f_op_actor_mng split & started decomp (#112)

* fop-actor-mng

* rodata

* more actor mng progress

* actor mng progress

* format

* cleanup

* fix Mtx function signatures

* PR suggestion

Co-authored-by: Pheenoh <pheenoh@gmail.com>

include/JSystem/J3DUClipper.h

@@ -0,0 +1,32 @@
+#ifndef JSYSTEM_J3DUCLIPPER_H_
+#define JSYSTEM_J3DUCLIPPER_H_
+
+#include "dolphin/types.h"
+#include "mtx_vec.h"
+
+class J3DUClipper {
+private:
+    void* vtable;
+    Vec _4;
+    Vec _10;
+    Vec _1C;
+    Vec _28;
+    u8 _34[0x4C - 0x34];
+    f32 mFovY;
+    f32 mAspect;
+    f32 mNear;
+    f32 mFar;
+
+public:
+    u32 clip(const Mtx, Vec*, f32) const;
+    u32 clip(const Mtx, Vec*, Vec*) const;
+};
+
+extern J3DUClipper lbl_803DD8E4;
+
+extern "C" {
+u32 J3DUClipper_NS_clip(const J3DUClipper*, const Mtx, Vec*, f32);
+u32 J3DUClipper_NS_clip_X1_(const J3DUClipper*, const Mtx, Vec*, Vec*);
+}
+
+#endif

include/JSystem/JMath/JMath.h

@@ -0,0 +1,21 @@
+#ifndef JSYSTEM_JMATH_H_
+#define JSYSTEM_JMATH_H_
+
+#include "dolphin/types.h"
+
+struct sinCosTableEntry {
+    f32 sin;
+    f32 cos;
+};
+
+extern sinCosTableEntry lbl_80439A20[0x2000];  // JMath::JMath::sincosTable_
+
+inline f32 cM_scos(s16 s) {
+    return lbl_80439A20[static_cast<u16>(s) >> 3].cos;
+}
+
+inline f32 cM_ssin(s16 s) {
+    return lbl_80439A20[static_cast<u16>(s) >> 3].sin;
+}
+
+#endif