From 02f63e8356ee5e3500507a588ef0afc41d75630b Mon Sep 17 00:00:00 2001
From: Determinant <tederminant@gmail.com>
Date: Sat, 31 Aug 2024 23:42:13 -0700
Subject: add slip indicator to the PFD

---
 app.mjs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'app.mjs')

diff --git a/app.mjs b/app.mjs
index b2cac4f..666b8c6 100755
--- a/app.mjs
+++ b/app.mjs
@@ -413,7 +413,8 @@ const renderAttitudeIndicator = (c, display, values) => {
 
     const pitch = values[0] || 0;
     const roll = values[1] || 0;
-    let src = isObject(display.navs) ? display.navs[values[2]] : null;
+    const slip = values[2] || 0;
+    let src = isObject(display.navs) ? display.navs[values[3]] : null;
     if (!isObject(src)) {
         src = null;
     }
@@ -512,6 +513,10 @@ const renderAttitudeIndicator = (c, display, values) => {
     c.moveTo(-3, -(bankR - 9));
     c.lineTo(0, -(bankR - 1));
     c.lineTo(3, -(bankR - 9));
+
+    const slipD = -slip * 2;
+    c.moveTo(-5 + slipD, -(bankR - 9));
+    c.lineTo(5 + slipD, -(bankR - 9));
     c.stroke();
 
     // draw vertical deflection dots
-- 
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