From e92ad9f4b19a0670a80cdd293970c3a08c27a8b4 Mon Sep 17 00:00:00 2001
From: Brian Cully <bjc@kublai.com>
Date: Sun, 3 Jan 2021 18:34:19 -0500
Subject: Initial commit.

---
 genome.mjs | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 genome.mjs

(limited to 'genome.mjs')

diff --git a/genome.mjs b/genome.mjs
new file mode 100644
index 0000000..fcab4ff
--- /dev/null
+++ b/genome.mjs
@@ -0,0 +1,80 @@
+import Nucleotide from './nucleotide.mjs'
+import Die from './die.mjs'
+import { randomItem } from './utils.mjs'
+
+class Genome {
+    static *randomBase() {
+	for (const i of [...Array(Genome.size)]) {
+            yield randomItem(Nucleotide.bases)
+        }
+    }
+
+    constructor(gen) {
+        const nucleotideList = document.createElement('ol')
+        this._boundNucleotideClickedHandler =
+            this.nucleotideClickedHandler.bind(this)
+        this.nucleotides = [...gen].map(base => {
+            const n = new Nucleotide(base)
+            n.onClick = this._boundNucleotideClickedHandler
+            nucleotideList.appendChild(n.elt)
+            return n
+        })
+        this.elt.appendChild(nucleotideList)
+        this.lock()
+    }
+
+    get elt() {
+        if (this._elt === undefined) {
+            this._elt = document.createElement('li')
+            this._elt.classList.add('genome')
+        }
+        return this._elt
+    }
+
+    get onSelectionChanged() {
+        if (this._onSelectionChanged !== undefined) {
+            return this._onSelectionChanged
+        }
+        return () => {}
+    }
+
+    set onSelectionChanged(fn) {
+        this._onSelectionChanged = fn
+    }
+
+    lock() {
+        this.elt.classList.add('locked')
+        this.nucleotides.forEach(n => n.lock())
+    }
+
+    unlock() {
+        this.elt.classList.remove('locked')
+        this.nucleotides.forEach(n => n.unlock())
+    }
+
+    clone() {
+        return new Genome(this.nucleotides.map(n => n.value))
+    }
+
+    get selectedNucleotide() {
+	return this._selectedNucleotide
+    }
+
+    set selectedNucleotide(nucleotide) {
+	if (this.selectedNucleotide !== undefined) {
+	    this.selectedNucleotide.deselect()
+	}
+	this._selectedNucleotide = nucleotide
+	this._selectedNucleotide.select()
+
+	const i = this.nucleotides.indexOf(this._selectedNucleotide)
+	this.onSelectionChanged(this._selectedNucleotide, i)
+    }
+
+    nucleotideClickedHandler(nucleotide) {
+	this.selectedNucleotide = nucleotide
+    }
+}
+Genome.size = 18
+
+export default Genome
-- 
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