text stringlengths 0 275 |
|---|
**Color palette (COLOR command, 0–15):** 0=Black, 1=Blue, 2=Green, 3=Cyan, 4=Red, 5=Magenta, 6=Brown, 7=Lt Gray, 8=Dk Gray, 9=Lt Blue, 10=Lt Green, 11=Lt Cyan, 12=Lt Red, 13=Lt Magenta, 14=Yellow, 15=White |
### Screen Control |
```basic |
SCREENLOCK ON ' Buffer drawing (start frame) |
SCREENLOCK OFF ' Present buffer (end frame) |
VSYNC(TRUE) ' Enable VSync (default, ~60 FPS) |
VSYNC(FALSE) ' Disable VSync (benchmarking) |
CLS ' Clear screen (slow — prefer LINE BF) |
``` |
### Shapes & Images |
```basic |
' Create shape |
LET id$ = LOADSHAPE("RECTANGLE", w, h, color) ' or "CIRCLE", "TRIANGLE" |
LET img$ = LOADIMAGE("player.png") ' PNG (alpha) or BMP |
LET img$ = LOADIMAGE("https://example.com/a.png") ' Download + load |
' Sprite sheet — sprites indexed 1-based |
DIM sprites$ |
LOADSHEET sprites$, 128, 128, "sheet.png" ' tileW, tileH, file |
MOVESHAPE sprites$(1), x, y ' sprites$(1) = first sprite |
' Transform |
MOVESHAPE id$, x, y ' Position by center point |
ROTATESHAPE id$, angle ' Degrees (absolute) |
SCALESHAPE id$, scale ' 1.0 = original size |
DRAWSHAPE id$ ' Render to buffer |
SHOWSHAPE id$ / HIDESHAPE id$ ' Toggle visibility |
REMOVESHAPE id$ ' Free memory (always clean up) |
``` |
--- |
## Sound |
```basic |
LET snd$ = LOADSOUND("jump.wav") ' Load (WAV recommended) |
SOUNDONCE(snd$) ' Play once, non-blocking |
SOUNDONCEWAIT(snd$) ' Play once, wait for finish |
SOUNDREPEAT(snd$) ' Loop continuously |
SOUNDSTOP(snd$) ' Stop specific sound |
SOUNDSTOPALL ' Stop all sounds |
``` |
Load all sounds at startup. Call `SOUNDSTOPALL` before `END`. |
--- |
## File I/O |
```basic |
LET data$ = FileRead("file.txt") ' Read as string |
DIM cfg$ : LET cfg$ = FileRead("settings.txt") ' Read as key=value array |
FileWrite "save.txt", data$ ' Create/overwrite |
FileAppend "log.txt", entry$ ' Append |
LET ok$ = FileExists("file.txt") ' 1=exists, 0=not |
FileDelete "temp.dat" ' Delete file |
``` |
**key=value parsing:** When `FileRead` assigns to a `DIM`'d array, lines `key=value` become `arr$("key")`. Lines starting with `#` are comments. Perfect for `.env` files. |
```basic |
DIM env$ |
LET env$ = FileRead(".env") |
LET API_KEY# = env$("OPENAI_API_KEY") |
``` |
**Paths:** Use `/` or `\\` — never single `\` (it's an escape char). Relative paths are from `ROOT#`. |
**FileWrite with array** saves in key=value format (round-trips with FileRead). |
--- |
## Network |
```basic |
LET res$ = HTTPGET("https://api.example.com/data") |
LET res$ = HTTPPOST("https://api.example.com/submit", "{""key"":""val""}") |
' With headers (optional last parameter) |
DIM headers$ |
headers$("Authorization") = "Bearer mytoken" |
headers$("Content-Type") = "application/json" |
LET res$ = HTTPGET("https://api.example.com/data", headers$) |
LET res$ = HTTPPOST("https://api.example.com/data", body$, headers$) |
``` |
--- |
## Arrays & JSON |
Nested JSON maps to comma-separated keys: `data$("player,name")`, `data$("skills,0")` |
```basic |
' Array → JSON string |
LET json$ = ASJSON(arr$) |
' JSON string → array (returns element count) |
DIM data$ |
LET count$ = ASARRAY(data$, json$) |
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