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diff --git a/libraries/irrlicht-1.8/source/Irrlicht/CSceneNodeAnimatorFlyCircle.cpp b/libraries/irrlicht-1.8/source/Irrlicht/CSceneNodeAnimatorFlyCircle.cpp
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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 "CSceneNodeAnimatorFlyCircle.h"
6
7namespace irr
8{
9namespace scene
10{
11
12
13//! constructor
14CSceneNodeAnimatorFlyCircle::CSceneNodeAnimatorFlyCircle(u32 time,
15 const core::vector3df& center, f32 radius, f32 speed,
16 const core::vector3df& direction, f32 radiusEllipsoid)
17 : Center(center), Direction(direction), Radius(radius),
18 RadiusEllipsoid(radiusEllipsoid), Speed(speed), StartTime(time)
19{
20 #ifdef _DEBUG
21 setDebugName("CSceneNodeAnimatorFlyCircle");
22 #endif
23 init();
24}
25
26
27void CSceneNodeAnimatorFlyCircle::init()
28{
29 Direction.normalize();
30
31 if (Direction.Y != 0)
32 VecV = core::vector3df(50,0,0).crossProduct(Direction).normalize();
33 else
34 VecV = core::vector3df(0,50,0).crossProduct(Direction).normalize();
35 VecU = VecV.crossProduct(Direction).normalize();
36}
37
38
39//! animates a scene node
40void CSceneNodeAnimatorFlyCircle::animateNode(ISceneNode* node, u32 timeMs)
41{
42 if ( 0 == node )
43 return;
44
45 f32 time;
46
47 // Check for the condition where the StartTime is in the future.
48 if(StartTime > timeMs)
49 time = ((s32)timeMs - (s32)StartTime) * Speed;
50 else
51 time = (timeMs-StartTime) * Speed;
52
53// node->setPosition(Center + Radius * ((VecU*cosf(time)) + (VecV*sinf(time))));
54 f32 r2 = RadiusEllipsoid == 0.f ? Radius : RadiusEllipsoid;
55 node->setPosition(Center + (Radius*cosf(time)*VecU) + (r2*sinf(time)*VecV ) );
56}
57
58
59//! Writes attributes of the scene node animator.
60void CSceneNodeAnimatorFlyCircle::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const
61{
62 out->addVector3d("Center", Center);
63 out->addFloat("Radius", Radius);
64 out->addFloat("Speed", Speed);
65 out->addVector3d("Direction", Direction);
66 out->addFloat("RadiusEllipsoid", RadiusEllipsoid);
67}
68
69
70//! Reads attributes of the scene node animator.
71void CSceneNodeAnimatorFlyCircle::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
72{
73 Center = in->getAttributeAsVector3d("Center");
74 Radius = in->getAttributeAsFloat("Radius");
75 Speed = in->getAttributeAsFloat("Speed");
76 Direction = in->getAttributeAsVector3d("Direction");
77 StartTime = 0;
78
79 if (Direction.equals(core::vector3df(0,0,0)))
80 Direction.set(0,1,0); // irrlicht 1.1 backwards compatibility
81 else
82 Direction.normalize();
83
84 RadiusEllipsoid = in->getAttributeAsFloat("RadiusEllipsoid");
85 init();
86}
87
88
89ISceneNodeAnimator* CSceneNodeAnimatorFlyCircle::createClone(ISceneNode* node, ISceneManager* newManager)
90{
91 CSceneNodeAnimatorFlyCircle * newAnimator =
92 new CSceneNodeAnimatorFlyCircle(StartTime, Center, Radius, Speed, Direction, RadiusEllipsoid);
93
94 return newAnimator;
95}
96
97
98} // end namespace scene
99} // end namespace irr
100