enuiskov / sienna

Visual representation of systems and data structures, an example of a stack-based programming language.

Sienna

N-gon scheme editor

Command	Function
[LeftMouse]	Create, paste, select, drag objects
[RightMouse]	Pan view, toggle menu, select menu item
[MiddleMouse]	Incline viewpoint, 'arc rotate' in the perspective mode
[MouseWheel]	Zoom in/out
[Ctrl]	Hold to select multiple objects
[Delete]	Delete selected objects
[Backspace]	Delete last created node
[Space]	Update node information and line connections
[H]	Hold to draw lines with the arc helper
[U],[I],[O]	Set port type: Undefined, Input, Output
[Q]/[W]	Change polygon type
[A]/[S], [Alt]+[Wheel]	Change color
[Z]/[X], [Shift]+[Wheel]	Rotate object
[=]/[-], [Ctrl]+[Wheel]	Scale object
[Ctrl]+[C]	Copy selected nodes
[Ctrl]+[V]	Paste selected nodes
[Ctrl]+[O]	Load scheme from current slot
[Ctrl]+[S]	Save scheme to current slot ('Num0' by default)
[NumPad0..9]	Load scheme from specified slot
[Ctrl]+[NumPad0..9]	Save scheme to specified slot
[F11]	Toggle gradient mode
[F12]	Toggle perspective/orthographic view
[Alt]+[F12]	Toggle volume rendering mode (perspective view)

Use console commands to set names, descriptions, and behaviours of selected nodes

Command	Function
nn NewName	Set node name
nt I[K]	Set node type
nd New description\r\ngoes here	Set node description

Only ~I[KeyCode] input node types are currently supported.

More screenshots

Code editor

Most keys and keyboard shortcuts work just like they do in any text editor on the Windows platform, with these additions:

Command	Function
[RightMouse]	Hold to scroll document
[F4]	Reset interpreter
[F5]	Continue
[F10]	Step over
[F11]	Step into
[Shift]+[F11]	Step out
[F12]	Toggle hexadecimal numbers
[Alt]+[F12]	Toggle syntax tokens
[ScrollLock]	Toggle execution
[CapsLock]	Toggle skipping breakpoints
[Ctrl]+[Shift]+[C]	Comment selection
[Ctrl]+[Shift]+[X]	Uncomment selection
[Ctrl]+[S]	Save file
[F9]	Toggle light/dark theme

Continuous execution is active as long as ScrollLock and CapsLock are active, and there must be at least one !!!-breakpoint in the executable code. Missing breakpoint causes hanging of execution because the interpreter updates the screen every time a breakpoint is hit.

Note that the supported programming language is stack-oriented. The key feature is the order of execution of various syntax nodes: expressions are executed in direct order, lists - in reverse, and finally list-items are executed in direct order again. Atoms are only supported by the lexer and syntax parser.

Miscellaneous controls (GL)

Command	Function
[Ctrl]+[~] / [Escape]	Toggle console
[Alt]+[E/D],[R/F]	Toggle graphics blending modes
[Alt]+[Enter]	Toggle fullscreen mode
[F9]	Toggle light/dark theme
[Alt]+[=/-]	Adjust gamma correction