circles = width > height ? height : width;
 
-    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 < circles; ++i) {
+    const centerX = Math.round(width / 2) + 1;
+    const centerY = Math.round(height / 2) + 1;
 
-    for (let j = 0; j < 180; j++) {
-      let angle =  2 * j * (Math.PI / 180);
-      let x = Math.round(centerX + Math.sin(angle) * i);
-      let y = Math.round(centerY + Math.cos(angle) * i);
+    const red = Math.floor(Math.random() * 255);
+    const blue = Math.floor(Math.random() * 255);
+    const green = Math.floor(Math.random() * 255);
+
+    for (let j = 0; j < 180; ++j) {
+      const angle =  2 * j * (Math.PI / 180);
+      const x = Math.round(centerX + Math.sin(angle) * i);
+      const y = Math.round(centerY + Math.cos(angle) * i);
 
       if (x <= width && x > 0 && y <= height && y > 0) {
-        let position = `\x1B[${y};${x}H`; // Move cursor to y,x (CSI y;x H)
+        const position = `\x1B[${y};${x}H`; // Move cursor to y,x (CSI y;x H)
         response += `${position}${renderer(red, blue, green)} `;
       }
     }
@@ -28,5 +34,3 @@ const Circle = function (modulation, width, height, renderer) {
 
   return response;
 };
-
-module.exports = Circle;