Run3-Game-Engine/ExplosionEmitter.cpp at master · Sgw32/Run3-Game-Engine · GitHub

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#include "ExplosionEmitter.h"
#include "Run3SoundRuntime.h"

ExplosionEmitter::ExplosionEmitter() {
  startemit = false;
  mDispose = false;
}

ExplosionEmitter::~ExplosionEmitter() {}

void ExplosionEmitter::init() {
  SceneManager *mSceneMgr = global::getSingleton().getSceneManager();
  // bSys=mSceneMgr->createParticleSystem("ExplosionEmit", "explosion01");
  bNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
  bSys = mSceneMgr->createParticleSystem(bNode->getName(), "explosion01");
  bNode->attachObject(bSys);
  bSys->setVisible(false);
}

void ExplosionEmitter::emitExplosion(Vector3 pos, Vector3 size) {
  bNode->setPosition(pos);
  bNode->setScale(size);
  bSys->setVisible(true);
  startemit = true;
  timePos = bSys->getEmitter(0)->getMaxDuration() +
            bSys->getEmitter(0)->getMaxTimeToLive();
  Run3SoundRuntime::getSingleton().emitSound(
      "run3/sounds/exp1.wav", timePos, false, pos, size.x * 100, size.x * 100);
  global::getSingleton().mBw->blast(pos, size * 100, size.x * 40);
}

void ExplosionEmitter::emitExplosion(Vector3 pos, Vector3 size,
                                     String explosionSound) {
  bNode->setPosition(pos);
  bNode->setScale(size);
  bSys->setVisible(true);
  startemit = true;
  timePos = bSys->getEmitter(0)->getMaxDuration() +
            bSys->getEmitter(0)->getMaxTimeToLive();
  Run3SoundRuntime::getSingleton().emitSound(explosionSound, timePos, false,
                                             pos, size.x * 100, size.x * 100);
  global::getSingleton().mBw->blast(pos, size * 100, size.x * 40);
}

void ExplosionEmitter::init(String particle_file) {
  SceneManager *mSceneMgr = global::getSingleton().getSceneManager();
  // bSys=mSceneMgr->createParticleSystem("ExplosionEmit", "explosion01");
  bNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
  bSys = mSceneMgr->createParticleSystem(bNode->getName(), particle_file);
  bNode->attachObject(bSys);
  bSys->setVisible(false);
}

void ExplosionEmitter::upd(const Ogre::FrameEvent &evt) {
  if (startemit) {
    Real tShift = TIME_SHIFT;
    timePos -= evt.timeSinceLastFrame * tShift;
    if (tShift < 1.0f) {
      bSys->getEmitter(0)->setEmissionRate(
          bSys->getEmitter(0)->getEmissionRate() * tShift);
      bSys->getEmitter(0)->setTimeToLive(bSys->getEmitter(0)->getTimeToLive() *
                                         (2 - tShift));
      bSys->getEmitter(0)->setParticleVelocity(
          bSys->getEmitter(0)->getParticleVelocity() * tShift);
      bSys->getEmitter(0)->setDuration(bSys->getEmitter(0)->getDuration() *
                                       (2 - tShift));
    }
    if (tShift > 1.0f) {
      bSys->getEmitter(0)->setEmissionRate(
          bSys->getEmitter(0)->getEmissionRate() * tShift);
      bSys->getEmitter(0)->setTimeToLive(bSys->getEmitter(0)->getTimeToLive() /
                                         tShift);
      bSys->getEmitter(0)->setParticleVelocity(
          bSys->getEmitter(0)->getParticleVelocity() * tShift);
      bSys->getEmitter(0)->setDuration(bSys->getEmitter(0)->getDuration() /
                                       tShift);
    }
    if (timePos < 0) {
      bSys->setVisible(false);
      destroyEmitter();
    }
  }
}