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-rw-r--r--src/particle.cpp54
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);