added load resource pack with offset feature

updated variables to use size_t

removed line break to make code style more consistent

added conditional check to return an error if offset field is used when loading a ZIP package

fixed typo

formatted file

added commit regarding self contained exe files

handled error loging for load zip file with offset

spelling tweak

updated conditional statement for magic check

udpated error message when load Zip file with offset is called

fix CI

Trying to fix CI

fix CI done

Added error message for loading self-contained exe with offset.

Updated documentation.

Fix indent

final fix indent

Updated documentation.

fix indents

Updated doc based on suggestion

Final fix

fixed format

1 files changed, 4 insertions, 1 deletions

diff --git a/core/io/file_access_zip.cpp b/core/io/file_access_zip.cpp
index c3a62706c7..974bb65a18 100644
--- a/core/io/file_access_zip.cpp
+++ b/core/io/file_access_zip.cpp
@@ -147,8 +147,11 @@ unzFile ZipArchive::get_file_handle(String p_file) const {
 	return pkg;
 }
 
-bool ZipArchive::try_open_pack(const String &p_path, bool p_replace_files) {
+bool ZipArchive::try_open_pack(const String &p_path, bool p_replace_files, size_t p_offset = 0) {
 	//printf("opening zip pack %ls, %i, %i\n", p_name.c_str(), p_name.extension().nocasecmp_to("zip"), p_name.extension().nocasecmp_to("pcz"));
+	// load with offset feature only supported for PCK files
+	ERR_FAIL_COND_V_MSG(p_offset != 0, false, "Invalid PCK data. Note that loading files with a non-zero offset isn't supported with ZIP archives.");
+
 	if (p_path.get_extension().nocasecmp_to("zip") != 0 && p_path.get_extension().nocasecmp_to("pcz") != 0) {
 		return false;
 	}