neg.md

weight	draft	title
1	false	neg(q, value)

Returns a new quadrille by clearing q quadrille filled cells, and filling its empty cells with value (any data type instance but undefined).

Example

(click on the canvas and press any key)

{{< p5-global-iframe quadrille="true" width="325" height="265" >}} 'use strict'; Quadrille.cellLength = 60; let q; let west;

function setup() { createCanvas(300, 240); q = createQuadrille(5, 4, 8, '🌏'); }

function draw() { background('purple'); drawQuadrille(q); }

function mouseClicked() { west = !west; q = Quadrille.neg(q, west ? '🌎' : '🌏'); } {{< /p5-global-iframe >}}

{{< details title="code" open=false >}}

Quadrille.cellLength = 60;
let q;
let west;

function setup() {
  createCanvas(300, 240);
  q = createQuadrille(5, 4, 8, '🌏');
}

function draw() {
  background('purple');
  drawQuadrille(q);
}

function keyPressed() {
  west = !west;
  q = Quadrille.neg(q, west ? '🌎' : '🌏');
}

{{< /details >}}

Syntax

Quadrille.neg(quadrille, value)

Parameters

Param	Description
q	Quadrille: the quadrille to negate (clear filled cells and fill empty cells)
value	Any: the value used to fill empty cells