Start on some math utilities

.gitignore

@@ -1,9 +0,0 @@
-*.o
-*.vscode
-
-# IDA Files
-*.id0
-*.id1
-*.id2
-*.nam
-*.til

include/al/util/MathUtil.h

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+namespace al
+{
+    float normalize(signed int, signed int, signed int);
+};

source/al/util/MathUtil.cpp

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+#include <MathUtil.h>
+
+float normalize(signed int var, signed int min, signed int max)
+{
+  signed int v3;
+  float result;
+
+  if ( var <= min )
+    return 0.0;
+  if ( max - min <= 0 )
+  {
+    result = 1.0;
+    if ( var < min )
+      result = 0.0;
+  }
+  else
+  {
+    if ( var <= max )
+      v3 = var;
+    else
+      v3 = max;
+    if ( var < min )
+      v3 = min;
+    result = (v3 - min) / (max - min);
+  }
+  return result;
+}