OpenRaider/src/Game.cpp

/*!
 * \file src/Game.cpp
 * \brief Game abstraction
 *
 * \author xythobuz
 */

#include <algorithm>
#include <map>
#include <cstdlib>

#include "global.h"
#include "Console.h"
#include "Game.h"
#include "OpenRaider.h"
#include "Sound.h"
#include "StaticMesh.h"
#include "utils/strings.h"

#include "games/TombRaider1.h"

#ifdef MULTITEXTURE
std::map<int, int> gMapTex2Bump;
#endif

Game::Game() {
    mLoaded = false;
    mName = NULL;
    mLara = -1;
    mTextureStart = 0;
    mTextureOffset = 0;
}

Game::~Game() {
    destroy();
}

unsigned int Game::getTextureStart() {
    return mTextureStart;
}

unsigned int Game::getTextureOffset() {
    return mTextureOffset;
}

int Game::initialize() {
    // Enable Renderer
    mTextureStart = getRender().initTextures(getOpenRaider().mDataDir);
    getRender().setMode(Render::modeLoadScreen);

    return 0;
}

void Game::destroy() {
    delete [] mName;
    mName = NULL;

    mLoaded = false;
    mLara = -1;
    getRender().setMode(Render::modeDisabled);

    getWorld().destroy();
    getRender().ClearWorld();
    getSound().clear(); // Remove all previously loaded sounds
}

bool Game::isLoaded() {
    return mLoaded;
}

int Game::loadLevel(const char *level) {
    if (mLoaded)
        destroy();

    mName = bufferString("%s", level);

    getConsole().print("Loading %s", mName);
    int error = mTombRaider.Load(mName);
    if (error != 0)
        return error;

    // If required, load the external sound effect file MAIN.SFX into TombRaider
    if ((mTombRaider.getEngine() == TR_VERSION_2) || (mTombRaider.getEngine() == TR_VERSION_3)) {
        char *tmp = bufferString("%sMAIN.SFX", level); // Ensure theres enough space
        size_t length = strlen(tmp);
        size_t dir = 0;
        for (int i = length - 1; i >= 0; i--) {
            if ((tmp[i] == '/') || (tmp[i] == '\\')) {
                dir = i + 1; // Find where the filename (bla.tr2) starts
                break;
            }
        }
        strcpy(tmp + dir, "MAIN.SFX"); // overwrite the name itself with MAIN.SFX
        tmp[dir + 8] = '\0';
        error = mTombRaider.loadSFX(tmp);
        if (error != 0)
            getConsole().print("Could not load %s", tmp);
        delete [] tmp;
    }

    // Process data
    processTextures();
    processRooms();
    processModels();
    processSprites();
    processMoveables();
    processPakSounds();

    mTombRaider.reset();

    if (mLara == -1) {
        getConsole().print("Can't find Lara entity in level pak!");
        destroy();
        return -1;
    } else {
        mLoaded = true;
        getRender().setMode(Render::modeVertexLight);
        return 0;
    }
}

void Game::handleAction(ActionEvents action, bool isFinished) {
    if (mLoaded && (!isFinished)) {
        if (action == forwardAction) {
            getLara().move('f');
        } else if (action == backwardAction) {
            getLara().move('b');
        } else if (action == leftAction) {
            getLara().move('l');
        } else if (action == rightAction) {
            getLara().move('r');
        } else if (action == jumpAction) {

        } else if (action == crouchAction) {

        } else if (action == useAction) {

        } else if (action == holsterAction) {

        } else if (action == walkAction) {

        }
    }
}

void Game::handleMouseMotion(int xrel, int yrel) {
    if (mLoaded) {
        // Move Camera on X Axis
        if (xrel > 0)
            while (xrel-- > 0)
                getCamera().command(CAMERA_ROTATE_RIGHT);
        else if (xrel < 0)
            while (xrel++ < 0)
                getCamera().command(CAMERA_ROTATE_LEFT);

        // Move Camera on Y Axis
        if (yrel > 0)
            while (yrel-- > 0)
                getCamera().command(CAMERA_ROTATE_UP);
        else if (yrel < 0)
            while (yrel++ < 0)
                getCamera().command(CAMERA_ROTATE_DOWN);

        // Fix Laras rotation
        getLara().setAngle(getCamera().getRadianYaw());
    }
}

Entity &Game::getLara() {
    assert(mLara >= 0);
    assert(mLara < (int)getWorld().sizeEntity());
    return getWorld().getEntity(mLara);
}

void Game::processSprites() {
    for (int i = 0; i < (mTombRaider.NumItems() - 1); i++) {
        if ((mTombRaider.Engine() == TR_VERSION_1) && (mTombRaider.Item()[i].intensity1 == -1))
            continue;

        for (int j = 0; j < mTombRaider.NumSpriteSequences(); j++) {
            if (mTombRaider.SpriteSequence()[j].object_id == mTombRaider.Item()[i].object_id)
                getWorld().addSprite(*new SpriteSequence(mTombRaider, i, j));
        }
    }

    getConsole().print("Found %d sprites.", mTombRaider.NumSpriteSequences());
}

void Game::processRooms() {
    for (int index = 0; index < mTombRaider.NumRooms(); index++)
        getWorld().addRoom(*new Room(mTombRaider, index));

    getConsole().print("Found %d rooms.", mTombRaider.NumRooms());
}

void Game::processModels() {
    for (int index = 0; index < mTombRaider.getMeshCount(); index++)
        getWorld().addStaticMesh(*new StaticMesh(mTombRaider, index));

    getConsole().print("Found %d meshes.", mTombRaider.getMeshCount());
}

void Game::processPakSounds()
{
    unsigned char *riff;
    unsigned int riffSz;
    //tr2_sound_source_t *sound;
    //tr2_sound_details_t *detail;
    //float pos[3];
    unsigned int i;
    int id;

    /* detail
       short sample;
       short volume;
       short sound_range;
       short flags;         // bits 8-15: priority?, 2-7: number of sound samples
    // in this group, bits 0-1: channel number
    */

    for (i = 0; i < mTombRaider.getSoundSamplesCount(); ++i)
    {
        mTombRaider.getSoundSample(i, &riffSz, &riff);

        getSound().addWave(riff, riffSz, &id, Sound::SoundFlagsNone);

        //if (((i + 1) == TR_SOUND_F_PISTOL) && (id > 0))
        //{
            //m_testSFX = id;
        //}

        delete [] riff;

        // sound[i].sound_id; // internal sound index
        // sound[i].flags;  // 0x40, 0x80, or 0xc0
        //pos[0] = sound[i].x;
        //pos[1] = sound[i].y;
        //pos[2] = sound[i].z;
        //getSound().SourceAt(id, pos);
    }

    getConsole().print("Found %u sound samples.", mTombRaider.getSoundSamplesCount());
}

void Game::processTextures()
{
    unsigned char *image;
    unsigned char *bumpmap;
    int i;

    //if ( mTombRaider.getNumBumpMaps())
    //  gBumpMapStart = mTombRaider.NumTextures();

    for (i = 0; i < mTombRaider.NumTextures(); ++i)
    {
        mTombRaider.Texture(i, &image, &bumpmap);

        // Overwrite any previous level textures on load
        getRender().loadTexture(image, 256, 256, (mTextureStart - 1) + i);

#ifdef MULTITEXTURE
        gMapTex2Bump[(mTextureStart - 1) + i] = -1;
#endif

        if (bumpmap)
        {
#ifdef MULTITEXTURE
            gMapTex2Bump[(mTextureStart - 1) + i] = (mTextureStart - 1) + i +
                    mTombRaider.NumTextures();
#endif
            getRender().loadTexture(bumpmap, 256, 256, (mTextureStart - 1) + i +
                    mTombRaider.NumTextures());
        }

        if (image)
            delete [] image;

        if (bumpmap)
            delete [] bumpmap;
    }

    mTextureOffset = (mTextureStart - 1) + mTombRaider.NumTextures();

    getConsole().print("Found %d textures.", mTombRaider.NumTextures());
}

void Game::processMoveables()
{
    unsigned int statCount = 0;

    tr2_moveable_t *moveable = mTombRaider.Moveable();
    tr2_item_t *item = mTombRaider.Item();
    tr2_sprite_sequence_t *sprite_sequence = mTombRaider.SpriteSequence();

    for (int i = 0; i < mTombRaider.NumItems(); ++i)
    {
        int j;
        int object_id = item[i].object_id;

        // It may not be a moveable, test for sprite
        if (!(mTombRaider.Engine() == TR_VERSION_1 && item[i].intensity1 == -1)) {
            for (j = 0; j < (int)mTombRaider.NumSpriteSequences(); ++j) {
                if (sprite_sequence[j].object_id == object_id)
                    break;
            }

            // It's not a moveable, skip sprite
            if (j < (int)mTombRaider.NumSpriteSequences())
                continue;
        }

        for (j = 0; j < (int)mTombRaider.NumMoveables(); ++j) {
            if ((int)moveable[j].object_id == object_id)
                break;
        }

        // It's not a moveable or even a sprite? Skip unknown
        if (j == (int)mTombRaider.NumMoveables())
            continue;

        processMoveable(j, i, object_id);
        statCount++;
    }

    /*
    // Get models that aren't items
    for (int i = 0; i < mTombRaider.NumMoveables(); ++i)
    {
        switch ((int)moveable[i].object_id)
        {
            case 30:
            case 2: // Which tr needs this as model again?
                processMoveable(i, i, (int)moveable[i].object_id);
                break;
            default:
                switch (mTombRaider.Engine())
                {
                    case TR_VERSION_1:
                        switch ((int)moveable[i].object_id)
                        {
                            case TombRaider1::LaraMutant:
                                processMoveable(i, i, (int)moveable[i].object_id);
                                break;
                        }
                        break;
                    case TR_VERSION_4:
                        switch ((int)moveable[i].object_id)
                        {
                            case TR4_PISTOLS_ANIM:
                            case TR4_UZI_ANIM:
                            case TR4_SHOTGUN_ANIM:
                            case TR4_CROSSBOW_ANIM:
                            case TR4_GRENADE_GUN_ANIM:
                            case TR4_SIXSHOOTER_ANIM:
                                processMoveable(i, i, (int)moveable[i].object_id);
                                break;
                        }
                        break;
                    case TR_VERSION_2:
                    case TR_VERSION_3:
                    case TR_VERSION_5:
                    case TR_VERSION_UNKNOWN:
                        break;
                }
        }
    }
    */

    getConsole().print("Found %d moveables.", mTombRaider.NumMoveables() + statCount);
}

// index moveable, i item, sometimes both moveable
// object_id of item or moveable
void Game::processMoveable(int index, int i, int object_id) {
    // Check if the SkeletalModel is already cached
    bool cached = false;
    unsigned int model;
    for (model = 0; model < getWorld().sizeSkeletalModel(); model++) {
        if (getWorld().getSkeletalModel(model).getId() == object_id) {
            cached = true;
            break;
        }
    }

    // Create a new SkeletalModel, if needed
    if (!cached)
        getWorld().addSkeletalModel(*new SkeletalModel(mTombRaider, index, object_id));

    // Create a new Entity, using the cached or the new SkeletalModel
    Entity &entity = *new Entity(mTombRaider, index, i, model);
    getWorld().addEntity(entity);

    // Store reference to Lara
    if (entity.getObjectId() == 0)
        mLara = getWorld().sizeEntity() - 1;

    // Store reference to the SkyMesh
    if (i == mTombRaider.getSkyModelId())
        getRender().setSkyMesh(i, //moveable[i].starting_mesh,
                (mTombRaider.Engine() == TR_VERSION_2));
}