2 files changed, 208 insertions, 0 deletions
diff --git a/src/engine/objects/HotAirBalloon.cpp b/src/engine/objects/HotAirBalloon.cpp
new file mode 100644
index 000000000..234eef6d9
--- /dev/null
+++ b/src/engine/objects/HotAirBalloon.cpp
@@ -0,0 +1,174 @@
+#include "HotAirBalloon.h"
+#include "World.h"
+#include "port/Game.h"
+
+extern "C" {
+#include "render_objects.h"
+#include "update_objects.h"
+#include "assets/luigi_raceway_data.h"
+#include "assets/common_data.h"
+#include "math_util.h"
+#include "math_util_2.h"
+#include "code_80086E70.h"
+#include "code_80057C60.h"
+#include "actors.h"
+}
+
+OHotAirBalloon::OHotAirBalloon(const FVector& pos) {
+    _pos = pos;
+
+    D_80165898 = 0;
+
+    // Spawn balloon on second lap.
+    if (GetCourse() == GetLuigiRaceway()) {
+        _visible = (bool*)&D_80165898;
+    } else { // Spawn balloon on race start
+        bool mod = true;
+        _visible = &mod;
+    }
+
+    init_object(indexObjectList1[0], 0);
+}
+
+void OHotAirBalloon::Tick() {
+    s32 objectIndex = indexObjectList1[0];
+    
+    if (*_visible) {
+        if (gObjectList[objectIndex].state != 0) {
+            OHotAirBalloon::func_80085768(objectIndex);
+            OHotAirBalloon::func_80085534(objectIndex);
+            object_calculate_new_pos_offset(objectIndex);
+            if (gObjectList[objectIndex].state >= 2) {
+                gActorHotAirBalloonItemBox->pos[0] = gObjectList[objectIndex].pos[0];
+                gActorHotAirBalloonItemBox->pos[1] = gObjectList[objectIndex].pos[1] - 10.0;
+                gActorHotAirBalloonItemBox->pos[2] = gObjectList[objectIndex].pos[2];
+            }
+        }
+    }
+}
+
+void OHotAirBalloon::Draw(s32 cameraId) {
+    s32 objectIndex;
+    objectIndex = indexObjectList1[0];
+    if (*_visible) {
+        if (gGamestate != CREDITS_SEQUENCE) {
+            func_8008A1D0(objectIndex, cameraId, 0x000005DC, 0x00000BB8);
+            if (is_obj_flag_status_active(objectIndex, VISIBLE) != 0) {
+                OHotAirBalloon::func_80055CCC(objectIndex, cameraId);
+            }
+        } else {
+            clear_object_flag(objectIndex, 0x00100000);
+            OHotAirBalloon::func_80055CCC(objectIndex, cameraId);
+        }
+    }
+}
+
+void OHotAirBalloon::func_80055CCC(s32 objectIndex, s32 cameraId) {
+    UNUSED s32 pad;
+    f32 test;
+    Camera* camera;
+
+    camera = &camera1[cameraId];
+    if (gObjectList[objectIndex].state >= 2) {
+        func_8008A454(objectIndex, cameraId, 0x0000012C);
+        test = gObjectList[objectIndex].pos[1] - gObjectList[objectIndex].surfaceHeight;
+        func_8004A6EC(objectIndex, (20.0 / test) + 0.5);
+        if (is_obj_index_flag_status_inactive(objectIndex, 0x00100000) != 0) {
+            func_80043328(gObjectList[objectIndex].pos, (u16*) gObjectList[objectIndex].direction_angle,
+                          gObjectList[objectIndex].sizeScaling, (Gfx*)d_course_luigi_raceway_dl_F960);
+            gSPDisplayList(gDisplayListHead++, (Gfx*)d_course_luigi_raceway_dl_F650);
+        } else {
+            D_80183E80[0] = (s16) gObjectList[objectIndex].direction_angle[0];
+            D_80183E80[1] =
+                (s16) (func_800418AC(gObjectList[objectIndex].pos[0], gObjectList[objectIndex].pos[2], camera->pos) +
+                       0x8000);
+            D_80183E80[2] = (u16) gObjectList[objectIndex].direction_angle[2];
+            func_80043328(gObjectList[objectIndex].pos, D_80183E80, gObjectList[objectIndex].sizeScaling,
+                          (Gfx*)d_course_luigi_raceway_dl_FBE0);
+            gSPDisplayList(gDisplayListHead++, (Gfx*)d_course_luigi_raceway_dl_FA20);
+            if (gPlayerCountSelection1 == 1) {
+                gObjectList[objectIndex].direction_angle[1] = 0;
+            }
+        }
+    }
+}
+
+void OHotAirBalloon::init_hot_air_balloon(s32 objectIndex) {
+    gObjectList[objectIndex].sizeScaling = 1.0f;
+    gObjectList[objectIndex].model = (Gfx*)d_course_luigi_raceway_dl_F960;
+    if (gGamestate != CREDITS_SEQUENCE) {
+        set_obj_origin_pos(objectIndex, xOrientation * _pos.x, _pos.y, _pos.z);
+        set_obj_origin_offset(objectIndex, 0.0f, 300.0f, 0.0f);
+    } else {
+        set_obj_origin_pos(objectIndex, xOrientation * _pos.x, _pos.y, _pos.z);
+        set_obj_origin_offset(objectIndex, 0.0f, 300.0f, 0.0f);
+    }
+    func_8008B844(objectIndex);
+    func_800886F4(objectIndex);
+    func_80086EF0(objectIndex);
+    gObjectList[objectIndex].velocity[1] = -2.0f;
+    init_actor_hot_air_balloon_item_box(0.0f, 0.0f, 0.0f);
+    object_next_state(objectIndex);
+}
+
+void OHotAirBalloon::func_80085534(s32 objectIndex) {
+    switch (gObjectList[objectIndex].unk_0AE) {
+        case 1:
+            if (gObjectList[objectIndex].offset[1] <= 18.0) {
+                func_80086FD4(objectIndex);
+            }
+            break;
+        case 2:
+            f32_step_towards(&gObjectList[objectIndex].velocity[1], 0.0f, 0.05f);
+            if (gObjectList[objectIndex].velocity[1] == 0.0) {
+                func_80086FD4(objectIndex);
+            }
+            break;
+        case 3:
+            func_800871AC(objectIndex, 1);
+            break;
+        case 4:
+            f32_step_towards(&gObjectList[objectIndex].velocity[1], 1.0f, 0.05f);
+            if (gObjectList[objectIndex].velocity[1] == 1.0) {
+                func_80086FD4(objectIndex);
+            }
+            break;
+        case 5:
+            func_800871AC(objectIndex, 90);
+            break;
+        case 6:
+            f32_step_towards(&gObjectList[objectIndex].velocity[1], 0.0f, 0.05f);
+            if (gObjectList[objectIndex].velocity[1] == 0.0) {
+                func_80086FD4(objectIndex);
+            }
+            break;
+        case 7:
+            f32_step_towards(&gObjectList[objectIndex].velocity[1], -1.0f, 0.05f);
+            if (gObjectList[objectIndex].velocity[1] == -1.0) {
+                func_80086FD4(objectIndex);
+            }
+            break;
+        case 8:
+            func_800871AC(objectIndex, 90);
+            break;
+        case 9:
+            f32_step_towards(&gObjectList[objectIndex].velocity[1], 0.0f, 0.05f);
+            if (func_80087060(objectIndex, 90) != 0) {
+                func_8008701C(objectIndex, 3);
+            }
+            break;
+    }
+    object_add_velocity_offset_y(objectIndex);
+    gObjectList[objectIndex].direction_angle[1] += 0x100;
+}
+
+void OHotAirBalloon::func_80085768(s32 objectIndex) {
+    switch (gObjectList[objectIndex].state) { /* irregular */
+        case 1:
+            OHotAirBalloon::init_hot_air_balloon(objectIndex);
+            break;
+        case 0:
+        case 2:
+            break;
+    }
+}
diff --git a/src/engine/objects/HotAirBalloon.h b/src/engine/objects/HotAirBalloon.h
new file mode 100644
index 000000000..301e111c4
--- /dev/null
+++ b/src/engine/objects/HotAirBalloon.h
@@ -0,0 +1,34 @@
+#pragma once
+
+#include <libultraship.h>
+#include <vector>
+#include "Object.h"
+
+#include "World.h"
+
+extern "C" {
+#include "macros.h"
+#include "main.h"
+#include "vehicles.h"
+#include "waypoints.h"
+#include "common_structs.h"
+#include "objects.h"
+#include "camera.h"
+#include "some_data.h"
+}
+
+class OHotAirBalloon : public OObject {
+public:
+    explicit OHotAirBalloon(const FVector& pos);
+
+    virtual void Tick() override;
+    virtual void Draw(s32 cameraId) override;
+    void func_80055CCC(s32 objectIndex, s32 cameraId);
+    void init_hot_air_balloon(s32 objectIndex);
+    void func_80085534(s32 objectIndex);
+    void func_80085768(s32 objectIndex);
+
+private:
+    FVector _pos;
+    bool *_visible;
+};