Add interp callbacks to the stalks of four Baba variants

include/d/actor/d_a_e_db.h

@@ -80,6 +80,12 @@ public:
     /* 0x125C */ u32 field_0x125c;
     /* 0x1260 */ u8 field_0x1260[0x126C - 0x1260];
     /* 0x126C */ u8 HIOInit;
+#if TARGET_PC
+    cXyz mStalkLineInterpPrev[12];
+    cXyz mStalkLineInterpCurr[12];
+    bool mStalkLineInterpPrevValid;
+    bool mStalkLineInterpCurrValid;
+#endif
 };
 
 STATIC_ASSERT(sizeof(e_db_class) == 0x1270);

include/d/actor/d_a_e_hb.h

@@ -73,6 +73,12 @@ public:
     /* 0x124C */ f32 field_0x124c;
     /* 0x1250 */ u8 field_0x1250[0x1264 - 0x1250];
     /* 0x1264 */ u8 HIOInit;
+#if TARGET_PC
+    cXyz mStalkLineInterpPrev[12];
+    cXyz mStalkLineInterpCurr[12];
+    bool mStalkLineInterpPrevValid;
+    bool mStalkLineInterpCurrValid;
+#endif
 };
 
 STATIC_ASSERT(sizeof(e_hb_class) == 0x1268);

include/d/actor/d_a_e_yd.h

@@ -74,6 +74,12 @@ public:
     /* 0x1250 */ f32 field_0x1250;
     /* 0x1254 */ u8 field_0x1254[0x1268 - 0x1254];
     /* 0x1268 */ u8 field_0x1268;
+#if TARGET_PC
+    cXyz mLineMatInterpPrev[12];
+    cXyz mLineMatInterpCurr[12];
+    bool mLineMatInterpPrevValid;
+    bool mLineMatInterpCurrValid;
+#endif
 };
 
 STATIC_ASSERT(sizeof(e_yd_class) == 0x126c);

include/d/actor/d_a_e_yh.h

@@ -77,6 +77,12 @@ public:
     /* 0x1260 */ u32 field_0x1260;
     /* 0x1260 */ u8 field_0x1264[0x1270 - 0x1264];
     /* 0x1270 */ bool mIsHIOOwner;
+#if TARGET_PC
+    cXyz mLineInterpPrev[12];
+    cXyz mLineInterpCurr[12];
+    bool mLineInterpPrevValid;
+    bool mLineInterpCurrValid;
+#endif
 };
 
 STATIC_ASSERT(sizeof(e_yh_class) == 0x1274);

src/d/actor/d_a_e_db.cpp

@@ -10,6 +10,10 @@
 #include "f_op/f_op_kankyo_mng.h"
 #include "f_op/f_op_actor_enemy.h"
 
+#if TARGET_PC
+#include "dusk/frame_interpolation.h"
+#endif
+
 class daE_DB_HIO_c : public JORReflexible {
 public:
     daE_DB_HIO_c();
@@ -66,6 +70,22 @@ static BOOL leaf_anm_init(e_db_class* i_this, int i_anm, f32 i_morf, u8 i_mode,
     return FALSE;
 }
 
+#if TARGET_PC
+static void daE_DB_interp_callback(bool isSimFrame, void* pUserWork) {
+    e_db_class* i_this = (e_db_class*)pUserWork;
+    if (!i_this->mStalkLineInterpPrevValid || !i_this->mStalkLineInterpCurrValid) {
+        return;
+    }
+    const f32 alpha = dusk::frame_interp::get_interpolation_step();
+    cXyz* dst = i_this->stalkLine.getPos(0);
+    for (int i = 0; i < 12; i++) {
+        const cXyz& p0 = i_this->mStalkLineInterpPrev[i];
+        const cXyz& p1 = i_this->mStalkLineInterpCurr[i];
+        dst[i] = p0 + (p1 - p0) * alpha;
+    }
+}
+#endif
+
 static int daE_DB_Draw(e_db_class* i_this) {
     fopAc_ac_c* actor = &i_this->enemy;
 
@@ -95,6 +115,17 @@ static int daE_DB_Draw(e_db_class* i_this) {
     static GXColor l_color = {0x14, 0x0F, 0x00, 0xFF};
     i_this->stalkLine.update(12, l_color, &actor->tevStr);
     dComIfGd_set3DlineMat(&i_this->stalkLine);
+#if TARGET_PC
+    if (dusk::getSettings().game.enableFrameInterpolation) {
+        if (i_this->mStalkLineInterpCurrValid) {
+            memcpy(i_this->mStalkLineInterpPrev, i_this->mStalkLineInterpCurr, sizeof(i_this->mStalkLineInterpCurr));
+            i_this->mStalkLineInterpPrevValid = true;
+        }
+        memcpy(i_this->mStalkLineInterpCurr, i_this->stalkLine.getPos(0), 12 * sizeof(cXyz));
+        i_this->mStalkLineInterpCurrValid = true;
+        dusk::frame_interp::add_interpolation_callback(&daE_DB_interp_callback, i_this);
+    }
+#endif
 
     for (int i = 1; i < 11; i++) {
         if (i_this->thornModel[i] != NULL) {

src/d/actor/d_a_e_hb.cpp

@@ -9,6 +9,10 @@
 #include "d/actor/d_a_e_hb_leaf.h"
 #include "f_op/f_op_actor_enemy.h"
 
+#if TARGET_PC
+#include "dusk/frame_interpolation.h"
+#endif
+
 enum daE_HB_ACTION {
     ACTION_STAY,
     ACTION_APPEAR,
@@ -64,6 +68,22 @@ static BOOL leaf_anm_init(e_hb_class* i_this, int i_anm, f32 i_morf, u8 i_mode,
     return FALSE;
 }
 
+#if TARGET_PC
+static void daE_HB_interp_callback(bool isSimFrame, void* pUserWork) {
+    e_hb_class* i_this = (e_hb_class*)pUserWork;
+    if (!i_this->mStalkLineInterpPrevValid || !i_this->mStalkLineInterpCurrValid) {
+        return;
+    }
+    const f32 alpha = dusk::frame_interp::get_interpolation_step();
+    cXyz* dst = i_this->stalkLine.getPos(0);
+    for (int i = 0; i < 12; i++) {
+        const cXyz& p0 = i_this->mStalkLineInterpPrev[i];
+        const cXyz& p1 = i_this->mStalkLineInterpCurr[i];
+        dst[i] = p0 + (p1 - p0) * alpha;
+    }
+}
+#endif
+
 static int daE_HB_Draw(e_hb_class* i_this) {
     fopAc_ac_c* actor = &i_this->enemy;
 
@@ -82,6 +102,17 @@ static int daE_HB_Draw(e_hb_class* i_this) {
     static GXColor l_color = {0x14, 0x0F, 0x00, 0xFF};
     i_this->stalkLine.update(12, l_color, &actor->tevStr);
     dComIfGd_set3DlineMat(&i_this->stalkLine);
+#if TARGET_PC
+    if (dusk::getSettings().game.enableFrameInterpolation) {
+        if (i_this->mStalkLineInterpCurrValid) {
+            memcpy(i_this->mStalkLineInterpPrev, i_this->mStalkLineInterpCurr, sizeof(i_this->mStalkLineInterpCurr));
+            i_this->mStalkLineInterpPrevValid = true;
+        }
+        memcpy(i_this->mStalkLineInterpCurr, i_this->stalkLine.getPos(0), 12 * sizeof(cXyz));
+        i_this->mStalkLineInterpCurrValid = true;
+        dusk::frame_interp::add_interpolation_callback(&daE_HB_interp_callback, i_this);
+    }
+#endif
 
     for (int i = 1; i < 11; i++) {
         if (i_this->thornModel[i] != NULL) {

src/d/actor/d_a_e_yd.cpp

@@ -12,6 +12,10 @@
 #include "d/d_cc_uty.h"
 #include "f_op/f_op_actor_enemy.h"
 
+#if TARGET_PC
+#include "dusk/frame_interpolation.h"
+#endif
+
 class daE_YD_HIO_c {
 public:
     daE_YD_HIO_c();
@@ -73,6 +77,22 @@ static s32 leaf_anm_init(e_yd_class* i_this, int param_1, f32 param_2, u8 param_
     return false;
 }
 
+#if TARGET_PC
+static void daE_YD_interp_callback(bool isSimFrame, void* pUserWork) {
+    e_yd_class* i_this = (e_yd_class*)pUserWork;
+    if (!i_this->mLineMatInterpPrevValid || !i_this->mLineMatInterpCurrValid) {
+        return;
+    }
+    const f32 alpha = dusk::frame_interp::get_interpolation_step();
+    cXyz* dst = i_this->mLineMat.getPos(0);
+    for (int i = 0; i < 12; i++) {
+        const cXyz& p0 = i_this->mLineMatInterpPrev[i];
+        const cXyz& p1 = i_this->mLineMatInterpCurr[i];
+        dst[i] = p0 + (p1 - p0) * alpha;
+    }
+}
+#endif
+
 static s32 daE_YD_Draw(e_yd_class* i_this) {
     static GXColor l_color = { 0x14, 0x0F, 0x00, 0xFF };
 
@@ -86,6 +106,17 @@ static s32 daE_YD_Draw(e_yd_class* i_this) {
     i_this->mpMorf->entryDL();
     i_this->mLineMat.update(12, l_color, &i_this->actor.tevStr);
     dComIfGd_set3DlineMat(&i_this->mLineMat);
+#if TARGET_PC
+    if (dusk::getSettings().game.enableFrameInterpolation) {
+        if (i_this->mLineMatInterpCurrValid) {
+            memcpy(i_this->mLineMatInterpPrev, i_this->mLineMatInterpCurr, sizeof(i_this->mLineMatInterpCurr));
+            i_this->mLineMatInterpPrevValid = true;
+        }
+        memcpy(i_this->mLineMatInterpCurr, i_this->mLineMat.getPos(0), 12 * sizeof(cXyz));
+        i_this->mLineMatInterpCurrValid = true;
+        dusk::frame_interp::add_interpolation_callback(&daE_YD_interp_callback, i_this);
+    }
+#endif
     for (s32 i = 1; i < 11; i++) {
         if (i_this->field_0x77c[i] != 0) {
             g_env_light.setLightTevColorType_MAJI(i_this->field_0x77c[i], &i_this->actor.tevStr);

src/d/actor/d_a_e_yh.cpp

@@ -12,6 +12,10 @@
 #include "f_op/f_op_actor_enemy.h"
 #include "f_op/f_op_kankyo_mng.h"
 
+#if TARGET_PC
+#include "dusk/frame_interpolation.h"
+#endif
+
 class daE_YH_HIO_c : public JORReflexible {
 public:
     daE_YH_HIO_c();
@@ -85,6 +89,22 @@ static BOOL leaf_anm_init(e_yh_class* i_this, int param_2, f32 param_3, u8 param
     return FALSE;
 }
 
+#if TARGET_PC
+static void daE_YH_interp_callback(bool isSimFrame, void* pUserWork) {
+    e_yh_class* i_this = (e_yh_class*)pUserWork;
+    if (!i_this->mLineInterpPrevValid || !i_this->mLineInterpCurrValid) {
+        return;
+    }
+    const f32 alpha = dusk::frame_interp::get_interpolation_step();
+    cXyz* dst = i_this->mLine.getPos(0);
+    for (int i = 0; i < 12; i++) {
+        const cXyz& p0 = i_this->mLineInterpPrev[i];
+        const cXyz& p1 = i_this->mLineInterpCurr[i];
+        dst[i] = p0 + (p1 - p0) * alpha;
+    }
+}
+#endif
+
 static int daE_YH_Draw(e_yh_class* i_this) {
     fopAc_ac_c* a_this = (fopAc_ac_c*)i_this;
 
@@ -114,6 +134,17 @@ static int daE_YH_Draw(e_yh_class* i_this) {
 
     i_this->mLine.update(12, l_color, &a_this->tevStr);
     dComIfGd_set3DlineMat(&i_this->mLine);
+#if TARGET_PC
+    if (dusk::getSettings().game.enableFrameInterpolation) {
+        if (i_this->mLineInterpCurrValid) {
+            memcpy(i_this->mLineInterpPrev, i_this->mLineInterpCurr, sizeof(i_this->mLineInterpCurr));
+            i_this->mLineInterpPrevValid = true;
+        }
+        memcpy(i_this->mLineInterpCurr, i_this->mLine.getPos(0), 12 * sizeof(cXyz));
+        i_this->mLineInterpCurrValid = true;
+        dusk::frame_interp::add_interpolation_callback(&daE_YH_interp_callback, i_this);
+    }
+#endif
 
     for (int i = 1; i < 11; i++) {
         if (i_this->mModels[i] != NULL) {