diff core/Utilities.cpp @ 0:8a575ba3ab52

Initial commit.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/Utilities.cpp	Fri Oct 31 19:10:17 2014 +0100
@@ -0,0 +1,31 @@
+/*
+ * Utilities.cpp
+ *
+ *  Created on: Oct 27, 2014
+ *      Author: parallels
+ */
+
+#include "../include/Utilities.h"
+
+// map()
+//
+// Scale an input value from one range to another. Works like its Wiring language equivalent.
+// x is the value to scale; in_min and in_max are the input range; out_min and out_max
+// are the output range.
+
+float map(float x, float in_min, float in_max, float out_min, float out_max)
+{
+	return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
+}
+
+// constrain()
+//
+// Clips an input value to be between two end points
+// x is the value to constrain; min_val and max_val are the range
+
+float constrain(float x, float min_val, float max_val)
+{
+	if(x < min_val) return min_val;
+	if(x > max_val) return max_val;
+	return x;
+}