FLEP (FLExible Patcher) aka TREP2

Table of contents

1. What is this?

2. Features

3. What's new?

4. What is this?

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FLEP is a multi-purpose binary patcher, which can be used to create, manage and apply different binary patches to different files. Primarily, it was developed for Tomb Raider community to operate with so-called TRNG binary file (tomb4.exe, which is used to play custom Tomb Raider levels built with patched level editor).

FLEP's source code is primarily based on old TRLE patcher utility called TREP, which was done in VB6. Generally, code was refactored, cleaned up, some modern approaches and UI tricks were used to make it look more modern and less lame.

2. Features

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• 1. Almost completely rewritten and refactored source code. As result, application works much faster.
• 2. New interpreter of static patches. It now supports not only raw hex strings, but also some different commands which alter patching behaviour - SetFileLength and Fill.
• 3. Allows to simultaneously patch numerous binaries.
• 4. Supports additional parameter types - strings, float, 8/16 bits and A,B,C byte sequences (useful for RGB values).
• 5. Supports unlimited amount of patches, also unlimited amount of offsets and parameters for each.
• 6. Each parameter can now have several offsets, this way you can simultaneously change similar values in binary with just only one parameter slot.
• 7. Each parameter now has its own conditional behaviour switch.

3. What's new?

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• 1.1.41 - RGB data type modified to support scattered offsets for each colour byte (divide them with "|" symbol).

• 1.1.38 - Minor code refactoring, fixed wrong patch set / preset handling.

• 1.1.31 - Quick overflow fix for last bit of bits(16) datatype.

• 1.1.30 - Hex types replaced with new bit types, modified parameter view a bit to support multi-column mode, added copy function, minor interface fixes and speed-ups.

• 1.0.86 - Fixed param list killing with escape button, re-done patching method with kernel32 routines (faster), fixed various bugs with moving patch up/down, added minimize button, added color picker for RGB param.

• 1.00b - Beta version. Fixed various UI bugs, changed preset format a bit.

• 1.00a - Initial alpha version.