add linear interpolation function

2022-07-19 20:39:34 +02:00 · 2022-07-19 20:39:34 +02:00 · d4cc9853cf
commit d4cc9853cf
parent b8e9ea816d
2 changed files with 7 additions and 0 deletions
--- a/utils.cpp
+++ b/utils.cpp
@ -84,6 +84,11 @@ void init(uint32_t prec)
 //    mpfr::mpreal::set_default_prec(prec);
 }

+double Util::linear_interpolate(double v0, double v1, float t)
+{
+    return (1 - t) * v0 + t * v1;
+}
+
 Vec2mp::Vec2mp(mpfr::mpreal x, mpfr::mpreal y)
               : x(x), y(y)
 {
--- a/utils.h
+++ b/utils.h
@ -195,6 +195,8 @@ public:

 void init(uint32_t prec);

+double linear_interpolate(double v0, double v1, float t);
+
 class Vec2mp {
 public:
    mpfr::mpreal x;