Add walking cat animation in terminal

lua/pawtocomplete/config.lua

@@ -16,6 +16,10 @@ local config = {
     max_height = 6,
     delay = 100,
   },
+  walk = {
+    speed = 100,
+    step = 1,
+  },
 }
 
 M.merge_option = function(opt)

lua/pawtocomplete/init.lua

@@ -1,3 +1,4 @@
+local api = vim.api
 local M = {}
 
 M.setup = function(opts)
@@ -9,6 +10,15 @@ M.setup = function(opts)
 
   completion.setup()
   signature.setup()
+
+  api.nvim_create_user_command('PawWalk', function()
+    local conf = require('pawtocomplete.config').get_config()
+    require('pawtocomplete.walk').walk(conf.walk)
+  end, {})
+
+  api.nvim_create_user_command('PawStop', function()
+    require('pawtocomplete.walk').stop()
+  end, {})
 end
 
 return M

lua/pawtocomplete/walk.lua

@@ -0,0 +1,101 @@
+local api = vim.api
+local uv = vim.uv or vim.loop
+
+local M = {
+  timer = nil,
+  win = nil,
+  buf = nil
+}
+
+local frames = {
+[[
+  |\__/,|   (`\
+|_ _  |.--.) )
+( T   )     /
+(((^_((_(((_/
+]],
+[[
+  |\__/,|   (`\
+|_ _  |.--.) )
+( T   )     /
+ ((_((_((_((_/
+]]
+}
+
+function M.stop()
+  if M.timer then
+    M.timer:stop()
+    M.timer:close()
+    M.timer = nil
+  end
+  if M.win and api.nvim_win_is_valid(M.win) then
+    api.nvim_win_close(M.win, true)
+    M.win = nil
+  end
+end
+
+function M.walk(opts)
+  M.stop()
+
+  opts = opts or {}
+  local speed = opts.speed or 100
+  local step = opts.step or 1
+
+  M.buf = api.nvim_create_buf(false, true)
+  api.nvim_set_option_value('bufhidden', 'wipe', { buf = M.buf })
+
+  local width = 18
+  local height = 4
+
+  local row = api.nvim_get_option('lines') - height - 3
+  local col = 0
+
+  M.win = api.nvim_open_win(M.buf, false, {
+    relative = 'editor',
+    row = row,
+    col = col,
+    width = width,
+    height = height,
+    style = 'minimal',
+    border = 'none',
+    zindex = 100,
+  })
+
+  api.nvim_set_option_value('winhl', 'Normal:NormalFloat', { win = M.win })
+
+  local frame_idx = 1
+  local current_col = col
+
+  M.timer = uv.new_timer()
+  M.timer:start(0, speed, vim.schedule_wrap(function()
+    if not M.win or not api.nvim_win_is_valid(M.win) then
+      M.stop()
+      return
+    end
+
+    local lines = vim.split(frames[frame_idx], '\n')
+    -- Remove trailing empty line if any
+    if lines[#lines] == "" then table.remove(lines) end
+
+    api.nvim_buf_set_lines(M.buf, 0, -1, false, lines)
+
+    frame_idx = (frame_idx % #frames) + 1
+    current_col = current_col + step
+
+    local max_cols = api.nvim_get_option('columns')
+    local current_row = api.nvim_get_option('lines') - height - 3
+    if current_col > max_cols then
+      current_col = -width
+    end
+
+    api.nvim_win_set_config(M.win, {
+      relative = 'editor',
+      row = current_row,
+      col = current_col,
+      width = width,
+      height = height
+    })
+  end))
+end
+
+return M