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Logic

Intro​

Perform simple logic operations (AND, OR, XOR) on boolean (on/off) values.

UI​

First - Set the first boolean to be used in the operation. When using input connections, a value less than 0.5 is considered false and a value greater than or equal to 0.5 is true.

Operation - Determine the logical operation:

  • AND (both) - The Result is true if First and Second are both true.
  • OR (one or both) - The Result is true if First and/or Second are true.
  • XOR (one but not both) - The Result is true if either First or Second is true but not if both are true.

Second - Set the second boolean to be used in the operation. When using input connections, a value less than 0.5 is considered false and a value greater than or equal to 0.5 is true.

Result - A read only preview of the output. The Logic Utility will output a value of 1 when the result is true and a value of 0 when the result is false.

Example
  1. Create an Ellipse.
  2. Create two Comparison Utilities.
  3. Set Second to 0 for both.
  4. Connect ellipse.position.x→comparison1.first.
  5. Connect ellipse.position.y→comparison2.first.
  6. Create a Logic Utility.
  7. Connect comparison1.id→logic.first.
  8. Connect comparison2.id→logic.second.
  9. Create a Color Array.
  10. Using the +Add button add a second index to the Color Array and set a different color.
  11. Connect logic.id→colorArray.index.
  12. Connect colorArray.id→ellipse.fill.color.

Using the Select tool, move the Ellipse around the Viewport. When the Ellipse is positioned in the bottom left quadrant of the Viewport it will change color because;

  • Its position in both X and Y is less than 0 which means both Comparisons return true.
  • This means the Logic also returns true.
  • Which sets the Color Array's Index to 1.