Merge branch 'master' of https://github.com/podgorskiy/imgui into podgorskiy-master
diff --git a/imgui.cpp b/imgui.cpp
index 7f5049a..5d4c87c 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -951,14 +951,13 @@
{
ImVec2 ap = p - a;
ImVec2 ab_dir = b - a;
- float ab_len = sqrtf(ab_dir.x * ab_dir.x + ab_dir.y * ab_dir.y);
- ab_dir *= 1.0f / ab_len;
float dot = ap.x * ab_dir.x + ap.y * ab_dir.y;
if (dot < 0.0f)
return a;
- if (dot > ab_len)
+ float ab_len_sqr = ab_dir.x * ab_dir.x + ab_dir.y * ab_dir.y;
+ if (dot > ab_len_sqr)
return b;
- return a + ab_dir * dot;
+ return a + ab_dir * dot / ab_len_sqr;
}
bool ImTriangleContainsPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& p)
