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blender/source/gameengine/Ketsji/KX_IpoActuator.cpp

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/**
* Do Ipo stuff
*
* $Id$
*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
#if defined (__sgi)
#include <math.h>
#else
#include <cmath>
#endif
#include "KX_IpoActuator.h"
#include "KX_GameObject.h"
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "KX_KetsjiEngine.h"
/* ------------------------------------------------------------------------- */
/* Type strings */
/* ------------------------------------------------------------------------- */
STR_String KX_IpoActuator::S_KX_ACT_IPO_PLAY_STRING = "Play";
STR_String KX_IpoActuator::S_KX_ACT_IPO_PINGPONG_STRING = "PingPong";
STR_String KX_IpoActuator::S_KX_ACT_IPO_FLIPPER_STRING = "Flipper";
STR_String KX_IpoActuator::S_KX_ACT_IPO_LOOPSTOP_STRING = "LoopStop";
STR_String KX_IpoActuator::S_KX_ACT_IPO_LOOPEND_STRING = "LoopEnd";
STR_String KX_IpoActuator::S_KX_ACT_IPO_KEY2KEY_STRING = "Key2key";
STR_String KX_IpoActuator::S_KX_ACT_IPO_FROM_PROP_STRING = "FromProp";
/* ------------------------------------------------------------------------- */
/* Native functions */
/* ------------------------------------------------------------------------- */
KX_IpoActuator::KX_IpoActuator(SCA_IObject* gameobj,
const STR_String& propname,
float starttime,
float endtime,
bool recurse,
int acttype,
bool ipo_as_force,
bool ipo_add,
bool ipo_local,
PyTypeObject* T)
: SCA_IActuator(gameobj,T),
m_bNegativeEvent(false),
m_startframe (starttime),
m_endframe(endtime),
m_recurse(recurse),
m_localtime(starttime),
m_direction(1),
m_propname(propname),
m_ipo_as_force(ipo_as_force),
m_ipo_add(ipo_add),
m_ipo_local(ipo_local),
m_type((IpoActType)acttype)
{
m_starttime = -2.0*fabs(m_endframe - m_startframe) - 1.0;
m_bIpoPlaying = false;
}
void KX_IpoActuator::SetStart(float starttime)
{
m_startframe=starttime;
}
void KX_IpoActuator::SetEnd(float endtime)
{
m_endframe=endtime;
}
bool KX_IpoActuator::ClampLocalTime()
{
if (m_startframe < m_endframe)
{
if (m_localtime < m_startframe)
{
m_localtime = m_startframe;
return true;
}
else if (m_localtime > m_endframe)
{
m_localtime = m_endframe;
return true;
}
} else {
if (m_localtime > m_startframe)
{
m_localtime = m_startframe;
return true;
}
else if (m_localtime < m_endframe)
{
m_localtime = m_endframe;
return true;
}
}
return false;
}
void KX_IpoActuator::SetStartTime(float curtime)
{
float direction = m_startframe < m_endframe ? 1.0f : -1.0f;
curtime = curtime - KX_KetsjiEngine::GetSuspendedDelta();
if (m_direction > 0)
m_starttime = curtime - direction*(m_localtime - m_startframe)/KX_KetsjiEngine::GetAnimFrameRate();
else
m_starttime = curtime - direction*(m_endframe - m_localtime)/KX_KetsjiEngine::GetAnimFrameRate();
}
void KX_IpoActuator::SetLocalTime(float curtime)
{
float delta_time = ((curtime - m_starttime) - KX_KetsjiEngine::GetSuspendedDelta())*KX_KetsjiEngine::GetAnimFrameRate();
// negative delta_time is caused by floating point inaccuracy
// perhaps the inaccuracy could be reduced a bit
if ((m_localtime==m_startframe || m_localtime==m_endframe) && delta_time<0.0)
{
delta_time = 0.0;
}
if (m_endframe < m_startframe)
delta_time = -delta_time;
if (m_direction > 0)
m_localtime = m_startframe + delta_time;
else
m_localtime = m_endframe - delta_time;
}
bool KX_IpoActuator::Update(double curtime, bool frame)
{
// result = true if animation has to be continued, false if animation stops
// maybe there are events for us in the queue !
bool bNegativeEvent = false;
int numevents = 0;
bool bIpoStart = false;
if (frame)
{
numevents = m_events.size();
bNegativeEvent = IsNegativeEvent();
RemoveAllEvents();
}
float start_smaller_then_end = ( m_startframe < m_endframe ? 1.0f : -1.0f);
bool result=true;
if (!bNegativeEvent)
{
if (m_starttime < -2.0f*start_smaller_then_end*(m_endframe - m_startframe))
{
// start for all Ipo, initial start for LOOP_STOP
m_starttime = curtime - KX_KetsjiEngine::GetSuspendedDelta();
m_bIpoPlaying = true;
bIpoStart = true;
}
}
switch (m_type)
{
case KX_ACT_IPO_PLAY:
{
// Check if playing forwards. result = ! finished
if (start_smaller_then_end > 0.f)
result = (m_localtime < m_endframe && m_bIpoPlaying);
else
result = (m_localtime > m_endframe && m_bIpoPlaying);
if (result)
{
SetLocalTime(curtime);
/* Perform clamping */
ClampLocalTime();
if (bIpoStart)
((KX_GameObject*)GetParent())->InitIPO(m_ipo_as_force, m_ipo_add, m_ipo_local);
((KX_GameObject*)GetParent())->UpdateIPO(m_localtime,m_recurse);
} else
{
m_localtime=m_startframe;
m_direction=1;
}
break;
}
case KX_ACT_IPO_PINGPONG:
{
result = true;
if (bNegativeEvent && !m_bIpoPlaying)
result = false;
else
SetLocalTime(curtime);
if (ClampLocalTime())
{
result = false;
m_direction = -m_direction;
}
if (bIpoStart && m_direction > 0)
((KX_GameObject*)GetParent())->InitIPO(m_ipo_as_force, m_ipo_add, m_ipo_local);
((KX_GameObject*)GetParent())->UpdateIPO(m_localtime,m_recurse);
break;
}
case KX_ACT_IPO_FLIPPER:
{
if (bNegativeEvent && !m_bIpoPlaying)
result = false;
if (numevents)
{
float oldDirection = m_direction;
if (bNegativeEvent)
m_direction = -1;
else
m_direction = 1;
if (m_direction != oldDirection)
// changing direction, reset start time
SetStartTime(curtime);
}
SetLocalTime(curtime);
if (ClampLocalTime() && m_localtime == m_startframe)
result = false;
if (bIpoStart)
((KX_GameObject*)GetParent())->InitIPO(m_ipo_as_force, m_ipo_add, m_ipo_local);
((KX_GameObject*)GetParent())->UpdateIPO(m_localtime,m_recurse);
break;
}
case KX_ACT_IPO_LOOPSTOP:
{
if (numevents)
{
if (bNegativeEvent)
{
result = false;
m_bNegativeEvent = false;
numevents = 0;
}
if (!m_bIpoPlaying)
{
// Ipo was stopped, make sure we will restart from where it stopped
SetStartTime(curtime);
if (!bNegativeEvent)
// positive signal will restart the Ipo
m_bIpoPlaying = true;
}
} // fall through to loopend, and quit the ipo animation immediatly
}
case KX_ACT_IPO_LOOPEND:
{
if (numevents){
if (bNegativeEvent && m_bIpoPlaying){
m_bNegativeEvent = true;
}
}
if (bNegativeEvent && !m_bIpoPlaying){
result = false;
}
else
{
if (m_localtime*start_smaller_then_end < m_endframe*start_smaller_then_end)
{
SetLocalTime(curtime);
}
else{
if (!m_bNegativeEvent){
/* Perform wraparound */
SetLocalTime(curtime);
if (start_smaller_then_end > 0.f)
m_localtime = m_startframe + fmod(m_localtime - m_startframe, m_endframe - m_startframe);
else
m_localtime = m_startframe - fmod(m_startframe - m_localtime, m_startframe - m_endframe);
SetStartTime(curtime);
bIpoStart = true;
}
else
{
/* Perform clamping */
m_localtime=m_endframe;
result = false;
m_bNegativeEvent = false;
}
}
}
if (m_bIpoPlaying && bIpoStart)
((KX_GameObject*)GetParent())->InitIPO(m_ipo_as_force, m_ipo_add, m_ipo_local);
((KX_GameObject*)GetParent())->UpdateIPO(m_localtime,m_recurse);
break;
}
case KX_ACT_IPO_KEY2KEY:
{
// not implemented yet
result = false;
break;
}
case KX_ACT_IPO_FROM_PROP:
{
result = !bNegativeEvent;
CValue* propval = GetParent()->GetProperty(m_propname);
if (propval)
{
m_localtime = propval->GetNumber();
if (bIpoStart)
((KX_GameObject*)GetParent())->InitIPO(m_ipo_as_force, m_ipo_add, m_ipo_local);
((KX_GameObject*)GetParent())->UpdateIPO(m_localtime,m_recurse);
} else
{
result = false;
}
break;
}
default:
result = false;
}
if (!result)
{
if (m_type != KX_ACT_IPO_LOOPSTOP)
m_starttime = -2.0*start_smaller_then_end*(m_endframe - m_startframe) - 1.0;
m_bIpoPlaying = false;
}
return result;
}
KX_IpoActuator::IpoActType KX_IpoActuator::string2mode(char* modename) {
IpoActType res = KX_ACT_IPO_NODEF;
if (modename == S_KX_ACT_IPO_PLAY_STRING) {
res = KX_ACT_IPO_PLAY;
} else if (modename == S_KX_ACT_IPO_PINGPONG_STRING) {
res = KX_ACT_IPO_PINGPONG;
} else if (modename == S_KX_ACT_IPO_FLIPPER_STRING) {
res = KX_ACT_IPO_FLIPPER;
} else if (modename == S_KX_ACT_IPO_LOOPSTOP_STRING) {
res = KX_ACT_IPO_LOOPSTOP;
} else if (modename == S_KX_ACT_IPO_LOOPEND_STRING) {
res = KX_ACT_IPO_LOOPEND;
} else if (modename == S_KX_ACT_IPO_KEY2KEY_STRING) {
res = KX_ACT_IPO_KEY2KEY;
} else if (modename == S_KX_ACT_IPO_FROM_PROP_STRING) {
res = KX_ACT_IPO_FROM_PROP;
}
return res;
}
/* ------------------------------------------------------------------------- */
/* Python functions */
/* ------------------------------------------------------------------------- */
/* Integration hooks ------------------------------------------------------- */
PyTypeObject KX_IpoActuator::Type = {
PyObject_HEAD_INIT(&PyType_Type)
0,
"KX_IpoActuator",
sizeof(KX_IpoActuator),
0,
PyDestructor,
0,
__getattr,
__setattr,
0, //&MyPyCompare,
__repr,
0, //&cvalue_as_number,
0,
0,
0,
0
};
PyParentObject KX_IpoActuator::Parents[] = {
&KX_IpoActuator::Type,
&SCA_IActuator::Type,
&SCA_ILogicBrick::Type,
&CValue::Type,
NULL
};
PyMethodDef KX_IpoActuator::Methods[] = {
{"set", (PyCFunction) KX_IpoActuator::sPySet,
METH_VARARGS, Set_doc},
{"setProperty", (PyCFunction) KX_IpoActuator::sPySetProperty,
METH_VARARGS, SetProperty_doc},
{"setStart", (PyCFunction) KX_IpoActuator::sPySetStart,
METH_VARARGS, SetStart_doc},
{"getStart", (PyCFunction) KX_IpoActuator::sPyGetStart,
METH_NOARGS, GetStart_doc},
{"setEnd", (PyCFunction) KX_IpoActuator::sPySetEnd,
METH_VARARGS, SetEnd_doc},
{"getEnd", (PyCFunction) KX_IpoActuator::sPyGetEnd,
METH_NOARGS, GetEnd_doc},
{"setIpoAsForce", (PyCFunction) KX_IpoActuator::sPySetIpoAsForce,
METH_VARARGS, SetIpoAsForce_doc},
{"getIpoAsForce", (PyCFunction) KX_IpoActuator::sPyGetIpoAsForce,
METH_NOARGS, GetIpoAsForce_doc},
{"setIpoAdd", (PyCFunction) KX_IpoActuator::sPySetIpoAdd,
METH_VARARGS, SetIpoAdd_doc},
{"getIpoAdd", (PyCFunction) KX_IpoActuator::sPyGetIpoAdd,
METH_NOARGS, GetIpoAdd_doc},
{"setType", (PyCFunction) KX_IpoActuator::sPySetType,
METH_VARARGS, SetType_doc},
{"getType", (PyCFunction) KX_IpoActuator::sPyGetType,
METH_NOARGS, GetType_doc},
{"setForceIpoActsLocal", (PyCFunction) KX_IpoActuator::sPySetForceIpoActsLocal,
METH_VARARGS, SetForceIpoActsLocal_doc},
{"getForceIpoActsLocal", (PyCFunction) KX_IpoActuator::sPyGetForceIpoActsLocal,
METH_NOARGS, GetForceIpoActsLocal_doc},
{NULL,NULL} //Sentinel
};
PyObject* KX_IpoActuator::_getattr(const STR_String& attr) {
_getattr_up(SCA_IActuator);
}
/* set --------------------------------------------------------------------- */
char KX_IpoActuator::Set_doc[] =
"set(type, startframe, endframe, mode?)\n"
"\t - type: Play, PingPong, Flipper, LoopStop, LoopEnd or FromProp (string)\n"
"\t - startframe: first frame to use (int)\n"
"\t - endframe : last frame to use (int)\n"
"\t - mode? : special mode (0=normal, 1=interpret location as force, 2=additive)"
"\tSet the properties of the actuator.\n";
PyObject* KX_IpoActuator::PySet(PyObject* self,
PyObject* args,
PyObject* kwds) {
/* sets modes PLAY, PINGPONG, FLIPPER, LOOPSTOP, LOOPEND */
/* arg 1 = mode string, arg 2 = startframe, arg3 = stopframe, */
/* arg4 = force toggle */
char* mode;
int forceToggle;
IpoActType modenum;
int startFrame, stopFrame;
if(!PyArg_ParseTuple(args, "siii", &mode, &startFrame,
&stopFrame, &forceToggle)) {
PyErr_SetString(PyExc_TypeError, "Invalid arguments");
return NULL;
}
modenum = string2mode(mode);
switch (modenum) {
case KX_ACT_IPO_PLAY:
case KX_ACT_IPO_PINGPONG:
case KX_ACT_IPO_FLIPPER:
case KX_ACT_IPO_LOOPSTOP:
case KX_ACT_IPO_LOOPEND:
m_type = modenum;
m_startframe = startFrame;
m_endframe = stopFrame;
m_ipo_as_force = forceToggle == 1;
m_ipo_add = forceToggle == 2;
break;
default:
; /* error */
}
Py_Return;
}
/* set property ----------------------------------------------------------- */
char KX_IpoActuator::SetProperty_doc[] =
"setProperty(propname)\n"
"\t - propname: name of the property (string)\n"
"\tSet the property to be used in FromProp mode.\n";
PyObject* KX_IpoActuator::PySetProperty(PyObject* self,
PyObject* args,
PyObject* kwds) {
/* mode is implicit here, but not supported yet... */
/* args: property */
char *propertyName;
if(!PyArg_ParseTuple(args, "s", &propertyName)) {
PyErr_SetString(PyExc_TypeError, "Invalid arguments");
return NULL;
}
m_propname = propertyName;
Py_Return;
}
/* 4. setStart: */
char KX_IpoActuator::SetStart_doc[] =
"setStart(frame)\n"
"\t - frame: first frame to use (int)\n"
"\tSet the frame from which the ipo starts playing.\n";
PyObject* KX_IpoActuator::PySetStart(PyObject* self,
PyObject* args,
PyObject* kwds) {
float startArg;
if(!PyArg_ParseTuple(args, "f", &startArg)) {
PyErr_SetString(PyExc_TypeError, "Invalid arguments");
return NULL;
}
m_startframe = startArg;
Py_Return;
}
/* 5. getStart: */
char KX_IpoActuator::GetStart_doc[] =
"getStart()\n"
"\tReturns the frame from which the ipo starts playing.\n";
PyObject* KX_IpoActuator::PyGetStart(PyObject* self) {
return PyFloat_FromDouble(m_startframe);
}
/* 6. setEnd: */
char KX_IpoActuator::SetEnd_doc[] =
"setEnd(frame)\n"
"\t - frame: last frame to use (int)\n"
"\tSet the frame at which the ipo stops playing.\n";
PyObject* KX_IpoActuator::PySetEnd(PyObject* self,
PyObject* args,
PyObject* kwds) {
float endArg;
if(!PyArg_ParseTuple(args, "f", &endArg)) {
PyErr_SetString(PyExc_TypeError, "Invalid arguments");
return NULL;
}
m_endframe = endArg;
Py_Return;
}
/* 7. getEnd: */
char KX_IpoActuator::GetEnd_doc[] =
"getEnd()\n"
"\tReturns the frame at which the ipo stops playing.\n";
PyObject* KX_IpoActuator::PyGetEnd(PyObject* self) {
return PyFloat_FromDouble(m_endframe);
}
/* 6. setIpoAsForce: */
char KX_IpoActuator::SetIpoAsForce_doc[] =
"setIpoAsForce(force?)\n"
"\t - force? : interpret this ipo as a force? (KX_TRUE, KX_FALSE)\n"
"\tSet whether to interpret the ipo as a force rather than a displacement.\n";
PyObject* KX_IpoActuator::PySetIpoAsForce(PyObject* self,
PyObject* args,
PyObject* kwds) {
int boolArg;
if (!PyArg_ParseTuple(args, "i", &boolArg)) {
PyErr_SetString(PyExc_TypeError, "Invalid arguments");
return NULL;
}
m_ipo_as_force = PyArgToBool(boolArg);
if (m_ipo_as_force)
m_ipo_add = false;
Py_Return;
}
/* 7. getIpoAsForce: */
char KX_IpoActuator::GetIpoAsForce_doc[] =
"getIpoAsForce()\n"
"\tReturns whether to interpret the ipo as a force rather than a displacement.\n";
PyObject* KX_IpoActuator::PyGetIpoAsForce(PyObject* self) {
return BoolToPyArg(m_ipo_as_force);
}
/* 6. setIpoAsForce: */
char KX_IpoActuator::SetIpoAdd_doc[] =
"setIpoAdd(add?)\n"
"\t - add? : add flag (KX_TRUE, KX_FALSE)\n"
"\tSet whether to interpret the ipo as additive rather than absolute.\n";
PyObject* KX_IpoActuator::PySetIpoAdd(PyObject* self,
PyObject* args,
PyObject* kwds) {
int boolArg;
if (!PyArg_ParseTuple(args, "i", &boolArg)) {
PyErr_SetString(PyExc_TypeError, "Invalid arguments");
return NULL;
}
m_ipo_add = PyArgToBool(boolArg);
if (m_ipo_add)
m_ipo_as_force = false;
Py_Return;
}
/* 7. getIpoAsForce: */
char KX_IpoActuator::GetIpoAdd_doc[] =
"getIpoAsAdd()\n"
"\tReturns whether to interpret the ipo as additive rather than absolute.\n";
PyObject* KX_IpoActuator::PyGetIpoAdd(PyObject* self) {
return BoolToPyArg(m_ipo_add);
}
/* 8. setType: */
char KX_IpoActuator::SetType_doc[] =
"setType(mode)\n"
"\t - mode: Play, PingPong, Flipper, LoopStop, LoopEnd or FromProp (string)\n"
"\tSet the operation mode of the actuator.\n";
PyObject* KX_IpoActuator::PySetType(PyObject* self,
PyObject* args,
PyObject* kwds) {
int typeArg;
if (!PyArg_ParseTuple(args, "i", &typeArg)) {
PyErr_SetString(PyExc_TypeError, "Invalid arguments");
return NULL;
}
if ( (typeArg > KX_ACT_IPO_NODEF)
&& (typeArg < KX_ACT_IPO_KEY2KEY) ) {
m_type = (IpoActType) typeArg;
}
Py_Return;
}
/* 9. getType: */
char KX_IpoActuator::GetType_doc[] =
"getType()\n"
"\tReturns the operation mode of the actuator.\n";
PyObject* KX_IpoActuator::PyGetType(PyObject* self) {
return PyInt_FromLong(m_type);
}
/* 10. setForceIpoActsLocal: */
char KX_IpoActuator::SetForceIpoActsLocal_doc[] =
"setForceIpoActsLocal(local?)\n"
"\t - local? : Apply the ipo-as-force in the object's local\n"
"\t coordinates? (KX_TRUE, KX_FALSE)\n"
"\tSet whether to apply the force in the object's local\n"
"\tcoordinates rather than the world global coordinates.\n";
PyObject* KX_IpoActuator::PySetForceIpoActsLocal(PyObject* self,
PyObject* args,
PyObject* kwds) {
int boolArg;
if (!PyArg_ParseTuple(args, "i", &boolArg)) {
PyErr_SetString(PyExc_TypeError, "Invalid arguments");
return NULL;
}
m_ipo_local = PyArgToBool(boolArg);
Py_Return;
}
/* 11. getForceIpoActsLocal: */
char KX_IpoActuator::GetForceIpoActsLocal_doc[] =
"getForceIpoActsLocal()\n"
"\tReturn whether to apply the force in the object's local\n"
"\tcoordinates rather than the world global coordinates.\n";
PyObject* KX_IpoActuator::PyGetForceIpoActsLocal(PyObject* self) {
return BoolToPyArg(m_ipo_local);
}
/* eof */
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