diff options
Diffstat (limited to 'sp/src/mathlib/halton.cpp')
| -rw-r--r-- | sp/src/mathlib/halton.cpp | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/sp/src/mathlib/halton.cpp b/sp/src/mathlib/halton.cpp new file mode 100644 index 00000000..d0c56325 --- /dev/null +++ b/sp/src/mathlib/halton.cpp @@ -0,0 +1,30 @@ +//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose:
+//
+//=====================================================================================//
+
+#include <halton.h>
+
+HaltonSequenceGenerator_t::HaltonSequenceGenerator_t(int b)
+{
+ base=b;
+ fbase=(float) b;
+ seed=1;
+
+}
+
+float HaltonSequenceGenerator_t::GetElement(int elem)
+{
+ int tmpseed=seed;
+ float ret=0.0;
+ float base_inv=1.0/fbase;
+ while(tmpseed)
+ {
+ int dig=tmpseed % base;
+ ret+=((float) dig)*base_inv;
+ base_inv/=fbase;
+ tmpseed/=base;
+ }
+ return ret;
+}
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