Possible problems:

• not all mpq archives are used
• txt files and mpq archives are out of sync

• trigger footstep sound periodically, disregard animation timeline
• take into account dt1 sound index
• depends on the unit and equip

Description of the parameters here:
http://d2mods.info/forum/viewtopic.php?f=6&t=58717&view=next

Currently, whole world is simulated every frame. It's not feasible to compute when all levels will be created. Also, CollisionMap will not fit into the memory.
Need to do:

• Simulate only part of the world near the player/camera
• Store only simulated part of the world in the collision map
• Upgrade WorldRenderer so that it renders only visible part of the world

Sometimes items and monster labels are shown out of the screen area. It should be fixed.

Cursor is as of now still static

Object drop section: https://diablo2.diablowiki.net/Item_Generation_Tutorial

• attack and weapon
• get hit
• death
• init
• taunt
• neutral
• footsteps

weapons.txt, skills.txt, missiles.txt and may be some others have HitClass property which should be mapped to particular sounds from Sounds.txt.

I can easily get this package for my Linux Mint 17.3 to start compiling C# files:
mono-mcs - Mono C# 2.0 / 3.0 / 4.0 / 5.0 compiler for CLI 2.0 / 4.0 / 4.5

http://paul.siramy.free.fr/_divers2/tmptutcmap/
http://d2mods.info/forum/viewtopic.php?f=6&t=60164
http://d2mods.info/forum/viewtopic.php?f=4&t=18895

Txt files reference:
SuperUnique.txt Utrans
Monstats.txt transLvl
Monstats2.txt Utrans

Colormaps files:
data\global\monsters\*\cof\palshift.d2
data\global\monsters\RandTransforms.dat

• Visual effect, raindrops
• Sound effect
• Intensity levels
• Day/night variations
• Use LevelInfo.room property (no rain in caves)

Already implemented:

• parsing from txt files
• positioning in the world space
• selection
• activation trigger

Need to implement:

• actual hero transition

A possible solution is to not use Unity's cursor for this purpose.

• Parse Properties.txt
• Parse ItemStatCost.txt
• Properties parameters
• Description string formatting

Such objects like barrels should be kicked by the character instead of instant activation.

Visual appearance of the player character should reflect his wearing.

Create automated build using Unity Cloud Builds. It requires update to unity 2017.1, because of the following issue:
https://issuetracker.unity3d.com/issues/error-apiupdater-encountered-some-issues-dot-dot-dot-appear-when-using-script-updater-on-script-with-unsafe-code

• Make the labels highlightable with mouse hover
• Implement clicking behavior on the labels (the same as clicking on loot directly)
• Layout the labels so that they do not overlap
• Pool labels
• Fix bug when labels are overlapped
• Regression: Do not highlight through the inventory
• Allow player movement when the cursor is over a loot label
• Regression: entities should not be selectable/interactable through the HUD and inventory
• Tech debt: Show label only for loot on the screen
• Tech debt: Do not exceed screen bounds
• Bug: labels are changing positions on the first frame of Alt-click
• Optimize for a lot of dropped items (>500)
• Improvement: Limit the number of labels and implement some kind of filter
• Improvement: Layout horizontally in addition to vertical

SetItems.txt http://d2mods.info/index.php?ind=reviews&op=entry_view&iden=348
Sets.txt http://d2mods.info/index.php?ind=reviews&op=entry_view&iden=349

• Parse SetItems.txt
• Parse Sets.txt
• Item name and description title
• Blue properties
• Green properties
• Gold properties
• Override inventory graphics
• Override flippy graphics
• Override sounds
• Use rarity
• Rare drop fallback
• Apply level requirement
• Same items list order as in SetItems.txt

COF files contain information about which frame should trigger some event (perform attack, launch missile etc). Currently COFAnimator triggers on the middle frame of animation sequence.

Currently DC6 loader loads first frame of first direction only. It needs to be fully implemented the same way as DCC does, including frames offsets and correct sprites creation/positioning.

Characters shouldn't overlap while moving. Also characters should use more CollisionMap cells (only one at the moment).

Sometimes DCC decoder is running out of memory buffer. It leads to blinking white frames.

Subtasks:

• create UI
• expand UI on pointer over
• toggle UI expand on tilde pressing
• manual items placement
• automatic picked up items placement
• items highlighting
• items tooltips
• usage hotkeys
• different belt sizes (depth)
• don't forget already belted items when switching to a less capable belt
• inventory convinence hotkeys (Shift+LMB to put items to the belt)

Check out misc.txt: http://d2mods.info/index.php?ind=reviews&op=entry_view&iden=317
Fields: belt, beltable

https://diablo2.diablowiki.net/Item_Generation_Tutorial

• items generated according to the monster treasure class
• all types of items is generated (weapon, armor, misc)
• items quality (normal, unique, etc)
• treasure class upgrades according to monster level and type (unique, super unique, etc)

https://diablo2.diablowiki.net/Item_Generation_Tutorial#Affix_selection

• Parse MagicSuffix.txt, MagicPrefix.txt
• Select prefix and/or suffix
• Take into account rarity
• Take into account items types filters
• Use mod parameters
• Magic items name

Items collide with themself only, here is a screenshot from original:

In the current implementation, it collides with missiles and characters, which is very inconvenient and confusing.

Some tiles are not colliding. Examples: Akara hut, wagon at the south of town.

It's stored in SkillDesc.txt:
http://d2mods.info/index.php?ind=reviews&op=entry_view&iden=370

It's very visible on zombies, for example.

Heroes and most of the monsters have alternative attack animation (A2 codename). Only A1 is used at the moment.

Currently character animations speed are ugly dispatched in the COF.Load function.
Need to figure out exact formula to calculate creatures animation speed.
It does involve all animations which can be modified somehow in the game: attack, walk, run, cast, etc.
It doesn't related to idle/neutral animations.

Both loading and rendering should be implemented.
See lower walls coordinate system http://paul.siramy.free.fr/_divers/dt1_doc/

All glyphs are truncated from the top

All sounds are enumerated in Sounds.txt file. All files are in wav format.
Most probable way to do this is to use AudioClip.Create (https://docs.unity3d.com/ScriptReference/AudioClip.Create.html).

remove them

• Parse UniqueItems.txt
• Item name
• Generate items properties
• Override inventory graphics
• Override flippy graphics
• Override sounds
• Use rarity
• Rare drop fallback
• Apply level requirement

Implement gold as a value rather than dummy item.

• Find a place to store gold amount in item/pickup
• Display gold amount in pickup text
• Gold amount generation during item drop
• Different gold piles/flippy depending on amount (1-99, 100-499, 500-4999, 5000-...)
• Find a place to store gold amount (may be Character class, and rename existing Character to Creature or Pawn)
• Display current balance as text in inventory
• Drop gold button