Merging r5975 through r6036 from trunk to ogl-es branch.

GLES drivers adapted, but only did make compile-tests.


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/branches/ogl-es@6038 dfc29bdd-3216-0410-991c-e03cc46cb475

include/IParticleAffector.h

@@ -0,0 +1,72 @@
+// 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
+
+#ifndef __I_PARTICLE_AFFECTOR_H_INCLUDED__
+#define __I_PARTICLE_AFFECTOR_H_INCLUDED__
+
+#include "IAttributeExchangingObject.h"
+#include "SParticle.h"
+
+namespace irr
+{
+namespace scene
+{
+
+//! Types of built in particle affectors
+enum E_PARTICLE_AFFECTOR_TYPE
+{
+	EPAT_NONE = 0,
+	EPAT_ATTRACT,
+	EPAT_FADE_OUT,
+	EPAT_GRAVITY,
+	EPAT_ROTATE,
+	EPAT_SCALE,
+	EPAT_COUNT
+};
+
+//! Names for built in particle affectors
+const c8* const ParticleAffectorTypeNames[] =
+{
+	"None",
+	"Attract",
+	"FadeOut",
+	"Gravity",
+	"Rotate",
+	"Scale",
+	0
+};
+
+//! A particle affector modifies particles.
+class IParticleAffector : public virtual io::IAttributeExchangingObject
+{
+public:
+
+	//! constructor
+	IParticleAffector() : Enabled(true) {}
+
+	//! Affects an array of particles.
+	/** \param now Current time. (Same as ITimer::getTime() would return)
+	\param particlearray Array of particles.
+	\param count Amount of particles in array. */
+	virtual void affect(u32 now, SParticle* particlearray, u32 count) = 0;
+
+	//! Sets whether or not the affector is currently enabled.
+	virtual void setEnabled(bool enabled) { Enabled = enabled; }
+
+	//! Gets whether or not the affector is currently enabled.
+	virtual bool getEnabled() const { return Enabled; }
+
+	//! Get emitter type
+	virtual E_PARTICLE_AFFECTOR_TYPE getType() const = 0;
+
+protected:
+	bool Enabled;
+};
+
+} // end namespace scene
+} // end namespace irr
+
+
+#endif
+