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-rw-r--r--src/libjin/Math/je_math.h77
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diff --git a/src/libjin/Math/je_math.h b/src/libjin/Math/je_math.h
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+#ifndef __LIBJIN_UTILS_MATH_H
+#define __LIBJIN_UTILS_MATH_H
+
+#include "je_constant.h"
+#include "je_matrix.h"
+#include "je_quad.h"
+
+namespace jin
+{
+ namespace math
+ {
+
+ #ifdef min
+ # undef min
+ #endif // min
+ #ifdef max
+ # undef max
+ #endif // max
+
+ template<typename T>
+ inline T min(T a, T b)
+ {
+ return a < b ? a : b;
+ }
+
+ template<typename T>
+ inline T max(T a, T b)
+ {
+ return a > b ? a : b;
+ }
+
+ template<typename T>
+ inline T clamp(T a, T mi, T ma)
+ {
+ return min<T>(max<T>(a, mi), ma);
+ }
+
+ template<typename T>
+ inline bool within(T a, T mi, T ma)
+ {
+ return a >= mi && a <= ma;
+ }
+
+ template<typename T>
+ inline bool without(T a, T mi, T ma)
+ {
+ return a < mi || a > ma;
+ }
+
+ template<typename T>
+ inline T abs(T a)
+ {
+ return a > 0 ? a : -a;
+ }
+
+ template<typename T>
+ inline T lowerBound(T a, T lower)
+ {
+ return a < lower ? lower : a;
+ }
+
+ template<typename T>
+ inline T upperBound(T a, T upper)
+ {
+ return a > upper ? upper : a;
+ }
+
+ template<typename T>
+ inline T lerp(T a, T b, float t)
+ {
+ return a + t * (b - a);
+ }
+
+ } // namespace math
+} // namespace jin
+
+#endif \ No newline at end of file