1 files changed, 29 insertions, 3 deletions

diff --git a/index.js b/index.js
index e0ab620..193d5bb 100644
--- a/index.js
+++ b/index.js
@@ -1,12 +1,22 @@
 export default class RandomAvatars {
-    constructor(string, hashcount=11, ignoreext=true) {
+    constructor(string, hashcount = 11, ignoreext = true) {
         /**
          * This creates our avatar.
          * Takes in a string and makes an picture out of it.
          */
-        if (ignoreext) removeExts(this, string);
+        let string = string;
+        if (ignoreext) string = removeExts(this, string);
 
-        this.format = 'png'
+        this.hexdigest = crypto.createHash('sha512').update(string).digest('hex');
+        this.hasharray = [];
+        // Start this at 4, so earlier is reserved
+        // 0 = Color
+        // 1 = Set
+        // 2 = bgset
+        // 3 = BG
+        this.iter = 4;
+        createhashes(this, hashcount);
+        this.format = 'png';
     }
 }
 
@@ -28,3 +38,19 @@ function removeExts(currentClass, string) {
     }
     return input;
 }
+
+function createhashes(currentClass, count) {
+    /**
+     * Breaks up our hash into slots, so we can pull them out later.
+     * Essentially, it splits our SHA/MD5/etc into X parts.
+     */
+
+    for (const i of Array(count).keys()) {
+        // Get 1/numblocks of the hash
+        const blocksize = parseInt(currentClass.hexdigest.length/count);
+        const currentStart = ((i + 1) * blocksize) - blocksize;
+        const currentEnd = (1 +i) * blocksize;
+        currentClass.hasharray.push(parseInt(currentClass.hexdigest.substr(currentStart, currentEnd), 16));
+    }
+    currentClass.hasharray = currentClass.hasharray + currentClass.hasharray
+}