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Added rotationIsDir to Particle System. It sets the rotation of each particle to its direction

This commit is contained in:
PickleMan 2013-01-21 04:39:48 -05:00
parent ba111316a7
commit 5c915fc584
2 changed files with 24 additions and 1 deletions
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19
cocos2dx/particle_nodes/CCParticleSystem.cpp
View File

@ -124,6 +124,7 @@ CCParticleSystem::CCParticleSystem()
modeA.tangentialAccelVar = 0;
modeA.radialAccel = 0;
modeA.radialAccelVar = 0;
modeA.rotationIsDir = false;
modeB.startRadius = 0;
modeB.startRadiusVar = 0;
modeB.endRadius = 0;
@ -277,6 +278,9 @@ bool CCParticleSystem::initWithDictionary(CCDictionary *dictionary, const char *
// tangential acceleration
modeA.tangentialAccel = dictionary->valueForKey("tangentialAcceleration")->floatValue();
modeA.tangentialAccelVar = dictionary->valueForKey("tangentialAccelVariance")->floatValue();
// rotation is dir
modeA.rotationIsDir = dictionary->valueForKey("rotationIsDir")->boolValue();
}
// or Mode B: radius movement
@ -544,6 +548,9 @@ void CCParticleSystem::initParticle(tCCParticle* particle)
// tangential accel
particle->modeA.tangentialAccel = modeA.tangentialAccel + modeA.tangentialAccelVar * CCRANDOM_MINUS1_1();
// rotation is dir
if(modeA.rotationIsDir)
particle->rotation = -CC_RADIANS_TO_DEGREES(ccpToAngle(particle->modeA.dir));
}
// Mode Radius: B
@ -897,6 +904,18 @@ float CCParticleSystem::getRadialAccelVar()
return modeA.radialAccelVar;
}
void CCParticleSystem::setRotationIsDir(bool t)
{
CCAssert( m_nEmitterMode == kCCParticleModeGravity, "Particle Mode should be Gravity");
modeA.rotationIsDir = t;
}
bool CCParticleSystem::getRotationIsDir()
{
CCAssert( m_nEmitterMode == kCCParticleModeGravity, "Particle Mode should be Gravity");
return modeA.rotationIsDir;
}
void CCParticleSystem::setGravity(const CCPoint& g)
{
CCAssert( m_nEmitterMode == kCCParticleModeGravity, "Particle Mode should be Gravity");

6
cocos2dx/particle_nodes/CCParticleSystem.h
View File

@ -196,6 +196,8 @@ protected:
float radialAccel;
/** radial acceleration variance of each particle. Only available in 'Gravity' mode. */
float radialAccelVar;
/** set the rotation of each particle to its direction Only available in 'Gravity' mode. */
bool rotationIsDir
} modeA;
//! Mode B: circular movement (gravity, radial accel and tangential accel don't are not used in this mode)
@ -277,6 +279,8 @@ public:
virtual void setRadialAccel(float t);
virtual float getRadialAccelVar();
virtual void setRadialAccelVar(float t);
virtual bool getRotationIsDir();
virtual void setRotationIsDir(bool t);
// mode B
virtual float getStartRadius();
virtual void setStartRadius(float startRadius);
@ -375,7 +379,7 @@ public:
*/
static CCParticleSystem * create(const char *plistFile);
//! create a system with a fixed number of particles
//! create a system with a fixed number of particles
static CCParticleSystem* createWithTotalParticles(unsigned int numberOfParticles);
/** initializes a CCParticleSystem*/