Obj_Mine matched (#1225)

* Obj_Mine

* Obj_Mine

* Fixups

* Nonmatchings + cleanup

* Small cleanup

* externs

* structs complete

* wew

* some docs. still baffling

* documented physics stuff

* docs. physics be wack

* forgot some things

* format

* more cleanup

* merge and such

* format

* more format and cleanup

* asm stuff

* Update src/overlays/actors/ovl_Obj_Mine/z_obj_mine.c

Co-authored-by: Anghelo Carvajal <angheloalf95@gmail.com>

* now with decomp.me

* removed some extraneous macros I didn't end up using

* fixes and formats

* merge

* my god, it matches

* format

* removed macros

* more fixes

* format

* format

---------

Co-authored-by: Maide <eeeedddccc@hotmail.co.uk>
Co-authored-by: Derek Hensley <hensley.derek58@gmail.com>
Co-authored-by: petrie911 <petrie911@users.noreply.github.com>
Co-authored-by: petrie911 <pmontag@Monday.localdomain>
Co-authored-by: Anghelo Carvajal <angheloalf95@gmail.com>

5 files changed, 1276 insertions, 119 deletions

diff --git a/spec b/spec
index 795a32387..c7bd96323 100644
--- a/spec
+++ b/spec
@@ -2905,9 +2905,7 @@ beginseg
     name "ovl_Obj_Mine"
     compress
     include "build/src/overlays/actors/ovl_Obj_Mine/z_obj_mine.o"
-    include "build/data/ovl_Obj_Mine/ovl_Obj_Mine.data.o"
-    include "build/data/ovl_Obj_Mine/ovl_Obj_Mine.bss.o"
-    include "build/data/ovl_Obj_Mine/ovl_Obj_Mine.reloc.o"
+    include "build/src/overlays/actors/ovl_Obj_Mine/ovl_Obj_Mine_reloc.o"
 endseg
 
 beginseg
diff --git a/src/overlays/actors/ovl_Obj_Mine/z_obj_mine.c b/src/overlays/actors/ovl_Obj_Mine/z_obj_mine.c
index 36537cfe3..e5b17469c 100644
--- a/src/overlays/actors/ovl_Obj_Mine/z_obj_mine.c
+++ b/src/overlays/actors/ovl_Obj_Mine/z_obj_mine.c
@@ -1,21 +1,50 @@
 /*
  * File: z_obj_mine.c
  * Overlay: ovl_Obj_Mine
- * Description: Spike metal Mine
+ * Description: Spike metal mine
  */
 
 #include "z_obj_mine.h"
+#include "overlays/actors/ovl_En_Bom/z_en_bom.h"
+#include "objects/object_ny/object_ny.h"
 
 #define FLAGS 0x00000000
 
 #define THIS ((ObjMine*)thisx)
 
+#define LINK_SIZE 12.0f
+#define ATTACH_OFFSET 10.0f
+#define PATH_RADIUS 32.0f
+#define AIR_RADIUS 20.0f
+#define WATER_RADIUS 36.0f
+#define BOMB_SPAWN_OFFSET 15.0f
+#define WATER_KNOCKBACK 7.0f
+#define AIR_KNOCKBACK 0.04f
+
 void ObjMine_Init(Actor* thisx, PlayState* play);
 void ObjMine_Destroy(Actor* thisx, PlayState* play);
-void ObjMine_Update(Actor* thisx, PlayState* play);
-void ObjMine_Draw(Actor* thisx, PlayState* play);
+void ObjMine_Path_Update(Actor* thisx, PlayState* play);
+void ObjMine_Path_Draw(Actor* thisx, PlayState* play);
+
+void ObjMine_Path_SetupStationary(ObjMine* this);
+void ObjMine_Path_Stationary(ObjMine* this, PlayState* play);
+void ObjMine_Path_SetupMove(ObjMine* this);
+void ObjMine_Path_Move(ObjMine* this, PlayState* play);
+void ObjMine_Explode(ObjMine* this, PlayState* play);
+void ObjMine_Air_SetupChained(ObjMine* this);
+void ObjMine_Air_Chained(ObjMine* this, PlayState* play);
+void ObjMine_Air_SetupStationary(ObjMine* this);
+void ObjMine_Air_Stationary(ObjMine* this, PlayState* play);
+void ObjMine_Water_SetupChained(ObjMine* this);
+void ObjMine_Water_Chained(ObjMine* this, PlayState* play);
+void ObjMine_Water_SetupStationary(ObjMine* this);
+void ObjMine_Water_Stationary(ObjMine* this, PlayState* play);
+
+void ObjMine_AirWater_Update(Actor* thisx, PlayState* play);
+void ObjMine_DrawExplosion(Actor* thisx, PlayState* play);
+void ObjMine_Air_Draw(Actor* thisx, PlayState* play);
+void ObjMine_Water_Draw(Actor* thisx, PlayState* play);
 
-#if 0
 ActorInit Obj_Mine_InitVars = {
     /**/ ACTOR_OBJ_MINE,
     /**/ ACTORCAT_PROP,
@@ -24,131 +53,1183 @@ ActorInit Obj_Mine_InitVars = {
     /**/ sizeof(ObjMine),
     /**/ ObjMine_Init,
     /**/ ObjMine_Destroy,
-    /**/ ObjMine_Update,
-    /**/ ObjMine_Draw,
+    /**/ ObjMine_Path_Update,
+    /**/ ObjMine_Path_Draw,
 };
 
-// static ColliderJntSphElementInit sJntSphElementsInit[1] = {
-static ColliderJntSphElementInit D_80A84570[1] = {
+static ColliderJntSphElementInit sJntSphElementsInit[1] = {
     {
-        { ELEMTYPE_UNK2, { 0x00000000, 0x00, 0x00 }, { 0x01CBFFBE, 0x00, 0x00 }, TOUCH_NONE | TOUCH_SFX_NORMAL, BUMP_ON, OCELEM_ON, },
+        {
+            ELEMTYPE_UNK2,
+            { 0x00000000, 0x00, 0x00 },
+            { 0x01CBFFBE, 0x00, 0x00 },
+            TOUCH_NONE | TOUCH_SFX_NORMAL,
+            BUMP_ON,
+            OCELEM_ON,
+        },
         { 0, { { 0, 0, 0 }, 30 }, 100 },
     },
 };
 
-// static ColliderJntSphInit sJntSphInit = {
-static ColliderJntSphInit D_80A84594 = {
-    { COLTYPE_METAL, AT_NONE, AC_ON | AC_TYPE_PLAYER, OC1_ON | OC1_TYPE_PLAYER | OC1_TYPE_1, OC2_TYPE_1, COLSHAPE_JNTSPH, },
-    ARRAY_COUNT(sJntSphElementsInit), D_80A84570, // sJntSphElementsInit,
+static ColliderJntSphInit sJntSphInit = {
+    {
+        COLTYPE_METAL,
+        AT_NONE,
+        AC_ON | AC_TYPE_PLAYER,
+        OC1_ON | OC1_TYPE_PLAYER | OC1_TYPE_1,
+        OC2_TYPE_1,
+        COLSHAPE_JNTSPH,
+    },
+    ARRAY_COUNT(sJntSphElementsInit),
+    sJntSphElementsInit,
 };
 
-// static InitChainEntry sInitChain[] = {
-static InitChainEntry D_80A845E8[] = {
+static f32 sPathSpeeds[] = {
+    1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f, 7.0f, 8.0f,
+};
+
+static ObjMineMtxF3 sStandardBasis = {
+    { 1.0f, 0.0f, 0.0f },
+    { 0.0f, 1.0f, 0.0f },
+    { 0.0f, 0.0f, 1.0f },
+};
+
+static InitChainEntry sInitChain[] = {
     ICHAIN_F32(uncullZoneForward, 1300, ICHAIN_CONTINUE),
     ICHAIN_F32(uncullZoneScale, 150, ICHAIN_CONTINUE),
     ICHAIN_F32(uncullZoneDownward, 100, ICHAIN_CONTINUE),
     ICHAIN_VEC3F_DIV1000(scale, 10, ICHAIN_STOP),
 };
 
-#endif
+void ObjMine_Path_MoveToWaypoint(ObjMine* this, s32 index) {
+    Math_Vec3s_ToVec3f(&this->actor.world.pos, &this->waypoints[index]);
+}
+
+s32 ObjMine_GetUnitVec3f(Vec3f* src, Vec3f* dst) {
+    f32 magnitude = Math3D_Vec3fMagnitude(src);
+
+    if (magnitude < 0.001f) {
+        return false;
+    }
+
+    dst->x = src->x * (1.0f / magnitude);
+    dst->y = src->y * (1.0f / magnitude);
+    dst->z = src->z * (1.0f / magnitude);
+    return true;
+}
+
+s32 ObjMine_GetUnitVec3fNorm(Vec3f* src, Vec3f* dst, f32* norm, f32* invNorm) {
+    f32 magnitude = Math3D_Vec3fMagnitude(src);
+
+    if (magnitude < 0.001f) {
+        return false;
+    }
+
+    dst->x = src->x * (1.0f / magnitude);
+    dst->y = src->y * (1.0f / magnitude);
+    dst->z = src->z * (1.0f / magnitude);
+    *norm = magnitude;
+    *invNorm = 1.0f / magnitude;
+
+    return true;
+}
+
+void ObjMine_Path_SpawnBomb(ObjMine* this, PlayState* play) {
+    EnBom* bomb = (EnBom*)Actor_Spawn(&play->actorCtx, play, ACTOR_EN_BOM, this->actor.world.pos.x,
+                                      this->actor.world.pos.y - BOMB_SPAWN_OFFSET, this->actor.world.pos.z, 0, 0, 0,
+                                      BOMB_TYPE_BODY);
+
+    if (bomb != NULL) {
+        bomb->timer = 0;
+    }
+}
+
+void ObjMine_AirWater_SpawnBomb(ObjMine* this, PlayState* play) {
+    f32 x = this->collider.elements[0].dim.worldSphere.center.x;
+    f32 y = this->collider.elements[0].dim.worldSphere.center.y - BOMB_SPAWN_OFFSET;
+    f32 z = this->collider.elements[0].dim.worldSphere.center.z;
+    EnBom* bomb = (EnBom*)Actor_Spawn(&play->actorCtx, play, ACTOR_EN_BOM, x, y, z, 0, 0, 0, BOMB_TYPE_BODY);
+
+    if (bomb != NULL) {
+        bomb->timer = 0;
+    }
+}
+
+s32 ObjMine_AirWater_CheckOC(ObjMine* this) {
+    if (this->collider.base.ocFlags2 & OC2_HIT_PLAYER) {
+        return true;
+    }
+
+    if (this->collider.base.ocFlags1 & OC1_HIT) {
+        Actor* hitActor = this->collider.base.oc;
+
+        if ((hitActor->id == ACTOR_OBJ_MINE) && (hitActor->room == this->actor.room)) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+void ObjMine_Air_CheckAC(ObjMine* this, s16* hitAngle, s16* torqueAngle) {
+    s32 pad[2];
+    Vec3s* centerPos3s = &this->collider.elements[0].dim.worldSphere.center;
+    Vec3f centerPos;
+    s16 yawToAttack;
+    Actor* attackActor = this->collider.base.ac;
+
+    Math_Vec3s_ToVec3f(&centerPos, centerPos3s);
+    yawToAttack = Math_Vec3f_Yaw(&attackActor->world.pos, &centerPos);
+
+    // dmgFlag check is (DMG_DEKU_BUBBLE | DMG_FIRE_ARROW | DMG_ICE_ARROW | DMG_FIRE_ARROW | DMG_NORMAL_ARROW)
+    if (this->collider.elements[0].info.acHitInfo->toucher.dmgFlags & 0x13820) {
+        *hitAngle = attackActor->shape.rot.y;
+        *torqueAngle = attackActor->shape.rot.y - yawToAttack;
+    } else {
+        Vec3f hitPos;
+        Vec3s* hitPos3s = &this->collider.elements[0].info.bumper.hitPos;
+
+        Math_Vec3s_ToVec3f(&hitPos, hitPos3s);
+        *hitAngle = Actor_WorldYawTowardActor(attackActor, &this->actor);
+        *torqueAngle = Math_Vec3f_Yaw(&attackActor->world.pos, &hitPos) - yawToAttack;
+    }
+}
+
+void ObjMine_Water_CheckAC(ObjMine* this, Vec3f* knockbackDir) {
+    Actor* attackActor = this->collider.base.ac;
+
+    // dmgFlag check is (DMG_DEKU_BUBBLE | DMG_LIGHT_ARROW | DMG_ICE_ARROW | DMG_FIRE_ARROW | DMG_NORMAL_ARROW)
+    if (this->collider.elements[0].info.acHitInfo->toucher.dmgFlags & 0x13820) {
+        Matrix_Push();
+        Matrix_RotateYS(attackActor->shape.rot.y, MTXMODE_NEW);
+        Matrix_RotateXS(attackActor->shape.rot.x, MTXMODE_APPLY);
+        Matrix_MultVecZ(1.0f, knockbackDir);
+        Matrix_Pop();
+    } else {
+        Vec3f posDiff;
+        Sphere16* sphere = &this->collider.elements[0].dim.worldSphere;
+
+        posDiff.x = sphere->center.x - attackActor->world.pos.x;
+        posDiff.y = sphere->center.y - attackActor->world.pos.y;
+        posDiff.z = sphere->center.z - attackActor->world.pos.z;
+
+        if (!ObjMine_GetUnitVec3f(&posDiff, knockbackDir)) {
+            Math_Vec3f_Copy(knockbackDir, &sStandardBasis.y);
+        }
+    }
+}
+
+void ObjMine_AirWater_Noop(ObjMine* this) {
+}
+
+void ObjMine_ReplaceTranslation(Vec3f* translation) {
+    MtxF* matrix = Matrix_GetCurrent();
+
+    matrix->xw = translation->x;
+    matrix->yw = translation->y;
+    matrix->zw = translation->z;
+}
+
+void ObjMine_SetRotation(ObjMineMtxF3* basis) {
+    MtxF* matrix = Matrix_GetCurrent();
+
+    matrix->xx = basis->x.x;
+    matrix->yx = basis->x.y;
+    matrix->zx = basis->x.z;
+    matrix->wx = 0.0f;
+
+    matrix->xy = basis->y.x;
+    matrix->yy = basis->y.y;
+    matrix->zy = basis->y.z;
+    matrix->wy = 0.0f;
+
+    matrix->xz = basis->z.x;
+    matrix->yz = basis->z.y;
+    matrix->zz = basis->z.z;
+    matrix->wz = 0.0f;
+
+    matrix->xw = 0.0f;
+    matrix->yw = 0.0f;
+    matrix->zw = 0.0f;
+    matrix->ww = 1.0f;
+}
+
+s32 ObjMine_StepUntilParallel(Vec3f* value, Vec3f* target, f32 angleStep) {
+    Vec3f perpVec;
+    Vec3f prevValue;
+    Vec3f perpNormal;
+    f32 cosAngle = Math3D_Parallel(value, target);
+
+    if (Math_CosF(angleStep) <= cosAngle) {
+        Math_Vec3f_Copy(value, target);
+        return true;
+    }
+
+    Matrix_Push();
+    Math_Vec3f_Copy(&prevValue, value);
+    Math3D_CrossProduct(value, target, &perpVec);
+    if (ObjMine_GetUnitVec3f(&perpVec, &perpNormal)) {
+        Matrix_RotateAxisS(RAD_TO_BINANG(angleStep), &perpNormal, MTXMODE_NEW);
+        Matrix_MultVec3f(&prevValue, value);
+    } else {
+        Matrix_RotateXFNew(angleStep);
+        Matrix_MultVec3f(&prevValue, value);
+    }
+
+    Matrix_Pop();
+    return false;
+}
+
+void ObjMine_UpdateCollider(ObjMine* this) {
+    this->collider.elements[0].dim.worldSphere.center.x = this->actor.world.pos.x;
+    this->collider.elements[0].dim.worldSphere.center.y = this->actor.world.pos.y;
+    this->collider.elements[0].dim.worldSphere.center.z = this->actor.world.pos.z;
+}
+
+void ObjMine_Air_InitChain(ObjMine* this, s32 linkCount) {
+    f32 linkCountF = linkCount;
+    ObjMineAirChain* airChain = &this->chain.air;
+    ObjMineAirLink* airLink;
+    s32 i;
+    f32 wallCheckRadius = this->actor.home.rot.z * 5.0f;
+
+    airChain->basis.x.x = 1.0f;
+    airChain->basis.y.y = 1.0f;
+    airChain->basis.z.z = 1.0f;
+
+    airChain->translation.y = 1.0f;
+
+    // Sets restoring force and drag. Longer chains have lower frequency and less drag.
+    if (linkCount > 0) {
+        airChain->restore = -sqrtf((0.124992f / OBJMINE_CHAIN_MAX) / linkCountF);  // constant is close to 1/8
+        airChain->drag = 0.95f + ((0.02000004f / OBJMINE_CHAIN_MAX) * linkCountF); // constant is close to 1/50
+    }
+
+    airChain->swayMax = 0.0002f;
+
+    // Consecutive chain links are offset 90 degrees.
+    for (i = 0, airLink = airChain->links; i < linkCount; i++, airLink++) {
+        airLink->twist = 0x4000;
+    }
+
+    if (wallCheckRadius < 0.0f) {
+        airChain->wallCheckDistSq = -1.0f; // Negative value means skip wall collision checks
+    } else if (wallCheckRadius <= AIR_RADIUS + 1.0f) {
+        airChain->wallCheckDistSq = 0.0f;
+    } else {
+        airChain->wallCheckDistSq = SQ(wallCheckRadius - AIR_RADIUS);
+    }
+}
+
+void ObjMine_Air_InitCollider(ObjMine* this, s32 linkCount) {
+    Matrix_Translate(this->actor.world.pos.x, this->actor.world.pos.y, this->actor.world.pos.z, MTXMODE_NEW);
+    Matrix_Scale(this->actor.scale.x, this->actor.scale.y, this->actor.scale.z, MTXMODE_APPLY);
+    Collider_UpdateSpheres(0, &this->collider);
+}
+
+void ObjMine_Air_SetBasis(ObjMine* this) {
+    ObjMineAirChain* airChain = &this->chain.air;
+    Vec3f tempVec;
+
+    tempVec.x = -airChain->displacement.x;
+    tempVec.y = 1.0f;
+    tempVec.z = -airChain->displacement.z;
+
+    ObjMine_GetUnitVec3f(&tempVec, &airChain->basis.y);
+
+    Math3D_CrossProduct(&sStandardBasis.x, &airChain->basis.y, &tempVec);
+    ObjMine_GetUnitVec3f(&tempVec, &airChain->basis.z);
+
+    Math3D_CrossProduct(&airChain->basis.y, &airChain->basis.z, &tempVec);
+    ObjMine_GetUnitVec3f(&tempVec, &airChain->basis.x);
+}
+
+void ObjMine_Air_SetWorld(ObjMine* this) {
+    s32 linkCount = OBJMINE_GET_LINK_COUNT(&this->actor);
+    f32 chainLength = ATTACH_OFFSET + (linkCount * LINK_SIZE);
+
+    this->actor.world.pos.x = (this->chain.air.basis.y.x * -chainLength) + this->actor.home.pos.x;
+    this->actor.world.pos.y = (this->chain.air.basis.y.y * -chainLength) + this->actor.home.pos.y;
+    this->actor.world.pos.z = (this->chain.air.basis.y.z * -chainLength) + this->actor.home.pos.z;
+}
+
+void ObjMine_Air_SetChainXZ(ObjMine* this) {
+    s32 linkCount = OBJMINE_GET_LINK_COUNT(&this->actor);
+    f32 invLength = 1.0f / (ATTACH_OFFSET + (linkCount * LINK_SIZE));
+    f32 dx = this->actor.world.pos.x - this->actor.home.pos.x;
+    f32 dz = this->actor.world.pos.z - this->actor.home.pos.z;
+
+    this->chain.air.displacement.x = dx * invLength;
+    this->chain.air.displacement.z = dz * invLength;
+}
+
+void ObjMine_Water_InitChain(ObjMine* this, s32 linkCount) {
+    ObjMineWaterChain* waterChain = &this->chain.water;
+    ObjMineWaterLink* waterLink;
+    s32 i;
+    f32 wallCheckRadius = this->actor.home.rot.z * 5.0f;
+    f32 linkY;
+    f32 swayVel;
+
+    waterChain->drag = 0.9f;
+    waterChain->swayMax = 0.003f;
+
+    waterChain->swayPhaseVel = Rand_Next() >> (0x20 - 13);
+    waterChain->restoreXZ = -0.0002f;
+    waterChain->restoreY = -0.0002f;
+
+    swayVel = waterChain->swayMax * (LINK_SIZE / 2.0f);
+    linkY = this->actor.home.pos.y;
+
+    for (i = 0, waterLink = waterChain->links; i < linkCount; i++, waterLink++) {
+        linkY += LINK_SIZE;
+        waterLink->basis.x.x = 1.0f;
+        waterLink->basis.y.y = 1.0f;
+        waterLink->basis.z.z = 1.0f;
+        waterLink->pos.x = this->actor.home.pos.x;
+        waterLink->pos.y = linkY;
+        waterLink->pos.z = this->actor.home.pos.z;
+        waterLink->velocity.x = (Rand_ZeroOne() - 0.5f) * swayVel;
+        waterLink->velocity.y = (Rand_ZeroOne() - 0.5f) * swayVel;
+        waterLink->velocity.z = (Rand_ZeroOne() - 0.5f) * swayVel;
+    }
+    waterChain->maxY = linkY;
+
+    // Rest position is slightly below max chain length to give slack.
+    waterChain->restY = waterChain->maxY * 0.97f;
+    linkY -= LINK_SIZE * 1.5f;
+    if (waterChain->restY < linkY) { // This should only happen if linkCount > 50
+        waterChain->restY = linkY;
+    }
+
+    if (wallCheckRadius < 0.0f) {
+        waterChain->wallCheckDistSq = -1.0f; // Negative value means skip wall collision checks
+    } else if (wallCheckRadius <= WATER_RADIUS + 1.0f) {
+        waterChain->wallCheckDistSq = 0.0f;
+    } else {
+        waterChain->wallCheckDistSq = SQ(wallCheckRadius - WATER_RADIUS);
+    }
+}
+
+void ObjMine_Water_InitCollider(ObjMine* this, s32 linkCount) {
+    Matrix_Translate(this->actor.home.pos.x, this->actor.home.pos.y + (linkCount * LINK_SIZE) + ATTACH_OFFSET,
+                     this->actor.home.pos.z, MTXMODE_NEW);
+    Matrix_Scale(this->actor.scale.x, this->actor.scale.y, this->actor.scale.z, MTXMODE_APPLY);
+    Collider_UpdateSpheres(0, &this->collider);
+}
+
+void ObjMine_Water_SetWorld(ObjMine* this) {
+    s32 pad; // Could be recast to thisx as in ObjMine_Path_Move
+    ObjMineWaterChain* waterChain = &this->chain.water;
+    s32 linkCount = OBJMINE_GET_LINK_COUNT(&this->actor);
+
+    if (linkCount == 0) {
+        this->actor.world.pos.y = this->actor.home.pos.y + LINK_SIZE + ATTACH_OFFSET;
+    } else {
+        ObjMineWaterLink* lastLink = &waterChain->links[linkCount - 1];
+        Vec3f mineOffset;
+
+        Math_Vec3f_ScaleAndStore(&lastLink->basis.y, ATTACH_OFFSET, &mineOffset);
+        Math_Vec3f_Sum(&lastLink->pos, &mineOffset, &this->actor.world.pos);
+    }
+}
+
+void ObjMine_Water_WallCheck(ObjMine* this, PlayState* play) {
+    s32 pad; // Could be recast to thisx as in ObjMine_Path_Move
+    ObjMineWaterChain* waterChain = &this->chain.water;
+
+    waterChain->touchWall = false;
+    if (waterChain->wallCheckDistSq > -1e-6f) {
+        //  Checks for walls if mine is sufficiently far from home. If found, sets ejection force towards home.
+        if (waterChain->wallCheckDistSq <= Math3D_XZDistanceSquared(this->actor.home.pos.x, this->actor.home.pos.z,
+                                                                    this->actor.world.pos.x, this->actor.world.pos.z)) {
+            Vec3f centerPos;
+            Vec3f offsetPos;
+            Vec3f result; // not used
+            Vec3f xzFromHome;
+            Vec3f xzDirFromHome;
+            CollisionPoly* poly; // not used
+            s32 bgId;            // not used
+            f32 norm;            // not used
+            f32 invNorm;         // not used
+
+            xzFromHome.x = this->actor.world.pos.x - this->actor.home.pos.x;
+            xzFromHome.y = 0.0f;
+            xzFromHome.z = this->actor.world.pos.z - this->actor.home.pos.z;
+
+            if (ObjMine_GetUnitVec3fNorm(&xzFromHome, &xzDirFromHome, &norm, &invNorm)) {
+
+                offsetPos.x = this->actor.world.pos.x + (xzDirFromHome.x * WATER_RADIUS);
+                offsetPos.y = this->actor.world.pos.y;
+                offsetPos.z = this->actor.world.pos.z + (xzDirFromHome.z * WATER_RADIUS);
+
+                centerPos.x = this->actor.home.pos.x;
+                centerPos.y = this->actor.world.pos.y;
+                centerPos.z = this->actor.home.pos.z;
+
+                if (BgCheck_EntityLineTest1(&play->colCtx, &centerPos, &offsetPos, &result, &poly, true, false, false,
+                                            true, &bgId)) {
+                    waterChain->touchWall = true;
+                    waterChain->wallEject.x = xzDirFromHome.x * -0.2f;
+                    waterChain->wallEject.z = xzDirFromHome.z * -0.2f;
+                }
+            }
+        }
+    }
+}
+
+Vec3f sLastLinkAccel[OBJMINE_CHAIN_MAX + 1];
+
+void ObjMine_Water_ApplyForces(ObjMine* this) {
+    ObjMineWaterChain* waterChain = &this->chain.water;
+    ObjMineWaterLink* waterLink;
+    s32 i;
+    s16 swayPhase = 0;
+    s32 linkCount = OBJMINE_GET_LINK_COUNT(&this->actor);
+    f32 inverseCount = 1.0f / linkCount;
+    f32 restoreY = (waterChain->links[linkCount - 1].pos.y - waterChain->restY) * waterChain->restoreY;
+    Vec3f tension;
+    f32 scaledKnockback;
+    s32 index;
+    s32 pad;
+    Vec3f* lastLinkAccel;
+
+    // Applies the buoyant force and sway from the water.
+    for (i = 0, waterLink = waterChain->links, lastLinkAccel = sLastLinkAccel; i < linkCount;
+         i++, waterLink++, swayPhase += waterChain->swayPhaseVel, lastLinkAccel++) {
+        Math_Vec3f_Copy(lastLinkAccel, &waterLink->accel);
+
+        if (waterLink->pos.y <= this->actor.home.pos.y) {
+            waterLink->accel.y = waterChain->restoreY * -96.0f;
+        } else if (restoreY > 0.0f) {
+            waterLink->accel.y = (i + 1) * inverseCount * (restoreY / 0.3f);
+        } else {
+            waterLink->accel.y = restoreY;
+        }
+
+        waterLink->accel.x = (waterLink->pos.x - this->actor.home.pos.x) * waterChain->restoreXZ;
+        waterLink->accel.z = (waterLink->pos.z - this->actor.home.pos.z) * waterChain->restoreXZ;
+        waterLink->accel.x += waterChain->swayXZ * Math_SinS(swayPhase);
+        waterLink->accel.y += waterChain->swayY;
+        waterLink->accel.z += waterChain->swayXZ * Math_CosS(swayPhase);
+    }
+
+    // Applies knockback force. Knockback on the links is scaled quadratically, possibly to account for link rotations
+    // being cumulative
+    if (waterChain->knockback > 0.0001f) {
+        for (i = 0, waterLink = waterChain->links; i < linkCount; i++, waterLink++) {
+            scaledKnockback = SQ((linkCount - i) * inverseCount);
+
+            waterLink->accel.x += waterChain->knockbackDir.x * scaledKnockback;
+            waterLink->accel.y += waterChain->knockbackDir.y * scaledKnockback;
+            waterLink->accel.z += waterChain->knockbackDir.z * scaledKnockback;
+        }
+    }
+
+    // Moves chain away from wall if mine is intersecting one
+    if (waterChain->touchWall) {
+        for (i = 0, waterLink = waterChain->links; i < linkCount; i++, waterLink++) {
+            waterLink->accel.x += waterChain->wallEject.x;
+            waterLink->accel.z += waterChain->wallEject.z;
+        }
+    }
+
+    // Forces on the links from other links. This is simulated by a triangle filter on the forces from the previous
+    // frame.
+    for (i = 0, waterLink = waterChain->links; i < linkCount; i++, waterLink++) {
+        Math_Vec3f_Copy(&tension, &gZeroVec3f);
+
+        if (i >= 2) {
+            tension.x += sLastLinkAccel[i - 2].x * 0.075f;
+            tension.y += sLastLinkAccel[i - 2].y * 0.075f;
+            tension.z += sLastLinkAccel[i - 2].z * 0.075f;
+        }
+
+        if (i >= 1) {
+            tension.x += sLastLinkAccel[i - 1].x * 0.15f;
+            tension.y += sLastLinkAccel[i - 1].y * 0.15f;
+            tension.z += sLastLinkAccel[i - 1].z * 0.15f;
+        }
+
+        tension.x += sLastLinkAccel[i].x * 0.3f;
+        tension.y += sLastLinkAccel[i].y * 0.3f;
+        tension.z += sLastLinkAccel[i].z * 0.3f;
+
+        index = i + 1;
+        if (index < linkCount) {
+            tension.x += sLastLinkAccel[index].x * 0.15f;
+            tension.y += sLastLinkAccel[index].y * 0.15f;
+            tension.z += sLastLinkAccel[index].z * 0.15f;
+        }
+
+        index = i + 2;
+        if (index < linkCount) {
+            tension.x += sLastLinkAccel[index].x * 0.075f;
+            tension.y += sLastLinkAccel[index].y * 0.075f;
+            tension.z += sLastLinkAccel[index].z * 0.075f;
+        }
+        waterLink->accel.x += tension.x;
+        waterLink->accel.y += tension.y;
+        waterLink->accel.z += tension.z;
+    }
+}
+
+void ObjMine_Water_UpdateLinks(ObjMine* this) {
+    s32 pad; // Could be recast to thisx as in ObjMine_Path_Move
+    ObjMineMtxF3 newBasis;
+    s32 linkCount = OBJMINE_GET_LINK_COUNT(&this->actor);
+    ObjMineWaterChain* waterChain = &this->chain.water;
+    ObjMineWaterLink* waterLink;
+    s32 i;
+    Vec3f* prevBasisX;
+    Vec3f tempVec;
+    Vec3f diffDir;
+    Vec3f unusedLinkPos;
+    Vec3f jointPos;
+    s32 changeBasis;
+    f32 diffNorm;
+    f32 invNorm; // not used
+    Vec3f* tempBasisX;
+
+    // The joint between the current link and next link is half the link's length from its center. The first link is
+    // assumed to be vertical and centered on home.
+    jointPos.x = this->actor.home.pos.x;
+    jointPos.y = this->actor.home.pos.y + (LINK_SIZE / 2.0f);
+    jointPos.z = this->actor.home.pos.z;
+
+    for (i = 0, prevBasisX = NULL, waterLink = waterChain->links; i < linkCount;
+         i++, prevBasisX = &waterLink->basis.x, waterLink++) {
+        changeBasis = false;
+
+        waterLink->velocity.x += waterLink->accel.x;
+        waterLink->velocity.y += waterLink->accel.y;
+        waterLink->velocity.z += waterLink->accel.z;
+
+        Math_Vec3f_Scale(&waterLink->velocity, waterChain->drag);
+        Math_Vec3f_Copy(&unusedLinkPos, &waterLink->pos);
+
+        waterLink->pos.x += waterLink->velocity.x;
+        waterLink->pos.y += waterLink->velocity.y;
+        waterLink->pos.z += waterLink->velocity.z;
+
+        // Heavily reduce velocity if link is below home and moving downward.
+        if ((waterLink->pos.y <= this->actor.home.pos.y) && (waterLink->velocity.y < 0.0f)) {
+            waterLink->velocity.y *= 0.1f;
+        }
+
+        // If the calculated position is less than 1/3 of the link's length from the joint, the chain is considered
+        // slack and the link keeps the same basis. Otherwise the basis is updated with the new position relative to the
+        // joint. The StepUntilParallel causes the chain to straighten over time.
+        Math_Vec3f_Diff(&waterLink->pos, &jointPos, &tempVec);
+
+        if (ObjMine_GetUnitVec3fNorm(&tempVec, &diffDir, &diffNorm, &invNorm) && (diffNorm > LINK_SIZE / 3.0f)) {
+            Math_Vec3f_Copy(&newBasis.y, &waterLink->basis.y);
+            ObjMine_StepUntilParallel(&newBasis.y, &diffDir, M_PI / 30);
+
+            tempBasisX = (prevBasisX == NULL) ? &sStandardBasis.x : prevBasisX;
+
+            Math3D_CrossProduct(tempBasisX, &newBasis.y, &tempVec);
+
+            // Skips change of basis if any of the basis vectors would be zero.
+            if (ObjMine_GetUnitVec3f(&tempVec, &newBasis.z)) {
+                Math3D_CrossProduct(&newBasis.y, &newBasis.z, &tempVec);
+                if (ObjMine_GetUnitVec3f(&tempVec, &newBasis.x)) {
+                    changeBasis = true;
+                }
+            }
+        }
+
+        if (changeBasis) {
+            Math_Vec3f_Copy(&waterLink->basis.x, &newBasis.x);
+            Math_Vec3f_Copy(&waterLink->basis.y, &newBasis.y);
+            Math_Vec3f_Copy(&waterLink->basis.z, &newBasis.z);
+        } else {
+            diffNorm = LINK_SIZE / 3.0f;
+        }
+
+        // Sets new link position from calculated rotation basis. The check ensures displacement from the previous link
+        // doesn't cause the links to separate
+        if (diffNorm >= (LINK_SIZE / 2.0f)) {
+            waterLink->pos.x = jointPos.x + (waterLink->basis.y.x * (LINK_SIZE / 2.0f));
+            waterLink->pos.y = jointPos.y + (waterLink->basis.y.y * (LINK_SIZE / 2.0f));
+            waterLink->pos.z = jointPos.z + (waterLink->basis.y.z * (LINK_SIZE / 2.0f));
+        } else {
+            waterLink->pos.x = jointPos.x + (waterLink->basis.y.x * diffNorm);
+            waterLink->pos.y = jointPos.y + (waterLink->basis.y.y * diffNorm);
+            waterLink->pos.z = jointPos.z + (waterLink->basis.y.z * diffNorm);
+        }
+
+        // Calculate the position of the joint with the next link.
+        jointPos.x = waterLink->pos.x + (waterLink->basis.y.x * (LINK_SIZE / 2.0f));
+        jointPos.y = waterLink->pos.y + (waterLink->basis.y.y * (LINK_SIZE / 2.0f));
+        jointPos.z = waterLink->pos.z + (waterLink->basis.y.z * (LINK_SIZE / 2.0f));
+    }
+}
+
+void ObjMine_Water_UpdateChain(ObjMine* this, PlayState* play) {
+    ObjMine_Water_WallCheck(this, play);
+    ObjMine_Water_ApplyForces(this);
+    ObjMine_Water_UpdateLinks(this);
+}
+
+void ObjMine_Init(Actor* thisx, PlayState* play) {
+    s32 pad; // Can be playstate recast. Must be gamestate recast.
+    ObjMine* this = THIS;
+    s32 pathIndex = OBJMINE_GET_PATH_INDEX(&this->actor);
+    Path* path;
+    s32 bgId; // not used
+    s32 type = OBJMINE_GET_TYPE(&this->actor);
+
+    Actor_ProcessInitChain(&this->actor, sInitChain);
+
+    this->actor.shape.rot.z = 0;
+    this->actor.world.rot.z = 0;
+
+    Collider_InitJntSph(play, &this->collider);
+    Collider_SetJntSph(play, &this->collider, &this->actor, &sJntSphInit, this->colliderElements);
+
+    if (type == OBJMINE_TYPE_PATH) {
+        ActorShape_Init(&this->actor.shape, 0.0f, ActorShadow_DrawCircle, 45.0f);
+        this->actor.shape.shadowAlpha = 140;
+        this->pathSpeed = sPathSpeeds[OBJMINE_GET_PATH_SPEED(&this->actor)]; // sPathSpeeds[i] = i + 1.0f
+        if (pathIndex == 0xFF) {
+            ObjMine_Path_SetupStationary(this);
+        } else {
+            path = &play->setupPathList[pathIndex];
+
+            this->waypointIndex = 0;
+            this->waypointCount = path->count - 1;
+            this->waypoints = (Vec3s*)Lib_SegmentedToVirtual(path->points);
+
+            ObjMine_Path_MoveToWaypoint(this, this->waypointIndex);
+            ObjMine_Path_SetupMove(this);
+        }
+        Matrix_SetTranslateRotateYXZ(this->actor.world.pos.x, this->actor.world.pos.y, this->actor.world.pos.z,
+                                     &this->actor.shape.rot);
+        Matrix_Scale(this->actor.scale.x, this->actor.scale.y, this->actor.scale.z, MTXMODE_APPLY);
+        Collider_UpdateSpheres(0, &this->collider);
+        this->actor.floorHeight = BgCheck_EntityRaycastFloor5(&play->colCtx, &this->actor.floorPoly, &bgId,
+                                                              &this->actor, &this->actor.world.pos);
+    } else {
+        s32 linkCount = OBJMINE_GET_LINK_COUNT(&this->actor);
+
+        this->actor.update = ObjMine_AirWater_Update;
+        this->actor.uncullZoneScale = 150.0f + (linkCount * (LINK_SIZE * 1.75f));
+        this->actor.uncullZoneDownward = 150.0f + (linkCount * (LINK_SIZE * 1.75f));
+        ActorShape_Init(&this->actor.shape, 0.0f, ActorShadow_DrawCircle, 45.0f);
+        this->actor.shape.shadowAlpha = 140;
+
+        if (type == OBJMINE_TYPE_AIR) {
+            this->actor.draw = ObjMine_Air_Draw;
+            ObjMine_Air_InitChain(this, linkCount);
+            this->actor.world.pos.y = -ATTACH_OFFSET - (linkCount * LINK_SIZE) + this->actor.home.pos.y;
+            ObjMine_Air_InitCollider(this, linkCount);
+            func_800B4AEC(play, &this->actor, 0.0f);
+            if (linkCount == 0) {
+                ObjMine_Air_SetupStationary(this);
+            } else {
+                ObjMine_Air_SetupChained(this);
+            }
+        } else {
+            this->actor.draw = ObjMine_Water_Draw;
+            ObjMine_Water_InitChain(this, linkCount);
+            this->actor.world.pos.y = ATTACH_OFFSET + (linkCount * LINK_SIZE) + this->actor.home.pos.y;
+            ObjMine_Water_InitCollider(this, linkCount);
+            if (linkCount == 0) {
+                ObjMine_Water_SetupStationary(this);
+            } else {
+                ObjMine_Water_SetupChained(this);
+            }
+        }
+    }
+}
+
+void ObjMine_Destroy(Actor* thisx, PlayState* play) {
+    ObjMine* this = THIS;
+
+    Collider_DestroyJntSph(play, &this->collider);
+}
+
+void ObjMine_Path_SetupStationary(ObjMine* this) {
+    this->actionFunc = ObjMine_Path_Stationary;
+}
+
+void ObjMine_Path_Stationary(ObjMine* this, PlayState* play) {
+}
+
+void ObjMine_Path_SetupMove(ObjMine* this) {
+    this->actor.flags |= ACTOR_FLAG_10;
+    this->actionFunc = ObjMine_Path_Move;
+}
+
+void ObjMine_Path_Move(ObjMine* this, PlayState* play) {
+    Actor* thisx = &this->actor;
+    Vec3f nextWaypoint;
+    f32 distToWaypoint;
+    f32 step;
+    f32 target;
+    s32 bgId; // not used
+
+    // thisx->velocity is temporarily set to the vector difference to the next waypoint.
+    Math_Vec3s_ToVec3f(&nextWaypoint, &this->waypoints[this->waypointIndex + 1]);
+    Math_Vec3f_Diff(&nextWaypoint, &thisx->world.pos, &thisx->velocity);
+    distToWaypoint = Math3D_Vec3fMagnitude(&thisx->velocity);
+
+    // Mine slows to 2.0f speed when 8 frames away from the next waypoint
+    if ((distToWaypoint < (this->pathSpeed * 8.0f)) && (this->pathSpeed > 2.0f)) {
+        target = 2.0f + ((this->pathSpeed - 2.0f) * 0.1f);
+        step = this->pathSpeed * 0.03f;
+    } else {
+        target = this->pathSpeed;
+        step = this->pathSpeed * 0.16f;
+    }
+    Math_StepToF(&thisx->speed, target, step);
+
+    // Checks if mine will reach the waypoint next frame
+    if ((thisx->speed + 0.05f) < distToWaypoint) {
+        // Rescales thisx->velocity to be equal in magnitude to speed
+        Math_Vec3f_Scale(&thisx->velocity, thisx->speed / distToWaypoint);
+        thisx->world.pos.x += thisx->velocity.x;
+        thisx->world.pos.y += thisx->velocity.y;
+        thisx->world.pos.z += thisx->velocity.z;
+    } else {
+        thisx->speed *= 0.4f;
+        this->waypointIndex++;
+        if (this->waypointIndex >= this->waypointCount) {
+            this->waypointIndex = 0;
+        }
+        ObjMine_Path_MoveToWaypoint(this, this->waypointIndex);
+    }
+    thisx->floorHeight = BgCheck_EntityRaycastFloor5(&play->colCtx, &thisx->floorPoly, &bgId, thisx, &thisx->world.pos);
+    if (thisx->flags & ACTOR_FLAG_40) {
+        Vec3f rotAxis;
+        Vec3f yhatCrossV;
+        MtxF rotMtxF;
+
+        // Makes mines appear to roll while traversing the path
+        Math3D_CrossProduct(&sStandardBasis.y, &thisx->velocity, &yhatCrossV);
+        if (ObjMine_GetUnitVec3f(&yhatCrossV, &rotAxis)) {
+            Matrix_RotateAxisF(thisx->speed / PATH_RADIUS, &rotAxis, MTXMODE_NEW);
+            Matrix_RotateYS(thisx->shape.rot.y, MTXMODE_APPLY);
+            Matrix_RotateXS(thisx->shape.rot.x, MTXMODE_APPLY);
+            Matrix_RotateZS(thisx->shape.rot.z, MTXMODE_APPLY);
+            Matrix_Get(&rotMtxF);
+            Matrix_MtxFToYXZRot(&rotMtxF, &thisx->shape.rot, false);
+        }
+    }
+}
+
+void ObjMine_SetupExplode(ObjMine* this) {
+    this->actor.flags |= ACTOR_FLAG_10;
+    this->actor.draw = ObjMine_DrawExplosion;
+    this->actor.shape.shadowDraw = NULL;
+    this->actor.scale.x = 0.02f;
+    this->actor.scale.y = 0.02f;
+    this->actor.scale.z = 0.02f;
+    this->actionFunc = ObjMine_Explode;
+}
+
+void ObjMine_Explode(ObjMine* this, PlayState* play) {
+    this->actor.scale.x *= 1.8f;
+    if (this->actor.scale.x > (0.02f * 1.5f * 5.832f)) { // 5.832 = 1.8^3
+        Actor_Kill(&this->actor);
+        return;
+    }
+
+    this->actor.scale.y = this->actor.scale.x;
+    this->actor.scale.z = this->actor.scale.x;
+}
+
+void ObjMine_Air_SetupChained(ObjMine* this) {
+    this->actionFunc = ObjMine_Air_Chained;
+}
+
+void ObjMine_Air_Chained(ObjMine* this, PlayState* play) {
+    s32 pad; // Could be recast to thisx as in ObjMine_Path_Move
+    s32 linkCount = OBJMINE_GET_LINK_COUNT(&this->actor);
+    ObjMineAirChain* airChain = &this->chain.air;
+    ObjMineAirLink* airLink;
+    s32 i;
+    f32 xAccel;
+    f32 zAccel;
+    f32 spin;
+    s16 twistDiff;
+
+    Math_Vec3f_Copy(&airChain->translation, &airChain->basis.y);
+
+    // Explodes if collision with Player or another mine is detected.
+    if (ObjMine_AirWater_CheckOC(this)) {
+        ObjMine_AirWater_SpawnBomb(this, play);
+        ObjMine_AirWater_Noop(this);
+        ObjMine_SetupExplode(this);
+        return;
+    }
+
+    // Calculates initial knockback and torque from hit scaled to chain length
+    if (this->collider.base.acFlags & AC_HIT) {
+        s16 torqueAngle;
+        f32 torque;
+        f32 torqueDiff;
+
+        this->collider.base.acFlags &= ~AC_HIT;
+        airChain->knockback = AIR_KNOCKBACK;
+        ObjMine_Air_CheckAC(this, &airChain->knockbackAngle, &torqueAngle);
+        torque = Math_SinS(torqueAngle) * 0x96;
+        torqueDiff = -(torque / linkCount);
+
+        for (i = 0, airLink = airChain->links; i < linkCount; i++, airLink++) {
+            airLink->spin += (s16)torque;
+            airLink->spin = CLAMP(airLink->spin, -0x320, 0x320);
+            torque -= torqueDiff;
+        }
+    }
+
+    // Applies knockback force. Knockback applies over two frames, with the second at half strength
+    if (airChain->knockback > 0.0001f) {
+        xAccel = Math_SinS(airChain->knockbackAngle) * airChain->knockback;
+        zAccel = Math_CosS(airChain->knockbackAngle) * airChain->knockback;
+        airChain->velocity.x += xAccel;
+        airChain->velocity.z += zAccel;
+        Math_StepToF(&airChain->knockback, 0.0f, AIR_KNOCKBACK * 0.5f);
+    }
+
+    // Applies chain sway, choosing a new sway randomly about every 32 frames
+    if ((Rand_Next() >> (0x20 - 5)) == 0) {
+        airChain->swaySize = Rand_ZeroOne() * airChain->swayMax;
+        airChain->swayPhase = Rand_Next() >> (0x20 - 16);
+    }
+    xAccel = Math_SinS(airChain->swayPhase) * airChain->swaySize;
+    zAccel = Math_CosS(airChain->swayPhase) * airChain->swaySize;
+    airChain->velocity.x += xAccel;
+    airChain->velocity.z += zAccel;
+
+    // Applies the restoring force of gravity and chain tension using small-angle approximation
+    airChain->velocity.x += airChain->displacement.x * airChain->restore;
+    airChain->velocity.z += airChain->displacement.z * airChain->restore;
+
+    // Applies linear drag
+    airChain->velocity.x *= airChain->drag;
+    airChain->velocity.z *= airChain->drag;
+
+    // Updates scaled position and does a safety clamp to 5.0f.
+    airChain->displacement.x += airChain->velocity.x;
+    airChain->displacement.z += airChain->velocity.z;
+
+    airChain->displacement.x = CLAMP(airChain->displacement.x, -5.0f, 5.0f);
+    airChain->displacement.z = CLAMP(airChain->displacement.z, -5.0f, 5.0f);
+
+    ObjMine_Air_SetBasis(this);
+    ObjMine_Air_SetWorld(this);
+
+    // Checks for wall collisions if sufficiently far from home. If collision detected, bounce off the wall at half
+    // speed. If speed is close to zero when hitting wall, weakly eject it instead.
+    if (airChain->wallCheckDistSq > -1e-6f) {
+        if (airChain->wallCheckDistSq <= Math3D_XZDistanceSquared(this->actor.world.pos.x, this->actor.world.pos.z,
+                                                                  this->actor.home.pos.x, this->actor.home.pos.z)) {
+
+            Actor_UpdateBgCheckInfo(play, &this->actor, 0.0f, AIR_RADIUS, 0.0f, UPDBGCHECKINFO_FLAG_1);
+
+            if ((this->actor.bgCheckFlags & BGCHECKFLAG_WALL) && (this->actor.wallPoly != NULL)) {
+                Vec3f xzDir;
+                Vec3f reflectedDir;
+                Vec3f wallNormal;
+                Vec3f xzVel;
+                f32 xzSpeed;
+                f32 invNorm; // not used
+
+                xzVel.x = airChain->velocity.x;
+                xzVel.y = 0.0f;
+                xzVel.z = airChain->velocity.z;
+
+                if (ObjMine_GetUnitVec3fNorm(&xzVel, &xzDir, &xzSpeed, &invNorm)) {
+                    wallNormal.x = COLPOLY_GET_NORMAL(this->actor.wallPoly->normal.x);
+                    wallNormal.y = COLPOLY_GET_NORMAL(this->actor.wallPoly->normal.y);
+                    wallNormal.z = COLPOLY_GET_NORMAL(this->actor.wallPoly->normal.z);
+
+                    func_80179F64(&xzDir, &wallNormal, &reflectedDir);
+
+                    xzSpeed /= 2.0f;
+                    airChain->velocity.x = reflectedDir.x * xzSpeed;
+                    airChain->velocity.z = reflectedDir.z * xzSpeed;
+                } else {
+                    airChain->velocity.x *= -0.1f;
+                    airChain->velocity.z *= -0.1f;
+                }
+                ObjMine_Air_SetChainXZ(this);
+                ObjMine_Air_SetBasis(this);
+                ObjMine_Air_SetWorld(this);
+            }
+        }
+    }
+
+    // Applies three torques to individual chain links:
+    //  - restoring torque towards the default twist of 0x4000
+    //  - random torque for variance
+    //  - linear drag torque
+    for (i = 0, airLink = airChain->links; i < linkCount; i++, airLink++) {
+        twistDiff = airLink->twist - 0x4000;
+        spin = airLink->spin + (twistDiff * -0.05f) + (30.0f * Rand_ZeroOne() - 15.0f);
+        spin *= 0.995f;
+        airLink->spin = spin;
+        airLink->twist += airLink->spin;
+    }
+
+    func_800B4AEC(play, &this->actor, 0.0f);
+    ObjMine_UpdateCollider(this);
+    CollisionCheck_SetOC(play, &play->colChkCtx, &this->collider.base);
+    CollisionCheck_SetAC(play, &play->colChkCtx, &this->collider.base);
+}
+
+void ObjMine_Air_SetupStationary(ObjMine* this) {
+    this->actionFunc = ObjMine_Air_Stationary;
+}
+
+void ObjMine_Air_Stationary(ObjMine* this, PlayState* play) {
+    // Explodes if collision with Player or another mine is detected.
+    if (ObjMine_AirWater_CheckOC(this)) {
+        ObjMine_AirWater_SpawnBomb(this, play);
+        ObjMine_AirWater_Noop(this);
+        ObjMine_SetupExplode(this);
+        return;
+    }
+
+    CollisionCheck_SetOC(play, &play->colChkCtx, &this->collider.base);
+    CollisionCheck_SetAC(play, &play->colChkCtx, &this->collider.base);
+}
+
+void ObjMine_Water_SetupChained(ObjMine* this) {
+    this->actionFunc = ObjMine_Water_Chained;
+}
+
+void ObjMine_Water_Chained(ObjMine* this, PlayState* play) {
+    ObjMineWaterChain* waterChain = &this->chain.water;
+
+    // Explodes if collision with Player or another mine is detected.
+    if (ObjMine_AirWater_CheckOC(this)) {
+        ObjMine_AirWater_SpawnBomb(this, play);
+        ObjMine_AirWater_Noop(this);
+        ObjMine_SetupExplode(this);
+        return;
+    }
 
-extern ColliderJntSphElementInit D_80A84570[1];
-extern ColliderJntSphInit D_80A84594;
-extern InitChainEntry D_80A845E8[];
+    // Calculates knockback from AC hits
+    if (this->collider.base.acFlags & AC_HIT) {
+        this->collider.base.acFlags &= ~AC_HIT;
+        ObjMine_Water_CheckAC(this, &waterChain->knockbackDir);
+        waterChain->knockback = WATER_KNOCKBACK;
+        Math_Vec3f_Scale(&waterChain->knockbackDir, WATER_KNOCKBACK);
+    }
 
-extern UNK_TYPE D_06000030;
-extern UNK_TYPE D_06002068;
+    // Reduces knockback each frame. Effectively makes knockback 60% on the first frame and 20% on the second.
+    if (waterChain->knockback > 0.0001f) {
+        waterChain->knockback = Math_Vec3f_StepTo(&waterChain->knockbackDir, &gZeroVec3f, WATER_KNOCKBACK * 0.4f);
+    }
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A811D0.s")
+    waterChain->drag = 0.9f;
+    waterChain->restoreXZ = -0.0002f;
+    waterChain->restoreY = -0.0002f;
+    waterChain->swayMax = 0.003f;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A8120C.s")
+    // Chooses a new sway randomly about every 32 frames.
+    if (Rand_Next() >> (0x20 - 5) == 0) {
+        s16 randAngle = Rand_Next() >> (0x20 - 16);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A81288.s")
+        waterChain->swayXZ = Math_SinS(randAngle) * 1.8f * waterChain->swayMax;
+        waterChain->swayY = Math_CosS(randAngle) * 0.2f * waterChain->swayMax;
+        waterChain->swayPhaseVel = Rand_Next() >> (0x20 - 13);
+    }
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A8131C.s")
+    ObjMine_Water_UpdateChain(this, play);
+    ObjMine_Water_SetWorld(this);
+    ObjMine_UpdateCollider(this);
+    CollisionCheck_SetOC(play, &play->colChkCtx, &this->collider.base);
+    CollisionCheck_SetAC(play, &play->colChkCtx, &this->collider.base);
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A81384.s")
+void ObjMine_Water_SetupStationary(ObjMine* this) {
+    this->actionFunc = ObjMine_Water_Stationary;
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A8140C.s")
+void ObjMine_Water_Stationary(ObjMine* this, PlayState* play) {
+    // Explodes if collision with Player or another mine is detected.
+    if (ObjMine_AirWater_CheckOC(this)) {
+        ObjMine_AirWater_SpawnBomb(this, play);
+        ObjMine_AirWater_Noop(this);
+        ObjMine_SetupExplode(this);
+        return;
+    }
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A8146C.s")
+    CollisionCheck_SetOC(play, &play->colChkCtx, &this->collider.base);
+    CollisionCheck_SetAC(play, &play->colChkCtx, &this->collider.base);
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A81544.s")
+void ObjMine_Path_Update(Actor* thisx, PlayState* play) {
+    s32 pad; // Can be playstate recast.
+    ObjMine* this = THIS;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A81640.s")
+    if ((this->collider.base.ocFlags2 & OC2_HIT_PLAYER) || (this->collider.base.acFlags & AC_HIT)) {
+        ObjMine_Path_SpawnBomb(this, play);
+        ObjMine_SetupExplode(this);
+    }
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A8164C.s")
+    this->actionFunc(this, play);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A81684.s")
+    if (this->actor.update != NULL) {
+        this->collider.base.ocFlags1 &= ~OC1_HIT;
+        this->collider.base.acFlags &= ~AC_HIT;
+        this->collider.base.ocFlags2 &= ~OC2_HIT_PLAYER;
+        if ((this->actor.flags & ACTOR_FLAG_40) && (this->actionFunc != ObjMine_Explode)) {
+            CollisionCheck_SetOC(play, &play->colChkCtx, &this->collider.base);
+            CollisionCheck_SetAC(play, &play->colChkCtx, &this->collider.base);
+        }
+    }
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A81714.s")
+void ObjMine_AirWater_Update(Actor* thisx, PlayState* play) {
+    ObjMine* this = THIS;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A81818.s")
+    this->actionFunc(this, play);
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A81868.s")
+void ObjMine_Path_Draw(Actor* thisx, PlayState* play) {
+    s32 pad; // Can be playstate recast
+    ObjMine* this = THIS;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A819A4.s")
+    OPEN_DISPS(play->state.gfxCtx);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A81A00.s")
+    if (this->actionFunc == ObjMine_Path_Move) {
+        Collider_UpdateSpheres(0, &this->collider);
+    }
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A81AA4.s")
+    func_800B8050(&this->actor, play, true);
+    Gfx_SetupDL25_Opa(play->state.gfxCtx);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A81B14.s")
+    gSPMatrix(POLY_OPA_DISP++, Matrix_NewMtx(play->state.gfxCtx), G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
+    gDPSetRenderMode(POLY_OPA_DISP++, G_RM_PASS, G_RM_AA_ZB_OPA_SURF2);
+    gDPSetEnvColor(POLY_OPA_DISP++, 0, 0, 0, 255);
+    gSPDisplayList(POLY_OPA_DISP++, object_ny_DL_002068);
+    gSPDisplayList(POLY_OPA_DISP++, object_ny_DL_002188);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A81B7C.s")
+    CLOSE_DISPS(play->state.gfxCtx);
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A81D70.s")
+void ObjMine_DrawExplosion(Actor* thisx, PlayState* play) {
+    s32 pad; // This could be thisx recast or playstate recast. Not enough room on stack for both.
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A81DEC.s")
+    OPEN_DISPS(play->state.gfxCtx);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A81E7C.s")
+    func_800B8118(thisx, play, true);
+    Gfx_SetupDL25_Xlu(play->state.gfxCtx);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A81FFC.s")
+    gDPSetRenderMode(POLY_XLU_DISP++, G_RM_PASS, G_RM_AA_ZB_XLU_SURF2);
+    gDPSetEnvColor(POLY_XLU_DISP++, 0, 0, 0, 75);
+    gSPMatrix(POLY_XLU_DISP++, Matrix_NewMtx(play->state.gfxCtx), G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
+    gSPDisplayList(POLY_XLU_DISP++, object_ny_DL_002068);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A828A8.s")
+    CLOSE_DISPS(play->state.gfxCtx);
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A82C28.s")
+void ObjMine_Air_Draw(Actor* thisx, PlayState* play) {
+    s32 pad; // Can be playstate recast
+    ObjMine* this = THIS;
+    s32 linkCount = OBJMINE_GET_LINK_COUNT(&this->actor);
+    ObjMineAirChain* airChain = &this->chain.air;
+    ObjMineAirLink* airLink;
+    s32 i;
+    Vec3f linkPos;
+    Vec3f linkOffset;
+    Gfx* gfx;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/ObjMine_Init.s")
+    func_800B8050(&this->actor, play, true);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/ObjMine_Destroy.s")
+    OPEN_DISPS(play->state.gfxCtx);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A82F84.s")
+    gfx = POLY_OPA_DISP;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A82F98.s")
+    gSPDisplayList(gfx++, &gSetupDLs[SETUPDL_25]);
+    gSPMatrix(gfx++, Matrix_NewMtx(play->state.gfxCtx), G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
+    gSPDisplayList(gfx++, object_ny_DL_000030);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A82FA8.s")
+    ObjMine_SetRotation(&airChain->basis);
+    Matrix_Scale(this->actor.scale.x, this->actor.scale.y, this->actor.scale.z, MTXMODE_APPLY);
+    if (linkCount != 0) {
+        // Sets pivot point to be half a chain link length below home
+        Math_Vec3f_ScaleAndStore(&airChain->basis.y, -(LINK_SIZE / 2.0f), &linkOffset);
+        linkPos.x = this->actor.home.pos.x - linkOffset.x;
+        linkPos.y = this->actor.home.pos.y - (LINK_SIZE / 2.0f) - linkOffset.y;
+        linkPos.z = this->actor.home.pos.z - linkOffset.z;
+        Math_Vec3f_ScaleAndStore(&airChain->basis.y, -LINK_SIZE, &linkOffset);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A82FC8.s")
+        for (i = 0, airLink = airChain->links; i < linkCount; i++, airLink++) {
+            Matrix_RotateYS(airLink->twist, MTXMODE_APPLY);
+            linkPos.x += linkOffset.x;
+            linkPos.y += linkOffset.y;
+            linkPos.z += linkOffset.z;
+            ObjMine_ReplaceTranslation(&linkPos);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A83214.s")
+            gSPMatrix(gfx++, Matrix_NewMtx(play->state.gfxCtx), G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
+            gSPDisplayList(gfx++, object_ny_DL_000030);
+        }
+    }
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A83258.s")
+    Matrix_RotateXS(0x2000, MTXMODE_APPLY);
+    ObjMine_ReplaceTranslation(&this->actor.world.pos);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A832BC.s")
+    gSPMatrix(gfx++, Matrix_NewMtx(play->state.gfxCtx), G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
+    gDPPipeSync(gfx++);
+    gDPSetRenderMode(gfx++, G_RM_PASS, G_RM_AA_ZB_OPA_SURF2);
+    gDPSetEnvColor(gfx++, 0, 0, 0, 255);
+    gSPDisplayList(gfx++, object_ny_DL_002068);
+    gSPDisplayList(gfx++, object_ny_DL_002188);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A832D0.s")
+    POLY_OPA_DISP = gfx;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A83A74.s")
+    CLOSE_DISPS(play->state.gfxCtx);
+}
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A83A88.s")
+void ObjMine_Water_Draw(Actor* thisx, PlayState* play) {
+    s32 pad; // Can be playstate recast
+    ObjMine* this = THIS;
+    s32 linkCount = OBJMINE_GET_LINK_COUNT(&this->actor);
+    ObjMineWaterChain* waterChain = &this->chain.water;
+    ObjMineWaterLink* waterLink;
+    s32 i;
+    Gfx* gfx;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A83B14.s")
+    func_800B8050(&this->actor, play, true);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A83B28.s")
+    OPEN_DISPS(play->state.gfxCtx);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A83CEC.s")
+    gfx = POLY_OPA_DISP;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A83D00.s")
+    gSPDisplayList(gfx++, &gSetupDLs[SETUPDL_25]);
+    gSPMatrix(gfx++, Matrix_NewMtx(play->state.gfxCtx), G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
+    gSPDisplayList(gfx++, object_ny_DL_000030);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/ObjMine_Update.s")
+    for (i = 0, waterLink = waterChain->links; i < linkCount; i++, waterLink++) {
+        ObjMine_SetRotation(&waterLink->basis);
+        Matrix_Scale(this->actor.scale.x, this->actor.scale.y, this->actor.scale.z, MTXMODE_APPLY);
+        // Consecutive chain links are offset 90 degrees.
+        if ((i % 2) == 0) {
+            Matrix_RotateYS(0x4000, MTXMODE_APPLY);
+        }
+        ObjMine_ReplaceTranslation(&waterLink->pos);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A83E7C.s")
+        gSPMatrix(gfx++, Matrix_NewMtx(play->state.gfxCtx), G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
+        gSPDisplayList(gfx++, object_ny_DL_000030);
+    }
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/ObjMine_Draw.s")
+    Matrix_RotateXS(0x2000, MTXMODE_APPLY);
+    ObjMine_ReplaceTranslation(&this->actor.world.pos);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A83FBC.s")
+    gSPMatrix(gfx++, Matrix_NewMtx(play->state.gfxCtx), G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
+    gDPPipeSync(gfx++);
+    gDPSetRenderMode(gfx++, G_RM_PASS, G_RM_AA_ZB_OPA_SURF2);
+    gDPSetEnvColor(gfx++, 0, 0, 0, 255);
+    gSPDisplayList(gfx++, object_ny_DL_002068);
+    gSPDisplayList(gfx++, object_ny_DL_002188);
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A84088.s")
+    POLY_OPA_DISP = gfx;
 
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Mine/func_80A84338.s")
+    CLOSE_DISPS(play->state.gfxCtx);
+}
diff --git a/src/overlays/actors/ovl_Obj_Mine/z_obj_mine.h b/src/overlays/actors/ovl_Obj_Mine/z_obj_mine.h
index 257a6ff3a..e831f91de 100644
--- a/src/overlays/actors/ovl_Obj_Mine/z_obj_mine.h
+++ b/src/overlays/actors/ovl_Obj_Mine/z_obj_mine.h
@@ -7,11 +7,89 @@ struct ObjMine;
 
 typedef void (*ObjMineActionFunc)(struct ObjMine*, PlayState*);
 
+#define OBJMINE_GET_LINK_COUNT(thisx) ((thisx)->params & 0x3F)
+#define OBJMINE_GET_PATH_INDEX(thisx) ((thisx)->params & 0xFF)
+#define OBJMINE_GET_PATH_SPEED(thisx) (((thisx)->params >> 8) & 7)
+#define OBJMINE_GET_TYPE(thisx) (((thisx)->params >> 12) & 3)
+
+#define OBJMINE_PARAM(type, linkCount, pathIndex, pathSpeed) (((type) << 0xC) | ((type == OBJMINE_TYPE_PATH) ? ((pathIndex) | ((pathSpeed) << 8)) : (linkCount)))
+#define OBJMINE_PATH_PARAM(pathIndex, pathSpeed) OBJMINE_PARAM(OBJMINE_TYPE_PATH, 0, pathIndex, pathSpeed)
+#define OBJMINE_AIR_PARAM(linkCount) OBJMINE_PARAM(OBJMINE_TYPE_AIR, linkCount, 0, 0)
+#define OBJMINE_WATER_PARAM(linkCount) OBJMINE_PARAM(OBJMINE_TYPE_WATER, linkCount, 0, 0)
+
+#define OBJMINE_CHAIN_MAX 63
+
+typedef enum {
+    /* 0 */ OBJMINE_TYPE_PATH,
+    /* 1 */ OBJMINE_TYPE_AIR,
+    /* 2 */ OBJMINE_TYPE_WATER
+} ObjMineType;
+
+typedef struct {
+    /* 0x00 */ Vec3f x;
+    /* 0x0C */ Vec3f y;
+    /* 0x18 */ Vec3f z;
+} ObjMineMtxF3; // size = 0x24
+
+typedef struct {
+    /* 0x0 */ s16 twist;
+    /* 0x2 */ s16 spin;
+} ObjMineAirLink; // size = 0x4
+
+typedef struct {
+    /* 0x00 */ ObjMineMtxF3 basis;
+    /* 0x24 */ Vec3f translation; // unused
+    /* 0x30 */ Vec2f displacement;
+    /* 0x38 */ Vec2f velocity;
+    /* 0x40 */ f32 restore;
+    /* 0x44 */ f32 drag;
+    /* 0x48 */ f32 knockback;
+    /* 0x4C */ s16 knockbackAngle;
+    /* 0x50 */ f32 swaySize;
+    /* 0x54 */ s16 swayPhase;
+    /* 0x58 */ f32 swayMax;
+    /* 0x5C */ f32 wallCheckDistSq;
+    /* 0x60 */ ObjMineAirLink links[OBJMINE_CHAIN_MAX];
+} ObjMineAirChain; // size = 0x15C
+
+typedef struct {
+    /* 0x00 */ ObjMineMtxF3 basis;
+    /* 0x24 */ Vec3f pos; 
+    /* 0x30 */ Vec3f velocity;
+    /* 0x3C */ Vec3f accel; 
+} ObjMineWaterLink; // size = 0x48
+
+typedef struct {
+    /* 0x00 */ f32 drag;
+    /* 0x04 */ Vec3f knockbackDir;
+    /* 0x10 */ f32 knockback;
+    /* 0x14 */ f32 swayXZ;
+    /* 0x18 */ f32 swayY;
+    /* 0x1C */ f32 swayMax;
+    /* 0x20 */ s16 swayPhaseVel;
+    /* 0x24 */ f32 restoreXZ;
+    /* 0x28 */ f32 maxY;
+    /* 0x2C */ f32 restY;
+    /* 0x30 */ f32 restoreY;
+    /* 0x34 */ f32 wallCheckDistSq;
+    /* 0x38 */ Vec2f wallEject;
+    /* 0x40 */ s8 touchWall;
+    /* 0x44 */ ObjMineWaterLink links[OBJMINE_CHAIN_MAX];
+} ObjMineWaterChain; // size = 0x11FC
+
 typedef struct ObjMine {
     /* 0x0000 */ Actor actor;
-    /* 0x0144 */ char unk_144[0x60];
+    /* 0x0144 */ ColliderJntSph collider;
+    /* 0x0164 */ ColliderJntSphElement colliderElements[1];
     /* 0x01A4 */ ObjMineActionFunc actionFunc;
-    /* 0x01A8 */ char unk_1A8[0x120C];
+    /* 0x01A8 */ f32 pathSpeed;
+    /* 0x01AC */ s32 waypointCount;
+    /* 0x01B0 */ s32 waypointIndex;
+    /* 0x01B4 */ Vec3s* waypoints;
+    /* 0x01B8 */ union { 
+                     ObjMineAirChain air;
+                     ObjMineWaterChain water;
+                 } chain;
 } ObjMine; // size = 0x13B4
 
 #endif // Z_OBJ_MINE_H
diff --git a/tools/disasm/functions.txt b/tools/disasm/functions.txt
index 3b50554ba..0e9195dfb 100644
--- a/tools/disasm/functions.txt
+++ b/tools/disasm/functions.txt
@@ -11150,53 +11150,53 @@
     0x80A80508:("EnEgol_SpawnEffect",),
     0x80A80750:("EnEgol_UpdateEffects",),
     0x80A80904:("EnEgol_DrawEffects",),
-    0x80A811D0:("func_80A811D0",),
-    0x80A8120C:("func_80A8120C",),
-    0x80A81288:("func_80A81288",),
-    0x80A8131C:("func_80A8131C",),
-    0x80A81384:("func_80A81384",),
-    0x80A8140C:("func_80A8140C",),
-    0x80A8146C:("func_80A8146C",),
-    0x80A81544:("func_80A81544",),
-    0x80A81640:("func_80A81640",),
-    0x80A8164C:("func_80A8164C",),
-    0x80A81684:("func_80A81684",),
-    0x80A81714:("func_80A81714",),
-    0x80A81818:("func_80A81818",),
-    0x80A81868:("func_80A81868",),
-    0x80A819A4:("func_80A819A4",),
-    0x80A81A00:("func_80A81A00",),
-    0x80A81AA4:("func_80A81AA4",),
-    0x80A81B14:("func_80A81B14",),
-    0x80A81B7C:("func_80A81B7C",),
-    0x80A81D70:("func_80A81D70",),
-    0x80A81DEC:("func_80A81DEC",),
-    0x80A81E7C:("func_80A81E7C",),
-    0x80A81FFC:("func_80A81FFC",),
-    0x80A828A8:("func_80A828A8",),
-    0x80A82C28:("func_80A82C28",),
+    0x80A811D0:("ObjMine_Path_MoveToWaypoint",),
+    0x80A8120C:("ObjMine_GetUnitVec3f",),
+    0x80A81288:("ObjMine_GetUnitVec3fNorm",),
+    0x80A8131C:("ObjMine_Path_SpawnBomb",),
+    0x80A81384:("ObjMine_AirWater_SpawnBomb",),
+    0x80A8140C:("ObjMine_AirWater_CheckOC",),
+    0x80A8146C:("ObjMine_Air_CheckAC",),
+    0x80A81544:("ObjMine_Water_CheckAC",),
+    0x80A81640:("ObjMine_AirWater_Noop",),
+    0x80A8164C:("ObjMine_ReplaceTranslation",),
+    0x80A81684:("ObjMine_ReplaceRotation",),
+    0x80A81714:("ObjMine_StepUntilParallel",),
+    0x80A81818:("ObjMine_UpdateCollider",),
+    0x80A81868:("ObjMine_Air_InitChain",),
+    0x80A819A4:("ObjMine_Air_SetCollider",),
+    0x80A81A00:("ObjMine_Air_SetBasis",),
+    0x80A81AA4:("ObjMine_Air_SetWorld",),
+    0x80A81B14:("ObjMine_Air_SetChainXZ",),
+    0x80A81B7C:("ObjMine_Water_InitChain",),
+    0x80A81D70:("ObjMine_Water_SetCollider",),
+    0x80A81DEC:("ObjMine_Water_SetWorld",),
+    0x80A81E7C:("ObjMine_Water_WallCheck",),
+    0x80A81FFC:("ObjMine_Water_ApplyForces",),
+    0x80A828A8:("ObjMine_Water_UpdateLinks",),
+    0x80A82C28:("ObjMine_Water_UpdateChain",),
     0x80A82C5C:("ObjMine_Init",),
     0x80A82F58:("ObjMine_Destroy",),
-    0x80A82F84:("func_80A82F84",),
-    0x80A82F98:("func_80A82F98",),
-    0x80A82FA8:("func_80A82FA8",),
-    0x80A82FC8:("func_80A82FC8",),
-    0x80A83214:("func_80A83214",),
-    0x80A83258:("func_80A83258",),
-    0x80A832BC:("func_80A832BC",),
-    0x80A832D0:("func_80A832D0",),
-    0x80A83A74:("func_80A83A74",),
-    0x80A83A88:("func_80A83A88",),
-    0x80A83B14:("func_80A83B14",),
-    0x80A83B28:("func_80A83B28",),
-    0x80A83CEC:("func_80A83CEC",),
-    0x80A83D00:("func_80A83D00",),
-    0x80A83D8C:("ObjMine_Update",),
-    0x80A83E7C:("func_80A83E7C",),
-    0x80A83EA0:("ObjMine_Draw",),
-    0x80A83FBC:("func_80A83FBC",),
-    0x80A84088:("func_80A84088",),
-    0x80A84338:("func_80A84338",),
+    0x80A82F84:("ObjMine_Path_SetupStationary",),
+    0x80A82F98:("ObjMine_Path_Stationary",),
+    0x80A82FA8:("ObjMine_Path_SetupMove",),
+    0x80A82FC8:("ObjMine_Path_Move",),
+    0x80A83214:("ObjMine_SetupExplode",),
+    0x80A83258:("ObjMine_Explode",),
+    0x80A832BC:("ObjMine_Air_SetupChained",),
+    0x80A832D0:("ObjMine_Air_Chained",),
+    0x80A83A74:("ObjMine_Air_SetupStationary",),
+    0x80A83A88:("ObjMine_Air_Stationary",),
+    0x80A83B14:("ObjMine_Water_SetupChained",),
+    0x80A83B28:("ObjMine_Water_Chained",),
+    0x80A83CEC:("ObjMine_Water_SetupStationary",),
+    0x80A83D00:("ObjMine_Water_Stationary",),
+    0x80A83D8C:("ObjMine_Path_Update",),
+    0x80A83E7C:("ObjMine_AirWater_Update",),
+    0x80A83EA0:("ObjMine_Path_Draw",),
+    0x80A83FBC:("ObjMine_DrawExplosion",),
+    0x80A84088:("ObjMine_Air_Draw",),
+    0x80A84338:("ObjMine_Water_Draw",),
     0x80A84CD0:("ObjPurify_SetSysMatrix",),
     0x80A84CF8:("ObjPurify_IsPurified",),
     0x80A84D68:("ObjPurify_Init",),
diff --git a/tools/disasm/variables.txt b/tools/disasm/variables.txt
index 1f28ec606..91efbd8e2 100644
--- a/tools/disasm/variables.txt
+++ b/tools/disasm/variables.txt
@@ -12111,7 +12111,7 @@
     0x80A84698:("D_80A84698","f32","",0x4),
     0x80A8469C:("D_80A8469C","f32","",0x4),
     0x80A846A0:("D_80A846A0","f32","",0x4),
-    0x80A849D0:("D_80A849D0","UNK_TYPE4","",0x4),
+    0x80A849D0:("sLastLinkAccel","Vec3f[]","",0x4),
     0x80A85460:("Obj_Purify_InitVars","UNK_TYPE1","",0x1),
     0x80A85480:("ObjPurifyInfoList","UNK_TYPE1","",0x1),
     0x80A854A0:("D_80A854A0","UNK_TYPE1","",0x1),