External links
GitHub organization
Engine source code
Website source code
Downloads
Engine
Required files
Linux x86 64-bit
Linux x86 32-bit
Windows x86
Xbox (NXDK)
Dedicated server
Required files
Linux x86 64-bit
Windows x86
Editor
Required files
Linux x86 64-bit
Windows x86
Tools
Platform agnostic
Linux x86 64-bit
Windows x86
Documentation
Editor PBASIC
The BASICs
Reference
Engine File formats
P3M
PTF
PTM
Other
Online demo
Propaganda
News
PTF
Format
- Current version is
0.0 - File extension is
.ptf - Data is little endian
- LZ4 is used for compression
| Type | Description |
|---|---|
"Header" | File header |
"Data" | Image data |
Header
| Type | Value | Description |
|---|---|---|
char[3] | {'P', 'T', 'F'} | Header magic |
u8 | 0 | Major version |
u8 | Header info byte | Flags and resolution |
Header info byte
| Bit (Listed from LSB to MSB) | Value | Description |
|---|---|---|
| 1-4 | – | Resolution |
| 5 | – | Has alpha |
| 6-8 | 0 | Reserved |
Data
| Type | Description |
|---|---|
Compressed {"RGB pixel"|"RGBA pixel"}[0...] | Compressed pixels |
RGB pixel
| Type | Description |
|---|---|
u8[3] | RGB |
RGBA pixel
| Type | Description |
|---|---|
u8[4] | RGBA |