#include <ultra64.h>
#ifdef NO_SEGMENTED_MEMORY
#include <string.h>
#endif

#include "sm64.h"
#include "audio/external.h"
#include "audio/synthesis.h"
#include "buffers/framebuffers.h"
#include "buffers/zbuffer.h"
#include "game/area.h"
#include "game/debug.h"
#include "game/game_init.h"
#include "game/mario.h"
#include "game/memory.h"
#include "game/object_helpers.h"
#include "game/object_list_processor.h"
#include "game/save_file.h"
#include "game/sound_init.h"
#include "goddard/renderer.h"
#include "geo_layout.h"
#include "graph_node.h"
#include "level_script.h"
#include "level_misc_macros.h"
#include "level_commands.h"
#include "math_util.h"
#include "surface_collision.h"
#include "surface_load.h"
#include "string.h"
#include "game/puppycam2.h"
#include "game/puppyprint.h"
#include "game/emutest.h"

#include "config.h"

#define NUM_PAINTINGS 45

#define CMD_GET(type, offset) (*(type *) (CMD_PROCESS_OFFSET(offset) + (u8 *) sCurrentCmd))

// These are equal
#define CMD_NEXT ((struct LevelCommand *) ((u8 *) sCurrentCmd + (sCurrentCmd->size << CMD_SIZE_SHIFT)))
#define NEXT_CMD ((struct LevelCommand *) ((sCurrentCmd->size << CMD_SIZE_SHIFT) + (u8 *) sCurrentCmd))

struct LevelCommand {
    /*00*/ u8 type;
    /*01*/ u8 size;
    /*02*/ // variable sized argument data
};

enum ScriptStatus {
    SCRIPT_RUNNING =  1,
    SCRIPT_PAUSED  =  0,
    SCRIPT_PAUSED2 = -1
};

static uintptr_t sStack[NUM_TLB_SEGMENTS];

static struct AllocOnlyPool *sLevelPool = NULL;

static u16 sDelayFrames = 0;
static u16 sDelayFrames2 = 0;

static s16 sCurrAreaIndex = -1;

static uintptr_t *sStackTop = sStack;
static uintptr_t *sStackBase = NULL;

static s16 sScriptStatus;
static s32 sRegister;
static struct LevelCommand *sCurrentCmd;

static s32 eval_script_op(s8 op, s32 arg) {
    s32 result = FALSE;

    switch (op) {
        case 0:
            result = sRegister & arg;
            break;
        case 1:
            result = !(sRegister & arg);
            break;
        case 2:
            result = sRegister == arg;
            break;
        case 3:
            result = sRegister != arg;
            break;
        case 4:
            result = sRegister < arg;
            break;
        case 5:
            result = sRegister <= arg;
            break;
        case 6:
            result = sRegister > arg;
            break;
        case 7:
            result = sRegister >= arg;
            break;
    }

    return result;
}

static void level_cmd_load_and_execute(void) {
    main_pool_push_state();
    load_segment(CMD_GET(s16, 2), CMD_GET(void *, 4), CMD_GET(void *, 8), MEMORY_POOL_LEFT, CMD_GET(void *, 16), CMD_GET(void *, 20));

    *sStackTop++ = (uintptr_t) NEXT_CMD;
    *sStackTop++ = (uintptr_t) sStackBase;
    sStackBase = sStackTop;

    sCurrentCmd = segmented_to_virtual(CMD_GET(void *, 12));
}

static void level_cmd_exit_and_execute(void) {
    void *targetAddr = CMD_GET(void *, 12);

    main_pool_pop_state();
    main_pool_push_state();

    load_segment(CMD_GET(s16, 2), CMD_GET(void *, 4), CMD_GET(void *, 8),
            MEMORY_POOL_LEFT, CMD_GET(void *, 16), CMD_GET(void *, 20));

    sStackTop = sStackBase;
    sCurrentCmd = segmented_to_virtual(targetAddr);
}

static void level_cmd_exit(void) {
    main_pool_pop_state();

    sStackTop = sStackBase;
    sStackBase = (uintptr_t *) *(--sStackTop);
    sCurrentCmd = (struct LevelCommand *) *(--sStackTop);
}

static void level_cmd_sleep(void) {
    sScriptStatus = SCRIPT_PAUSED;

    if (sDelayFrames == 0) {
        sDelayFrames = CMD_GET(s16, 2);
    } else if (--sDelayFrames == 0) {
        sCurrentCmd = CMD_NEXT;
        sScriptStatus = SCRIPT_RUNNING;
    }
}

static void level_cmd_sleep2(void) {
    sScriptStatus = SCRIPT_PAUSED2;

    if (sDelayFrames2 == 0) {
        sDelayFrames2 = CMD_GET(s16, 2);
    } else if (--sDelayFrames2 == 0) {
        sCurrentCmd = CMD_NEXT;
        sScriptStatus = SCRIPT_RUNNING;
    }
}

static void level_cmd_jump(void) {
    sCurrentCmd = segmented_to_virtual(CMD_GET(void *, 4));
}

static void level_cmd_jump_and_link(void) {
    *sStackTop++ = (uintptr_t) NEXT_CMD;
    sCurrentCmd = segmented_to_virtual(CMD_GET(void *, 4));
}

static void level_cmd_return(void) {
    sCurrentCmd = (struct LevelCommand *) *(--sStackTop);
}

static void level_cmd_jump_and_link_push_arg(void) {
    *sStackTop++ = (uintptr_t) NEXT_CMD;
    *sStackTop++ = CMD_GET(s16, 2);
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_jump_repeat(void) {
    s32 val = *(sStackTop - 1);

    if (val == 0) {
        sCurrentCmd = (struct LevelCommand *) *(sStackTop - 2);
    } else if (--val != 0) {
        *(sStackTop - 1) = val;
        sCurrentCmd = (struct LevelCommand *) *(sStackTop - 2);
    } else {
        sCurrentCmd = CMD_NEXT;
        sStackTop -= 2;
    }
}

static void level_cmd_loop_begin(void) {
    *sStackTop++ = (uintptr_t) NEXT_CMD;
    *sStackTop++ = 0;
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_loop_until(void) {
    if (eval_script_op(CMD_GET(u8, 2), CMD_GET(s32, 4))) {
        sCurrentCmd = CMD_NEXT;
        sStackTop -= 2;
    } else {
        sCurrentCmd = (struct LevelCommand *) *(sStackTop - 2);
    }
}

static void level_cmd_jump_if(void) {
    if (eval_script_op(CMD_GET(u8, 2), CMD_GET(s32, 4))) {
        sCurrentCmd = segmented_to_virtual(CMD_GET(void *, 8));
    } else {
        sCurrentCmd = CMD_NEXT;
    }
}

static void level_cmd_jump_and_link_if(void) {
    if (eval_script_op(CMD_GET(u8, 2), CMD_GET(s32, 4))) {
        *sStackTop++ = (uintptr_t) NEXT_CMD;
        sCurrentCmd = segmented_to_virtual(CMD_GET(void *, 8));
    } else {
        sCurrentCmd = CMD_NEXT;
    }
}

static void level_cmd_skip_if(void) {
    if (!eval_script_op(CMD_GET(u8, 2), CMD_GET(s32, 4))) {
        do {
            sCurrentCmd = CMD_NEXT;
        } while (sCurrentCmd->type == LEVEL_CMD_SKIP || sCurrentCmd->type == LEVEL_CMD_SKIPPABLE_NOP);
    }

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_skip(void) {
    do {
        sCurrentCmd = CMD_NEXT;
    } while (sCurrentCmd->type == LEVEL_CMD_SKIPPABLE_NOP);

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_skippable_nop(void) {
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_call(void) {
    typedef s32 (*Func)(s16, s32);
    Func func = CMD_GET(Func, 4);
    sRegister = func(CMD_GET(s16, 2), sRegister);
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_call_loop(void) {
    typedef s32 (*Func)(s16, s32);
    Func func = CMD_GET(Func, 4);
    sRegister = func(CMD_GET(s16, 2), sRegister);

    if (sRegister == 0) {
        sScriptStatus = SCRIPT_PAUSED;
    } else {
        sScriptStatus = SCRIPT_RUNNING;
        sCurrentCmd = CMD_NEXT;
    }
}

static void level_cmd_set_register(void) {
    sRegister = CMD_GET(s16, 2);
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_push_pool_state(void) {
    main_pool_push_state();
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_pop_pool_state(void) {
    main_pool_pop_state();
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_load_to_fixed_address(void) {
    load_to_fixed_pool_addr(CMD_GET(void *, 4), CMD_GET(void *, 8), CMD_GET(void *, 12));
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_load_raw(void) {
    load_segment(CMD_GET(s16, 2), CMD_GET(void *, 4), CMD_GET(void *, 8),
            MEMORY_POOL_LEFT, CMD_GET(void *, 12), CMD_GET(void *, 16));
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_load_yay0(void) {
    load_segment_decompress(CMD_GET(s16, 2), CMD_GET(void *, 4), CMD_GET(void *, 8));
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_load_mario_head(void) {
#ifdef KEEP_MARIO_HEAD
    // TODO: Fix these hardcoded sizes
    void *addr = main_pool_alloc(DOUBLE_SIZE_ON_64_BIT(0xE1000), MEMORY_POOL_LEFT);
    if (addr != NULL) {
        gdm_init(addr, DOUBLE_SIZE_ON_64_BIT(0xE1000));
        gd_add_to_heap(gZBuffer, sizeof(gZBuffer)); // 0x25800
        gd_add_to_heap(gFramebuffer0, 3 * sizeof(gFramebuffer0)); // 0x70800
        gdm_setup();
        gdm_maketestdl(CMD_GET(s16, 2));
    }
#endif
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_load_yay0_texture(void) {
    load_segment_decompress(CMD_GET(s16, 2), CMD_GET(void *, 4), CMD_GET(void *, 8));
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_change_area_skybox(void) {
    u8 areaCheck = CMD_GET(s16, 2);
    gAreaSkyboxStart[areaCheck-1] = CMD_GET(void *, 4);
    gAreaSkyboxEnd[areaCheck-1] = CMD_GET(void *, 8);
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_init_level(void) {
    init_graph_node_start(NULL, (struct GraphNodeStart *) &gObjParentGraphNode);
    clear_objects();
    clear_areas();
    main_pool_push_state();
    for (u8 clearPointers = 0; clearPointers < AREA_COUNT; clearPointers++) {
        gAreaSkyboxStart[clearPointers] = 0;
        gAreaSkyboxEnd[clearPointers] = 0;
    }

    sCurrentCmd = CMD_NEXT;
}

extern s32 gTlbEntries;
extern u8  gTlbSegments[NUM_TLB_SEGMENTS];

// This clears all the temporary bank TLB maps. group0, common1 and behavourdata are always loaded,
// and they're also loaded first, so that means we just leave the first 3 indexes mapped.
void unmap_tlbs(void) {
    s32 i;
    for (i = 0; i < NUM_TLB_SEGMENTS; i++) {
        if (gTlbSegments[i]) {
            if (i != SEGMENT_GROUP0_GEO && i != SEGMENT_COMMON1_GEO && i != SEGMENT_BEHAVIOR_DATA) {
                while (gTlbSegments[i] > 0) {
                    osUnmapTLB(gTlbEntries);
                    gTlbSegments[i]--;
                    gTlbEntries--;
#ifdef PUPPYPRINT_DEBUG
                    set_segment_memory_printout(i, 0);
#endif
                }
            } else {
                gTlbEntries -= gTlbSegments[i];
                gTlbSegments[i] = 0;
            }
        }
    }
}

static void level_cmd_clear_level(void) {
    clear_objects();
    clear_area_graph_nodes();
    clear_areas();
    main_pool_pop_state();
    // the game does a push on level load and a pop on level unload, we need to add another push to store state after the level has been loaded, so one more pop is needed
    main_pool_pop_state();
    unmap_tlbs();

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_alloc_level_pool(void) {
    if (sLevelPool == NULL) {
        sLevelPool = alloc_only_pool_init(main_pool_available() - sizeof(struct AllocOnlyPool),
                                          MEMORY_POOL_LEFT);
    }

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_free_level_pool(void) {
    s32 i;

    alloc_only_pool_resize(sLevelPool, sLevelPool->usedSpace);
    sLevelPool = NULL;

    for (i = 0; i < AREA_COUNT; i++) {
        if (gAreaData[i].terrainData != NULL) {
            alloc_surface_pools();
            break;
        }
    }
    main_pool_push_state();

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_begin_area(void) {
    u8 areaIndex = CMD_GET(u8, 2);
    void *geoLayoutAddr = CMD_GET(void *, 4);

    if (areaIndex < AREA_COUNT) {
        struct GraphNodeRoot *screenArea =
            (struct GraphNodeRoot *) process_geo_layout(sLevelPool, geoLayoutAddr);
        struct GraphNodeCamera *node = (struct GraphNodeCamera *) screenArea->views[0];

        sCurrAreaIndex = areaIndex;
        screenArea->areaIndex = areaIndex;
        gAreas[areaIndex].graphNode = screenArea;

        if (node != NULL) {
            gAreas[areaIndex].camera = (struct Camera *) node->config.camera;
        } else {
            gAreas[areaIndex].camera = NULL;
        }
    }

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_end_area(void) {
    sCurrAreaIndex = -1;
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_load_model_from_dl(void) {
    ModelID16 model = CMD_GET(ModelID16, 0xA);
    s16 layer = CMD_GET(u16, 0x8);
    void *dl_ptr = CMD_GET(void *, 4);

    assert(model < MODEL_ID_COUNT, "Tried to load an invalid model ID.");
    if (model < MODEL_ID_COUNT) {
        gLoadedGraphNodes[model] =
            (struct GraphNode *) init_graph_node_display_list(sLevelPool, 0, layer, dl_ptr);
    }

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_load_model_from_geo(void) {
    ModelID16 model = CMD_GET(ModelID16, 2);
    void *geo = CMD_GET(void *, 4);

    assert(model < MODEL_ID_COUNT, "Tried to load an invalid model ID.");
    if (model < MODEL_ID_COUNT) {
        gLoadedGraphNodes[model] = process_geo_layout(sLevelPool, geo);
    }

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_23(void) {
    ModelID16 model = (CMD_GET(ModelID16, 2) & 0x0FFF);
    s16 layer = (((u16)CMD_GET(s16, 2)) >> 12);
    void *dl  = CMD_GET(void *, 4);
    s32 scale = CMD_GET(s32, 8);

    assert(model < MODEL_ID_COUNT, "Tried to load an invalid model ID.");
    if (model < MODEL_ID_COUNT) {
        // GraphNodeScale has a GraphNode at the top. This
        // is being stored to the array, so cast the pointer.
        gLoadedGraphNodes[model] =
            (struct GraphNode *) init_graph_node_scale(sLevelPool, 0, layer, dl, scale);
    }

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_init_mario(void) {
    vec3_zero(gMarioSpawnInfo->startPos);
    vec3_zero(gMarioSpawnInfo->startAngle);

    gMarioSpawnInfo->activeAreaIndex = -1;
    gMarioSpawnInfo->areaIndex = 0;
    gMarioSpawnInfo->behaviorArg = CMD_GET(u32, 4);
    gMarioSpawnInfo->behaviorScript = CMD_GET(void *, 8);
    gMarioSpawnInfo->model = gLoadedGraphNodes[CMD_GET(ModelID16, 0x2)]; // u8, 3?
    gMarioSpawnInfo->next = NULL;

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_place_object(void) {
    if (
        sCurrAreaIndex != -1
        && (CMD_GET(u8, 2) & (1 << (gCurrActNum - 1)))
    ) {
        ModelID16 model = CMD_GET(u32, 0x18);
        struct SpawnInfo *spawnInfo = alloc_only_pool_alloc(sLevelPool, sizeof(struct SpawnInfo));

        vec3s_set(spawnInfo->startPos, CMD_GET(s16, 4),
                                       CMD_GET(s16, 6),
                                       CMD_GET(s16, 8));

        vec3s_set(spawnInfo->startAngle, DEGREES(CMD_GET(s16, 10)),
                                         DEGREES(CMD_GET(s16, 12)),
                                         DEGREES(CMD_GET(s16, 14)));

        spawnInfo->areaIndex = sCurrAreaIndex;
        spawnInfo->activeAreaIndex = sCurrAreaIndex;

        spawnInfo->behaviorArg = CMD_GET(u32, 16);
        spawnInfo->behaviorScript = CMD_GET(void *, 20);
        spawnInfo->model = gLoadedGraphNodes[model];
        spawnInfo->next = gAreas[sCurrAreaIndex].objectSpawnInfos;

        gAreas[sCurrAreaIndex].objectSpawnInfos = spawnInfo;
    }

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_create_warp_node(void) {
    if (sCurrAreaIndex != -1) {
        struct ObjectWarpNode *warpNode =
            alloc_only_pool_alloc(sLevelPool, sizeof(struct ObjectWarpNode));

        warpNode->node.id = CMD_GET(u8, 2);
        warpNode->node.destLevel = CMD_GET(u8, 3) + CMD_GET(u8, 6);
        warpNode->node.destArea = CMD_GET(u8, 4);
        warpNode->node.destNode = CMD_GET(u8, 5);

        warpNode->object = NULL;

        warpNode->next = gAreas[sCurrAreaIndex].warpNodes;
        gAreas[sCurrAreaIndex].warpNodes = warpNode;
    }

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_create_instant_warp(void) {
    s32 i;
    struct InstantWarp *warp;

    if (sCurrAreaIndex != -1) {
        if (gAreas[sCurrAreaIndex].instantWarps == NULL) {
            gAreas[sCurrAreaIndex].instantWarps =
                alloc_only_pool_alloc(sLevelPool, INSTANT_WARP_INDEX_STOP * sizeof(struct InstantWarp));

            for (i = INSTANT_WARP_INDEX_START; i < INSTANT_WARP_INDEX_STOP; i++) {
                gAreas[sCurrAreaIndex].instantWarps[i].id = 0;
            }
        }

        warp = gAreas[sCurrAreaIndex].instantWarps + CMD_GET(u8, 2);

        warp[0].id = SURFACE_INSTANT_WARP_1B + CMD_GET(u8, 2);
        warp[0].area = CMD_GET(u8, 3);

        warp[0].displacement[0] = CMD_GET(s32, 4);
        warp[0].displacement[1] = CMD_GET(s32, 8);
        warp[0].displacement[2] = CMD_GET(s32, 12);
    }

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_set_terrain_type(void) {
    if (sCurrAreaIndex != -1) {
        gAreas[sCurrAreaIndex].terrainType |= CMD_GET(s16, 2);
    }

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_create_painting_warp_node(void) {
    s32 i;
    struct WarpNode *node;

    if (sCurrAreaIndex != -1) {
        if (gAreas[sCurrAreaIndex].paintingWarpNodes == NULL) {
            gAreas[sCurrAreaIndex].paintingWarpNodes =
                alloc_only_pool_alloc(sLevelPool, NUM_PAINTINGS * sizeof(struct WarpNode));

            for (i = 0; i < NUM_PAINTINGS; i++) {
                gAreas[sCurrAreaIndex].paintingWarpNodes[i].id = 0;
            }
        }

        node = &gAreas[sCurrAreaIndex].paintingWarpNodes[CMD_GET(u8, 2)];

        node->id = 1;
        node->destLevel = CMD_GET(u8, 3) + CMD_GET(u8, 6);
        node->destArea = CMD_GET(u8, 4);
        node->destNode = CMD_GET(u8, 5);
    }

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_3A(void) {
    struct UnusedArea28 *val4;

    if (sCurrAreaIndex != -1) {
        if ((val4 = gAreas[sCurrAreaIndex].unused) == NULL) {
            val4 = gAreas[sCurrAreaIndex].unused =
                alloc_only_pool_alloc(sLevelPool, sizeof(struct UnusedArea28));
        }

        val4->unk00 = CMD_GET(s16, 2);
        val4->unk02 = CMD_GET(s16, 4);
        val4->unk04 = CMD_GET(s16, 6);
        val4->unk06 = CMD_GET(s16, 8);
        val4->unk08 = CMD_GET(s16, 10);
    }

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_create_whirlpool(void) {
    struct Whirlpool *whirlpool;
    s32 index = CMD_GET(u8, 2);

    if (
        sCurrAreaIndex != -1
        && index < ARRAY_COUNT(gAreas[sCurrAreaIndex].whirlpools)
        && (CMD_GET(u8, 3) & (1 << (gCurrActNum - 1)))
    ) {
        if ((whirlpool = gAreas[sCurrAreaIndex].whirlpools[index]) == NULL) {
            whirlpool = alloc_only_pool_alloc(sLevelPool, sizeof(struct Whirlpool));
            gAreas[sCurrAreaIndex].whirlpools[index] = whirlpool;
        }

        vec3s_set(whirlpool->pos, CMD_GET(s16, 4), CMD_GET(s16, 6), CMD_GET(s16, 8));
        whirlpool->strength = CMD_GET(s16, 10);
    }

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_set_blackout(void) {
    osViBlack(CMD_GET(u8, 2));
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_set_gamma(void) {
    osViSetSpecialFeatures(CMD_GET(u8, 2) == 0 ? OS_VI_GAMMA_OFF : OS_VI_GAMMA_ON);
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_set_terrain_data(void) {
    if (sCurrAreaIndex != -1) {
#ifndef NO_SEGMENTED_MEMORY
        gAreas[sCurrAreaIndex].terrainData = segmented_to_virtual(CMD_GET(void *, 4));
#else
        // The game modifies the terrain data and must be reset upon level reload.
        Collision *data = segmented_to_virtual(CMD_GET(void *, 4));
        u32 size = get_area_terrain_size(data) * sizeof(Collision);
        gAreas[sCurrAreaIndex].terrainData = alloc_only_pool_alloc(sLevelPool, size);
        memcpy(gAreas[sCurrAreaIndex].terrainData, data, size);
#endif
    }
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_set_rooms(void) {
    if (sCurrAreaIndex != -1) {
        gAreas[sCurrAreaIndex].surfaceRooms = segmented_to_virtual(CMD_GET(void *, 4));
    }
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_set_macro_objects(void) {
    if (sCurrAreaIndex != -1) {
#ifndef NO_SEGMENTED_MEMORY
        gAreas[sCurrAreaIndex].macroObjects = segmented_to_virtual(CMD_GET(void *, 4));
#else
        // The game modifies the macro object data (for example marking coins as taken),
        // so it must be reset when the level reloads.
        MacroObject *data = segmented_to_virtual(CMD_GET(void *, 4));
        s32 len = 0;
        while (data[len++] != MACRO_OBJECT_END()) {
            len += 4;
        }
        gAreas[sCurrAreaIndex].macroObjects = alloc_only_pool_alloc(sLevelPool, len * sizeof(MacroObject));
        memcpy(gAreas[sCurrAreaIndex].macroObjects, data, len * sizeof(MacroObject));
#endif
    }
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_load_area(void) {
    s16 areaIndex = CMD_GET(u8, 2);

    stop_sounds_in_continuous_banks();
    load_area(areaIndex);

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_unload_area(void) {
    unload_area();
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_set_mario_start_pos(void) {
    gMarioSpawnInfo->areaIndex = CMD_GET(u8, 2);

#if IS_64_BIT
    vec3s_set(gMarioSpawnInfo->startPos, CMD_GET(s16, 6), CMD_GET(s16, 8), CMD_GET(s16, 10));
#else
    vec3s_copy(gMarioSpawnInfo->startPos, CMD_GET(Vec3s, 6));
#endif
    vec3s_set(gMarioSpawnInfo->startAngle, 0, CMD_GET(s16, 4) * 0x8000 / 180, 0);

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_unload_mario_area(void) {
    unload_mario_area();
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_update_objects(void) {
    area_update_objects();
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_set_transition(void) {
    if (gCurrentArea != NULL) {
        play_transition(CMD_GET(u8, 2), CMD_GET(u8, 3), CMD_GET(u8, 4), CMD_GET(u8, 5), CMD_GET(u8, 6));
    }
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_nop(void) {
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_show_dialog(void) {
    if (sCurrAreaIndex != -1) {
        if (CMD_GET(u8, 2) < 2) {
            gAreas[sCurrAreaIndex].dialog[CMD_GET(u8, 2)] = CMD_GET(u8, 3);
        }
    }
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_set_music(void) {
    if (sCurrAreaIndex != -1) {
        gAreas[sCurrAreaIndex].musicParam = CMD_GET(s16, 2);
#ifdef BETTER_REVERB
        if (gEmulator & EMU_CONSOLE)
            gAreas[sCurrAreaIndex].betterReverbPreset = CMD_GET(u8, 4);
        else
            gAreas[sCurrAreaIndex].betterReverbPreset = CMD_GET(u8, 5);
#endif
        gAreas[sCurrAreaIndex].musicParam2 = CMD_GET(s16, 6);
    }
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_set_menu_music(void) {
#ifdef BETTER_REVERB
    // Must come before set_background_music()
    if (gEmulator & EMU_CONSOLE)
        gBetterReverbPresetValue = CMD_GET(u8, 4);
    else
        gBetterReverbPresetValue = CMD_GET(u8, 5);
#endif
    set_background_music(0, CMD_GET(s16, 2), 0);
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_fadeout_music(void) {
    s16 dur = CMD_GET(s16, 2);
    if (sCurrAreaIndex != -1 && dur == 0) {
        // Allow persistent block overrides for SET_BACKGROUND_MUSIC_WITH_REVERB
        gAreas[sCurrAreaIndex].musicParam = 0x00;
        gAreas[sCurrAreaIndex].musicParam2 = 0x00;
#ifdef BETTER_REVERB
        gAreas[sCurrAreaIndex].betterReverbPreset = 0x00;
#endif
    } else {
        if (dur < 0)
            dur = 0;
        fadeout_music(dur);
    }
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_get_or_set_var(void) {
    if (CMD_GET(u8, 2) == OP_SET) {
        switch (CMD_GET(u8, 3)) {
            case VAR_CURR_SAVE_FILE_NUM:
                gCurrSaveFileNum = sRegister;
                break;
            case VAR_CURR_COURSE_NUM:
                gCurrCourseNum = sRegister;
                break;
            case VAR_CURR_ACT_NUM:
                gCurrActNum = sRegister;
                break;
            case VAR_CURR_LEVEL_NUM:
                gCurrLevelNum = sRegister;
                break;
            case VAR_CURR_AREA_INDEX:
                gCurrAreaIndex = sRegister;
                break;
        }
    } else {
        switch (CMD_GET(u8, 3)) {
            case VAR_CURR_SAVE_FILE_NUM:
                sRegister = gCurrSaveFileNum;
                break;
            case VAR_CURR_COURSE_NUM:
                sRegister = gCurrCourseNum;
                break;
            case VAR_CURR_ACT_NUM:
                sRegister = gCurrActNum;
                break;
            case VAR_CURR_LEVEL_NUM:
                sRegister = gCurrLevelNum;
                break;
            case VAR_CURR_AREA_INDEX:
                sRegister = gCurrAreaIndex;
                break;
        }
    }

    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_puppyvolume(void) {
#ifdef PUPPYCAM
    if ((sPuppyVolumeStack[gPuppyVolumeCount] = mem_pool_alloc(gPuppyMemoryPool, sizeof(struct sPuppyVolume))) == NULL) {
        sCurrentCmd = CMD_NEXT;
        gPuppyError |= PUPPY_ERROR_POOL_FULL;
        append_puppyprint_log("Puppycamera volume allocation failed.");
        return;
    }

    vec3s_set(sPuppyVolumeStack[gPuppyVolumeCount]->pos, CMD_GET(s16, 2),
                                                         CMD_GET(s16, 4),
                                                         CMD_GET(s16, 6));

    vec3s_set(sPuppyVolumeStack[gPuppyVolumeCount]->radius, CMD_GET(s16,  8),
                                                            CMD_GET(s16, 10),
                                                            CMD_GET(s16, 12));

    sPuppyVolumeStack[gPuppyVolumeCount]->rot = CMD_GET(s16, 14);

    sPuppyVolumeStack[gPuppyVolumeCount]->func   = CMD_GET(void *, 16);
    sPuppyVolumeStack[gPuppyVolumeCount]->angles = segmented_to_virtual(CMD_GET(void *, 20));

    sPuppyVolumeStack[gPuppyVolumeCount]->flagsAdd    = CMD_GET(s32, 24);
    sPuppyVolumeStack[gPuppyVolumeCount]->flagsRemove = CMD_GET(s32, 28);

    sPuppyVolumeStack[gPuppyVolumeCount]->flagPersistance = CMD_GET(u8, 32);

    sPuppyVolumeStack[gPuppyVolumeCount]->shape = CMD_GET(u8,  33);
    sPuppyVolumeStack[gPuppyVolumeCount]->room  = CMD_GET(s16, 34);
    sPuppyVolumeStack[gPuppyVolumeCount]->fov  = CMD_GET(u8, 36);
    sPuppyVolumeStack[gPuppyVolumeCount]->area  = sCurrAreaIndex;

    gPuppyVolumeCount++;
#endif
    sCurrentCmd = CMD_NEXT;
}

static void level_cmd_set_echo(void) {
    if (sCurrAreaIndex >= 0 && sCurrAreaIndex < AREA_COUNT) {
        gAreaData[sCurrAreaIndex].useEchoOverride = TRUE;
        if (gEmulator & EMU_CONSOLE)
            gAreaData[sCurrAreaIndex].echoOverride = CMD_GET(s8, 2);
        else
            gAreaData[sCurrAreaIndex].echoOverride = CMD_GET(s8, 3);
    }
    sCurrentCmd = CMD_NEXT;
}

static void (*LevelScriptJumpTable[])(void) = {
    /*LEVEL_CMD_LOAD_AND_EXECUTE            */ level_cmd_load_and_execute,
    /*LEVEL_CMD_EXIT_AND_EXECUTE            */ level_cmd_exit_and_execute,
    /*LEVEL_CMD_EXIT                        */ level_cmd_exit,
    /*LEVEL_CMD_SLEEP                       */ level_cmd_sleep,
    /*LEVEL_CMD_SLEEP2                      */ level_cmd_sleep2,
    /*LEVEL_CMD_JUMP                        */ level_cmd_jump,
    /*LEVEL_CMD_JUMP_AND_LINK               */ level_cmd_jump_and_link,
    /*LEVEL_CMD_RETURN                      */ level_cmd_return,
    /*LEVEL_CMD_JUMP_AND_LINK_PUSH_ARG      */ level_cmd_jump_and_link_push_arg,
    /*LEVEL_CMD_JUMP_REPEAT                 */ level_cmd_jump_repeat,
    /*LEVEL_CMD_LOOP_BEGIN                  */ level_cmd_loop_begin,
    /*LEVEL_CMD_LOOP_UNTIL                  */ level_cmd_loop_until,
    /*LEVEL_CMD_JUMP_IF                     */ level_cmd_jump_if,
    /*LEVEL_CMD_JUMP_AND_LINK_IF            */ level_cmd_jump_and_link_if,
    /*LEVEL_CMD_SKIP_IF                     */ level_cmd_skip_if,
    /*LEVEL_CMD_SKIP                        */ level_cmd_skip,
    /*LEVEL_CMD_SKIPPABLE_NOP               */ level_cmd_skippable_nop,
    /*LEVEL_CMD_CALL                        */ level_cmd_call,
    /*LEVEL_CMD_CALL_LOOP                   */ level_cmd_call_loop,
    /*LEVEL_CMD_SET_REGISTER                */ level_cmd_set_register,
    /*LEVEL_CMD_PUSH_POOL_STATE             */ level_cmd_push_pool_state,
    /*LEVEL_CMD_POP_POOL_STATE              */ level_cmd_pop_pool_state,
    /*LEVEL_CMD_LOAD_TO_FIXED_ADDRESS       */ level_cmd_load_to_fixed_address,
    /*LEVEL_CMD_LOAD_RAW                    */ level_cmd_load_raw,
    /*LEVEL_CMD_LOAD_YAY0                   */ level_cmd_load_yay0,
    /*LEVEL_CMD_LOAD_MARIO_HEAD             */ level_cmd_load_mario_head,
    /*LEVEL_CMD_LOAD_YAY0_TEXTURE           */ level_cmd_load_yay0_texture,
    /*LEVEL_CMD_INIT_LEVEL                  */ level_cmd_init_level,
    /*LEVEL_CMD_CLEAR_LEVEL                 */ level_cmd_clear_level,
    /*LEVEL_CMD_ALLOC_LEVEL_POOL            */ level_cmd_alloc_level_pool,
    /*LEVEL_CMD_FREE_LEVEL_POOL             */ level_cmd_free_level_pool,
    /*LEVEL_CMD_BEGIN_AREA                  */ level_cmd_begin_area,
    /*LEVEL_CMD_END_AREA                    */ level_cmd_end_area,
    /*LEVEL_CMD_LOAD_MODEL_FROM_DL          */ level_cmd_load_model_from_dl,
    /*LEVEL_CMD_LOAD_MODEL_FROM_GEO         */ level_cmd_load_model_from_geo,
    /*LEVEL_CMD_23                          */ level_cmd_23,
    /*LEVEL_CMD_PLACE_OBJECT                */ level_cmd_place_object,
    /*LEVEL_CMD_INIT_MARIO                  */ level_cmd_init_mario,
    /*LEVEL_CMD_CREATE_WARP_NODE            */ level_cmd_create_warp_node,
    /*LEVEL_CMD_CREATE_PAINTING_WARP_NODE   */ level_cmd_create_painting_warp_node,
    /*LEVEL_CMD_CREATE_INSTANT_WARP         */ level_cmd_create_instant_warp,
    /*LEVEL_CMD_LOAD_AREA                   */ level_cmd_load_area,
    /*LEVEL_CMD_UNLOAD_AREA                 */ level_cmd_unload_area,
    /*LEVEL_CMD_SET_MARIO_START_POS         */ level_cmd_set_mario_start_pos,
    /*LEVEL_CMD_UNLOAD_MARIO_AREA           */ level_cmd_unload_mario_area,
    /*LEVEL_CMD_UPDATE_OBJECTS              */ level_cmd_update_objects,
    /*LEVEL_CMD_SET_TERRAIN_DATA            */ level_cmd_set_terrain_data,
    /*LEVEL_CMD_SET_ROOMS                   */ level_cmd_set_rooms,
    /*LEVEL_CMD_SHOW_DIALOG                 */ level_cmd_show_dialog,
    /*LEVEL_CMD_SET_TERRAIN_TYPE            */ level_cmd_set_terrain_type,
    /*LEVEL_CMD_NOP                         */ level_cmd_nop,
    /*LEVEL_CMD_SET_TRANSITION              */ level_cmd_set_transition,
    /*LEVEL_CMD_SET_BLACKOUT                */ level_cmd_set_blackout,
    /*LEVEL_CMD_SET_GAMMA                   */ level_cmd_set_gamma,
    /*LEVEL_CMD_SET_MUSIC                   */ level_cmd_set_music,
    /*LEVEL_CMD_SET_MENU_MUSIC              */ level_cmd_set_menu_music,
    /*LEVEL_CMD_FADEOUT_MUSIC               */ level_cmd_fadeout_music,
    /*LEVEL_CMD_SET_MACRO_OBJECTS           */ level_cmd_set_macro_objects,
    /*LEVEL_CMD_3A                          */ level_cmd_3A,
    /*LEVEL_CMD_CREATE_WHIRLPOOL            */ level_cmd_create_whirlpool,
    /*LEVEL_CMD_GET_OR_SET_VAR              */ level_cmd_get_or_set_var,
    /*LEVEL_CMD_PUPPYVOLUME                 */ level_cmd_puppyvolume,
    /*LEVEL_CMD_CHANGE_AREA_SKYBOX          */ level_cmd_change_area_skybox,
    /*LEVEL_CMD_SET_ECHO                    */ level_cmd_set_echo,
};

struct LevelCommand *level_script_execute(struct LevelCommand *cmd) {
    sScriptStatus = SCRIPT_RUNNING;
    sCurrentCmd = cmd;

    while (sScriptStatus == SCRIPT_RUNNING) {
        LevelScriptJumpTable[sCurrentCmd->type]();
    }

    init_rcp(CLEAR_ZBUFFER);
    render_game();
    end_master_display_list();
    alloc_display_list(0);

    return sCurrentCmd;
}