From 003c02e2be3f8367489402d2c4edfa357fbf8cd9 Mon Sep 17 00:00:00 2001
From: alessamothdream <mothdreams666@gmail.com>
Date: Thu, 20 Aug 2026 22:55:05 -0700
Subject: [PATCH] add `MathUtil.h`

---
 src/cs4/Seimei/src/MathUtil.c |  1 +
 src/cs4/Seimei/src/MathUtil.h | 27 +++++++++++++++++++++++++++
 2 files changed, 28 insertions(+)
 create mode 100644 src/cs4/Seimei/src/MathUtil.h

diff --git a/src/cs4/Seimei/src/MathUtil.c b/src/cs4/Seimei/src/MathUtil.c
index 35bc6cb..d0fe49a 100644
--- a/src/cs4/Seimei/src/MathUtil.c
+++ b/src/cs4/Seimei/src/MathUtil.c
@@ -1,4 +1,5 @@
 #include "common.h"
+#include "MathUtil.h"
 
 #define REVOLUTIONS(angle) (TWO_PI * (int) ((PI + angle) / TWO_PI))
 
diff --git a/src/cs4/Seimei/src/MathUtil.h b/src/cs4/Seimei/src/MathUtil.h
new file mode 100644
index 0000000..5b3b75b
--- /dev/null
+++ b/src/cs4/Seimei/src/MathUtil.h
@@ -0,0 +1,27 @@
+#ifndef MATH_UTIL_H
+#define MATH_UTIL_H
+
+#include "typedefs.h"
+
+extern float V0[4];
+extern float V1[4];
+extern float VX[4];
+extern float VY[4];
+extern float VZ[4];
+extern float VW[4];
+extern float MRX1[4][4];
+
+float Math_GetPosToAngle(float* pos1, float* pos2);
+u_int Math_GotoVector2(float* now, float* end, float per, float min, float max);
+u_int Math_GotoVector(float* now, float* end, float add);
+u_int Math_GotoVectorXZ(float* now, float* end, float add);
+float Math_GetAngleDist(float ang1, float ang2);
+float Math_GetAngle360(float ang);
+float Math_GetDistXZ(float* v1, float* v2);
+float Math_GetDist2(float* v1, float* v2);
+float Math_GetDist(float* v1, float* v2);
+float Math_GotoAngle(float FromAngle, float ToAngle, float Rate);
+void Math_VectorToAngleXY(float* Ang, float* Vec);
+float Math_VectorToAngle(float xx, float zz);
+
+#endif // MATH_UTIL_H