Avoid warning and make local variable lower-case.
git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6000 dfc29bdd-3216-0410-991c-e03cc46cb475
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cutealien
178
source/Irrlicht/CParticleSphereEmitter.cpp
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178
source/Irrlicht/CParticleSphereEmitter.cpp
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// Copyright (C) 2002-2012 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#include "CParticleSphereEmitter.h"
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#ifdef _IRR_COMPILE_WITH_PARTICLES_
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#include "os.h"
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#include "IAttributes.h"
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namespace irr
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{
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namespace scene
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{
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//! constructor
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CParticleSphereEmitter::CParticleSphereEmitter(
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const core::vector3df& center, f32 radius,
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const core::vector3df& direction, u32 minParticlesPerSecond,
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u32 maxParticlesPerSecond, const video::SColor& minStartColor,
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const video::SColor& maxStartColor, u32 lifeTimeMin, u32 lifeTimeMax,
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s32 maxAngleDegrees,
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const core::dimension2df& minStartSize,
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const core::dimension2df& maxStartSize )
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: Center(center), Radius(radius), Direction(direction),
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MinStartSize(minStartSize), MaxStartSize(maxStartSize),
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MinParticlesPerSecond(minParticlesPerSecond),
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MaxParticlesPerSecond(maxParticlesPerSecond),
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MinStartColor(minStartColor), MaxStartColor(maxStartColor),
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MinLifeTime(lifeTimeMin), MaxLifeTime(lifeTimeMax),
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Time(0), MaxAngleDegrees(maxAngleDegrees)
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{
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#ifdef _DEBUG
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setDebugName("CParticleSphereEmitter");
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#endif
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}
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//! Prepares an array with new particles to emitt into the system
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//! and returns how much new particles there are.
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s32 CParticleSphereEmitter::emitt(u32 now, u32 timeSinceLastCall, SParticle*& outArray)
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{
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Time += timeSinceLastCall;
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const u32 pps = (MaxParticlesPerSecond - MinParticlesPerSecond);
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const f32 perSecond = pps ? ((f32)MinParticlesPerSecond + os::Randomizer::frand() * pps) : MinParticlesPerSecond;
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const f32 everyWhatMillisecond = 1000.0f / perSecond;
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if(Time > everyWhatMillisecond)
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{
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Particles.set_used(0);
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u32 amount = (u32)((Time / everyWhatMillisecond) + 0.5f);
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Time = 0;
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SParticle p;
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if(amount > MaxParticlesPerSecond*2)
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amount = MaxParticlesPerSecond * 2;
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for(u32 i=0; i<amount; ++i)
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{
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// Random distance from center
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const f32 distance = os::Randomizer::frand() * Radius;
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// Random direction from center
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p.pos.set(Center + distance);
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p.pos.rotateXYBy(os::Randomizer::frand() * 360.f, Center );
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p.pos.rotateYZBy(os::Randomizer::frand() * 360.f, Center );
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p.pos.rotateXZBy(os::Randomizer::frand() * 360.f, Center );
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p.startTime = now;
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p.vector = Direction;
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if(MaxAngleDegrees)
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{
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core::vector3df tgt = Direction;
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tgt.rotateXYBy(os::Randomizer::frand() * MaxAngleDegrees);
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tgt.rotateYZBy(os::Randomizer::frand() * MaxAngleDegrees);
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tgt.rotateXZBy(os::Randomizer::frand() * MaxAngleDegrees);
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p.vector = tgt;
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}
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p.endTime = now + MinLifeTime;
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if (MaxLifeTime != MinLifeTime)
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p.endTime += os::Randomizer::rand() % (MaxLifeTime - MinLifeTime);
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if (MinStartColor==MaxStartColor)
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p.color=MinStartColor;
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else
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p.color = MinStartColor.getInterpolated(MaxStartColor, os::Randomizer::frand());
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p.startColor = p.color;
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p.startVector = p.vector;
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if (MinStartSize==MaxStartSize)
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p.startSize = MinStartSize;
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else
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p.startSize = MinStartSize.getInterpolated(MaxStartSize, os::Randomizer::frand());
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p.size = p.startSize;
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Particles.push_back(p);
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}
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outArray = Particles.pointer();
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return Particles.size();
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}
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return 0;
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}
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//! Writes attributes of the object.
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void CParticleSphereEmitter::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const
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{
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out->addVector3d("Center", Direction);
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out->addFloat("Radius", Radius);
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out->addVector3d("Direction", Direction);
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out->addFloat("MinStartSizeWidth", MinStartSize.Width);
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out->addFloat("MinStartSizeHeight", MinStartSize.Height);
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out->addFloat("MaxStartSizeWidth", MaxStartSize.Width);
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out->addFloat("MaxStartSizeHeight", MaxStartSize.Height);
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out->addInt("MinParticlesPerSecond", MinParticlesPerSecond);
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out->addInt("MaxParticlesPerSecond", MaxParticlesPerSecond);
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out->addColor("MinStartColor", MinStartColor);
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out->addColor("MaxStartColor", MaxStartColor);
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out->addInt("MinLifeTime", MinLifeTime);
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out->addInt("MaxLifeTime", MaxLifeTime);
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out->addInt("MaxAngleDegrees", MaxAngleDegrees);
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}
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//! Reads attributes of the object.
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void CParticleSphereEmitter::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
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{
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Center = in->getAttributeAsVector3d("Center");
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Radius = in->getAttributeAsFloat("Radius");
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Direction = in->getAttributeAsVector3d("Direction");
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if (Direction.getLength() == 0)
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Direction.set(0,0.01f,0);
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int idx = -1;
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idx = in->findAttribute("MinStartSizeWidth");
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if ( idx >= 0 )
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MinStartSize.Width = in->getAttributeAsFloat(idx);
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idx = in->findAttribute("MinStartSizeHeight");
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if ( idx >= 0 )
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MinStartSize.Height = in->getAttributeAsFloat(idx);
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idx = in->findAttribute("MaxStartSizeWidth");
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if ( idx >= 0 )
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MaxStartSize.Width = in->getAttributeAsFloat(idx);
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idx = in->findAttribute("MaxStartSizeHeight");
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if ( idx >= 0 )
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MaxStartSize.Height = in->getAttributeAsFloat(idx);
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MinParticlesPerSecond = in->getAttributeAsInt("MinParticlesPerSecond");
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MaxParticlesPerSecond = in->getAttributeAsInt("MaxParticlesPerSecond");
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MinParticlesPerSecond = core::max_(1u, MinParticlesPerSecond);
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MaxParticlesPerSecond = core::max_(MaxParticlesPerSecond, 1u);
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MaxParticlesPerSecond = core::min_(MaxParticlesPerSecond, 200u);
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MinParticlesPerSecond = core::min_(MinParticlesPerSecond, MaxParticlesPerSecond);
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MinStartColor = in->getAttributeAsColor("MinStartColor");
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MaxStartColor = in->getAttributeAsColor("MaxStartColor");
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MinLifeTime = in->getAttributeAsInt("MinLifeTime");
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MaxLifeTime = in->getAttributeAsInt("MaxLifeTime");
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MinLifeTime = core::max_(0u, MinLifeTime);
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MaxLifeTime = core::max_(MaxLifeTime, MinLifeTime);
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MinLifeTime = core::min_(MinLifeTime, MaxLifeTime);
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MaxAngleDegrees = in->getAttributeAsInt("MaxAngleDegrees");
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}
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} // end namespace scene
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} // end namespace irr
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#endif // _IRR_COMPILE_WITH_PARTICLES_
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