Implement Thwomps

2 files changed, 705 insertions, 0 deletions

diff --git a/src/engine/vehicles/OThwomp.cpp b/src/engine/vehicles/OThwomp.cpp
new file mode 100644
index 000000000..7835c150d
--- /dev/null
+++ b/src/engine/vehicles/OThwomp.cpp
@@ -0,0 +1,639 @@
+#include <libultraship.h>
+#include <libultra/gbi.h>
+#include "engine/vehicles/OThwomp.h"
+#include <vector>
+
+#include "port/Game.h"
+
+extern "C" {
+#include "macros.h"
+#include "main.h"
+#include "actors.h"
+#include "math_util.h"
+#include "sounds.h"
+#include "update_objects.h"
+#include "render_player.h"
+#include "external.h"
+#include "bomb_kart.h"
+#include "collision.h"
+#include "code_80086E70.h"
+#include "render_objects.h"
+#include "code_80057C60.h"
+#include "defines.h"
+#include "code_80005FD0.h"
+#include "math_util_2.h"
+#include "collision.h"
+#include "assets/bowsers_castle_data.h"
+#include "ceremony_and_credits.h"
+#include "objects.h"
+#include "update_objects.h"
+#include "render_objects.h"
+extern s8 gPlayerCount;
+}
+
+OThwomp::OThwomp(s32 i, f32 x, f32 z, s16 direction, f32 scale, s16 behaviour, s16 primAlpha) {
+    if (i >= 32) {
+        printf("MAX THWOMPS REACHED (32), skipping\n");
+        return;
+    }
+    _idx = i;
+    _faceDirection = direction;
+    State = (States)behaviour;
+    s32 objectId = indexObjectList1[i];
+    init_object(objectId, 0);
+    gObjectList[objectId].origin_pos[0] = x * xOrientation;
+    gObjectList[objectId].origin_pos[2] = z;
+    gObjectList[objectId].unk_0D5 = behaviour;
+    gObjectList[objectId].primAlpha = primAlpha;
+
+    if (scale == 0) {
+        scale = 1;
+    }
+
+    gObjectList[objectId].sizeScaling = scale;
+}
+
+void OThwomp::Tick() { // func_80081210
+    Player* player;
+    s32 objectIndex;
+    s32 var_s2_3;
+    s32 var_s4;
+
+    D_80165834[0] += 0x100;
+    D_80165834[1] += 0x200;
+    objectIndex = indexObjectList1[_idx];
+    func_800722CC(objectIndex, 0x00000010);
+    func_8008A4CC(objectIndex);
+
+    OThwomp::func_8007F8D8();
+
+    objectIndex = indexObjectList1[_idx];
+    if (gObjectList[objectIndex].state != 0) {
+        switch (State) {
+            case STATIONARY:
+                OThwomp::StationaryBehaviour(objectIndex);
+                break;
+            case MOVE_AND_ROTATE:
+                OThwomp::MoveAndRotateBehaviour(objectIndex);
+                break;
+            case MOVE_FAR:
+                OThwomp::MoveFarBehaviour(objectIndex);
+                break;
+            case STATIONARY_FAST:
+                OThwomp::StationaryFastBehaviour(objectIndex);
+                break;
+            case JAILED:
+                OThwomp::JailedBehaviour(objectIndex);
+                break;
+            case SLIDE:
+                OThwomp::SlidingBehaviour(objectIndex);
+                break;
+        }
+    }
+
+    player = gPlayerOne;
+    for (var_s4 = 0; var_s4 < NUM_PLAYERS; var_s4++, player++) {
+        player->tyres[FRONT_LEFT].unk_14 &= ~3;
+        player->unk_046 &= ~0x0006;
+
+        objectIndex = indexObjectList1[_idx];
+        if (!(player->effects & BOO_EFFECT)) {
+            func_80080B28(objectIndex, var_s4);
+        }
+        if (is_obj_flag_status_active(objectIndex, 0x00020000) != 0) {
+            func_80080A14(objectIndex, player);
+        }
+        if (is_obj_flag_status_active(objectIndex, 0x00010000) != 0) {
+            func_80080A4C(objectIndex, var_s4);
+        }
+
+    }
+    func_8007542C(3);
+
+    objectIndex = indexObjectList1[_idx];
+    if (func_80072320(objectIndex, 0x00000020) == 0) {
+        return;
+    }
+
+    func_800722CC(objectIndex, 0x00000020);
+    func_80080FEC(objectIndex);
+
+    for (var_s4 = 0; var_s4 < gObjectParticle2_SIZE; var_s4++) {
+        objectIndex = gObjectParticle2[var_s4];
+        if (objectIndex == DELETED_OBJECT_ID) {
+            return;
+        }
+        if (gObjectList[objectIndex].state == 0) {
+            return;
+        }
+        func_800810F4(objectIndex);
+        if (gObjectList[objectIndex].state != 0) {
+            return;
+        }
+        delete_object_wrapper(&gObjectParticle2[var_s4]);
+    }
+}
+
+void OThwomp::func_8007F8D8() {
+    Player* player;
+    s32 objectIndex;
+    s32 var_s0;
+    s32 someIndex;
+    s32 var_s4;
+    Object* object;
+
+    player = gPlayerOne;
+    var_s4 = 1;
+
+    objectIndex = indexObjectList1[_idx];
+    object = &gObjectList[objectIndex];
+    if (object->unk_0D5 == 3) {
+        var_s0 = 0;
+        if ((object->state >= 2) && (func_80072354(objectIndex, 8) != 0)) {
+            var_s0 = 1;
+        }
+        var_s4 *= var_s0;
+    }
+
+    if (var_s4 != 0) {
+        for (var_s0 = 0; var_s0 < 4; var_s0++, player++) {
+            if ((player->type & PLAYER_EXISTS) && !(player->type & PLAYER_KART_AI)) {
+                if (OThwomp::func_8007F75C(var_s0) != 0) {
+                    break;
+                }
+            }
+        }
+    }
+}
+
+s32 OThwomp::func_8007F75C(s32 playerId) {
+    s32 someIndex;
+    s32 objectIndex;
+    s32 temp_s7;
+    s32 var_s6;
+    s32 waypoint;
+
+    waypoint = gNearestWaypointByPlayerId[playerId];
+    var_s6 = 0;
+    if ((waypoint >= 0xAA) && (waypoint < 0xB5)) {
+        temp_s7 = random_int(0x0032U) + 0x32;
+        objectIndex = indexObjectList1[_idx];
+        if (gObjectList[objectIndex].unk_0D5 == 3) {
+            var_s6 = 1;
+            func_8007F660(objectIndex, playerId, temp_s7);
+        }
+
+    } else if ((waypoint >= 0xD7) && (waypoint < 0xE2)) {
+        objectIndex = indexObjectList1[_idx];
+        if (gObjectList[objectIndex].unk_0D5 == 3) {
+            var_s6 = 1;
+            func_8007F6C4(objectIndex, playerId);
+        }
+    }
+    return var_s6;
+}
+
+Lights1 thwompLight = gdSPDefLights1(85, 85, 85, 255, 255, 255, -66, 82, -55);
+
+void OThwomp::Draw(s32 cameraId) {
+    s32 objectIndex = 0;
+    s32 i;
+    UNUSED s32 stackPadding0;
+    s16 minusone, plusone;
+    Camera* camera;
+    Object* object;
+    // Lights1 *thwompLightl = (Lights1 *) LOAD_ASSET(thwompLight);
+
+    camera = &camera1[cameraId];
+    if (cameraId == PLAYER_ONE) {
+        objectIndex = indexObjectList1[_idx];
+        set_object_flag_status_false(objectIndex, 0x00070000);
+        func_800722CC(objectIndex, 0x00000110);
+    }
+
+    func_800534A4(objectIndex);
+
+    objectIndex = indexObjectList1[_idx];
+    minusone = gObjectList[objectIndex].unk_0DF - 1;
+    plusone = gObjectList[objectIndex].unk_0DF + 1;
+
+    //! @todo Fix this quick hack fix to allow thwomps to render in custom courses
+    OThwomp::DrawModel(objectIndex);
+    if (GetCourse() != GetBowsersCastle()) {
+    } else {
+        if (gGamestate != CREDITS_SEQUENCE) {
+            if ((D_8018CF68[cameraId] >= minusone) && (plusone >= D_8018CF68[cameraId]) &&
+                (is_object_visible_on_camera(objectIndex, camera, 0x8000) != 0)) {
+                OThwomp::DrawModel(objectIndex);
+            }
+        } else { // CREDITS_SEQUENCE
+            OThwomp::DrawModel(objectIndex);
+        }
+    }
+
+    gSPDisplayList(gDisplayListHead++, (Gfx*)D_0D0079C8);
+    gDPSetCombineMode(gDisplayListHead++, G_CC_MODULATEIA, G_CC_MODULATEIA);
+    gSPNumLights(gDisplayListHead++, 1);
+    gSPLight(gDisplayListHead++, &thwompLight.l[0], LIGHT_1);
+    gSPLight(gDisplayListHead++, &thwompLight.a, LIGHT_2);
+    gSPClearGeometryMode(gDisplayListHead++, G_CULL_BOTH);
+    gSPSetGeometryMode(gDisplayListHead++, G_SHADE | G_LIGHTING | G_SHADING_SMOOTH);
+    load_texture_block_rgba16_mirror((u8*)d_course_bowsers_castle_thwomp_side, 0x00000020, 0x00000020);
+    for (i = 0; i < gObjectParticle3_SIZE; i++) {
+        objectIndex = gObjectParticle3[i];
+        if (objectIndex != NULL_OBJECT_ID) {
+            object = &gObjectList[objectIndex];
+            if ((object->state > 0) && (State == MOVE_FAR) && (gMatrixHudCount <= MTX_HUD_POOL_SIZE_MAX)) {
+                rsp_set_matrix_transformation(object->pos, object->orientation, object->sizeScaling);
+                gSPVertex(gDisplayListHead++, (uintptr_t)D_0D005C00, 3, 0);
+                gSPDisplayList(gDisplayListHead++, (Gfx*)D_0D006930);
+            }
+        }
+    }
+    gSPSetGeometryMode(gDisplayListHead++, G_CULL_BACK);
+    gSPClearGeometryMode(gDisplayListHead++, G_LIGHTING);
+    gSPTexture(gDisplayListHead++, 0x0001, 0x0001, 0, G_TX_RENDERTILE, G_OFF);
+    gSPDisplayList(gDisplayListHead++, (Gfx*)D_0D007AE0);
+    load_texture_block_ia8_nomirror(D_8018D490, 0x00000020, 0x00000020);
+    func_8004B3C8(0);
+    D_80183E80[0] = 0;
+    D_80183E80[2] = 0x8000;
+    for (i = 0; i < gObjectParticle2_SIZE; i++) {
+        objectIndex = gObjectParticle2[i];
+        if (objectIndex != NULL_OBJECT_ID) {
+            object = &gObjectList[objectIndex];
+            if ((object->state >= 2) && (State == MOVE_AND_ROTATE) && (gMatrixHudCount <= MTX_HUD_POOL_SIZE_MAX)) {
+                func_8004B138(0x000000FF, 0x000000FF, 0x000000FF, (s32) object->primAlpha);
+                D_80183E80[1] = func_800418AC(object->pos[0], object->pos[2], camera->pos);
+                func_800431B0(object->pos, D_80183E80, object->sizeScaling, (Vtx*)D_0D005AE0);
+            }
+        }
+    }
+}
+
+void OThwomp::DrawModel(s32 objectIndex) {
+    if ((gObjectList[objectIndex].state >= 2) && (func_80072354(objectIndex, 0x00000040) != 0)) {
+        func_8004A7AC(objectIndex, 1.75f);
+        rsp_set_matrix_transformation(gObjectList[objectIndex].pos, gObjectList[objectIndex].orientation,
+                                      gObjectList[objectIndex].sizeScaling);
+        func_800534E8(objectIndex);
+        gSPDisplayList(gDisplayListHead++, (Gfx*)D_0D007828);
+        gDPSetTextureLUT(gDisplayListHead++, G_TT_RGBA16);
+        gDPLoadTLUT_pal256(gDisplayListHead++, d_course_bowsers_castle_thwomp_tlut);
+        rsp_load_texture_mask((u8*)gObjectList[objectIndex].activeTexture, 0x00000010, 0x00000040, 4);
+        gSPDisplayList(gDisplayListHead++, gObjectList[objectIndex].model);
+    }
+}
+
+void OThwomp::StationaryBehaviour(s32 objectIndex) { // func_8007ED6C
+    UNUSED s32 stackPadding[4];
+    switch (gObjectList[objectIndex].state) {
+        case 0:
+            break;
+        case 1:
+            OThwomp::func_8007EC30(objectIndex);
+            break;
+        case 2:
+            set_and_run_timer_object(objectIndex, 0x0000003C);
+            break;
+        case 3:
+            func_80072568(objectIndex, 0x00000032);
+            break;
+        case 4:
+            if (func_8007E59C(objectIndex) != 0) {
+                func_800725E8(objectIndex, 0x0000012C, 2);
+            } else {
+                func_800726CC(objectIndex, 2);
+            }
+            break;
+    }
+    func_8007E63C(objectIndex);
+    object_calculate_new_pos_offset(objectIndex);
+    gObjectList[objectIndex].direction_angle[1] = gObjectList[objectIndex].orientation[1];
+    func_80073514(objectIndex);
+}
+
+// Stationary
+void OThwomp::func_8007EC30(s32 objectIndex) {
+    Object* object;
+
+    object = &gObjectList[objectIndex];
+    object->surfaceHeight = 0.0f;
+    object->origin_pos[1] = 0.0f;
+    set_obj_origin_offset(objectIndex, 0.0f, 0.0f, 0.0f);
+    if (gIsMirrorMode != 0) {
+        set_obj_direction_angle(objectIndex, 0U, -_faceDirection, 0U);
+        set_obj_orientation(objectIndex, 0U, -_faceDirection, 0U);
+    } else {
+        set_obj_direction_angle(objectIndex, 0U, _faceDirection, 0U);
+        set_obj_orientation(objectIndex, 0U, _faceDirection, 0U);
+    }
+    init_texture_object(objectIndex, (uint8_t*) d_course_bowsers_castle_thwomp_tlut, (const char**) d_course_bowsers_castle_thwomp_faces,
+                        0x10U, (u16) 0x00000040);
+    object->model = (Gfx*)d_course_bowsers_castle_dl_thwomp;
+    object->boundingBoxSize = 0x000C;
+    object->unk_01C[1] = 30.0f;
+    set_object_flag_status_true(objectIndex, 0x05000220);
+    object->type = 0;
+    object->unk_0DF = 6;
+    func_800724DC(objectIndex);
+    object_next_state(objectIndex);
+}
+
+void OThwomp::MoveAndRotateBehaviour(s32 objectIndex) { // func_8007F5A8
+
+    switch (gObjectList[objectIndex].state) { /* irregular */
+        case 0:
+            break;
+        case 1:
+            OThwomp::func_8007EE5C(objectIndex);
+            break;
+        case 3:
+            func_80072568(objectIndex, 0x00000032);
+            break;
+        case 4:
+            func_80086FD4(objectIndex);
+            object_next_state(objectIndex);
+            break;
+    }
+    func_8007E63C(objectIndex);
+    func_8007F544(objectIndex);
+    object_calculate_new_pos_offset(objectIndex);
+    func_80073514(objectIndex);
+}
+
+// MoveAndRotateBehaviour
+void OThwomp::func_8007EE5C(s32 objectIndex) {
+    Object* object;
+
+    init_texture_object(objectIndex, (u8*)d_course_bowsers_castle_thwomp_tlut, (const char**) d_course_bowsers_castle_thwomp_faces,
+                        0x10U, (u16) 0x00000040);
+    object = &gObjectList[objectIndex];
+    object->model = (Gfx*)d_course_bowsers_castle_dl_thwomp;
+    object->boundingBoxSize = 0x000C;
+    set_object_flag_status_true(objectIndex, 0x04000220);
+    object->type = 0;
+    object->unk_0DF = 6;
+    func_80086E70(objectIndex);
+    object->surfaceHeight = 0.0f;
+    object->origin_pos[1] = 0.0f;
+    set_obj_origin_offset(objectIndex, 0.0f, 20.0f, 0.0f);
+    object->unk_01C[1] = 20.0f;
+    if (gIsMirrorMode != 0) {
+        set_obj_direction_angle(objectIndex, 0U, -_faceDirection, 0U);
+        set_obj_orientation(objectIndex, 0U, -_faceDirection, 0U);
+    } else {
+        set_obj_direction_angle(objectIndex, 0U, _faceDirection, 0U);
+        set_obj_orientation(objectIndex, 0U, _faceDirection, 0U);
+    }
+    object->unk_0AE = 1;
+    if (object->primAlpha == 0) {
+        object->unk_0DD = 1;
+    } else {
+        object->unk_0DD = 2;
+    }
+    object_next_state(objectIndex);
+}
+
+void OThwomp::MoveFarBehaviour(s32 objectIndex) { // func_8007FFC0
+    switch (gObjectList[objectIndex].state) {
+        case 0:
+            break;
+        case 1:
+            OThwomp::func_8007FA08(objectIndex);
+            break;
+        case 3:
+            func_80072568(objectIndex, 0x00000032);
+            break;
+        case 4:
+            object_next_state(objectIndex);
+            func_80086FD4(objectIndex);
+            break;
+    }
+    func_8007E63C(objectIndex);
+    func_8007FF5C(objectIndex);
+    object_calculate_new_pos_offset(objectIndex);
+    func_80073514(objectIndex);
+}
+
+// MoveFarBehaviour
+void OThwomp::func_8007FA08(s32 objectIndex) {
+    Object* object;
+
+    init_texture_object(objectIndex, (u8*)d_course_bowsers_castle_thwomp_tlut, (const char**) d_course_bowsers_castle_thwomp_faces,
+                        0x10U, (u16) 0x00000040);
+    object = &gObjectList[objectIndex];
+    object->model = (Gfx*)d_course_bowsers_castle_dl_thwomp;
+    object->boundingBoxSize = 0x000C;
+    set_object_flag_status_true(objectIndex, 0x04000220);
+    object->type = 0;
+    object->surfaceHeight = 0.0f;
+    object->origin_pos[1] = 0.0f;
+    set_obj_origin_offset(objectIndex, 0.0f, 0.0f, 0.0f);
+    set_obj_direction_angle(objectIndex, 0U, 0U, 0U);
+    if (gIsMirrorMode != 0) {
+        set_obj_orientation(objectIndex, 0U, 0xC000U, 0U);
+    } else {
+        set_obj_orientation(objectIndex, 0U, 0x4000U, 0U);
+    }
+    object->velocity[0] = 0.0f;
+    object->direction_angle[1] = object->orientation[1];
+    object->unk_0DD = 1;
+    object->unk_0DF = 8;
+    object->offset[1] = 15.0f;
+    object->unk_01C[1] = 15.0f;
+    object_next_state(objectIndex);
+}
+
+void OThwomp::StationaryFastBehaviour(s32 objectIndex) { // func_800801FC
+    Object* object;
+
+    object = &gObjectList[objectIndex];
+    switch (object->state) {
+        case 0:
+            break;
+        case 1:
+            OThwomp::func_80080078(objectIndex);
+            break;
+        case 2:
+            set_and_run_timer_object(objectIndex, object->timer);
+            break;
+        case 3:
+            func_80072568(objectIndex, 0x00000032);
+            break;
+        case 4:
+            object->timer = 0x0000003C;
+            func_800726CC(objectIndex, 2);
+            break;
+    }
+    func_8007E63C(objectIndex);
+    object_calculate_new_pos_offset(objectIndex);
+    func_80073514(objectIndex);
+}
+
+// StationaryFastBehaviour
+void OThwomp::func_80080078(s32 objectIndex) { // func_80080078
+    Object* object;
+
+    init_texture_object(objectIndex, (u8*)d_course_bowsers_castle_thwomp_tlut, (const char**) d_course_bowsers_castle_thwomp_faces,
+                        0x10U, (u16) 0x00000040);
+    object = &gObjectList[objectIndex];
+    object->model = (Gfx*)d_course_bowsers_castle_dl_thwomp;
+    object->boundingBoxSize = 0x000C;
+    set_object_flag_status_true(objectIndex, 0x04000220);
+    object->type = 2;
+    object->unk_0DF = 8;
+    set_obj_direction_angle(objectIndex, 0U, 0U, 0U);
+    object->surfaceHeight = 0.0f;
+    object->origin_pos[1] = 0.0f;
+    set_obj_origin_offset(objectIndex, 0.0f, 0.0f, 0.0f);
+    object->unk_01C[1] = 30.0f;
+    if (gIsMirrorMode != 0) {
+        set_obj_orientation(objectIndex, 0U, -_faceDirection, 0U);
+    } else {
+        set_obj_orientation(objectIndex, 0U, _faceDirection, 0U);
+    }
+    switch (object->primAlpha) { /* irregular */
+        case 0:
+            object->timer = 2;
+            break;
+        case 1:
+            object->timer = 0x0000003C;
+            break;
+        case 2:
+            object->timer = 0x00000078;
+            break;
+        case 3:
+            object->timer = 0x000000B4;
+            break;
+    }
+    func_800724DC(objectIndex);
+    object_next_state(objectIndex);
+}
+
+void OThwomp::JailedBehaviour(s32 objectIndex) { // func_80080408
+    switch (gObjectList[objectIndex].state) {
+        case 0:
+            break;
+        case 1:
+            OThwomp::func_800802C0(objectIndex);
+            break;
+        case 2:
+            func_8008A6DC(objectIndex, 100.0f);
+            if (is_obj_flag_status_active(objectIndex, VISIBLE) != 0) {
+                func_800C98B8(gObjectList[objectIndex].pos, gObjectList[objectIndex].velocity,
+                              SOUND_ARG_LOAD(0x19, 0x01, 0x80, 0x45));
+                object_next_state(objectIndex);
+            }
+            break;
+        case 3:
+            if (func_800730BC(objectIndex, 3, 5, 1, 6, 6) != 0) {
+                gObjectList[objectIndex].textureListIndex = 0;
+            }
+            break;
+        case 4:
+            if (set_and_run_timer_object(objectIndex, 0x0000012C) != 0) {
+                func_800726CC(objectIndex, 2);
+            }
+            break;
+    }
+    object_calculate_new_pos_offset(objectIndex);
+    func_80073514(objectIndex);
+}
+
+// JailedBehaviour
+void OThwomp::func_800802C0(s32 objectIndex) {
+    Object* object;
+
+    object = &gObjectList[objectIndex];
+    object->unk_0D8 = 0;
+    init_texture_object(objectIndex, (u8*)d_course_bowsers_castle_thwomp_tlut, (const char**) d_course_bowsers_castle_thwomp_faces,
+                        0x10U, (u16) 0x00000040);
+    object->model = (Gfx*)d_course_bowsers_castle_dl_thwomp;
+    object->textureListIndex = 0;
+    object->boundingBoxSize = 0x000C;
+    //object->sizeScaling = 1.5f;
+    set_object_flag_status_true(objectIndex, 0x05000220);
+    object->type = 1;
+    object->unk_0DF = 6;
+    set_obj_origin_offset(objectIndex, 0.0f, 0.0f, 0.0f);
+    set_obj_direction_angle(objectIndex, 0U, 0U, 0U);
+    object->surfaceHeight = 0.0f;
+    object->origin_pos[1] = 0.0f;
+    object->offset[1] = 10.0f;
+    object->unk_01C[1] = 10.0f;
+    if (gIsMirrorMode != 0) {
+        set_obj_orientation(objectIndex, 0U, 0x4000U, 0U);
+    } else {
+        set_obj_orientation(objectIndex, 0U, 0xC000U, 0U);
+    }
+    object->offset[0] = 0.0f;
+    object->offset[2] = 0.0f;
+    func_800724DC(objectIndex);
+    object_next_state(objectIndex);
+}
+
+void OThwomp::SlidingBehaviour(s32 objectIndex) { // func_800808CC
+    switch (gObjectList[objectIndex].state) { /* irregular */
+        case 0:
+            break;
+        case 1:
+            OThwomp::func_80080524(objectIndex);
+            break;
+        case 2:
+            func_800730BC(objectIndex, 3, 5, 1, 6, -1);
+            break;
+    }
+    if (gObjectList[objectIndex].state >= 2) {
+        func_8007E63C(objectIndex);
+        func_8008085C(objectIndex);
+        func_80073514(objectIndex);
+        if (gGamestate != 9) {
+            if ((D_8018D40C == 0) && (gObjectList[objectIndex].state == 2)) {
+                func_800C98B8(gObjectList[objectIndex].pos, gObjectList[objectIndex].velocity,
+                              SOUND_ARG_LOAD(0x19, 0x03, 0x60, 0x45));
+            }
+        } else if ((gCutsceneShotTimer < 0xBF) && (((s16) gCutsceneShotTimer % 88) == 0x0000001E)) {
+            func_800C98B8(gObjectList[objectIndex].pos, gObjectList[objectIndex].velocity,
+                          SOUND_ARG_LOAD(0x19, 0x03, 0x60, 0x45));
+        }
+    }
+}
+
+// SlidingBehaviour
+void OThwomp::func_80080524(s32 objectIndex) {
+    Object* object;
+
+    init_texture_object(objectIndex, (u8*)d_course_bowsers_castle_thwomp_tlut, (const char**) d_course_bowsers_castle_thwomp_faces,
+                        0x10U, (u16) 0x00000040);
+    object = &gObjectList[objectIndex];
+    object->model = (Gfx*)d_course_bowsers_castle_dl_thwomp;
+    object->boundingBoxSize = 0x000C;
+    object->textureListIndex = 0;
+    set_object_flag_status_true(objectIndex, 0x04000220);
+    object->type = 0;
+    object->unk_0DF = 0x0A;
+    func_80086E70(objectIndex);
+    set_obj_origin_offset(objectIndex, 0.0f, 0.0f, 0.0f);
+    object->surfaceHeight = 70.0f;
+    object->origin_pos[1] = 70.0f;
+    object->unk_01C[1] = 0.0f;
+    set_obj_direction_angle(objectIndex, 0U, 0U, 0U);
+    if ((gIsMirrorMode != 0) || (gGamestate == CREDITS_SEQUENCE)) {
+        set_obj_orientation(objectIndex, 0U, -_faceDirection, 0U);
+    } else {
+        set_obj_orientation(objectIndex, 0U, _faceDirection, 0U);
+    }
+    switch (object->primAlpha) { /* irregular */
+        case 0:
+            object->unk_0DD = 2;
+            object->velocity[2] = -1.0f;
+            break;
+        case 1:
+            object->unk_0DD = 2;
+            object->velocity[2] = -1.5f;
+            break;
+    }
+    func_800722A4(objectIndex, 0x00000080);
+    object_next_state(objectIndex);
+}
diff --git a/src/engine/vehicles/OThwomp.h b/src/engine/vehicles/OThwomp.h
new file mode 100644
index 000000000..dee64044d
--- /dev/null
+++ b/src/engine/vehicles/OThwomp.h
@@ -0,0 +1,66 @@
+#pragma once
+
+#include <libultraship.h>
+#include <vector>
+
+extern "C" {
+#include "macros.h"
+#include "main.h"
+#include "vehicles.h"
+#include "waypoints.h"
+#include "common_structs.h"
+#include "objects.h"
+}
+
+/**
+ * Used in VS mode
+ * 
+ * This differs from the other vehicle classes in that it does not get added to the standard actor list
+ * So this is sort of its own thing. Draw call in different place too.
+ */
+class OThwomp {
+private:
+    enum States : uint16_t {
+        DISABLED,
+        STATIONARY,
+        MOVE_AND_ROTATE,
+        MOVE_FAR, // Requires enough space to work
+        STATIONARY_FAST,
+        SLIDE, // Moves sideways left / right
+        JAILED // Has no collision
+    };
+
+public:
+    States State = States::DISABLED;
+
+    explicit OThwomp(s32 i, f32 x, f32 z, s16 direction, f32 scale, s16 behaviour, s16 primAlpha);
+
+    void Tick();
+    void Draw(s32 playerId);
+    void DrawModel(s32);
+    s32 func_8007F75C(s32 playerId);
+    void func_8007F8D8();
+
+    void StationaryBehaviour(s32 objectIndex);
+    void func_8007EC30(s32 objectIndex);
+
+    void MoveAndRotateBehaviour(s32 objectIndex);
+    void func_8007EE5C(s32 objectIndex);
+
+    void MoveFarBehaviour(s32 objectIndex);
+    void func_8007FA08(s32 objectIndex);
+
+    void StationaryFastBehaviour(s32 objectIndex);
+    void func_80080078(s32 objectIndex);
+
+    void JailedBehaviour(s32 objectIndex);
+    void func_800802C0(s32 objectIndex);
+
+    void SlidingBehaviour(s32 objectIndex);
+    void func_80080524(s32 objectIndex);
+private:
+    s32 _idx;
+    s16 _faceDirection;
+
+
+};