1 files changed, 23 insertions, 0 deletions
diff --git a/src/misc.c b/src/misc.c
new file mode 100644
index 0000000..a01a70d
--- /dev/null
+++ b/src/misc.c
@@ -0,0 +1,23 @@
+#include "misc.h"
+
+double linearConversion(double min_from, double max_from, double value,
+                        double min_to, double max_to, bool clip) {
+    // prevent division by zero
+    if (max_from == min_from) {
+        return min_to;
+    }
+
+    // main formula
+    double result = min_to + (value - min_from) * (max_to - min_to) / (max_from - min_from);
+
+    // check clipping
+    if (clip) {
+        if (result < min_to) {
+            result = min_to;
+        } else if (result > max_to) {
+            result = max_to;
+        }
+    }
+
+    return result;
+}