From c6ad20992dddb05b5a76d335bd7008d2d96f72a6 Mon Sep 17 00:00:00 2001
From: samhed <samuel@cendio.se>
Date: Thu, 11 Jul 2013 12:37:01 +0200
Subject: [PATCH] Improved comments
---
include/input.js | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/include/input.js b/include/input.js
index dd16fa5..efd865a 100644
--- a/include/input.js
+++ b/include/input.js
@@ -548,17 +548,16 @@ function onMouseButton(e, down) {
} else {
clearTimeout(doubleClickTimer);
- // When the distance between the two touches is less than
- // 20 physical pixels force the position of the latter touch
- // to the position of the first.
+ // When the distance between the two touches is small enough
+ // force the position of the latter touch to the position of
+ // the first.
var xs = lastTouchPos.x - pos.x;
var ys = lastTouchPos.y - pos.y;
var d = Math.sqrt((xs * xs) + (ys * ys));
- // The devicePixelRatio is the ratio between logical pixels and
- // physical pixels. A devicePixelRatio of 2 means that the
- // physical linear resolution is double the logical resolution.
+ // The goal is to trigger on a certain physical width, the
+ // devicePixelRatio brings us a bit closer but is not optimal.
if (d < 20 * window.devicePixelRatio) {
pos = lastTouchPos;
}
--
2.18.1