1 files changed, 161 insertions, 0 deletions
diff --git a/src/others/irrlicht-1.8.1/source/Irrlicht/CSceneNodeAnimatorFollowSpline.cpp b/src/others/irrlicht-1.8.1/source/Irrlicht/CSceneNodeAnimatorFollowSpline.cpp
new file mode 100644
index 0000000..efc7493
--- /dev/null
+++ b/src/others/irrlicht-1.8.1/source/Irrlicht/CSceneNodeAnimatorFollowSpline.cpp
@@ -0,0 +1,161 @@
+// 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 "CSceneNodeAnimatorFollowSpline.h"
+namespace irr
+{
+namespace scene
+{
+//! constructor
+CSceneNodeAnimatorFollowSpline::CSceneNodeAnimatorFollowSpline(u32 time,
+        const core::array<core::vector3df>& points, f32 speed,
+        f32 tightness, bool loop, bool pingpong)
+: ISceneNodeAnimatorFinishing(0), Points(points), Speed(speed), Tightness(tightness), StartTime(time)
+, Loop(loop), PingPong(pingpong)
+{
+        #ifdef _DEBUG
+        setDebugName("CSceneNodeAnimatorFollowSpline");
+        #endif
+}
+inline s32 CSceneNodeAnimatorFollowSpline::clamp(s32 idx, s32 size)
+{
+        return ( idx<0 ? size+idx : ( idx>=size ? idx-size : idx ) );
+}
+//! animates a scene node
+void CSceneNodeAnimatorFollowSpline::animateNode(ISceneNode* node, u32 timeMs)
+{
+        if(!node)
+                return;
+        const u32 pSize = Points.size();
+        if (pSize==0)
+        {
+                if ( !Loop )
+                        HasFinished = true;
+                return;
+        }
+        if (pSize==1)
+        {
+                if ( timeMs > StartTime )
+                {
+                        node->setPosition(Points[0]);
+                        if ( !Loop )
+                                HasFinished = true;
+                }
+                return;
+        }
+        const f32 dt = ( (timeMs-StartTime) * Speed * 0.001f );
+        const s32 unwrappedIdx = core::floor32( dt );
+        if ( !Loop && unwrappedIdx >= (s32)pSize-1 )
+        {
+                node->setPosition(Points[pSize-1]);
+                HasFinished = true;
+                return;
+        }
+        const bool pong = PingPong && (unwrappedIdx/(pSize-1))%2;
+        const f32 u =  pong ? 1.f-core::fract ( dt ) : core::fract ( dt );
+        const s32 idx = pong ?  (pSize-2) - (unwrappedIdx % (pSize-1))
+                                                : (PingPong ? unwrappedIdx % (pSize-1)
+                                                                        : unwrappedIdx % pSize);
+        //const f32 u = 0.001f * fmodf( dt, 1000.0f );
+        const core::vector3df& p0 = Points[ clamp( idx - 1, pSize ) ];
+        const core::vector3df& p1 = Points[ clamp( idx + 0, pSize ) ]; // starting point
+        const core::vector3df& p2 = Points[ clamp( idx + 1, pSize ) ]; // end point
+        const core::vector3df& p3 = Points[ clamp( idx + 2, pSize ) ];
+        // hermite polynomials
+        const f32 h1 = 2.0f * u * u * u - 3.0f * u * u + 1.0f;
+        const f32 h2 = -2.0f * u * u * u + 3.0f * u * u;
+        const f32 h3 = u * u * u - 2.0f * u * u + u;
+        const f32 h4 = u * u * u - u * u;
+        // tangents
+        const core::vector3df t1 = ( p2 - p0 ) * Tightness;
+        const core::vector3df t2 = ( p3 - p1 ) * Tightness;
+        // interpolated point
+        node->setPosition(p1 * h1 + p2 * h2 + t1 * h3 + t2 * h4);
+}
+//! Writes attributes of the scene node animator.
+void CSceneNodeAnimatorFollowSpline::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const
+{
+        out->addFloat("Speed", Speed);
+        out->addFloat("Tightness", Tightness);
+        out->addBool("Loop", Loop);
+        out->addBool("PingPong", PingPong);
+        u32 count = Points.size();
+        if ( options && (options->Flags & io::EARWF_FOR_EDITOR))
+        {
+                // add one point in addition when serializing for editors
+                // to make it easier to add points quickly
+                count += 1;
+        }
+        for (u32 i=0; i<count; ++i)
+        {
+                core::stringc tname = "Point";
+                tname += (int)(i+1);
+                out->addVector3d(tname.c_str(), i<Points.size() ? Points[i] : core::vector3df(0,0,0) );
+        }
+}
+//! Reads attributes of the scene node animator.
+void CSceneNodeAnimatorFollowSpline::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
+{
+        Speed = in->getAttributeAsFloat("Speed");
+        Tightness = in->getAttributeAsFloat("Tightness");
+        Loop = in->getAttributeAsBool("Loop");
+        PingPong = in->getAttributeAsBool("PingPong");
+        Points.clear();
+        for(u32 i=1; true; ++i)
+        {
+                core::stringc pname = "Point";
+                pname += i;
+                if (in->existsAttribute(pname.c_str()))
+                        Points.push_back(in->getAttributeAsVector3d(pname.c_str()));
+                else
+                        break;
+        }
+        // remove last point if double entry from editor
+        if ( options && (options->Flags & io::EARWF_FOR_EDITOR) &&
+                Points.size() > 2 && Points.getLast() == core::vector3df(0,0,0))
+        {
+                Points.erase(Points.size()-1);
+                if (Points.size() > 2 && Points.getLast() == core::vector3df(0,0,0))
+                        Points.erase(Points.size()-1);
+        }
+}
+ISceneNodeAnimator* CSceneNodeAnimatorFollowSpline::createClone(ISceneNode* node, ISceneManager* newManager)
+{
+        CSceneNodeAnimatorFollowSpline * newAnimator =
+                new CSceneNodeAnimatorFollowSpline(StartTime, Points, Speed, Tightness);
+        return newAnimator;
+}
+} // end namespace scene
+} // end namespace irr

diff --git a/src/others/irrlicht-1.8.1/source/Irrlicht/CSceneNodeAnimatorFollowSpline.cpp b/src/others/irrlicht-1.8.1/source/Irrlicht/CSceneNodeAnimatorFollowSpline.cpp new file mode 100644 index 0000000..efc7493 --- /dev/null +++ b/src/others/irrlicht-1.8.1/source/Irrlicht/CSceneNodeAnimatorFollowSpline.cpp
@@ -0,0 +1,161 @@
	1	// Copyright (C) 2002-2012 Nikolaus Gebhardt
	2	// This file is part of the "Irrlicht Engine".
	3	// For conditions of distribution and use, see copyright notice in irrlicht.h
	4
	5	#include "CSceneNodeAnimatorFollowSpline.h"
	6
	7	namespace irr
	8	{
	9	namespace scene
	10	{
	11
	12
	13	//! constructor
	14	CSceneNodeAnimatorFollowSpline::CSceneNodeAnimatorFollowSpline(u32 time,
	15	const core::array<core::vector3df>& points, f32 speed,
	16	f32 tightness, bool loop, bool pingpong)
	17	: ISceneNodeAnimatorFinishing(0), Points(points), Speed(speed), Tightness(tightness), StartTime(time)
	18	, Loop(loop), PingPong(pingpong)
	19	{
	20	#ifdef _DEBUG
	21	setDebugName("CSceneNodeAnimatorFollowSpline");
	22	#endif
	23	}
	24
	25
	26	inline s32 CSceneNodeAnimatorFollowSpline::clamp(s32 idx, s32 size)
	27	{
	28	return ( idx<0 ? size+idx : ( idx>=size ? idx-size : idx ) );
	29	}
	30
	31
	32	//! animates a scene node
	33	void CSceneNodeAnimatorFollowSpline::animateNode(ISceneNode* node, u32 timeMs)
	34	{
	35	if(!node)
	36	return;
	37
	38	const u32 pSize = Points.size();
	39	if (pSize==0)
	40	{
	41	if ( !Loop )
	42	HasFinished = true;
	43	return;
	44	}
	45	if (pSize==1)
	46	{
	47	if ( timeMs > StartTime )
	48	{
	49	node->setPosition(Points[0]);
	50	if ( !Loop )
	51	HasFinished = true;
	52	}
	53	return;
	54	}
	55
	56	const f32 dt = ( (timeMs-StartTime) * Speed * 0.001f );
	57	const s32 unwrappedIdx = core::floor32( dt );
	58	if ( !Loop && unwrappedIdx >= (s32)pSize-1 )
	59	{
	60	node->setPosition(Points[pSize-1]);
	61	HasFinished = true;
	62	return;
	63	}
	64	const bool pong = PingPong && (unwrappedIdx/(pSize-1))%2;
	65	const f32 u = pong ? 1.f-core::fract ( dt ) : core::fract ( dt );
	66	const s32 idx = pong ? (pSize-2) - (unwrappedIdx % (pSize-1))
	67	: (PingPong ? unwrappedIdx % (pSize-1)
	68	: unwrappedIdx % pSize);
	69	//const f32 u = 0.001f * fmodf( dt, 1000.0f );
	70
	71	const core::vector3df& p0 = Points[ clamp( idx - 1, pSize ) ];
	72	const core::vector3df& p1 = Points[ clamp( idx + 0, pSize ) ]; // starting point
	73	const core::vector3df& p2 = Points[ clamp( idx + 1, pSize ) ]; // end point
	74	const core::vector3df& p3 = Points[ clamp( idx + 2, pSize ) ];
	75
	76	// hermite polynomials
	77	const f32 h1 = 2.0f * u * u * u - 3.0f * u * u + 1.0f;
	78	const f32 h2 = -2.0f * u * u * u + 3.0f * u * u;
	79	const f32 h3 = u * u * u - 2.0f * u * u + u;
	80	const f32 h4 = u * u * u - u * u;
	81
	82	// tangents
	83	const core::vector3df t1 = ( p2 - p0 ) * Tightness;
	84	const core::vector3df t2 = ( p3 - p1 ) * Tightness;
	85
	86	// interpolated point
	87	node->setPosition(p1 * h1 + p2 * h2 + t1 * h3 + t2 * h4);
	88	}
	89
	90
	91	//! Writes attributes of the scene node animator.
	92	void CSceneNodeAnimatorFollowSpline::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const
	93	{
	94	out->addFloat("Speed", Speed);
	95	out->addFloat("Tightness", Tightness);
	96	out->addBool("Loop", Loop);
	97	out->addBool("PingPong", PingPong);
	98
	99	u32 count = Points.size();
	100
	101	if ( options && (options->Flags & io::EARWF_FOR_EDITOR))
	102	{
	103	// add one point in addition when serializing for editors
	104	// to make it easier to add points quickly
	105	count += 1;
	106	}
	107
	108	for (u32 i=0; i<count; ++i)
	109	{
	110	core::stringc tname = "Point";
	111	tname += (int)(i+1);
	112
	113	out->addVector3d(tname.c_str(), i<Points.size() ? Points[i] : core::vector3df(0,0,0) );
	114	}
	115	}
	116
	117
	118	//! Reads attributes of the scene node animator.
	119	void CSceneNodeAnimatorFollowSpline::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
	120	{
	121	Speed = in->getAttributeAsFloat("Speed");
	122	Tightness = in->getAttributeAsFloat("Tightness");
	123	Loop = in->getAttributeAsBool("Loop");
	124	PingPong = in->getAttributeAsBool("PingPong");
	125	Points.clear();
	126
	127	for(u32 i=1; true; ++i)
	128	{
	129	core::stringc pname = "Point";
	130	pname += i;
	131
	132	if (in->existsAttribute(pname.c_str()))
	133	Points.push_back(in->getAttributeAsVector3d(pname.c_str()));
	134	else
	135	break;
	136	}
	137
	138	// remove last point if double entry from editor
	139	if ( options && (options->Flags & io::EARWF_FOR_EDITOR) &&
	140	Points.size() > 2 && Points.getLast() == core::vector3df(0,0,0))
	141	{
	142	Points.erase(Points.size()-1);
	143
	144	if (Points.size() > 2 && Points.getLast() == core::vector3df(0,0,0))
	145	Points.erase(Points.size()-1);
	146	}
	147	}
	148
	149
	150	ISceneNodeAnimator* CSceneNodeAnimatorFollowSpline::createClone(ISceneNode* node, ISceneManager* newManager)
	151	{
	152	CSceneNodeAnimatorFollowSpline * newAnimator =
	153	new CSceneNodeAnimatorFollowSpline(StartTime, Points, Speed, Tightness);
	154
	155	return newAnimator;
	156	}
	157
	158
	159	} // end namespace scene
	160	} // end namespace irr
	161