modeldb.cpp

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#include "modeldb.h"
 
DECOMP_SIZE_ASSERT(ModelDbWorld, 0x18)
DECOMP_SIZE_ASSERT(ModelDbPart, 0x18)
DECOMP_SIZE_ASSERT(ModelDbModel, 0x38)
DECOMP_SIZE_ASSERT(ModelDbPartList, 0x1c)
DECOMP_SIZE_ASSERT(ModelDbPartListCursor, 0x10)
 
// FUNCTION: LEGO1 0x10027690
// FUNCTION: BETA10 0x100e5620
void ModelDbModel::Free()
{
    delete[] m_modelName;
    delete[] m_presenterName;
}
 
// FUNCTION: LEGO1 0x100276b0
MxResult ModelDbModel::Read(FILE* p_file)
{
    MxU32 len;
 
    if (fread(&len, sizeof(len), 1, p_file) != 1) {
        return FAILURE;
    }
 
    m_modelName = new char[len];
    if (fread(m_modelName, len, 1, p_file) != 1) {
        return FAILURE;
    }
 
    if (fread(&m_modelDataLength, sizeof(m_modelDataLength), 1, p_file) != 1) {
        return FAILURE;
    }
    if (fread(&m_modelDataOffset, sizeof(m_modelDataOffset), 1, p_file) != 1) {
        return FAILURE;
    }
    if (fread(&len, sizeof(len), 1, p_file) != 1) {
        return FAILURE;
    }
 
    m_presenterName = new char[len];
    if (fread(m_presenterName, len, 1, p_file) != 1) {
        return FAILURE;
    }
 
    if (fread(&m_location, sizeof(*m_location), 3, p_file) != 3) {
        return FAILURE;
    }
    if (fread(&m_direction, sizeof(*m_direction), 3, p_file) != 3) {
        return FAILURE;
    }
    if (fread(&m_up, sizeof(*m_up), 3, p_file) != 3) {
        return FAILURE;
    }
    if (fread(&m_unk0x34, sizeof(m_unk0x34), 1, p_file) != 1) {
        return FAILURE;
    }
 
    return SUCCESS;
}
 
// FUNCTION: LEGO1 0x10027850
MxResult ModelDbPart::Read(FILE* p_file)
{
    MxU32 len;
    char buff[128];
 
    if (fread(&len, sizeof(len), 1, p_file) != 1) {
        return FAILURE;
    }
 
    // (modernization) critical bug: buffer overrun
    if (fread(buff, len, 1, p_file) != 1) {
        return FAILURE;
    }
 
    m_roiName = buff;
 
    if (fread(&m_partDataLength, sizeof(m_partDataLength), 1, p_file) != 1) {
        return FAILURE;
    }
    if (fread(&m_partDataOffset, sizeof(m_partDataOffset), 1, p_file) != 1) {
        return FAILURE;
    }
 
    return SUCCESS;
}
 
// FUNCTION: LEGO1 0x10027910
MxResult ReadModelDbWorlds(FILE* p_file, ModelDbWorld*& p_worlds, MxS32& p_numWorlds)
{
    p_worlds = NULL;
    p_numWorlds = 0;
 
    MxS32 numWorlds;
    if (fread(&numWorlds, sizeof(numWorlds), 1, p_file) != 1) {
        return FAILURE;
    }
 
    ModelDbWorld* worlds = new ModelDbWorld[numWorlds];
    MxS32 worldNameLen, numParts, i, j;
 
    for (i = 0; i < numWorlds; i++) {
        if (fread(&worldNameLen, sizeof(worldNameLen), 1, p_file) != 1) {
            return FAILURE;
        }
 
        worlds[i].m_worldName = new char[worldNameLen];
        if (fread(worlds[i].m_worldName, worldNameLen, 1, p_file) != 1) {
            return FAILURE;
        }
 
        if (fread(&numParts, sizeof(numParts), 1, p_file) != 1) {
            return FAILURE;
        }
 
        worlds[i].m_partList = new ModelDbPartList();
 
        for (j = 0; j < numParts; j++) {
            ModelDbPart* part = new ModelDbPart();
 
            if (part->Read(p_file) != SUCCESS) {
                return FAILURE;
            }
 
            worlds[i].m_partList->Append(part);
        }
 
        if (fread(&worlds[i].m_numModels, sizeof(worlds[i].m_numModels), 1, p_file) != 1) {
            return FAILURE;
        }
 
        worlds[i].m_models = new ModelDbModel[worlds[i].m_numModels];
 
        for (j = 0; j < worlds[i].m_numModels; j++) {
            if (worlds[i].m_models[j].Read(p_file) != SUCCESS) {
                return FAILURE;
            }
        }
    }
 
    p_worlds = worlds;
    p_numWorlds = numWorlds;
    return SUCCESS;
}
 
// FUNCTION: LEGO1 0x10028080
// FUNCTION: BETA10 0x100e6431
void FreeModelDbWorlds(ModelDbWorld*& p_worlds, MxS32 p_numWorlds)
{
    ModelDbWorld* worlds = p_worlds;
 
    for (MxS32 i = 0; i < p_numWorlds; i++) {
        delete[] worlds[i].m_worldName;
 
        ModelDbPartListCursor cursor(worlds[i].m_partList);
        ModelDbPart* part;
 
        while (cursor.Next(part)) {
            delete part;
        }
 
        delete worlds[i].m_partList;
 
        ModelDbModel* models = worlds[i].m_models;
        for (MxS32 j = 0; j < worlds[i].m_numModels; j++) {
            models[j].Free();
        }
 
        delete[] worlds[i].m_models;
    }
 
    delete[] p_worlds;
    p_worlds = NULL;
}