From 63f264ad6f8ac27a5074e0a65696b0f3e976f1ce Mon Sep 17 00:00:00 2001
From: Yotam Mann <yotammann@gmail.com>
Date: Wed, 2 Jul 2014 23:37:19 -0400
Subject: [PATCH] compare a signal to a number

---
 Tone/signal/Equal.js | 58 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 Tone/signal/Equal.js

diff --git a/Tone/signal/Equal.js b/Tone/signal/Equal.js
new file mode 100644
index 00000000..93fd0c5c
--- /dev/null
+++ b/Tone/signal/Equal.js
@@ -0,0 +1,58 @@
+define(["Tone/core/Tone", "Tone/signal/EqualZero", "Tone/signal/Add"], function(Tone){
+
+	/**
+	 *  Output 1 if the signal is equal to the value, otherwise outputs 0
+	 *  
+	 *  @constructor
+	 *  @extends {Tone}
+	 *  @param {number} value the number to compare the incoming signal to
+	 */
+	Tone.Equal = function(value){
+
+		/**
+		 *  subtract the value from the incoming signal
+		 *  
+		 *  @type {Tone.Add}
+		 *  @private
+		 */
+		this._adder = new Tone.Add(-value);
+		/**
+		 *  @type {Tone.EqualZero}
+		 *  @private
+		 */
+		this._equals = new Tone.EqualZero();
+
+		/**
+		 *  @type {Tone.Add}
+		 */
+		this.input = this._adder;
+
+		/**
+		 *  @type {Tone.EqualZero}
+		 */
+		this.output = this._equals;
+
+		this._adder.connect(this._equals);
+	};
+
+	Tone.extend(Tone.Equal);
+
+	/**
+	 * 	@param {number} value set the comparison value
+	 */
+	Tone.Equal.prototype.setValue = function(value){
+		this._adder.setValue(-value);
+	};
+
+	/**
+	 *  dispose method
+	 */
+	Tone.Equal.prototype.dispose = function(){
+		this._equals.disconnect();
+		this._adder.dispose();
+		this._equals = null;
+		this._adder = null;
+	};
+
+	return Tone.Equal;
+});
\ No newline at end of file