medfall

commit 40aa75756231db90e95a1d0981a1e41ccd498f3e
parent 6cbdbf980b88131bf236b8125b7691597c37b09b
Author: Michael Savage <mikejsavage@gmail.com>
Date:   Tue, 28 May 2019 16:43:51 +0300

unlerp

Diffstat:
M
intrinsics.h
 | 
5
+++++

1 file changed, 5 insertions(+), 0 deletions(-)
diff --git a/intrinsics.h b/intrinsics.h
@@ -244,6 +244,11 @@ static T lerp( T a, float t, T b ) {
 	return a * ( 1.0f - t ) + b * t;
 }
 
+template< typename T >
+static T unlerp( T lo, T x, T hi ) {
+	return ( x - lo ) / ( hi - lo );
+}
+
 /*
  * these are meant to be used for breaking deep in leaf code on keypresses etc
  * defined in breakbools.cc