diff options
Diffstat (limited to 'src/particle.cpp')
-rw-r--r-- | src/particle.cpp | 54 |
1 files changed, 23 insertions, 31 deletions
diff --git a/src/particle.cpp b/src/particle.cpp index 2d0873ff..148bbf6f 100644 --- a/src/particle.cpp +++ b/src/particle.cpp @@ -52,14 +52,12 @@ const float Particle::PARTICLE_SKY = 800.0f; Particle::Particle(Map *map): mAlive(true), - mPosX(0.0f), mPosY(0.0f), mPosZ(0.0f), mLifetimeLeft(-1), mLifetimePast(0), mFadeOut(0), mFadeIn(0), mAutoDelete(true), mMap(map), - mVelocityX(0.0f), mVelocityY(0.0f), mVelocityZ(0.0f), mGravity(0.0f), mRandomnes(0), mBounce(0.0f), @@ -109,7 +107,7 @@ Particle::update() p++ ) { - (*p)->moveBy(mPosX, mPosY, mPosZ); + (*p)->moveBy(mPos.x, mPos.y, mPos.z); mChildParticles.push_back (*p); } } @@ -117,31 +115,28 @@ Particle::update() if (mMomentum != 1.0f) { - mVelocityX *= mMomentum; - mVelocityY *= mMomentum; - mVelocityZ *= mMomentum; + mVelocity *= mMomentum; } if (mTarget && mAcceleration != 0.0f) { - float distX = (mPosX - mTarget->getPosX()) * SIN45; - float distY = mPosY - mTarget->getPosY(); - float distZ = mPosZ - mTarget->getPosZ(); + Vector dist = mPos - mTarget->getPosition(); + dist.x *= SIN45; float invHypotenuse; - switch(Particle::fastPhysics) + switch (Particle::fastPhysics) { case 1: invHypotenuse = fastInvSqrt( - distX * distX + distY * distY + distZ * distZ); + dist.x * dist.x + dist.y * dist.y + dist.z * dist.z); break; case 2: invHypotenuse = 2.0f / - fabs(distX) + fabs(distY) + fabs(distZ); + fabs(dist.x) + fabs(dist.y) + fabs(dist.z); break; default: invHypotenuse = 1.0f / sqrt( - distX * distX + distY * distY + distZ * distZ); + dist.x * dist.x + dist.y * dist.y + dist.z * dist.z); break; } @@ -152,25 +147,23 @@ Particle::update() mAlive = false; } float accFactor = invHypotenuse * mAcceleration; - mVelocityX -= distX * accFactor; - mVelocityY -= distY * accFactor; - mVelocityZ -= distZ * accFactor; + mVelocity -= dist * accFactor; } } if (mRandomnes > 0) { - mVelocityX += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f; - mVelocityY += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f; - mVelocityZ += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f; + mVelocity.x += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f; + mVelocity.y += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f; + mVelocity.z += (rand()%mRandomnes - rand()%mRandomnes) / 1000.0f; } - mVelocityZ -= mGravity; + mVelocity.z -= mGravity; // Update position - mPosX += mVelocityX; - mPosY += mVelocityY * SIN45; - mPosZ += mVelocityZ * SIN45; + mPos.x += mVelocity.x; + mPos.y += mVelocity.y * SIN45; + mPos.z += mVelocity.z * SIN45; // Update other stuff if (mLifetimeLeft > 0) @@ -179,14 +172,13 @@ Particle::update() } mLifetimePast++; - if (mPosZ > PARTICLE_SKY || mPosZ < 0.0f) + if (mPos.z > PARTICLE_SKY || mPos.z < 0.0f) { if (mBounce > 0.0f) { - mPosZ *= -mBounce; - mVelocityX *= mBounce; - mVelocityY *= mBounce; - mVelocityZ *= -mBounce; + mPos.z *= -mBounce; + mVelocity *= mBounce; + mVelocity.z = -mVelocity.z; } else { mAlive = false; @@ -282,9 +274,9 @@ Particle::addEffect(const std::string &particleEffectFile, int offsetY = XML::getProperty(effectChildNode, "position-y", 0); int offsetZ = XML::getProperty(effectChildNode, "position-z", 0); - int particleX = (int)mPosX + pixelX + offsetX; - int particleY = (int)mPosY + pixelY + offsetY; - int particleZ = (int)mPosZ + offsetZ; + int particleX = (int) mPos.x + pixelX + offsetX; + int particleY = (int) mPos.y + pixelY + offsetY; + int particleZ = (int) mPos.z + offsetZ; int lifetime = XML::getProperty(effectChildNode, "lifetime", -1); |