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UnitXP Service Pack 3

WoW Vanilla 1.12.1 mod giving Classic style nameplate hiding behaviour and better TAB key functions and background notifications.

I don't take ANY responsibility if this mod is originate in Burning Legion, or it would crash you game, or some Turtle ban your account. USE AT YOUR OWN RISK.

How to install

  1. Download UnitXP-SP3-with-loader.zip from https://github.com/allfoxwy/UnitXP_SP3/releases/latest
  2. Unzip everything into same place with WoW.exe
  3. Move UnitXP_SP3_Addon into WoWclient/Interface/AddOns/
  4. Run Enable sideload-DLL.exe
  5. Start game with WoW_sideload-DLL.exe

Additional tips:

  • You could delete Enable sideload-DLL.exe after installation, it's a huge file because of Node.js
  • Currently Node.js needs Windows 8.1 to operate. UnitXP_SP3.dll itself works on elder Windows, you might try using VanillaFixes loader for it on elder Windows.

How to use it in game

  • With the Lua Addon installed, you could acccess it from game's ESC menu.

menu

Targeting function (for TAB key)

This mod adds a few targeting functions to help you have a better TAB.

Currently when continuously trigger these functions, you may experience a small lag between switching target. I believe this is because game needs a server communication to obtain Target of Target information. I wish I could find a better way in future.

Functions could be accessed via Key Bindings menu, or via macro.

keybindings

Nearest targeting

  • /script UnitXP("target", "nearestEnemy");

Return TRUE when found a target.

Target nearest enemy. It is the one and the only one nearest enemy. No bullshit. And it follows rules:

  • Only target attackable enemy.
  • Only target livings.
  • Only target enemy in line of sight.
  • Only target enemy in front of player camera.
  • Maximum range is 200 yards.
  • In PvP, it ignores Pets and Totems.
  • When player is in-combat, it only target in-combat enemy.

Raid mark targeting

  • /script UnitXP("target", "nextMarkedEnemyInCycle");
  • /script UnitXP("target", "previousMarkedEnemyInCycle");

Return TRUE when found a target.

These functions only target mobs with a mark icon in order:

  1. Skull
  2. Red X cross
  3. Blue square
  4. Moon
  5. Green triangle
  6. Purple diamond
  7. Orange circle
  8. Yellow star

With following rules:

  • Only target attackable enemy.
  • Only target livings.
  • Only target enemy in line of sight.
  • Only target enemy in front of player camera.
  • In PvP, it ignores Pets and Totems.
  • Maximum range is 200 yards.
  • When player is in-combat, it only target in-combat enemy.
  • When continuously triggered, it guarantees that every marked mob in range would be targeted for once.

Melee targeting

  • /script UnitXP("target", "nextEnemyConsideringDistance");
  • /script UnitXP("target", "previousEnemyConsideringDistance");

Return TRUE when found a target.

These functions are designed for melee:

  • Only target attackable enemy.
  • Only target livings.
  • Only target enemy in line of sight.
  • Only target enemy in front of player camera.
  • In PvP, it ignores Pets and Totems.
  • When player is in-combat, it only target in-combat enemy.
  • Max range is 41 yards. Enemy further than that is ignored.
  • Attack range is divided into 3 parts (0-8, 8-25, 25-41). If there is enemy in near range part, further range parts would be ignored.
  • In 0 to 8 yards. It cycles all enemies.
  • In 8 to 25 yards. Only the nearest 3 enemies would be cycled.
  • In 25 to 41 yards. Only the nearest 5 enemies would be cycled.
  • When no target, it selects the nearest.

Ranged targeting

  • /script UnitXP("target", "nextEnemyInCycle");
  • /script UnitXP("target", "previousEnemyInCycle");

Return TRUE when found a target.

These functions are designed for ranged:

  • Only target attackable enemy.
  • Only target livings.
  • Only target enemy in line of sight.
  • Only target enemy in front of player camera.
  • In PvP, it ignores Pets and Totems.
  • When player is in-combat, it only target in-combat enemy.
  • Max range is 41 yards. Enemy further than that is ignored.
  • When continuously triggered, it guarantees that every mob in range would be targeted for once.
  • When no target, it selects the nearest.

World boss targeting

  • /script UnitXP("target", "worldBoss");

Return TRUE when found a world boss.

World boss needs special attention:

  • Only target attackable enemy.
  • Only target livings.
  • Only target enemy in line of sight.
  • Only target enemy in front of player camera.
  • Maximum range is 200 yards.
  • When player is in-combat, it only target in-combat enemy.
  • When continuously triggered, it guarantees that every world boss in range would be targeted for once.

Range cone

"In front of player camera" is defined by a factor which could be adjusted with:

  • /script UnitXP("target","rangeCone", 2.2);

When this range cone factor in its minimum value 2, the cone is same as game's Field of View.

By default it's 2.2 . Increasing the factor would narrow the cone, so that only mobs in the center of vision would be targeted.

Using multiple targeting function together

For example: "We target raid mark first. However when no mark, we cycle in magic range":

  • /script local _=(UnitXP("target","nextMarkedEnemyInCycle") or UnitXP("target","nextEnemyInCycle"));

This code works because targeting functions return TRUE or FALSE indicating if they got a target. LUA logic operators support short-cut evaluation, that is, they evaluate their second operand only when necessary.

Hide nameplate behind wall (for V key)

Vanilla client only check distance for nameplates. This makes mobs behind wall/door also show up their nameplates.

This mod changes Vanilla behaviour to Classic style:

  • Only those mobs in player's sight would receive a nameplate
  • If you move your camera really close, you could see through a wall for a short distance

LUA nameplate addon would work out-of-box, no need to change anything.

By default this feature is enabled. You could toggle its switch:

  • /script UnitXP("modernNameplateDistance", "enable");

  • /script UnitXP("modernNameplateDistance", "disable");

Check if two units are in line of sight to each other

  • /script local result = UnitXP("inSight", UNIT_ID, UNIT_ID);print(result);

UNIT_ID could be "player", "target"... also GUID string "0x12345"

Return TRUE for in sight, FALSE for NOT in sight, NIL for error.

This function has limitation:

  • This is an expensive function. Basically it is raytracing on CPU. So it is recommended to check distance (or apply other filters such as friend/foe) before calling this function.
  • It works locally, no server communication, not precisely accurate.
  • I don't know how to read object's height, so this function treat everything as Human height.

Measure distance between two units

  • /script local result = UnitXP("distanceBetween", UNIT_ID, UNIT_ID);print(result);

UNIT_ID could be "player", "target"... also GUID string "0x12345"

Return a number, or NIL for error.

Flash operating system's taskbar icon when game is in background

  • /script UnitXP("notify", "taskbarIcon");

Flash would stop when game back to foreground.

To make this function link with certain game events like whisper/trade/invitation etc, we need the LUA Addon.

Play operating system's event sound when game is in background

  • /script UnitXP("notify", "systemSound", "SystemDefault");

Only work when game is in background.

To make this function link with certain game events like whisper/trade/invitation etc, we need the LUA Addon.

Tell if UnitXP_SP3 functions available

These only work with included vanilla-dll-sideloader, VanillaFixes loader skip them.

When mod loads, it adds some globals to LUA:

  • Vanilla1121mod.UnitXP_SP3
  • Vanilla1121mod.UnitXP_SP3_inSight
  • Vanilla1121mod.UnitXP_SP3_distanceBetween
  • Vanilla1121mod.UnitXP_SP3_modernNameplateDistance
  • Vanilla1121mod.UnitXP_SP3_target
  • Vanilla1121mod.UnitXP_SP3_notify

You could check their existance to tell if certain function is available.

Some notes for compiling the code

  • I used MS VS 2022. There are elder post says GCC won't work.
  • I staticly link MinHook. So UnitXP_SP3 also have "C/C++ > Code Generation > Runtime Library > Multi-threaded(/MT)"
  • It's an elder game so we don't use advanced instructions from modern CPU: "C/C++ > Code Generation > Runtime Library > Enable Enhanced Instruction Set > No Enhanced Instructions (/arch:IA32)"
  • x32 has a limited memory space. I think it would be better our program use less memory: "C/C++ > Optimization > Optimization /O1 and Favor small code /Os"
  • I used C++ 17 features so "C/C++ > Language > C++ Language Standard > ISO C++ 17 Standard(/std:c++17)"
  • Linked with libMinHook.x86.lib and Winmm.lib

MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.