From 22c772620e00d02bcd409e2ddb03d762c545cbdd Mon Sep 17 00:00:00 2001
From: "Laetitia (O-01-67)" <68935009+O-01-67@users.noreply.github.com>
Date: Sun, 29 Jan 2023 17:07:26 -0500
Subject: [PATCH] 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
---
 mods/maxColorOffset | 47 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 mods/maxColorOffset

diff --git a/mods/maxColorOffset b/mods/maxColorOffset
new file mode 100644
index 00000000..70925382
--- /dev/null
+++ b/mods/maxColorOffset
@@ -0,0 +1,47 @@
+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;
+}