NodeScript

NodeScript is a rudimentary programming language designed to function on 'nodes', intended for use in puzzle games.

Nodes

Input nodes will continuously attempt to send the next line. It has only one output.
Regular nodes can take in one string at a time, process it and send it to a set number of outputs. Each node can store a single string in mem. mem is the only variable which will persist between executions.
Combiner nodes can merge multiple inputs into one output. It offers no options to choose which string goes through first, picking whatever comes first.
Output nodes will consume the lines sent to it, storing it in a string.

Features

Basic arithmetic and boolean logic
Variables - All variables are global in scope
Indexing
- Element_of: v[i]
- Slice: v[i:j]
Basic control flow (if-else)
Native functions for things like:
- String manipulation
- Data conversion and parsing
Dynamic typing between:
- string
- string[]
- int
- bool

Notably, there are NO loops within the scripting itself. No while. No for.
Execution will occur line by line and will only start when a node receives an input string to be processed.

Syntax

Every line contains a single statement. All statements will start with a relevant keyword for the operation.
- SET: Sets a variable to a certain value. Variables do not need to be declared. Syntax: SET <variable_name>, <expression>
- PRINT: Sends a string to a specific output node, denoted by an index. Syntax: PRINT <output_idx>, <expression>
- RETURN: Ends the program (until the next input comes). Syntax: RETURN
- IF: Executes the following code if the given expression is true. Syntax IF <expression>
- ELSE: Executes the following code if the previous if statement was false. Syntax ELSE
- ENDIF: Marks the end of the IF clause. Either ends the IF code section or the ELSE code section. Only one is needed per IF/ELSE statement. Syntax ENDIF
- NOP: Does nothing. Helpful for synchronizing the timing of multiple nodes. Syntax NOP

Tags: language gamedev

Last modified 16 December 2024

NodeScript

A language intended for use in puzzle games.

Nodes

Features

Syntax