mirror of https://github.com/minetest/irrlicht.git
120 lines
2.9 KiB
C++
120 lines
2.9 KiB
C++
// Copyright (C) 2002-2012 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#include "CSceneNodeAnimatorFlyStraight.h"
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namespace irr
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{
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namespace scene
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{
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//! constructor
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CSceneNodeAnimatorFlyStraight::CSceneNodeAnimatorFlyStraight(const core::vector3df& startPoint,
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const core::vector3df& endPoint, u32 timeForWay,
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bool loop, u32 now, bool pingpong)
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: ISceneNodeAnimatorFinishing(now + timeForWay),
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Start(startPoint), End(endPoint), TimeFactor(0.0f),
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TimeForWay(timeForWay), Loop(loop), PingPong(pingpong)
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{
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#ifdef _DEBUG
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setDebugName("CSceneNodeAnimatorFlyStraight");
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#endif
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StartTime = now;
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recalculateIntermediateValues();
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}
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void CSceneNodeAnimatorFlyStraight::recalculateIntermediateValues()
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{
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Vector = End - Start;
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TimeFactor = (f32)Vector.getLength() / TimeForWay;
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Vector.normalize();
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}
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//! animates a scene node
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void CSceneNodeAnimatorFlyStraight::animateNode(ISceneNode* node, u32 timeMs)
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{
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if (!node)
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return;
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u32 t = (timeMs-(StartTime+PauseTimeSum));
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core::vector3df pos;
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if (!Loop && !PingPong && t >= TimeForWay)
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{
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pos = End;
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HasFinished = true;
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}
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else if (!Loop && PingPong && t >= TimeForWay * 2.f )
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{
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pos = Start;
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HasFinished = true;
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}
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else
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{
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f32 phase = fmodf( (f32) t, (f32) TimeForWay );
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core::vector3df rel = Vector * phase * TimeFactor;
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const bool pong = PingPong && fmodf( (f32) t, (f32) TimeForWay*2.f ) >= TimeForWay;
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if ( !pong )
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{
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pos += Start + rel;
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}
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else
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{
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pos = End - rel;
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}
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}
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node->setPosition(pos);
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}
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//! Writes attributes of the scene node animator.
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void CSceneNodeAnimatorFlyStraight::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const
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{
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ISceneNodeAnimatorFinishing::serializeAttributes(out, options);
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out->addVector3d("Start", Start);
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out->addVector3d("End", End);
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out->addInt("TimeForWay", TimeForWay);
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out->addBool("Loop", Loop);
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out->addBool("PingPong", PingPong);
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}
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//! Reads attributes of the scene node animator.
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void CSceneNodeAnimatorFlyStraight::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
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{
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ISceneNodeAnimatorFinishing::deserializeAttributes(in, options);
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Start = in->getAttributeAsVector3d("Start");
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End = in->getAttributeAsVector3d("End");
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TimeForWay = in->getAttributeAsInt("TimeForWay");
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Loop = in->getAttributeAsBool("Loop");
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PingPong = in->getAttributeAsBool("PingPong");
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recalculateIntermediateValues();
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}
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ISceneNodeAnimator* CSceneNodeAnimatorFlyStraight::createClone(ISceneNode* node, ISceneManager* newManager)
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{
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CSceneNodeAnimatorFlyStraight * newAnimator =
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new CSceneNodeAnimatorFlyStraight(Start, End, TimeForWay, Loop, StartTime, PingPong);
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newAnimator->cloneMembers(this);
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return newAnimator;
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}
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} // end namespace scene
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} // end namespace irr
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