From 6cd5dea1698c0238a6d08eb8fc66696007483640 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Piotr=20=C5=9Aliwka?= <contact@psliwka.info>
Date: Sun, 17 Jan 2021 16:33:46 +0100
Subject: [PATCH] Fix subline position term in velocity formula

The subline potion was previously added with incorrect sign (should be
negated instead). This might be partially responsible for animation
speed quirks described in
https://github.com/psliwka/vim-smoothie/issues/22#issuecomment-751296807
---
 autoload/smoothie.vim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/autoload/smoothie.vim b/autoload/smoothie.vim
index b61904f..73e0b0d 100644
--- a/autoload/smoothie.vim
+++ b/autoload/smoothie.vim
@@ -183,7 +183,7 @@ endfunction
 " TODO: current algorithm is rather crude, would be good to research better
 " alternatives.
 function s:compute_velocity()
-  return g:smoothie_base_speed * (s:target_displacement + s:subline_position)
+  return g:smoothie_base_speed * (s:target_displacement - s:subline_position)
 endfunction
 
 ""