🧋 a tiny plugin for smoother movement keybinds
feat: add zz align
+49
+49
plugin/smoothie.lua
+49
plugin/smoothie.lua
···
96
96
end)
97
97
end
98
98
99
+
function M.align()
100
+
local win = vim.api.nvim_get_current_win()
101
+
102
+
local function step(delta, m, start, dst)
103
+
local diff = dst.row - start.row
104
+
105
+
-- reached dst or overshot
106
+
-- - diff == 0: no more distance to travel
107
+
-- - diff * m: both need to be oriented in the same direction (positive product)
108
+
if diff == 0 or diff * m < 0 then
109
+
return true
110
+
end
111
+
112
+
-- travel t of the current diff (ceiled), at least 1
113
+
local s = math.max(1, math.ceil(H.coillerp(math.abs(diff), delta)))
114
+
start.row = start.row + (m * s)
115
+
116
+
vim._with({ win = win }, function()
117
+
for _ = 1, s do
118
+
local key = vim.api.nvim_replace_termcodes(m > 0 and "<c-y>" or "<c-e>", true, false, true)
119
+
vim.api.nvim_feedkeys(key, "n", false)
120
+
end
121
+
end)
122
+
end
123
+
124
+
M.smooth(win, step, function()
125
+
local buf, lnum, col = unpack(vim.fn.getpos("."))
126
+
local start = vim.pos.cursor(buf, { lnum, col })
127
+
128
+
local m
129
+
local wfirst = vim.fn.getpos("w0")[2]
130
+
local wlast = vim.fn.getpos("w$")[2]
131
+
-- no lines are visible
132
+
if wlast < wfirst then
133
+
m = 0
134
+
end
135
+
local dst = vim.pos.cursor(buf, { math.ceil(wfirst + (wlast - wfirst) / 2), col })
136
+
local diff = dst.row - start.row
137
+
m = m or diff / math.abs(diff)
138
+
139
+
return { m, start, dst }
140
+
end)
141
+
end
142
+
99
143
vim.keymap.set("n", "<plug>(smoothie-ctrl-d)", function()
100
144
vim._with({ win = 0 }, function()
101
145
M.scroll(vim.v.count1)
···
104
148
vim.keymap.set("n", "<plug>(smoothie-ctrl-u)", function()
105
149
vim._with({ win = 0 }, function()
106
150
M.scroll(-vim.v.count1)
151
+
end)
152
+
end)
153
+
vim.keymap.set("n", "<plug>(smoothie-zz)", function()
154
+
vim._with({ win = 0 }, function()
155
+
M.align()
107
156
end)
108
157
end)
109
158