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Daniel S. 2021-05-22 23:32:22 +02:00
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20
notes/book.toml
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@ -4,22 +4,14 @@ language = "en"
multilingual = false multilingual = false
src = "src" src = "src"
title = "Scrapland Reverse Engineering Notes" title = "Scrapland Reverse Engineering Notes"
[output.linkcheck]
[output.html] [output.html]
preferred-dark-theme = "ayu" preferred-dark-theme = "rust"
mathjax-support = true mathjax-support = true
additional-js = ["mermaid.min.js", "mermaid-init.js"]
site-url = "https://earthnuker.keybase.pub/ScrapHacks/"
# [preprocessor.graphviz]
# command = "mdbook-graphviz"
[preprocessor.svgbob] [preprocessor.mermaid]
text_width = 8.0 command = "mdbook-mermaid"
text_height = 16.0
class = "bob"
font_family = "arial"
font_size = 14.0
stroke_width = 2.0
# there's using css-variables from theme:
stroke_color = "var(--fg)" # see default theme / variables.css
background_color = "transparent" # also useful `var(--bg)`
# all properties are optional.

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mermaid.initialize({
startOnLoad:true,
});

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# Appendix

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# Classes
<!-- TODO: autogenerate? -->
`new()` @ 0x415ca0
`delete()` @ 0x415cb0
> Lots of constructor calls at `0x68367b`
| Name | Size | Constructor | VMT | Inherits From |
| --------------- | ------ | ----------- | -------- | ------------- |
| Action | 0xc | 0x584d50 | 0x790fe0 | |
| ActionClassList | 0x724 | 0x582eb0 | 0x790fb4 | |
| App | ??? | 0x4023e0 | 0x78b4d8 | |
| Cam | 0x13c | 0x4b1210 | 0x78d2d8 | Entity |
| CamPath | 0x1788 | 0x4b1a50 | 0x78d340 | Cam |
| Car | 0x970 | 0x49b300 | 0x78cd40 | WithLife |
| Entity | 0x7c | 0x4e97e0 | 0x78da88 | |
| EntityList | 0xa4 | 0x474d70 | ??? | |
| FCam | 0x274 | 0x4b28e0 | 0x78d3a8 | Cam |
| Missile | 0x9a4 | 0x4ec120 | 0x78db90 | WithLife |
| Obj | 0x288 | 0x4efa40 | 0x78dca8 | Entity |
| SaveVar | 0xc | 0x416540 | | |
| WalkChar | 0x760 | 0x4cdf90 | 0x78d4d8 | WithLife |
| Window | 0x88 | 0x4010e0 | 0x78b480 | App |
| WithLife | 0x544 | 0x4f2a60 | 0x78de00 | Obj |
| World | 0x225c | 0x479870 | 0x78cc6c | |
| item | 0x458 | 0x4ea790 | 0x78dad8 | Obj |
| Py_Entity | ???? | ??? | ??? | |
## Class Inheritance
```mermaid
graph LR
World
ActionClassList
SaveVar
App --> Window
Cam --> CamPath
Entity --> Cam
Cam --> FCam
Entity --> Obj
Obj --> item
Obj --> WithLife
WithLife --> Car
WithLife --> WalkChar
WithLife --> Missile
```
# Attributes (VMT index 16,17,18 for accessor functions)
## Entity
- LLogic
- Name
- Type
- EntityList
- NextInSlot
- NextInList
## FCam
- OnSwitch
- QuakeFactor
- MainTarget
- Target
- EntityLink
- QuakeFactor
- QuakeTime
- HSpeed
- VSpeed
- RetSpd
- CamDist
- CamAng
- CamRot
- AddTurn
- AddTurnSpeed
## Cam
- Fov
- clipNear
- clipFar
-
## Obj
- OnEndMove
- CamName
- NetRes
- OnObjSlot
- LinkModel?
## item
- TakeSound
- OnReset
- OnTake
- Owner
- TgTypeMarker
## Car
- Traf
- Model
- Target
## WithLife
- Descriptor
- Attacker
- ActCtrl
- HeadModel
- Pyromaniac
- OnDeath
- Hit?
- OnDamage
- CanPhoto
- AlwaysUse
- ArrowCanView
- ArrowCanMission
- ArrowCanUse
- ArrnOpt
- ArriOpt
- UseAngSel
- UseMapCheck
- UseAbsAngSel

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# Entities

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# MultiSpriteTable
```cpp
struct Tile {
uint16_t pos[2];
uint16_t size[2];
}
struct MST {
char magic[4]; // always "MST\0"
uint32_t data_size;
uint32_t version; // should be 100
uint32_t image_size[2]; // width and height of base image
uint32_t num_tiles; // number of tiles/subsprites
Tile tiles[num_tiles];
}
```

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@ -1 +1,6 @@
# Overview # Overview
- Developer Studio: Mercury Steam
- Engine: [ScrapEngine](./ScrapEngine.md)
- Scripting System: embedded Python 1.5.2 interpreter
- Game Data Archive Format: [.packed](./packed.md)

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@ -3,9 +3,9 @@
## SScorer ## SScorer
- *SetCursor*: `<built-in function SetCursor>` - *SetCursor*: `<built-in function SetCursor>`
```
SetCursor(playernumber,CursorName) : pone un item del scorer como cursor SetCursor(playernumber,CursorName) : pone un item del scorer como cursor
```
- *Show*: `<built-in function Show>` - *Show*: `<built-in function Show>`
``` ```
Show(playernumber) : Activa el scorer. Show(playernumber) : Activa el scorer.

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notes/src/SUMMARY.md
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@ -2,12 +2,17 @@
- [Overview](./Overview.md) - [Overview](./Overview.md)
- [ScrapEngine](./ScrapEngine.md) - [ScrapEngine](./ScrapEngine.md)
- [World](./World.md) - [Engine Variables](./Variables.md)
- [Entities](./Entities.md) - [Classes](./Classes.md)
- [World](./World.md)
- [Netplay](./Netplay.md) - [Netplay](./Netplay.md)
- [Python API](./Python_API.md) - [Python API](./Python_API.md)
- [Modules](./Python_Modules.md)
- [File Formats](./File_Formats.md) - [File Formats](./File_Formats.md)
- [Chunked Formats](./Chunked.md) - [Chunked Formats](./Chunked.md)
- [Packed](./Packed.md) - [Packed](./Packed.md)
- [AI Nodegraph](./Nodegraph.md) - [AI Nodegraph](./Nodegraph.md)
- [ScrapHacks](./ScrapHacks.md) - [MultiSpriteTable](MultiSpriteTable.md)
- [ScrapHacks](./ScrapHacks.md)
- [Appendix](./Appendix.md)
- [PE Metadata](./PE_metadata.md)

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notes/src/ScrapEngine.md
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@ -1,15 +1,45 @@
# ScrapEngine # ScrapEngine
- Based on Mercury Engine
- Ingame Scripting Language: Python 1.5.2 - Ingame Scripting Language: Python 1.5.2
- Interesting memory locations and functions are noted in `config.yml`
## Launch options ## Launch options
Checked in `0x00401010`
- `-console`: open external console window on start - `-console`: open external console window on start
- `-wideWindow`: start game in widescreen mode - `-inifile`: *unknown* some kind of `.ini` file, seems to be related to `m3d.ini` in `Data.packed`
Checked in `0x004039b0`
- `-build`: Rebuild `Data.packed` (needs a `filelist.2Bpack`)
- `-dedicated`: start in multiplayer dedicated server mode (needs to be used with `-server`) - `-dedicated`: start in multiplayer dedicated server mode (needs to be used with `-server`)
- `-server`: start in multiplayer server mode - `-server`: start in multiplayer server mode
- `-build`: Rebuild `Data.packed` (needs a `filelist.2Bpack`)
Checked in `0x00401180`
- `-wideWindow`: start game in widescreen mode
## Files
- `engine.txt`: Contains engine commands? Lexer/Parser @ `0x6168a0`
- Errors get printed to Scene graph debugging console
- Command buffer @ `0x8c1b30`
- Commands:
- `Load`: Load Model?
- `AddAnim`: Load Animation data?
- `PlayAnim`: Play Animation?
- `PivotPos`: ?
- `FUNDIR_NODOS`: ?
- `EFEC_MALLA`: ?
- Values:
- `true`
- `false`
- `engine.log`: Created when `engine.txt` exists
`engine.txt` containing `Load("Models/Vehicles/Ships/SBoss1/SBoss1.SM3", 1)` results in error `D:\Games\Deep Silver\Scrapland\engine.txt (1): Error: missing a ( character`
## Ingame-Console ## Ingame-Console
@ -21,9 +51,9 @@
* `?`: Show all Game Engine Variables * `?`: Show all Game Engine Variables
* `?<String>`: Show all Game Engine Variables matching `<String>` * `?<String>`: Show all Game Engine Variables matching `<String>`
* `/<command>`: Run Command defined in `QuickConsole.py` * `/<command>`: Run Command defined in `QuickConsole.py`
* `import quickconsole;quickconsole.%s()` * Expands to `import quickconsole;quickconsole.%s()`
* `/<command> <arg>,<arg>`: Run function in `QuickConsole.py` with argument(s) * `/<command> <arg>,<arg>`: Run function in `QuickConsole.py` with argument(s)
* `import quickconsole;quickconsole.%s(%s)` * Expands to `import quickconsole;quickconsole.%s(%s)`
## External Console ## External Console
@ -31,7 +61,7 @@
* `listar luces` List lights in scene * `listar luces` List lights in scene
* `listar` list models in scene * `listar` list models in scene
* `arbol <model_name>` show details for model * `arbol <model_name>` show details for model
* `mem` (doesn't do anything?) * `mem` (doesn't do anything?)
* `ver uniones` * `ver uniones`
* Easter Eggs: * Easter Eggs:
@ -52,3 +82,4 @@
- `0x8b18f0`: pointer to Models Data (can be dumped using scene graph debugging console) - `0x8b18f0`: pointer to Models Data (can be dumped using scene graph debugging console)
- `0x8b18f4`: pointer to Scenes Data (can be dumped using scene graph debugging console) - `0x8b18f4`: pointer to Scenes Data (can be dumped using scene graph debugging console)
- `0x8b18f8`: pointer to active Models Data (can be dumped using scene graph debugging console) - `0x8b18f8`: pointer to active Models Data (can be dumped using scene graph debugging console)
- for more see `config.yml`

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## Game World/State Pointer @ `0x7fe944` ## Game World/State Pointer @ `0x7fe944`
Object size: `0x225c` bytes
Constructor Address: `0x479870`
Points to World struct Points to World struct
Offset | Type | Description
------ | ------------------------ | -------------------------------------- | Offset | Type | Description |
0x0000 | `void**` | Virtual Method Table | ------ | ------------------------ | -------------------------------------- |
0x0004 | `uint32_t` | Slots in Entity Hashtable | 0x0000 | `void**` | Virtual Method Table |
0x0008 | `void**` | Pointer to Entity Hashtable | 0x0004 | `uint32_t` | Slots in Entity Hashtable |
0x00B0 | `??` | Pointer to Ground Object (?) | 0x0008 | `void**` | Pointer to Entity Hashtable |
0x0288 | `pyEntity*` | UsrEntity[0] | 0x00B0 | `??` | Pointer to Ground Object (?) |
0x028C | `pyEntity*` | UsrEntity[1] | 0x0288 | `pyEntity*` | UsrEntity_0 |
0x0290 | `pyEntity*` | UsrEntity[2] | 0x028C | `pyEntity*` | UsrEntity_1 |
0x0294 | `pyEntity*` | UsrEntity[3] | 0x0290 | `pyEntity*` | UsrEntity_2 |
0x0298 | `uint32_t` | Slots in Model Hashtable | 0x0294 | `pyEntity*` | UsrEntity_3 |
0x029C | `void**` | Pointer to Model Hashtable | 0x0298 | `uint32_t` | Slots in Model Hashtable |
0x02B8 | `uint32_t` | Slots in Entity lists Hashtable | 0x029C | `void**` | Pointer to Model Hashtable |
0x02BC | `void**` | Pointer to Entity list Hashtable | 0x02B8 | `uint32_t` | Slots in Entity lists Hashtable |
0x0330 | `float[3]` | Time (why 3 times?) | 0x02BC | `void**` | Pointer to Entity list Hashtable |
0x1C6C | `float` | Alarm level | 0x0330 | `float[3]` | Time (why 3 times?) |
0x1C68 | `float` | Alarm Grow Level | 0x1C6C | `float` | Alarm level |
0x2158 | `float` | Used in `World_Init` | 0x1C68 | `float` | Alarm Grow Level |
0x2170 | `???` | Used in `World_Init` | 0x2158 | `float` | Used in `World_Init` |
0x2180 | `float` | Used in `World_Init` | 0x2170 | `???` | Used in `World_Init` |
0x2188 | `void*` | Used in `World_Init` | 0x2180 | `float` | Used in `World_Init` |
0x218C | `void*` | Used in `World_Init` | 0x2188 | `void*` | Used in `World_Init` |
0x2190 | `float` | Used in `World_Init` | 0x218C | `void*` | Used in `World_Init` |
0x2198 | `void*` | Used in `World_Init` | 0x2190 | `float` | Used in `World_Init` |
0x219C | `void*` | Used in `World_Init` | 0x2198 | `void*` | Used in `World_Init` |
0x21A0 | `void**` | Used in `World_Init` (VTable pointer?) | 0x219C | `void*` | Used in `World_Init` |
0x21B4 | `void**` | Used in `World_Init` (VTable pointer?) | 0x21A0 | `void**` | Used in `World_Init` (VTable pointer?) |
0x21C8 | `???` | Used in `World_Init` | 0x21B4 | `void**` | Used in `World_Init` (VTable pointer?) |
0x2204 | `uint32_t` or `uint16_t` | Used in `World_Init` | 0x21C8 | `???` | Used in `World_Init` |
0x2230 | `float` | Used in `World_Init` | 0x2204 | `uint32_t` or `uint16_t` | Used in `World_Init` |
0x2238 | `???` | Used in `World_Init` | 0x2230 | `float` | Used in `World_Init` |
0x2254 | `float` | Used in `World_Init` | 0x2238 | `???` | Used in `World_Init` |
| 0x2254 | `float` | Used in `World_Init` |
## cPyEntity structure ## cPyEntity structure
Offset | Type | Description Offset | Type | Description
------ | -------- | -------------------- ------ | -------- | --------------------
0x0000 | `void**` | Virtual Method Table 0x0000 | `void**` | Virtual Method Table
0x0004 | `char*` | Name 0x0004 | `char*` | Name
0x0008 | `void*` | ??? 0x0008 | `void*` | ???
## Entity Hash Table ## Entity Hash Table
@ -62,12 +68,12 @@ struct HT_Entry {
Data format: Data format:
Offset | Type | Description Offset | Type | Description
------ | ------------- | ------------------------ ------ | ------------- | ------------------------
0x0 | `void**` | Virtual Method Table (?) 0x0 | `void**` | Virtual Method Table (?)
0x4 | `const char*` | name as string 0x4 | `const char*` | name as string
0x14 | `void*` | pointer to self (why?) 0x14 | `void*` | pointer to self (why?)
0x28 | `float[3]` | Position in Game World 0x28 | `float[3]` | Position in Game World
## EntityList Hash Table ## EntityList Hash Table