Ylands Tile - Custom instruction

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Ylands Tile - Custom instruction1.png

  • Custom instruction is a standalone sequence designed to perform a particular task and can be called from anywhere within the script of currently edited object.
  • Any instruction which does not return any value is called statement.
  • Any custom instruction consists of two parts - instruction definition and instruction call
  • Instruction definition
    • Defines parameters and contents of custom instruction.
    • It is standalone script block - does not snap with other blocks.
    • To create new custom instruction, simply place new block anywhere in the canvas.
    • Name and parameters of a instruction can be edited via context menu (right click on block).
    • Parameters work as local variables and can be used inside the custom instruction.
    • Custom instruction can be terminated at any point using return block.
  • Instruction call
    • Executes the custom instruction, with defined parameters.
    • Can be placed in any sequence as any other instruction.

Ylands Tile - Custom instruction2.png

  • Any Instruction which returns a value is called expression.
  • Expression definition work in same way as for statement instructions.
  • Instruction call has to be docked as input of another instruction as it would be a variable or literal.


  • Custom instructions of Global Storage are considered global and are available within the scope of whole game script.
  • Custom instructions of Entity Storage are considered member and are available within the scope of Storage Owner.
  • See also: Return