From f9158592e1478b2013afc7041d9ed041cf2d2f4a Mon Sep 17 00:00:00 2001
From: David Walter Seikel
Date: Mon, 13 Jan 2014 19:47:58 +1000
Subject: Update Irrlicht to 1.8.1.  Include actual change markers this time. 
 lol

---
 .../source/Irrlicht/CParticleBoxEmitter.cpp        | 188 +++++++++++++++++++++
 1 file changed, 188 insertions(+)
 create mode 100644 libraries/irrlicht-1.8.1/source/Irrlicht/CParticleBoxEmitter.cpp

(limited to 'libraries/irrlicht-1.8.1/source/Irrlicht/CParticleBoxEmitter.cpp')

diff --git a/libraries/irrlicht-1.8.1/source/Irrlicht/CParticleBoxEmitter.cpp b/libraries/irrlicht-1.8.1/source/Irrlicht/CParticleBoxEmitter.cpp
new file mode 100644
index 0000000..9728f6f
--- /dev/null
+++ b/libraries/irrlicht-1.8.1/source/Irrlicht/CParticleBoxEmitter.cpp
@@ -0,0 +1,188 @@
+// Copyright (C) 2002-2012 Nikolaus Gebhardt
+// This file is part of the "Irrlicht Engine".
+// For conditions of distribution and use, see copyright notice in irrlicht.h
+
+#include "CParticleBoxEmitter.h"
+#include "os.h"
+#include "IAttributes.h"
+#include "irrMath.h"
+
+namespace irr
+{
+namespace scene
+{
+
+//! constructor
+CParticleBoxEmitter::CParticleBoxEmitter(
+	const core::aabbox3df& box, const core::vector3df& direction,
+	u32 minParticlesPerSecond, u32 maxParticlesPerSecond,
+	video::SColor minStartColor, video::SColor maxStartColor,
+	u32 lifeTimeMin, u32 lifeTimeMax, s32 maxAngleDegrees,
+	const core::dimension2df& minStartSize, const core::dimension2df& maxStartSize)
+ : Box(box), Direction(direction),
+	MaxStartSize(maxStartSize), MinStartSize(minStartSize),
+	MinParticlesPerSecond(minParticlesPerSecond),
+	MaxParticlesPerSecond(maxParticlesPerSecond),
+	MinStartColor(minStartColor), MaxStartColor(maxStartColor),
+	MinLifeTime(lifeTimeMin), MaxLifeTime(lifeTimeMax),
+	Time(0), Emitted(0), MaxAngleDegrees(maxAngleDegrees)
+{
+	#ifdef _DEBUG
+	setDebugName("CParticleBoxEmitter");
+	#endif
+}
+
+
+//! Prepares an array with new particles to emitt into the system
+//! and returns how much new particles there are.
+s32 CParticleBoxEmitter::emitt(u32 now, u32 timeSinceLastCall, SParticle*& outArray)
+{
+	Time += timeSinceLastCall;
+
+	const u32 pps = (MaxParticlesPerSecond - MinParticlesPerSecond);
+	const f32 perSecond = pps ? ((f32)MinParticlesPerSecond + os::Randomizer::frand() * pps) : MinParticlesPerSecond;
+	const f32 everyWhatMillisecond = 1000.0f / perSecond;
+
+	if (Time > everyWhatMillisecond)
+	{
+		Particles.set_used(0);
+		u32 amount = (u32)((Time / everyWhatMillisecond) + 0.5f);
+		Time = 0;
+		SParticle p;
+		const core::vector3df& extent = Box.getExtent();
+
+		if (amount > MaxParticlesPerSecond*2)
+			amount = MaxParticlesPerSecond * 2;
+
+		for (u32 i=0; i<amount; ++i)
+		{
+			p.pos.X = Box.MinEdge.X + os::Randomizer::frand() * extent.X;
+			p.pos.Y = Box.MinEdge.Y + os::Randomizer::frand() * extent.Y;
+			p.pos.Z = Box.MinEdge.Z + os::Randomizer::frand() * extent.Z;
+
+			p.startTime = now;
+			p.vector = Direction;
+
+			if (MaxAngleDegrees)
+			{
+				core::vector3df tgt = Direction;
+				tgt.rotateXYBy(os::Randomizer::frand() * MaxAngleDegrees);
+				tgt.rotateYZBy(os::Randomizer::frand() * MaxAngleDegrees);
+				tgt.rotateXZBy(os::Randomizer::frand() * MaxAngleDegrees);
+				p.vector = tgt;
+			}
+
+			p.endTime = now + MinLifeTime;
+			if (MaxLifeTime != MinLifeTime)
+				p.endTime += os::Randomizer::rand() % (MaxLifeTime - MinLifeTime);
+
+			if (MinStartColor==MaxStartColor)
+				p.color=MinStartColor;
+			else
+				p.color = MinStartColor.getInterpolated(MaxStartColor, os::Randomizer::frand());
+
+			p.startColor = p.color;
+			p.startVector = p.vector;
+
+			if (MinStartSize==MaxStartSize)
+				p.startSize = MinStartSize;
+			else
+				p.startSize = MinStartSize.getInterpolated(MaxStartSize, os::Randomizer::frand());
+			p.size = p.startSize;
+
+			Particles.push_back(p);
+		}
+
+		outArray = Particles.pointer();
+
+		return Particles.size();
+	}
+
+	return 0;
+}
+
+
+//! Writes attributes of the object.
+void CParticleBoxEmitter::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const
+{
+	core::vector3df b = Box.getExtent();
+	b *= 0.5f;
+	out->addVector3d("Box", b);
+	out->addVector3d("Direction", Direction);
+	out->addFloat("MinStartSizeWidth", MinStartSize.Width);
+	out->addFloat("MinStartSizeHeight", MinStartSize.Height);
+	out->addFloat("MaxStartSizeWidth", MaxStartSize.Width);
+	out->addFloat("MaxStartSizeHeight", MaxStartSize.Height); 
+	out->addInt("MinParticlesPerSecond", MinParticlesPerSecond);
+	out->addInt("MaxParticlesPerSecond", MaxParticlesPerSecond);
+	out->addColor("MinStartColor", MinStartColor);
+	out->addColor("MaxStartColor", MaxStartColor);
+	out->addInt("MinLifeTime", MinLifeTime);
+	out->addInt("MaxLifeTime", MaxLifeTime);
+	out->addInt("MaxAngleDegrees", MaxAngleDegrees);
+}
+
+
+//! Reads attributes of the object.
+void CParticleBoxEmitter::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
+{
+	// read data and correct input values here
+
+	core::vector3df b = in->getAttributeAsVector3d("Box");
+
+	if (b.X <= 0)
+		b.X = 1.0f;
+	if (b.Y <= 0)
+		b.Y = 1.0f;
+	if (b.Z <= 0)
+		b.Z = 1.0f;
+
+	Box.MinEdge.X = -b.X;
+	Box.MinEdge.Y = -b.Y;
+	Box.MinEdge.Z = -b.Z;
+	Box.MaxEdge.X = b.X;
+	Box.MaxEdge.Y = b.Y;
+	Box.MaxEdge.Z = b.Z;
+
+	Direction = in->getAttributeAsVector3d("Direction");
+	if (Direction.getLength() == 0)
+		Direction.set(0,0.01f,0);
+
+	int idx = -1;
+	idx = in->findAttribute("MinStartSizeWidth");
+	if ( idx >= 0 )
+		MinStartSize.Width = in->getAttributeAsFloat(idx);
+	idx = in->findAttribute("MinStartSizeHeight");
+	if ( idx >= 0 )
+		MinStartSize.Height = in->getAttributeAsFloat(idx);
+	idx = in->findAttribute("MaxStartSizeWidth");
+	if ( idx >= 0 )
+		MaxStartSize.Width = in->getAttributeAsFloat(idx);
+	idx = in->findAttribute("MaxStartSizeHeight");
+	if ( idx >= 0 )
+		MaxStartSize.Height = in->getAttributeAsFloat(idx); 
+
+	MinParticlesPerSecond = in->getAttributeAsInt("MinParticlesPerSecond");
+	MaxParticlesPerSecond = in->getAttributeAsInt("MaxParticlesPerSecond");
+
+	MinParticlesPerSecond = core::max_(1u, MinParticlesPerSecond);
+	MaxParticlesPerSecond = core::max_(MaxParticlesPerSecond, 1u);
+	MaxParticlesPerSecond = core::min_(MaxParticlesPerSecond, 200u);
+	MinParticlesPerSecond = core::min_(MinParticlesPerSecond, MaxParticlesPerSecond);
+
+	MinStartColor = in->getAttributeAsColor("MinStartColor");
+	MaxStartColor = in->getAttributeAsColor("MaxStartColor");
+	MinLifeTime = in->getAttributeAsInt("MinLifeTime");
+	MaxLifeTime = in->getAttributeAsInt("MaxLifeTime");
+	MaxAngleDegrees = in->getAttributeAsInt("MaxAngleDegrees");
+
+	MinLifeTime = core::max_(0u, MinLifeTime);
+	MaxLifeTime = core::max_(MaxLifeTime, MinLifeTime);
+	MinLifeTime = core::min_(MinLifeTime, MaxLifeTime);
+
+}
+
+
+} // end namespace scene
+} // end namespace irr
+
-- 
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