From 393b5cd1dc438872af89d334ef6e5fcc59f27d47 Mon Sep 17 00:00:00 2001
From: David Walter Seikel
Date: Sun, 13 Jan 2013 17:24:39 +1000
Subject: Added Irrlicht 1.8, but without all the Windows binaries.

---
 .../source/Irrlicht/CParticleGravityAffector.cpp   | 64 ++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 libraries/irrlicht-1.8/source/Irrlicht/CParticleGravityAffector.cpp

(limited to 'libraries/irrlicht-1.8/source/Irrlicht/CParticleGravityAffector.cpp')

diff --git a/libraries/irrlicht-1.8/source/Irrlicht/CParticleGravityAffector.cpp b/libraries/irrlicht-1.8/source/Irrlicht/CParticleGravityAffector.cpp
new file mode 100644
index 0000000..450a5df
--- /dev/null
+++ b/libraries/irrlicht-1.8/source/Irrlicht/CParticleGravityAffector.cpp
@@ -0,0 +1,64 @@
+// 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 "CParticleGravityAffector.h"
+#include "os.h"
+#include "IAttributes.h"
+
+namespace irr
+{
+namespace scene
+{
+
+//! constructor
+CParticleGravityAffector::CParticleGravityAffector(
+	const core::vector3df& gravity, u32 timeForceLost)
+	: IParticleGravityAffector(), TimeForceLost(static_cast<f32>(timeForceLost)), Gravity(gravity)
+{
+	#ifdef _DEBUG
+	setDebugName("CParticleGravityAffector");
+	#endif
+}
+
+
+//! Affects an array of particles.
+void CParticleGravityAffector::affect(u32 now, SParticle* particlearray, u32 count)
+{
+	if (!Enabled)
+		return;
+	f32 d;
+
+	for (u32 i=0; i<count; ++i)
+	{
+		d = (now - particlearray[i].startTime) / TimeForceLost;
+		if (d > 1.0f)
+			d = 1.0f;
+		if (d < 0.0f)
+			d = 0.0f;
+		d = 1.0f - d;
+
+		particlearray[i].vector = particlearray[i].startVector.getInterpolated(Gravity, d);
+	}
+}
+
+//! Writes attributes of the object.
+void CParticleGravityAffector::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const
+{
+	out->addVector3d("Gravity", Gravity);
+	out->addFloat("TimeForceLost", TimeForceLost);
+}
+
+
+//! Reads attributes of the object.
+void CParticleGravityAffector::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
+{
+	Gravity = in->getAttributeAsVector3d("Gravity");
+	TimeForceLost = in->getAttributeAsFloat("TimeForceLost");
+}
+
+
+
+} // end namespace scene
+} // end namespace irr
+
-- 
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