Exemple #1
0
/** Updates the physics simulation and handles all collisions.
 *  \param ticks Number of physics steps to simulate.
 */
void Physics::update(int ticks)
{
    PROFILER_PUSH_CPU_MARKER("Physics", 0, 0, 0);

    m_physics_loop_active = true;
    // Bullet can report the same collision more than once (up to 4
    // contact points per collision). Additionally, more than one internal
    // substep might be taken, resulting in potentially even more
    // duplicates. To handle this, all collisions (i.e. pair of objects)
    // are stored in a vector, but only one entry per collision pair
    // of objects.
    m_all_collisions.clear();

    // Since the world update (which calls physics update) is called at the
    // fixed frequency necessary for the physics update, we need to do exactly
    // one physic step only.
    double start;
    if(UserConfigParams::m_physics_debug) start = StkTime::getRealTime();

    m_dynamics_world->stepSimulation(stk_config->ticks2Time(1), 1,
                                     stk_config->ticks2Time(1)      );
    if (UserConfigParams::m_physics_debug)
    {
        Log::verbose("Physics", "At %d physics duration %12.8f",
                     World::getWorld()->getTicksSinceStart(),
                     StkTime::getRealTime() - start);
    }

    // Now handle the actual collision. Note: flyables can not be removed
    // inside of this loop, since the same flyables might hit more than one
    // other object. So only a flag is set in the flyables, the actual
    // clean up is then done later in the projectile manager.
    std::vector<CollisionPair>::iterator p;
    for(p=m_all_collisions.begin(); p!=m_all_collisions.end(); ++p)
    {
        // Kart-kart collision
        // --------------------
        if(p->getUserPointer(0)->is(UserPointer::UP_KART))
        {
            KartKartCollision(p->getUserPointer(0)->getPointerKart(),
                              p->getContactPointCS(0),
                              p->getUserPointer(1)->getPointerKart(),
                              p->getContactPointCS(1)                );
            Scripting::ScriptEngine* script_engine =
                                            Scripting::ScriptEngine::getInstance();
            int kartid1 = p->getUserPointer(0)->getPointerKart()->getWorldKartId();
            int kartid2 = p->getUserPointer(1)->getPointerKart()->getWorldKartId();
            script_engine->runFunction(false, "void onKartKartCollision(int, int)",
                [=](asIScriptContext* ctx) {
                    ctx->SetArgDWord(0, kartid1);
                    ctx->SetArgDWord(1, kartid2);
                });
            continue;
        }  // if kart-kart collision

        if(p->getUserPointer(0)->is(UserPointer::UP_PHYSICAL_OBJECT))
        {
            // Kart hits physical object
            // -------------------------
            Scripting::ScriptEngine* script_engine = Scripting::ScriptEngine::getInstance();
            AbstractKart *kart = p->getUserPointer(1)->getPointerKart();
            int kartId = kart->getWorldKartId();
            PhysicalObject* obj = p->getUserPointer(0)->getPointerPhysicalObject();
            std::string obj_id = obj->getID();
            std::string scripting_function = obj->getOnKartCollisionFunction();

            TrackObject* to = obj->getTrackObject();
            TrackObject* library = to->getParentLibrary();
            std::string lib_id;
            std::string* lib_id_ptr = NULL;
            if (library != NULL)
                lib_id = library->getID();
            lib_id_ptr = &lib_id;

            if (scripting_function.size() > 0)
            {
                script_engine->runFunction(true, "void " + scripting_function + "(int, const string, const string)",
                    [&](asIScriptContext* ctx) {
                        ctx->SetArgDWord(0, kartId);
                        ctx->SetArgObject(1, lib_id_ptr);
                        ctx->SetArgObject(2, &obj_id);
                    });
            }
            if (obj->isCrashReset())
            {
                new RescueAnimation(kart);
            }
            else if (obj->isExplodeKartObject())
            {
                ExplosionAnimation::create(kart);
                if (kart->getKartAnimation() != NULL)
                {
                    World::getWorld()->kartHit(kart->getWorldKartId());
                }
            }
            else if (obj->isFlattenKartObject())
            {
                const KartProperties *kp = kart->getKartProperties();
                // Count squash only once from original state
                bool was_squashed = kart->isSquashed();
                if (kart->setSquash(kp->getSwatterSquashDuration(),
                    kp->getSwatterSquashSlowdown()) && !was_squashed)
                {
                    World::getWorld()->kartHit(kart->getWorldKartId());
                }
            }
            else if(obj->isSoccerBall() && 
                    race_manager->getMinorMode() == RaceManager::MINOR_MODE_SOCCER)
            {
                SoccerWorld* soccerWorld = (SoccerWorld*)World::getWorld();
                soccerWorld->setBallHitter(kartId);
            }
            continue;
        }

        if (p->getUserPointer(0)->is(UserPointer::UP_ANIMATION))
        {
            // Kart hits animation
            ThreeDAnimation *anim=p->getUserPointer(0)->getPointerAnimation();
            if(anim->isCrashReset())
            {
                AbstractKart *kart = p->getUserPointer(1)->getPointerKart();
                new RescueAnimation(kart);
            }
            else if (anim->isExplodeKartObject())
            {
                AbstractKart *kart = p->getUserPointer(1)->getPointerKart();
                ExplosionAnimation::create(kart);
                if (kart->getKartAnimation() != NULL)
                {
                    World::getWorld()->kartHit(kart->getWorldKartId());
                }
            }
            else if (anim->isFlattenKartObject())
            {
                AbstractKart *kart = p->getUserPointer(1)->getPointerKart();
                const KartProperties *kp = kart->getKartProperties();

                // Count squash only once from original state
                bool was_squashed = kart->isSquashed();
                if (kart->setSquash(kp->getSwatterSquashDuration(),
                    kp->getSwatterSquashSlowdown()) && !was_squashed)
                {
                    World::getWorld()->kartHit(kart->getWorldKartId());
                }

            }
            continue;

        }
        // now the first object must be a projectile
        // =========================================
        if(p->getUserPointer(1)->is(UserPointer::UP_TRACK))
        {
            // Projectile hits track
            // ---------------------
            p->getUserPointer(0)->getPointerFlyable()->hitTrack();
        }
        else if(p->getUserPointer(1)->is(UserPointer::UP_PHYSICAL_OBJECT))
        {
            // Projectile hits physical object
            // -------------------------------
            Scripting::ScriptEngine* script_engine = Scripting::ScriptEngine::getInstance();
            Flyable* flyable = p->getUserPointer(0)->getPointerFlyable();
            PhysicalObject* obj = p->getUserPointer(1)->getPointerPhysicalObject();
            std::string obj_id = obj->getID();
            std::string scripting_function = obj->getOnItemCollisionFunction();
            if (scripting_function.size() > 0)
            {
                script_engine->runFunction(true, "void " + scripting_function + "(int, int, const string)",
                        [&](asIScriptContext* ctx) {
                        ctx->SetArgDWord(0, (int)flyable->getType());
                        ctx->SetArgDWord(1, flyable->getOwnerId());
                        ctx->SetArgObject(2, &obj_id);
                    });
            }
            flyable->hit(NULL, obj);

            if (obj->isSoccerBall() && 
                race_manager->getMinorMode() == RaceManager::MINOR_MODE_SOCCER)
            {
                int kartId = p->getUserPointer(0)->getPointerFlyable()->getOwnerId();
                SoccerWorld* soccerWorld = (SoccerWorld*)World::getWorld();
                soccerWorld->setBallHitter(kartId);
            }

        }
        else if(p->getUserPointer(1)->is(UserPointer::UP_KART))
        {
            // Projectile hits kart
            // --------------------
            // Only explode a bowling ball if the target is
            // not invulnerable
            AbstractKart* target_kart = p->getUserPointer(1)->getPointerKart();
            PowerupManager::PowerupType type = p->getUserPointer(0)->getPointerFlyable()->getType();
            if(type != PowerupManager::POWERUP_BOWLING || !target_kart->isInvulnerable())
            {
                Flyable *f = p->getUserPointer(0)->getPointerFlyable();
                f->hit(target_kart);

                // Check for achievements
                AbstractKart * kart = World::getWorld()->getKart(f->getOwnerId());
                LocalPlayerController *lpc =
                    dynamic_cast<LocalPlayerController*>(kart->getController());

                // Check that it's not a kart hitting itself (this can
                // happen at the time a flyable is shot - release too close
                // to the kart, and it's the current player. At this stage
                // only the current player can get achievements.
                if (target_kart != kart && lpc && lpc->canGetAchievements())
                {
                    if (type == PowerupManager::POWERUP_BOWLING)
                    {
                        PlayerManager::increaseAchievement(AchievementsStatus::BOWLING_HIT, 1);
                        if (race_manager->isLinearRaceMode())
                            PlayerManager::increaseAchievement(AchievementsStatus::BOWLING_HIT_1RACE, 1);
                    }   // is bowling ball
                }   // if target_kart != kart && is a player kart and is current player
            }

        }
        else
        {
            // Projectile hits projectile
            // --------------------------
            p->getUserPointer(0)->getPointerFlyable()->hit(NULL);
            p->getUserPointer(1)->getPointerFlyable()->hit(NULL);
        }
    }  // for all p in m_all_collisions

    m_physics_loop_active = false;
    // Now remove the karts that were removed while the above loop
    // was active. Now we can safely call removeKart, since the loop
    // is finished and m_physics_world_active is not set anymore.
    for(unsigned int i=0; i<m_karts_to_delete.size(); i++)
        removeKart(m_karts_to_delete[i]);
    m_karts_to_delete.clear();

    PROFILER_POP_CPU_MARKER();
}   // update
Exemple #2
0
/** Updates the physics simulation and handles all collisions.
 *  \param dt Time step.
 */
void Physics::update(float dt)
{
    PROFILER_PUSH_CPU_MARKER("Physics", 0, 0, 0);

    m_physics_loop_active = true;
    // Bullet can report the same collision more than once (up to 4
    // contact points per collision). Additionally, more than one internal
    // substep might be taken, resulting in potentially even more
    // duplicates. To handle this, all collisions (i.e. pair of objects)
    // are stored in a vector, but only one entry per collision pair
    // of objects.
    m_all_collisions.clear();

    // Maximum of three substeps. This will work for framerate down to
    // 20 FPS (bullet default frequency is 60 HZ).
    m_dynamics_world->stepSimulation(dt, 3);

    // Now handle the actual collision. Note: flyables can not be removed
    // inside of this loop, since the same flyables might hit more than one
    // other object. So only a flag is set in the flyables, the actual
    // clean up is then done later in the projectile manager.
    std::vector<CollisionPair>::iterator p;
    for(p=m_all_collisions.begin(); p!=m_all_collisions.end(); ++p)
    {
        // Kart-kart collision
        // --------------------
        if(p->getUserPointer(0)->is(UserPointer::UP_KART))
        {
            KartKartCollision(p->getUserPointer(0)->getPointerKart(),
                              p->getContactPointCS(0),
                              p->getUserPointer(1)->getPointerKart(),
                              p->getContactPointCS(1)                );
            Scripting::ScriptEngine* script_engine = World::getWorld()->getScriptEngine();
            int kartid1 = p->getUserPointer(0)->getPointerKart()->getWorldKartId();
            int kartid2 = p->getUserPointer(1)->getPointerKart()->getWorldKartId();
            script_engine->runFunction(false, "void onKartKartCollision(int, int)",
                [=](asIScriptContext* ctx) {
                    ctx->SetArgDWord(0, kartid1);
                    ctx->SetArgDWord(1, kartid2);
                });
            continue;
        }  // if kart-kart collision

        if(p->getUserPointer(0)->is(UserPointer::UP_PHYSICAL_OBJECT))
        {
            // Kart hits physical object
            // -------------------------
            Scripting::ScriptEngine* script_engine = World::getWorld()->getScriptEngine();
            AbstractKart *kart = p->getUserPointer(1)->getPointerKart();
            int kartId = kart->getWorldKartId();
            PhysicalObject* obj = p->getUserPointer(0)->getPointerPhysicalObject();
            std::string obj_id = obj->getID();
            std::string scripting_function = obj->getOnKartCollisionFunction();

            TrackObject* to = obj->getTrackObject();
            TrackObject* library = to->getParentLibrary();
            std::string lib_id;
            std::string* lib_id_ptr = NULL;
            if (library != NULL)
                lib_id = library->getID();
            lib_id_ptr = &lib_id;

            if (scripting_function.size() > 0)
            {
                script_engine->runFunction(true, "void " + scripting_function + "(int, const string, const string)",
                    [&](asIScriptContext* ctx) {
                        ctx->SetArgDWord(0, kartId);
                        ctx->SetArgObject(1, lib_id_ptr);
                        ctx->SetArgObject(2, &obj_id);
                    });
            }
            if (obj->isCrashReset())
            {
                new RescueAnimation(kart);
            }
            else if (obj->isExplodeKartObject())
            {
                ExplosionAnimation::create(kart);
            }
            else if (obj->isFlattenKartObject())
            {
                const KartProperties *kp = kart->getKartProperties();
                kart->setSquash(kp->getSwatterSquashDuration(),
                    kp->getSwatterSquashSlowdown());
            }
            else if(obj->isSoccerBall() && 
                    race_manager->getMinorMode() == RaceManager::MINOR_MODE_SOCCER)
            {
                SoccerWorld* soccerWorld = (SoccerWorld*)World::getWorld();
                soccerWorld->setLastKartTohitBall(kartId);
            }
            continue;
        }

        if (p->getUserPointer(0)->is(UserPointer::UP_ANIMATION))
        {
            // Kart hits animation
            ThreeDAnimation *anim=p->getUserPointer(0)->getPointerAnimation();
            if(anim->isCrashReset())
            {
                AbstractKart *kart = p->getUserPointer(1)->getPointerKart();
                new RescueAnimation(kart);
            }
            else if (anim->isExplodeKartObject())
            {
                AbstractKart *kart = p->getUserPointer(1)->getPointerKart();
                ExplosionAnimation::create(kart);
            }
            else if (anim->isFlattenKartObject())
            {
                AbstractKart *kart = p->getUserPointer(1)->getPointerKart();
                const KartProperties *kp = kart->getKartProperties();
                kart->setSquash(kp->getSwatterSquashDuration(),
                    kp->getSwatterSquashSlowdown());
            }
            continue;

        }
        // now the first object must be a projectile
        // =========================================
        if(p->getUserPointer(1)->is(UserPointer::UP_TRACK))
        {
            // Projectile hits track
            // ---------------------
            p->getUserPointer(0)->getPointerFlyable()->hitTrack();
        }
        else if(p->getUserPointer(1)->is(UserPointer::UP_PHYSICAL_OBJECT))
        {
            // Projectile hits physical object
            // -------------------------------
            Scripting::ScriptEngine* script_engine = World::getWorld()->getScriptEngine();
            Flyable* flyable = p->getUserPointer(0)->getPointerFlyable();
            PhysicalObject* obj = p->getUserPointer(1)->getPointerPhysicalObject();
            std::string obj_id = obj->getID();
            std::string scripting_function = obj->getOnItemCollisionFunction();
            if (scripting_function.size() > 0)
            {
                script_engine->runFunction(true, "void " + scripting_function + "(int, int, const string)",
                        [&](asIScriptContext* ctx) {
                        ctx->SetArgDWord(0, (int)flyable->getType());
                        ctx->SetArgDWord(1, flyable->getOwnerId());
                        ctx->SetArgObject(2, &obj_id);
                    });
            }
            flyable->hit(NULL, obj);

            if (obj->isSoccerBall() && 
                race_manager->getMinorMode() == RaceManager::MINOR_MODE_SOCCER)
            {
                int kartId = p->getUserPointer(0)->getPointerFlyable()->getOwnerId();
                SoccerWorld* soccerWorld = (SoccerWorld*)World::getWorld();
                soccerWorld->setLastKartTohitBall(kartId);
            }

        }
        else if(p->getUserPointer(1)->is(UserPointer::UP_KART))
        {
            // Projectile hits kart
            // --------------------
            // Only explode a bowling ball if the target is
            // not invulnerable
            AbstractKart* target_kart = p->getUserPointer(1)->getPointerKart();
            PowerupManager::PowerupType type = p->getUserPointer(0)->getPointerFlyable()->getType();
            if(type != PowerupManager::POWERUP_BOWLING || !target_kart->isInvulnerable())
            {
                Flyable *f = p->getUserPointer(0)->getPointerFlyable();
                f->hit(target_kart);

                // Check for achievements
                AbstractKart * kart = World::getWorld()->getKart(f->getOwnerId());
                LocalPlayerController *c =
                    dynamic_cast<LocalPlayerController*>(kart->getController());

                // Check that it's not a kart hitting itself (this can
                // happen at the time a flyable is shot - release too close
                // to the kart, and it's the current player. At this stage
                // only the current player can get achievements.
                if (target_kart != kart && c &&
                    c->getPlayer()->getConstProfile() == PlayerManager::getCurrentPlayer())
                {
                    // Compare the current value of hits with the 'hit' goal value
                    // (otherwise it would be compared with the kart id goal value,
                    // which doesn't exist.
                    PlayerManager::increaseAchievement(AchievementInfo::ACHIEVE_ARCH_ENEMY,
                                                       target_kart->getIdent(), 1, "hit");
                    if (type == PowerupManager::POWERUP_BOWLING)
                    {
                        PlayerManager::increaseAchievement(AchievementInfo::ACHIEVE_STRIKE,
                                                          "ball", 1);
                    }   // is bowling ball
                }   // if target_kart != kart && is a player kart and is current player
            }

        }
        else
        {
            // Projectile hits projectile
            // --------------------------
            p->getUserPointer(0)->getPointerFlyable()->hit(NULL);
            p->getUserPointer(1)->getPointerFlyable()->hit(NULL);
        }
    }  // for all p in m_all_collisions

    m_physics_loop_active = false;
    // Now remove the karts that were removed while the above loop
    // was active. Now we can safely call removeKart, since the loop
    // is finished and m_physics_world_active is not set anymore.
    for(unsigned int i=0; i<m_karts_to_delete.size(); i++)
        removeKart(m_karts_to_delete[i]);
    m_karts_to_delete.clear();

    PROFILER_POP_CPU_MARKER();
}   // update