The Forgotten Client - open source Tibia Client written by SaiyansKing

Gover said:

Hehe I already tried your 7.1 version and it looks great.
Maybe you have more experience with this open-source client then?
Is it smooth like vanilla one? did you maybe test it in bigger scale with more active players using it?
I will definitely test it further today.

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Mateus Robeerto said:

Hey, I tested this client too. I downloaded and compiled it without errors, but when I open it, the screen is completely glitched/corrupted.

Do you know what could cause this? Wrong pic/dat/spr, wrong assets path, or something related to the Direct3D render?

How did you get it running correctly?


View attachment 100388

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noneless said:

g_game.enableFeature(GameSpritesAlphaChannel)

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Rendering Bugfixes
-engine.cpp — LoadPicture(): Fixed pixel format for Tibia.pic — client was reading 4 bytes (RGBA) instead of 3 (RGB), causing the entire GUI to render scrambled
-protocol.cpp — getProtocolVersion() / getClientVersion(): Both were returning the override flag value (1) instead of the actual protocol version (772), causing "Protocol mismatched" on login
-surfaceDirect3D11.cpp — loadSprite() / loadSpriteMask(): Pixel copy loop was iterating texture->m_height (atlas size) instead of 32 (sprite size), causing an access violation crash when switching to D3D11
-surfaceOpengl.cpp, surfaceOpenglCore.cpp, surfaceOpengles.cpp, surfaceOpengles2.cpp — isSupported(): GL_ATI_meminfo returns 4 values but code only allocated int vram (4 bytes) — fixed to int vram[4], resolving a stack corruption crash on OpenGL renderers

Version Configuration
-const.h: Set CLIENT_OVVERIDE_VERSION = 1, CLIENT_OVERRIDE_PROTOCOL_VERSION = 772, CLIENT_OVERRIDE_FILE_VERSION = 772
-game.cpp — clientChangeVersion(): Added GAME_FEATURE_EXTENDED_SPRITES for version 772 to support .dat/.spr files with more than 65535 sprites
-gui_const.h: Replaced configure button icon with scrollbar down arrow; removed broken bottom-left/right panel border sprites


UI — Hotkeys Window
-Hotkeys.cpp: Full rewrite — new "Hotkey Options" window with F1–F12 / Shift+F1–F12 / Ctrl+F1–F12 slots, text input field, "Send automatically" checkbox, live list update on typing, auto-focus on text field after row selection, white/grey color per row based on sendAuto state
-engine.cpp — bindHotkeyAction(): New function to assign text to a hotkey slot
-engine.cpp — CLIENT_HOTKEY_ACTION handler: Implemented — sends text automatically or pastes it into chat input
-engine.h: Added bindHotkeyAction() declaration
GUI_Window.h
+ GUI_Window.cpp: Added lockActiveElement(bool) and m_lockActive — permanently locks focus on the text field after a hotkey row is selected

UI — Inventory / Soul
-Inventory.cpp
— GUI_Icons::render(): New 2D grid layout (max 6 icons, patterns: 1 / 2 / 2+1 / 2+2 / 3+2 / 3+3), anchored to absolute screen position
Inventory.cpp
— GUI_Icons:nMouseMove(): Rewritten hover tooltips to match the new 2D layout
Inventory.cpp
— inventory panel: Removed Soul background, labels and old status bar strip; status icons moved into the Soul area; panel height reduced accordingly
SkillsWindow.cpp
: Removed "Soul Points" row from the stats list and its update handler


UI — Panel Window Resize
GUI_PanelWindow.cpp
— setRect(): Children are no longer moved when only y1 changes (resize from top) — movement only happens on drag
GUI_PanelWindow.cpp
— render(): Panel background anchored to absolute screen position via setClipRect + y=0; removed resizer graphic
GUI_Panel.cpp
— checkPanels(): setRect() is now only called when position actually changed
GUI_Panel.cpp
— render(): Free-space background anchored via setClipRect
Chat.cpp
— render(): Chat background anchored to absolute screen position via setClipRect + y=0 — background tiles no longer shift during resize

Graphics Engines
surfaceSoftware.cpp — drawBackground(): Fixed pixel copy to account for window surface pitch

Automap Path
main.cpp: g_mapPath changed from AppData\TheForgottenClient\Automap\ to the directory next to the .exe — makes it easy to distribute a pre-filled minimap with the client

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1. Hotkeys — Arrow Key Navigation
Files:
Hotkeys.cpp, GUI_Element.h, GUI_ListBox.h, GUI_Window.cpp

-Added virtual bool wantsArrowKeys() to GUI_Element base class (returns false by default)
-Overridden in GUI_ListBox to return true
-GUI_Window:nKeyDown now forwards UP/DOWN to the first child that wantsArrowKeys() when the active element doesn't handle them
-Hotkeys window opens with focus on the listbox — pressing UP or DOWN immediately selects F1 (row 0) from unselected state
-After first row selection, focus locks to the textbox; subsequent arrow presses are forwarded back to the listbox

2. Server Log — Toggle Option
Files: engine.h, engine.cpp, Chat.h, Chat.cpp, GeneralOptions.cpp

-New option m_serverLogInDefault (default: true = Server Log visible) in Engine
-Saved/loaded as ServerLogInDefault in config.cfg
-New method Chat::setServerLogVisible(bool) — when false: silently removes the Server Log channel from the panel (no server packet sent), switches view to Default if Server Log was active, enables workAsServerLog on Default channel so server messages appear there instead; when true: re-opens the Server Log channel and disables the mirror
-New checkbox "Server Log Enabled" added to General Options window (window height extended from 444px to 477px, EventID 1014)
-Change applies immediately when clicking OK — no reconnect needed

3. Soul Points Tooltip — Removed
Files:
Inventory.cpp

-Removed INVENTORY_SOUL_DESCRIPTION and INVENTORY_SOUL_EVENTID defines (dead code)
-Both GUI_StaticImage instances for the status background area (minimized and maximized inventory) now pass an empty string as tooltip — no tooltip appears when hovering over the background

4. Skills Window — Soul Points Dead Code Cleanup
Files:
SkillsWindow.cpp

-Removed SKILLS_SOUL_TITLE and SKILLS_SOUL_EVENTID defines
-Removed the dead case SKILLS_SOUL_EVENTID handler from the skills event switch

5. Panel Window Drag — Ghost Image Fix
Files:
GUI_PanelWindow.cpp

-During drag, the original slot of the dragged window was rendered with a DARKGREY texture (drawPictureRepeat) — this caused a "ghost/multiplied" artifact at the source position
Replaced with fillRectangle(0, 0, 0, 255) — the slot is now filled with a clean black rectangle, matching original Tibia client behavior

6. Hotkeys — Key Repeat Support
Files: engine.cpp

-Removed event.key.repeat == 0 guard from the CLIENT_HOTKEY_ACTION handler
-Holding a hotkey now repeatedly fires the action using the OS key-repeat mechanism (SDL SDL_KEYDOWN with repeat > 0) — same timing as holding any regular key: instant first trigger, ~500ms delay, then rapid repeat

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Gover said:

This client indeed is amazing. I already implemented tooltips and rarity frames easly.

View attachment 100414

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Olddies said:

I dont know how many times i said that.. this client is much way better than otc keep working on it i bet you wont use any other client

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Mateus Robeerto said:

I was playing around with Fabian’s client and added some memory addresses from the default CIP 8.6 client. ElfBot recognized it without any problem lol.

This unlocks a lot of things. My TFS 1.8 already has several systems, like Forge, Imbuements, Prey and Market, and the client handled everything fine without issues.

It’s very smooth and optimized. On Windows, it’s using only around 17 MB, while OTCv8 can reach something like 700–900 MB.

I’m really liking Fabian’s client. I’m sure there’s a lot of room to improve it even more.

Post automatically merged: May 17, 2026

I still don’t understand why OTLand never forked Fabian’s TFS.


His TFS is much superior, very optimized and robust. I already tested it several times and I’m really enjoying it. I even took some ideas from his code and implemented them into my TFS 1.8.


And also, why didn’t OTLand fork Fabian’s client?


That client is unreal. It is still incomplete, yes, but it has a lot of potential. With enough fixes and improvements, it could become almost 100% perfect, very close to the original CIP client in visual, behavior and everything else.


Fabian is a genius.

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