Patch.tjs Xp3filter.tjs -

Based on the filenames Patch.tjs and Xp3filter.tjs, you are likely looking at Kirikiri/Z-Game Engine (often used for visual novels). These files are typically used for modding, extraction, or file replacement without modifying the original game archives (.xp3 files).

Here are the specific features these two files provide when used together: Patch.tjs Xp3filter.tjs

Xp3filter.tjs (redirects message.ks):

class Xp3Filter 
    function filterFile(archive, filename, data) 
        if (filename === "system/message.ks") 
            var translated = openLocalFile("patch/message_en.ks", "rb");
            if (translated) return translated.readAll();
return data;

Patch.tjs (overrides text function):

var originalShowText = Layer.prototype.showText;
Layer.prototype.showText = function(text, ...args) 
    text = replaceWithDictionary(text);
    return originalShowText.call(this, text, ...args);
;