1 files changed, 46 insertions, 0 deletions

diff --git a/assets/js/colors.js b/assets/js/colors.js
new file mode 100644
index 0000000..d06861a
--- /dev/null
+++ b/assets/js/colors.js
@@ -0,0 +1,46 @@
+/* adapted from https://git.šijanec.eu/siska/beziapp-sam-lepo */
+
+function linMap(c, mn, mx) {
+	return c*(mx-mn)+mn;
+}
+function getDecimal(n) {
+	return (n-Math.floor(n));
+}
+function mapColorPalete(c, palete) {
+	let poz = c*(palete.length-1);
+	let col1 = palete[Math.floor(poz)]; /* https://git.šijanec.eu/siska/beziapp-sam-lepo */
+	let col2 = palete[Math.ceil(poz)]; /* made by siska */
+    return (Math.floor(linMap(getDecimal(poz),col1[0],col2[0])).toString(16).padStart(2,0)+ 
+	                Math.floor(linMap(getDecimal(poz),col1[1],col2[1])).toString(16).padStart(2,0)+
+	                Math.floor(linMap(getDecimal(poz),col1[2],col2[2])).toString(16).padStart(2,0)).toUpperCase();
+}
+/**
+ *
+ * Convert last 3 bytes of an integer to RGB color
+ * @param {integer} input_integer Integer that will be converted to RGB color
+ * @returns {string} Hex color code
+ *
+ */
+function intToRGB(i, palete = null) {
+	if (palete == null) {
+    var c = (i & 0x00FFFFFF)
+        .toString(16)
+        .toUpperCase();
+
+    return "00000".substring(0, 6 - c.length) + c;
+	} else return mapColorPalete((i & 0xFF) / 0xFF, palete);
+}
+
+
+/**
+ *
+ * Convert a given string to hex color
+ * @param {string} input_string Input string
+ * @returns {string} Hex RGB color
+ */
+function getHexColorFromString(str) {
+	if (urnikTheme == "privzeta")
+		return "#" + intToRGB(hashCode(str));
+	else
+		return "#" + intToRGB(hashCode(str), [[38, 70, 83], [42, 157, 143], [233, 196, 106], [244, 162, 97], [231, 111, 81]]);
+}