a

1 files changed, 38 insertions, 0 deletions

diff --git a/config/mpv/scripts/subs2srsa/utils/switch.lua b/config/mpv/scripts/subs2srsa/utils/switch.lua
new file mode 100644
index 0000000..5dac1c6
--- /dev/null
+++ b/config/mpv/scripts/subs2srsa/utils/switch.lua
@@ -0,0 +1,38 @@
+--[[
+Copyright: Ren Tatsumoto and contributors
+License: GNU GPL, version 3 or later; http://www.gnu.org/licenses/gpl.html
+
+Switch cycles between values in a table.
+]]
+
+local make_switch = function(states)
+    local self = {
+        states = states,
+        current_state = 1
+    }
+    local bump = function()
+        self.current_state = self.current_state + 1
+        if self.current_state > #self.states then
+            self.current_state = 1
+        end
+    end
+    local get = function()
+        return self.states[self.current_state]
+    end
+    local set = function(new_state)
+        for idx, value in ipairs(self.states) do
+            if value == new_state then
+                self.current_state = idx
+            end
+        end
+    end
+    return {
+        bump = bump,
+        get = get,
+        set = set,
+    }
+end
+
+return {
+    new = make_switch
+}