Add knob controller.

diff --git a/src/main/java/net/pterodactylus/sonitus/data/controller/Knob.java b/src/main/java/net/pterodactylus/sonitus/data/controller/Knob.java
new file mode 100644 (file)
index 0000000..7b100a9
--- /dev/null
+++ b/src/main/java/net/pterodactylus/sonitus/data/controller/Knob.java
@@ -0,0 +1,50 @@
+/*
+ * Sonitus - Knob.java - Copyright © 2013 David Roden
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.sonitus.data.controller;
+
+/**
+ * A know is a controller that usually starts out in a center position and can
+ * be de- or increased from there.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class Knob extends AbstractController<Double> {
+
+       /**
+        * Creates a new knob with the given name.
+        *
+        * @param name
+        *              The name of the knob
+        */
+       public Knob(String name) {
+               this(name, 0.0);
+       }
+
+       /**
+        * Creates a new knob with the given name and value.
+        *
+        * @param name
+        *              The name of the knob
+        * @param currentValue
+        *              The current value of the knob
+        */
+       public Knob(String name, double currentValue) {
+               super(name, -1.0, 1.0, true, currentValue);
+       }
+
+}