454 lines
11 KiB
C++
454 lines
11 KiB
C++
/**
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* Do Ipo stuff
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*
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* $Id$
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#if defined (__sgi)
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#include <math.h>
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#else
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#include <cmath>
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#endif
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#include "KX_IpoActuator.h"
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#include "KX_GameObject.h"
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#include "FloatValue.h"
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#include "KX_KetsjiEngine.h"
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/* ------------------------------------------------------------------------- */
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/* Type strings */
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/* ------------------------------------------------------------------------- */
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const char *KX_IpoActuator::S_KX_ACT_IPO_PLAY_STRING = "Play";
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const char *KX_IpoActuator::S_KX_ACT_IPO_PINGPONG_STRING = "PingPong";
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const char *KX_IpoActuator::S_KX_ACT_IPO_FLIPPER_STRING = "Flipper";
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const char *KX_IpoActuator::S_KX_ACT_IPO_LOOPSTOP_STRING = "LoopStop";
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const char *KX_IpoActuator::S_KX_ACT_IPO_LOOPEND_STRING = "LoopEnd";
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const char *KX_IpoActuator::S_KX_ACT_IPO_KEY2KEY_STRING = "Key2key";
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const char *KX_IpoActuator::S_KX_ACT_IPO_FROM_PROP_STRING = "FromProp";
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/* ------------------------------------------------------------------------- */
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/* Native functions */
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/* ------------------------------------------------------------------------- */
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KX_IpoActuator::KX_IpoActuator(SCA_IObject* gameobj,
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const STR_String& propname,
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const STR_String& framePropname,
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float starttime,
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float endtime,
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bool recurse,
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int acttype,
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bool ipo_as_force,
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bool ipo_add,
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bool ipo_local)
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: SCA_IActuator(gameobj, KX_ACT_IPO),
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m_bNegativeEvent(false),
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m_startframe (starttime),
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m_endframe(endtime),
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m_recurse(recurse),
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m_localtime(starttime),
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m_direction(1),
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m_propname(propname),
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m_framepropname(framePropname),
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m_ipo_as_force(ipo_as_force),
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m_ipo_add(ipo_add),
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m_ipo_local(ipo_local),
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m_type(acttype)
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{
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m_starttime = -2.0*fabs(m_endframe - m_startframe) - 1.0;
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m_bIpoPlaying = false;
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}
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void KX_IpoActuator::SetStart(float starttime)
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{
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m_startframe=starttime;
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}
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void KX_IpoActuator::SetEnd(float endtime)
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{
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m_endframe=endtime;
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}
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bool KX_IpoActuator::ClampLocalTime()
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{
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if (m_startframe < m_endframe)
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{
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if (m_localtime < m_startframe)
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{
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m_localtime = m_startframe;
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return true;
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}
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else if (m_localtime > m_endframe)
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{
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m_localtime = m_endframe;
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return true;
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}
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} else {
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if (m_localtime > m_startframe)
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{
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m_localtime = m_startframe;
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return true;
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}
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else if (m_localtime < m_endframe)
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{
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m_localtime = m_endframe;
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return true;
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}
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}
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return false;
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}
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void KX_IpoActuator::SetStartTime(float curtime)
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{
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float direction = m_startframe < m_endframe ? 1.0f : -1.0f;
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if (m_direction > 0)
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m_starttime = curtime - direction*(m_localtime - m_startframe)/KX_KetsjiEngine::GetAnimFrameRate();
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else
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m_starttime = curtime - direction*(m_endframe - m_localtime)/KX_KetsjiEngine::GetAnimFrameRate();
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}
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void KX_IpoActuator::SetLocalTime(float curtime)
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{
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float delta_time = (curtime - m_starttime)*KX_KetsjiEngine::GetAnimFrameRate();
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// negative delta_time is caused by floating point inaccuracy
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// perhaps the inaccuracy could be reduced a bit
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if ((m_localtime==m_startframe || m_localtime==m_endframe) && delta_time<0.0)
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{
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delta_time = 0.0;
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}
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if (m_endframe < m_startframe)
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delta_time = -delta_time;
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if (m_direction > 0)
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m_localtime = m_startframe + delta_time;
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else
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m_localtime = m_endframe - delta_time;
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}
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bool KX_IpoActuator::Update(double curtime, bool frame)
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{
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// result = true if animation has to be continued, false if animation stops
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// maybe there are events for us in the queue !
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bool bNegativeEvent = false;
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bool numevents = false;
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bool bIpoStart = false;
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curtime -= KX_KetsjiEngine::GetSuspendedDelta();
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if (frame)
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{
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numevents = m_posevent || m_negevent;
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bNegativeEvent = IsNegativeEvent();
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RemoveAllEvents();
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}
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float start_smaller_then_end = ( m_startframe < m_endframe ? 1.0f : -1.0f);
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bool result=true;
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if (!bNegativeEvent)
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{
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if (m_starttime < -2.0f*start_smaller_then_end*(m_endframe - m_startframe))
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{
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// start for all Ipo, initial start for LOOP_STOP
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m_starttime = curtime;
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m_bIpoPlaying = true;
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bIpoStart = true;
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}
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}
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switch ((IpoActType)m_type)
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{
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case KX_ACT_IPO_PLAY:
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{
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// Check if playing forwards. result = ! finished
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if (start_smaller_then_end > 0.f)
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result = (m_localtime < m_endframe && m_bIpoPlaying);
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else
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result = (m_localtime > m_endframe && m_bIpoPlaying);
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if (result)
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{
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SetLocalTime(curtime);
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/* Perform clamping */
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ClampLocalTime();
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if (bIpoStart)
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((KX_GameObject*)GetParent())->InitIPO(m_ipo_as_force, m_ipo_add, m_ipo_local);
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((KX_GameObject*)GetParent())->UpdateIPO(m_localtime,m_recurse);
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} else
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{
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m_localtime=m_startframe;
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m_direction=1;
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}
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break;
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}
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case KX_ACT_IPO_PINGPONG:
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{
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result = true;
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if (bNegativeEvent && !m_bIpoPlaying)
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result = false;
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else
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SetLocalTime(curtime);
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if (ClampLocalTime())
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{
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result = false;
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m_direction = -m_direction;
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}
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if (bIpoStart && m_direction > 0)
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((KX_GameObject*)GetParent())->InitIPO(m_ipo_as_force, m_ipo_add, m_ipo_local);
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((KX_GameObject*)GetParent())->UpdateIPO(m_localtime,m_recurse);
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break;
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}
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case KX_ACT_IPO_FLIPPER:
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{
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if (bNegativeEvent && !m_bIpoPlaying)
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result = false;
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if (numevents)
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{
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float oldDirection = m_direction;
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if (bNegativeEvent)
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m_direction = -1;
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else
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m_direction = 1;
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if (m_direction != oldDirection)
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// changing direction, reset start time
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SetStartTime(curtime);
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}
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SetLocalTime(curtime);
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if (ClampLocalTime() && m_localtime == m_startframe)
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result = false;
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if (bIpoStart)
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((KX_GameObject*)GetParent())->InitIPO(m_ipo_as_force, m_ipo_add, m_ipo_local);
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((KX_GameObject*)GetParent())->UpdateIPO(m_localtime,m_recurse);
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break;
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}
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case KX_ACT_IPO_LOOPSTOP:
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{
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if (numevents)
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{
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if (bNegativeEvent)
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{
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result = false;
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m_bNegativeEvent = false;
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numevents = false;
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}
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if (!m_bIpoPlaying)
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{
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// Ipo was stopped, make sure we will restart from where it stopped
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SetStartTime(curtime);
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if (!bNegativeEvent)
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// positive signal will restart the Ipo
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m_bIpoPlaying = true;
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}
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} // fall through to loopend, and quit the ipo animation immediatly
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}
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case KX_ACT_IPO_LOOPEND:
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{
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if (numevents){
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if (bNegativeEvent && m_bIpoPlaying){
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m_bNegativeEvent = true;
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}
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}
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if (bNegativeEvent && !m_bIpoPlaying){
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result = false;
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}
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else
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{
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if (m_localtime*start_smaller_then_end < m_endframe*start_smaller_then_end)
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{
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SetLocalTime(curtime);
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}
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else{
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if (!m_bNegativeEvent){
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/* Perform wraparound */
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SetLocalTime(curtime);
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if (start_smaller_then_end > 0.f)
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m_localtime = m_startframe + fmod(m_localtime - m_startframe, m_endframe - m_startframe);
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else
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m_localtime = m_startframe - fmod(m_startframe - m_localtime, m_startframe - m_endframe);
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SetStartTime(curtime);
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bIpoStart = true;
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}
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else
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{
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/* Perform clamping */
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m_localtime=m_endframe;
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result = false;
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m_bNegativeEvent = false;
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}
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}
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}
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if (m_bIpoPlaying && bIpoStart)
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((KX_GameObject*)GetParent())->InitIPO(m_ipo_as_force, m_ipo_add, m_ipo_local);
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((KX_GameObject*)GetParent())->UpdateIPO(m_localtime,m_recurse);
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break;
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}
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case KX_ACT_IPO_KEY2KEY:
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{
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// not implemented yet
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result = false;
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break;
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}
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case KX_ACT_IPO_FROM_PROP:
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{
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result = !bNegativeEvent;
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CValue* propval = GetParent()->GetProperty(m_propname);
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if (propval)
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{
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m_localtime = propval->GetNumber();
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if (bIpoStart)
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((KX_GameObject*)GetParent())->InitIPO(m_ipo_as_force, m_ipo_add, m_ipo_local);
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((KX_GameObject*)GetParent())->UpdateIPO(m_localtime,m_recurse);
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} else
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{
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result = false;
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}
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break;
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}
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default:
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result = false;
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}
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/* Set the property if its defined */
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if (m_framepropname[0] != '\0') {
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CValue* propowner = GetParent();
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CValue* oldprop = propowner->GetProperty(m_framepropname);
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CValue* newval = new CFloatValue(m_localtime);
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if (oldprop) {
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oldprop->SetValue(newval);
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} else {
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propowner->SetProperty(m_framepropname, newval);
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}
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newval->Release();
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}
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if (!result)
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{
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if (m_type != KX_ACT_IPO_LOOPSTOP)
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m_starttime = -2.0*start_smaller_then_end*(m_endframe - m_startframe) - 1.0;
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m_bIpoPlaying = false;
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}
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return result;
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}
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int KX_IpoActuator::string2mode(char* modename) {
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IpoActType res = KX_ACT_IPO_NODEF;
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if (strcmp(modename, S_KX_ACT_IPO_PLAY_STRING)==0) {
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res = KX_ACT_IPO_PLAY;
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} else if (strcmp(modename, S_KX_ACT_IPO_PINGPONG_STRING)==0) {
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res = KX_ACT_IPO_PINGPONG;
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} else if (strcmp(modename, S_KX_ACT_IPO_FLIPPER_STRING)==0) {
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res = KX_ACT_IPO_FLIPPER;
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} else if (strcmp(modename, S_KX_ACT_IPO_LOOPSTOP_STRING)==0) {
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res = KX_ACT_IPO_LOOPSTOP;
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} else if (strcmp(modename, S_KX_ACT_IPO_LOOPEND_STRING)==0) {
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res = KX_ACT_IPO_LOOPEND;
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} else if (strcmp(modename, S_KX_ACT_IPO_KEY2KEY_STRING)==0) {
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res = KX_ACT_IPO_KEY2KEY;
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} else if (strcmp(modename, S_KX_ACT_IPO_FROM_PROP_STRING)==0) {
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res = KX_ACT_IPO_FROM_PROP;
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}
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return res;
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}
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#ifndef DISABLE_PYTHON
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/* ------------------------------------------------------------------------- */
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/* Python functions */
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/* ------------------------------------------------------------------------- */
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/* Integration hooks ------------------------------------------------------- */
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PyTypeObject KX_IpoActuator::Type = {
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PyVarObject_HEAD_INIT(NULL, 0)
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"KX_IpoActuator",
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sizeof(PyObjectPlus_Proxy),
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0,
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py_base_dealloc,
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0,
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0,
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0,
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0,
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py_base_repr,
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0,0,0,0,0,0,0,0,0,
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Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
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0,0,0,0,0,0,0,
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Methods,
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0,
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0,
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&SCA_IActuator::Type,
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0,0,0,0,0,0,
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py_base_new
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};
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PyMethodDef KX_IpoActuator::Methods[] = {
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{NULL,NULL} //Sentinel
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};
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PyAttributeDef KX_IpoActuator::Attributes[] = {
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KX_PYATTRIBUTE_FLOAT_RW("frameStart", 0, 300000, KX_IpoActuator, m_startframe),
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KX_PYATTRIBUTE_FLOAT_RW("frameEnd", 0, 300000, KX_IpoActuator, m_endframe),
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KX_PYATTRIBUTE_STRING_RW("propName", 0, 64, false, KX_IpoActuator, m_propname),
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KX_PYATTRIBUTE_STRING_RW("framePropName", 0, 64, false, KX_IpoActuator, m_framepropname),
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KX_PYATTRIBUTE_INT_RW("mode", KX_ACT_IPO_NODEF+1, KX_ACT_IPO_MAX-1, true, KX_IpoActuator, m_type),
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KX_PYATTRIBUTE_BOOL_RW("useIpoAsForce", KX_IpoActuator, m_ipo_as_force),
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KX_PYATTRIBUTE_BOOL_RW("useIpoAdd", KX_IpoActuator, m_ipo_add),
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KX_PYATTRIBUTE_BOOL_RW("useIpoLocal", KX_IpoActuator, m_ipo_local),
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KX_PYATTRIBUTE_BOOL_RW("useChildren", KX_IpoActuator, m_recurse),
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{ NULL } //Sentinel
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};
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#endif // DISABLE_PYTHON
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/* eof */
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