Use composition instead of inheritance for most f_op classes (#2700)

include/JSystem/JKernel/JKRThread.h

@@ -20,7 +20,7 @@ class JUTConsole;
  * @ingroup jsystem-jkernel
  * 
  */
-class JKRThread : JKRDisposer {
+class JKRThread : public JKRDisposer {
 public:
     class TLoad {
     public:

include/c/c_damagereaction.h

@@ -3,7 +3,7 @@
 
 #include "JSystem/JParticle/JPAParticle.h"
 
-class JPTraceParticleCallBack4 : JPAParticleCallBack {
+class JPTraceParticleCallBack4 : public JPAParticleCallBack {
 public:
     /* 8001817C */ void execute(JPABaseEmitter*, JPABaseParticle*);
     /* 800182A4 */ void draw(JPABaseEmitter*, JPABaseParticle*);

include/f_op/f_op_actor.h

@@ -233,8 +233,9 @@ struct cull_box {
     /* 0xC */ Vec max;
 };
 
-class fopAc_ac_c : public leafdraw_class {
+class fopAc_ac_c {
 public:
+    /* 0x000 */ leafdraw_class base;
     /* 0x0C0 */ int actor_type;
     /* 0x0C4 */ create_tag_class actor_tag;
     /* 0x0D8 */ create_tag_class draw_tag;

include/f_op/f_op_actor_mng.h

@@ -91,7 +91,7 @@ struct fOpAcm_HIO_entry_c : public mDoHIO_entry_c {
 
     #ifdef DEBUG
     void removeHIO(const fopAc_ac_c* i_this) { removeHIO(*i_this); }
-    void removeHIO(const fopAc_ac_c& i_this) { removeHIO(static_cast<const leafdraw_class&>(i_this)); }
+    void removeHIO(const fopAc_ac_c& i_this) { removeHIO(i_this.base); }
     void removeHIO(const leafdraw_class& i_this) { removeHIO(i_this.base); }
     void removeHIO(const base_process_class& i_this) { removeHIO(i_this.state); }
     void removeHIO(const state_class& state) {

include/f_op/f_op_kankyo.h

@@ -4,8 +4,8 @@
 #include "SSystem/SComponent/c_xyz.h"
 #include "f_pc/f_pc_leaf.h"
 
-class kankyo_class : public leafdraw_class {
-public:
+struct kankyo_class {
+    /* 0x00 */ leafdraw_class base;
     /* 0xC0 */ int type;
     /* 0xC4 */ create_tag_class draw_tag;
     /* 0xD8 */ leafdraw_method_class* sub_method;

include/f_op/f_op_msg.h

@@ -22,8 +22,8 @@ enum fopMsg_Mode_e {
 
 class fopAc_ac_c;
 
-class msg_class : public leafdraw_class {
-public:
+struct msg_class {
+    /* 0x00 */ leafdraw_class base;
     /* 0xC0 */ int type;
     /* 0xC4 */ create_tag_class draw_tag;
     /* 0xD8 */ leafdraw_method_class* sub_method;

include/f_op/f_op_overlap.h

@@ -4,8 +4,8 @@
 #include "f_pc/f_pc_leaf.h"
 #include "SSystem/SComponent/c_request.h"
 
-class overlap_task_class : public leafdraw_class {
-public:
+struct overlap_task_class {
+    /* 0x00 */ leafdraw_class base;
     /* 0xC0 */ leafdraw_method_class* submethod;
     /* 0xC4 */ request_base_class request;
     /* 0xC8 */ fpc_ProcID scene_id;

include/f_op/f_op_view.h

@@ -39,7 +39,8 @@ struct view_port_class {
     /* 0x18 */ scissor_class scissor;
 };
 
-struct view_class : public leafdraw_class {
+struct view_class {
+    /* 0x000 */ leafdraw_class base;
     /* 0x0C0 */ leafdraw_method_class* sub_method;
     /* 0x0C4 */ u8 field_0xc4;
     /* 0x0C8 */ f32 near;