From bf09c18f0c6ff4b14f4fad1909f9839d0a3aeca2 Mon Sep 17 00:00:00 2001
From: odrling <florianbadie@odrling.xyz>
Date: Sat, 3 Aug 2019 20:42:33 +0200
Subject: [PATCH] add karaoke-adjust-1sec with mugenizer

---
 README.md               |  11 +++++
 karaoke-adjust-1sec.lua | 104 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 115 insertions(+)
 create mode 100644 karaoke-adjust-1sec.lua

diff --git a/README.md b/README.md
index 7fb41a3..435fc63 100644
--- a/README.md
+++ b/README.md
@@ -23,3 +23,14 @@ becomes
 
 	shimese {\c&H003D45FF&\3c&H00020261&\4c&H00020261&}atsuki yume no {\c&H002092FD&\3c&H00003364&\4c&H00003364&}makuake wo
 
+Karaoke 1sec adjust lead-in
+---------------------------
+
+Adds a `{\k100}` at the beginning of your line so your line appears 1s earlier (and people will be able to sing).
+
+Mugenizer
+---------
+
+Select all the lines of your karaoke, launch the Mugenizer and it will remove our lead-ins and add mugen's karaoke script.
+Then in "Automation" you can run "Apply karaoke template" and you're ready to submit your karaoke to Mugen.
+
diff --git a/karaoke-adjust-1sec.lua b/karaoke-adjust-1sec.lua
new file mode 100644
index 0000000..dae8cfc
--- /dev/null
+++ b/karaoke-adjust-1sec.lua
@@ -0,0 +1,104 @@
+local tr = aegisub.gettext
+
+script_name = tr"Karaoke 1sec adjust lead-in"
+script_description = tr"Adjust karaoke leadin to 1sec"
+script_author = "Flore"
+script_version = "1.00"
+
+include("cleantags.lua")
+
+leadinmsec = 1000 --lead in time can be changed here
+
+ktag = "\\[kK][fo]?%d+" --pattern used to detect karaoke tags
+
+
+function hasleadin(line)--check if there is an existing lead in (2 consecutive bracket with karaoke tags at the start of the line)
+        return line.text:find("^{[^{}]-" .. ktag .. "[^{}]-}%s*{[^{}]-" .. ktag .. "[^{}]-}")
+end
+
+
+function removeleadin(line)
+    if not hasleadin(line) then
+        return line
+    end
+
+    leadin = tonumber( line.text:match("^{[^{}]-\\[kK][fo]?(%d+)[^{}]-}%s*{[^{}]-" .. ktag .. "[^{}]-}") ) --read lead-in value
+    line.text = line.text:gsub("^({[^{}]-)\\[kK][fo]?%d+(.-}%s*{[^{}]-" .. ktag .. ".-})","%1%2")  --remove lead in
+
+    line.text = cleantags(line.text) --clean tags
+
+    line.start_time = line.start_time +  leadin*10 --adjust start time
+
+    --aegisub.log(line.text)
+
+    return line
+end
+
+
+function adjust_1sec(subs, sel)
+
+    for _, i in ipairs(sel) do
+        local line = subs[i]
+
+        line.text = cleantags(line.text)
+
+        if( line.text:find(ktag)) then--don't do anything if there is no ktags in this line
+
+            --start by removing existing lead-in
+            while hasleadin(line) do
+                    if aegisub.progress.is_cancelled() then return end
+                    line = removeleadin(line)
+            end
+
+            --then add our lead in
+
+            if line.start_time >= leadinmsec then
+                    line.text = string.format("{\\k%d}%s",leadinmsec/10, line.text)
+                    line.start_time = line.start_time - leadinmsec
+
+            else --if line starts too early to put the needed lead in, make the line start at time 0 and fill with appropriate lead in
+                    line.text = string.format("{\\k%d}%s",line.start_time/10, line.text)
+                    line.start_time = 0
+            end
+
+            subs[i] = line
+        end
+    end
+
+    aegisub.set_undo_point(tr"1sec adjust lead-in")
+end
+
+function mugenizer(subs, sel)
+    local first = true
+    local line
+
+    for _, i in ipairs(sel) do
+
+        -- add mugen's magic line
+        if first then
+            line = subs[i]
+            line.comment = true
+            line.start_time = 0
+            line.end_time = 0
+            line.effect = "template pre-line all keeptags"
+            line.text = '!retime("line",$start < 900 and -$start or -900,200)!{!$start < 900 and "\\\\k" .. ($start/10) or "\\\\k90"!\\fad(!$start < 900 and $start or 300!,200)}'
+            subs.insert(i, line)
+            line.text = cleantags(line.text)
+            first = false
+        end
+
+        line = subs[i]
+        if (line.text:find(ktag)) then--don't do anything if there is no ktags in this line
+            while hasleadin(line) do
+                if aegisub.progress.is_cancelled() then return end
+                line = removeleadin(line)
+            end
+
+            subs[i] = line
+        end
+
+    end
+end
+
+aegisub.register_macro(script_name, script_description, adjust_1sec)
+aegisub.register_macro(tr"Mugenizer", tr"Mugenize your subs", mugenizer)