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authorBen Beltran <ben@nsovocal.com>2016-05-09 00:31:25 -0500
committerBen Beltran <ben@nsovocal.com>2016-05-09 00:31:25 -0500
commita140f3add912ef4bd659c1c1e82184643be7d845 (patch)
tree131f33520cc40abc387474fa9c2ac4f536e6d7d1 /lib/screens/circle.js
parentae6dbe43bf54581dd7012f95581d4a1b6ee245f0 (diff)
parent09ab7e985d46cad6d3c89e37f983e286e9fda2f6 (diff)
Merge branch 'feature/the-actual-tomato-sauce' into develop
Diffstat (limited to 'lib/screens/circle.js')
-rw-r--r--lib/screens/circle.js32
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diff --git a/lib/screens/circle.js b/lib/screens/circle.js
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+++ b/lib/screens/circle.js
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+'use strict';
+
+// Draws concentric circles. Each ring has its own color.
+const Circle = function (modulation, width, height, renderer) {
+ let response = [];
+
+ let circles = width > height ? height : width;
+
+ for (let i = 0; i < circles; i++) {
+ let centerX = Math.round(width / 2) + 1;
+ let centerY = Math.round(height / 2) + 1;
+
+ let red = Math.floor(Math.random() * 255);
+ let blue = Math.floor(Math.random() * 255);
+ let green = Math.floor(Math.random() * 255);
+
+ 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);
+
+ if (x <= width && x > 0 && y <= height && y > 0) {
+ 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 = Circle;