Graph

UNLang Graph could package a UNLang script to an isolated module and be reused by other scripts. It’s a high level reuse for UNLang to abstract UNLang script.

The key step user must do is connecting In and Out modules in UNLang script to define the input parameters and return values of the Graph.

Input Value

A Graph should define the input values, then UNLang could understand the Graph entrance and know how to connect with other module. Just like input parameters of function.

Use UNLang/Graph/In module.

Return Value

A Graph also could define the output result if it has.

Use UNLang/Graph/Out module.

Example

Let’s make a UNLang script to implement integer addition (a + b = c) feature of calculator.

Create add Graph

① Create “+” module

  • Use UNLang/Operator/+ module as follows.
    unlang-add
  • Set + module value type to Integer in the Inspector window.

② Connect “In” and “Out” module

  • Add UNLang/Graph/In and UNLang/Graph/Out modules.
  • Set In and Out module value type to Integer in the Inspector window.
  • Connect as follows.
    unlang-graph

③ Save to add.bytes

Use add Graph

  • Import add graph by clicking Graph... menu and choose add.bytes file.
  • Setup the script as follows: Two constant values and print to console.
  • Use Entry module as the beginning.
    unlang-usegraph

Summary

The Graph will hide all detail modules but only show In and Out pins of the script. So Graph is a good way to abstract a complex script and make it as a module to be reused by other script in UNLang.

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