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Set maximum random color offset (sand effect) 

maxColorOffset (integer): Maximum distance (in both directions) by which a color can be lightened/darkened (out of 255) by pixelColorPick

Effective default value is 15
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Laetitia (O-01-67) 2023-01-29 17:07:26 -05:00 committed by GitHub
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pixelColorPick = function(pixel,customColor=null,maxOffset=null) {
var element = pixel.element;
var elementInfo = elements[element];
//if (elementInfo.behavior instanceof Array) {
if (pixel.charge && elementInfo.colorOn) {
customColor = elementInfo.colorOn;
}
if (customColor != null) {
if (Array.isArray(customColor)) {
customColor = customColor[Math.floor(Math.random() * customColor.length)];
}
if (customColor.startsWith("#")) {
customColor = hexToRGB(customColor);
}
var rgb = customColor;
}
else {
var rgb = elements[element].colorObject; // {r, g, b}
// If rgb is an array, choose a random item
if (Array.isArray(rgb)) {
rgb = rgb[Math.floor(Math.random() * rgb.length)];
}
}
// Randomly darken or lighten the RGB color
//try maxOffset parameter, then info maxColorOffset, then default 15
var offsetAmount = (maxOffset == null ? (elementInfo.maxColorOffset == undefined ? 15 : elementInfo.maxColorOffset) : maxOffset);
var maxColorOffset = Math.floor(Math.random() * (Math.random() > 0.5 ? -1 : 1) * Math.random() * offsetAmount);
var r = rgb.r + maxColorOffset;
var g = rgb.g + maxColorOffset;
var b = rgb.b + maxColorOffset;
// Make sure the color is within the RGB range
r = Math.max(0, Math.min(255, r));
g = Math.max(0, Math.min(255, g));
b = Math.max(0, Math.min(255, b));
var color = "rgb("+r+","+g+","+b+")";
/*}
else {
var color = elementInfo.color;
if (Array.isArray(color)) {
color = color[Math.floor(Math.random() * color.length)];
}
}*/
return color;
}