1 // animation.cxx - classes to manage model animation.
2 // Written by David Megginson, started 2002.
4 // This file is in the Public Domain, and comes with no warranty.
7 #include <string.h> // for strcmp()
14 #include <simgear/math/interpolater.hxx>
15 #include <simgear/props/condition.hxx>
16 #include <simgear/props/props.hxx>
17 #include <simgear/math/sg_random.h>
19 #include "animation.hxx"
20 #include "custtrans.hxx"
21 #include "personality.hxx"
24 ////////////////////////////////////////////////////////////////////////
25 // Static utility functions.
26 ////////////////////////////////////////////////////////////////////////
29 * Set up the transform matrix for a spin or rotation.
32 set_rotation (sgMat4 &matrix, double position_deg,
33 sgVec3 ¢er, sgVec3 &axis)
35 float temp_angle = -position_deg * SG_DEGREES_TO_RADIANS ;
37 float s = (float) sin ( temp_angle ) ;
38 float c = (float) cos ( temp_angle ) ;
39 float t = SG_ONE - c ;
41 // axis was normalized at load time
42 // hint to the compiler to put these into FP registers
47 matrix[0][0] = t * x * x + c ;
48 matrix[0][1] = t * y * x - s * z ;
49 matrix[0][2] = t * z * x + s * y ;
50 matrix[0][3] = SG_ZERO;
52 matrix[1][0] = t * x * y + s * z ;
53 matrix[1][1] = t * y * y + c ;
54 matrix[1][2] = t * z * y - s * x ;
55 matrix[1][3] = SG_ZERO;
57 matrix[2][0] = t * x * z - s * y ;
58 matrix[2][1] = t * y * z + s * x ;
59 matrix[2][2] = t * z * z + c ;
60 matrix[2][3] = SG_ZERO;
62 // hint to the compiler to put these into FP registers
67 matrix[3][0] = x - x*matrix[0][0] - y*matrix[1][0] - z*matrix[2][0];
68 matrix[3][1] = y - x*matrix[0][1] - y*matrix[1][1] - z*matrix[2][1];
69 matrix[3][2] = z - x*matrix[0][2] - y*matrix[1][2] - z*matrix[2][2];
70 matrix[3][3] = SG_ONE;
74 * Set up the transform matrix for a translation.
77 set_translation (sgMat4 &matrix, double position_m, sgVec3 &axis)
80 sgScaleVec3(xyz, axis, position_m);
81 sgMakeTransMat4(matrix, xyz);
85 * Set up the transform matrix for a scale operation.
88 set_scale (sgMat4 &matrix, double x, double y, double z)
90 sgMakeIdentMat4( matrix );
97 * Recursively process all kids to change the alpha values
100 change_alpha( ssgBase *_branch, float _blend )
104 for (i = 0; i < ((ssgBranch *)_branch)->getNumKids(); i++)
105 change_alpha( ((ssgBranch *)_branch)->getKid(i), _blend );
107 if ( !_branch->isAKindOf(ssgTypeLeaf())
108 && !_branch->isAKindOf(ssgTypeVtxTable())
109 && !_branch->isAKindOf(ssgTypeVTable()) )
112 int num_colors = ((ssgLeaf *)_branch)->getNumColours();
113 // unsigned int select_ = (_blend == 1.0) ? false : true;
115 for (i = 0; i < num_colors; i++)
117 // ((ssgSelector *)_branch)->select( select_ );
118 float *color = ((ssgLeaf *)_branch)->getColour(i);
124 * Modify property value by step and scroll settings in texture translations
127 apply_mods(double property, double step, double scroll)
132 double scrollval = 0.0;
134 // calculate scroll amount (for odometer like movement)
135 double remainder = step - fmod(fabs(property), step);
136 if (remainder < scroll) {
137 scrollval = (scroll - remainder) / scroll * step;
140 // apply stepping of input value
142 modprop = ((floor(property/step) * step) + scrollval);
144 modprop = ((ceil(property/step) * step) + scrollval);
153 * Read an interpolation table from properties.
155 static SGInterpTable *
156 read_interpolation_table (SGPropertyNode_ptr props)
158 SGPropertyNode_ptr table_node = props->getNode("interpolation");
159 if (table_node != 0) {
160 SGInterpTable * table = new SGInterpTable();
161 vector<SGPropertyNode_ptr> entries = table_node->getChildren("entry");
162 for (unsigned int i = 0; i < entries.size(); i++)
163 table->addEntry(entries[i]->getDoubleValue("ind", 0.0),
164 entries[i]->getDoubleValue("dep", 0.0));
173 ////////////////////////////////////////////////////////////////////////
174 // Implementation of SGAnimation
175 ////////////////////////////////////////////////////////////////////////
177 // Initialize the static data member
178 double SGAnimation::sim_time_sec = 0.0;
179 SGPersonalityBranch *SGAnimation::current_object = 0;
181 SGAnimation::SGAnimation (SGPropertyNode_ptr props, ssgBranch * branch)
184 _branch->setName(props->getStringValue("name", 0));
187 SGAnimation::~SGAnimation ()
197 SGAnimation::update()
203 SGAnimation::restore()
209 ////////////////////////////////////////////////////////////////////////
210 // Implementation of SGNullAnimation
211 ////////////////////////////////////////////////////////////////////////
213 SGNullAnimation::SGNullAnimation (SGPropertyNode_ptr props)
214 : SGAnimation(props, new ssgBranch)
218 SGNullAnimation::~SGNullAnimation ()
224 ////////////////////////////////////////////////////////////////////////
225 // Implementation of SGRangeAnimation
226 ////////////////////////////////////////////////////////////////////////
228 SGRangeAnimation::SGRangeAnimation (SGPropertyNode *prop_root,
229 SGPropertyNode_ptr props)
230 : SGAnimation(props, new ssgRangeSelector),
231 _min(0.0), _max(0.0), _min_factor(1.0), _max_factor(1.0),
234 SGPropertyNode_ptr node = props->getChild("condition");
236 _condition = sgReadCondition(prop_root, node);
240 node = props->getChild( "min-factor" );
242 _min_factor = props->getFloatValue("min-factor", 1.0);
244 node = props->getChild( "max-factor" );
246 _max_factor = props->getFloatValue("max-factor", 1.0);
248 node = props->getChild( "min-property" );
250 _min_prop = (SGPropertyNode *)prop_root->getNode(node->getStringValue(), true);
251 ranges[0] = _min_prop->getFloatValue() * _min_factor;
253 _min = props->getFloatValue("min-m", 0);
254 ranges[0] = _min * _min_factor;
256 node = props->getChild( "max-property" );
258 _max_prop = (SGPropertyNode *)prop_root->getNode(node->getStringValue(), true);
259 ranges[1] = _max_prop->getFloatValue() * _max_factor;
261 _max = props->getFloatValue("max-m", 0);
262 ranges[1] = _max * _max_factor;
264 ((ssgRangeSelector *)_branch)->setRanges(ranges, 2);
267 SGRangeAnimation::~SGRangeAnimation ()
272 SGRangeAnimation::update()
275 if ( _condition == 0 || _condition->test() ) {
276 if (_min_prop != 0) {
277 ranges[0] = _min_prop->getFloatValue() * _min_factor;
279 ranges[0] = _min * _min_factor;
281 if (_max_prop != 0) {
282 ranges[1] = _max_prop->getFloatValue() * _max_factor;
284 ranges[1] = _max * _max_factor;
288 ranges[1] = 1000000000.f;
290 ((ssgRangeSelector *)_branch)->setRanges(ranges, 2);
296 ////////////////////////////////////////////////////////////////////////
297 // Implementation of SGBillboardAnimation
298 ////////////////////////////////////////////////////////////////////////
300 SGBillboardAnimation::SGBillboardAnimation (SGPropertyNode_ptr props)
301 : SGAnimation(props, new ssgCutout(props->getBoolValue("spherical", true)))
305 SGBillboardAnimation::~SGBillboardAnimation ()
311 ////////////////////////////////////////////////////////////////////////
312 // Implementation of SGSelectAnimation
313 ////////////////////////////////////////////////////////////////////////
315 SGSelectAnimation::SGSelectAnimation( SGPropertyNode *prop_root,
316 SGPropertyNode_ptr props )
317 : SGAnimation(props, new ssgSelector),
320 SGPropertyNode_ptr node = props->getChild("condition");
322 _condition = sgReadCondition(prop_root, node);
325 SGSelectAnimation::~SGSelectAnimation ()
331 SGSelectAnimation::update()
333 if (_condition != 0 && _condition->test())
334 ((ssgSelector *)_branch)->select(0xffff);
336 ((ssgSelector *)_branch)->select(0x0000);
342 ////////////////////////////////////////////////////////////////////////
343 // Implementation of SGSpinAnimation
344 ////////////////////////////////////////////////////////////////////////
346 SGSpinAnimation::SGSpinAnimation( SGPropertyNode *prop_root,
347 SGPropertyNode_ptr props,
348 double sim_time_sec )
349 : SGAnimation(props, new ssgTransform),
350 _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
351 _factor(props->getDoubleValue("factor", 1.0)),
352 _position_deg(props->getDoubleValue("starting-position-deg", 0)),
353 _last_time_sec( sim_time_sec ),
356 SGPropertyNode_ptr node = props->getChild("condition");
358 _condition = sgReadCondition(prop_root, node);
363 if (props->hasValue("axis/x1-m")) {
364 double x1,y1,z1,x2,y2,z2;
365 x1 = props->getFloatValue("axis/x1-m");
366 y1 = props->getFloatValue("axis/y1-m");
367 z1 = props->getFloatValue("axis/z1-m");
368 x2 = props->getFloatValue("axis/x2-m");
369 y2 = props->getFloatValue("axis/y2-m");
370 z2 = props->getFloatValue("axis/z2-m");
371 _center[0] = (x1+x2)/2;
372 _center[1]= (y1+y2)/2;
373 _center[2] = (z1+z2)/2;
374 float vector_length = sqrt((x2-x1)*(x2-x1) + (y2-y1)*(y2-y1) + (z2-z1)*(z2-z1));
375 _axis[0] = (x2-x1)/vector_length;
376 _axis[1] = (y2-y1)/vector_length;
377 _axis[2] = (z2-z1)/vector_length;
379 _axis[0] = props->getFloatValue("axis/x", 0);
380 _axis[1] = props->getFloatValue("axis/y", 0);
381 _axis[2] = props->getFloatValue("axis/z", 0);
383 if (props->hasValue("center/x-m")) {
384 _center[0] = props->getFloatValue("center/x-m", 0);
385 _center[1] = props->getFloatValue("center/y-m", 0);
386 _center[2] = props->getFloatValue("center/z-m", 0);
388 sgNormalizeVec3(_axis);
391 SGSpinAnimation::~SGSpinAnimation ()
396 SGSpinAnimation::update()
398 if ( _condition == 0 || _condition->test() ) {
399 double dt = sim_time_sec - _last_time_sec;
400 _last_time_sec = sim_time_sec;
402 float velocity_rpms = (_prop->getDoubleValue() * _factor / 60.0);
403 _position_deg += (dt * velocity_rpms * 360);
404 while (_position_deg < 0)
405 _position_deg += 360.0;
406 while (_position_deg >= 360.0)
407 _position_deg -= 360.0;
408 set_rotation(_matrix, _position_deg, _center, _axis);
409 ((ssgTransform *)_branch)->setTransform(_matrix);
416 ////////////////////////////////////////////////////////////////////////
417 // Implementation of SGTimedAnimation
418 ////////////////////////////////////////////////////////////////////////
420 SGTimedAnimation::SGTimedAnimation (SGPropertyNode_ptr props)
421 : SGAnimation(props, new ssgSelector),
422 _use_personality( props->getBoolValue("use-personality",false) ),
423 _duration_sec(props->getDoubleValue("duration-sec", 1.0)),
424 _last_time_sec( sim_time_sec ),
425 _total_duration_sec( 0 ),
429 vector<SGPropertyNode_ptr> nodes = props->getChildren( "branch-duration-sec" );
430 size_t nb = nodes.size();
431 for ( size_t i = 0; i < nb; i++ ) {
432 size_t ind = nodes[ i ]->getIndex();
433 while ( ind >= _branch_duration_specs.size() ) {
434 _branch_duration_specs.push_back( DurationSpec( _duration_sec ) );
436 SGPropertyNode_ptr rNode = nodes[ i ]->getChild("random");
438 _branch_duration_specs[ ind ] = DurationSpec( nodes[ i ]->getDoubleValue() );
440 _branch_duration_specs[ ind ] = DurationSpec( rNode->getDoubleValue( "min", 0.0 ),
441 rNode->getDoubleValue( "max", 1.0 ) );
446 SGTimedAnimation::~SGTimedAnimation ()
451 SGTimedAnimation::init()
453 if ( !_use_personality ) {
454 for ( size_t i = 0; i < getBranch()->getNumKids(); i++ ) {
456 if ( i < _branch_duration_specs.size() ) {
457 DurationSpec &sp = _branch_duration_specs[ i ];
458 v = sp._min + sg_random() * ( sp._max - sp._min );
462 _branch_duration_sec.push_back( v );
463 _total_duration_sec += v;
465 // Sanity check : total duration shouldn't equal zero
466 if ( _total_duration_sec < 0.01 ) {
467 _total_duration_sec = 0.01;
470 ((ssgSelector *)getBranch())->selectStep(_step);
474 SGTimedAnimation::update()
476 if ( _use_personality ) {
477 SGPersonalityBranch *key = current_object;
478 if ( !key->getIntValue( this, INIT ) ) {
481 for ( size_t i = 0; i < _branch_duration_specs.size(); i++ ) {
482 DurationSpec &sp = _branch_duration_specs[ i ];
483 double v = sp._min + sg_random() * ( sp._max - sp._min );
484 key->setDoubleValue( v, this, BRANCH_DURATION_SEC, i );
489 // Sanity check : total duration shouldn't equal zero
490 if ( total < 0.01 ) {
493 offset *= sg_random();
494 key->setDoubleValue( sim_time_sec - offset, this, LAST_TIME_SEC );
495 key->setDoubleValue( total, this, TOTAL_DURATION_SEC );
496 key->setIntValue( 0, this, STEP );
497 key->setIntValue( 1, this, INIT );
500 _step = key->getIntValue( this, STEP );
501 _last_time_sec = key->getDoubleValue( this, LAST_TIME_SEC );
502 _total_duration_sec = key->getDoubleValue( this, TOTAL_DURATION_SEC );
503 while ( ( sim_time_sec - _last_time_sec ) >= _total_duration_sec ) {
504 _last_time_sec += _total_duration_sec;
506 double duration = _duration_sec;
507 if ( _step < (int)_branch_duration_specs.size() ) {
508 duration = key->getDoubleValue( this, BRANCH_DURATION_SEC, _step );
510 if ( ( sim_time_sec - _last_time_sec ) >= duration ) {
511 _last_time_sec += duration;
513 if ( _step >= getBranch()->getNumKids() )
516 ((ssgSelector *)getBranch())->selectStep( _step );
517 key->setDoubleValue( _last_time_sec, this, LAST_TIME_SEC );
518 key->setIntValue( _step, this, STEP );
520 while ( ( sim_time_sec - _last_time_sec ) >= _total_duration_sec ) {
521 _last_time_sec += _total_duration_sec;
523 double duration = _duration_sec;
524 if ( _step < (int)_branch_duration_sec.size() ) {
525 duration = _branch_duration_sec[ _step ];
527 if ( ( sim_time_sec - _last_time_sec ) >= duration ) {
528 _last_time_sec += duration;
530 if ( _step >= getBranch()->getNumKids() )
532 ((ssgSelector *)getBranch())->selectStep( _step );
540 ////////////////////////////////////////////////////////////////////////
541 // Implementation of SGRotateAnimation
542 ////////////////////////////////////////////////////////////////////////
544 SGRotateAnimation::SGRotateAnimation( SGPropertyNode *prop_root,
545 SGPropertyNode_ptr props )
546 : SGAnimation(props, new ssgTransform),
547 _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
548 _offset_deg(props->getDoubleValue("offset-deg", 0.0)),
549 _factor(props->getDoubleValue("factor", 1.0)),
550 _table(read_interpolation_table(props)),
551 _has_min(props->hasValue("min-deg")),
552 _min_deg(props->getDoubleValue("min-deg")),
553 _has_max(props->hasValue("max-deg")),
554 _max_deg(props->getDoubleValue("max-deg")),
555 _position_deg(props->getDoubleValue("starting-position-deg", 0)),
558 SGPropertyNode_ptr node = props->getChild("condition");
560 _condition = sgReadCondition(prop_root, node);
565 if (props->hasValue("axis/x1-m")) {
566 double x1,y1,z1,x2,y2,z2;
567 x1 = props->getFloatValue("axis/x1-m");
568 y1 = props->getFloatValue("axis/y1-m");
569 z1 = props->getFloatValue("axis/z1-m");
570 x2 = props->getFloatValue("axis/x2-m");
571 y2 = props->getFloatValue("axis/y2-m");
572 z2 = props->getFloatValue("axis/z2-m");
573 _center[0] = (x1+x2)/2;
574 _center[1]= (y1+y2)/2;
575 _center[2] = (z1+z2)/2;
576 float vector_length = sqrt((x2-x1)*(x2-x1) + (y2-y1)*(y2-y1) + (z2-z1)*(z2-z1));
577 _axis[0] = (x2-x1)/vector_length;
578 _axis[1] = (y2-y1)/vector_length;
579 _axis[2] = (z2-z1)/vector_length;
581 _axis[0] = props->getFloatValue("axis/x", 0);
582 _axis[1] = props->getFloatValue("axis/y", 0);
583 _axis[2] = props->getFloatValue("axis/z", 0);
585 if (props->hasValue("center/x-m")) {
586 _center[0] = props->getFloatValue("center/x-m", 0);
587 _center[1] = props->getFloatValue("center/y-m", 0);
588 _center[2] = props->getFloatValue("center/z-m", 0);
590 sgNormalizeVec3(_axis);
593 SGRotateAnimation::~SGRotateAnimation ()
599 SGRotateAnimation::update()
601 if (_condition == 0 || _condition->test()) {
603 _position_deg = _prop->getDoubleValue() * _factor + _offset_deg;
604 if (_has_min && _position_deg < _min_deg)
605 _position_deg = _min_deg;
606 if (_has_max && _position_deg > _max_deg)
607 _position_deg = _max_deg;
609 _position_deg = _table->interpolate(_prop->getDoubleValue());
611 set_rotation(_matrix, _position_deg, _center, _axis);
612 ((ssgTransform *)_branch)->setTransform(_matrix);
618 ////////////////////////////////////////////////////////////////////////
619 // Implementation of SGBlendAnimation
620 ////////////////////////////////////////////////////////////////////////
622 SGBlendAnimation::SGBlendAnimation( SGPropertyNode *prop_root,
623 SGPropertyNode_ptr props )
624 : SGAnimation(props, new ssgTransform),
625 _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
626 _table(read_interpolation_table(props)),
628 _offset(props->getDoubleValue("offset", 0.0)),
629 _factor(props->getDoubleValue("factor", 1.0)),
630 _has_min(props->hasValue("min")),
631 _min(props->getDoubleValue("min", 0.0)),
632 _has_max(props->hasValue("max")),
633 _max(props->getDoubleValue("max", 1.0))
637 SGBlendAnimation::~SGBlendAnimation ()
643 SGBlendAnimation::update()
648 _blend = 1.0 - (_prop->getDoubleValue() * _factor + _offset);
650 if (_has_min && (_blend < _min))
652 if (_has_max && (_blend > _max))
655 _blend = _table->interpolate(_prop->getDoubleValue());
658 if (_blend != _prev_value) {
659 _prev_value = _blend;
660 change_alpha( _branch, _blend );
667 ////////////////////////////////////////////////////////////////////////
668 // Implementation of SGTranslateAnimation
669 ////////////////////////////////////////////////////////////////////////
671 SGTranslateAnimation::SGTranslateAnimation( SGPropertyNode *prop_root,
672 SGPropertyNode_ptr props )
673 : SGAnimation(props, new ssgTransform),
674 _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
675 _offset_m(props->getDoubleValue("offset-m", 0.0)),
676 _factor(props->getDoubleValue("factor", 1.0)),
677 _table(read_interpolation_table(props)),
678 _has_min(props->hasValue("min-m")),
679 _min_m(props->getDoubleValue("min-m")),
680 _has_max(props->hasValue("max-m")),
681 _max_m(props->getDoubleValue("max-m")),
682 _position_m(props->getDoubleValue("starting-position-m", 0)),
685 SGPropertyNode_ptr node = props->getChild("condition");
687 _condition = sgReadCondition(prop_root, node);
689 _axis[0] = props->getFloatValue("axis/x", 0);
690 _axis[1] = props->getFloatValue("axis/y", 0);
691 _axis[2] = props->getFloatValue("axis/z", 0);
692 sgNormalizeVec3(_axis);
695 SGTranslateAnimation::~SGTranslateAnimation ()
701 SGTranslateAnimation::update()
703 if (_condition == 0 || _condition->test()) {
705 _position_m = (_prop->getDoubleValue() + _offset_m) * _factor;
706 if (_has_min && _position_m < _min_m)
707 _position_m = _min_m;
708 if (_has_max && _position_m > _max_m)
709 _position_m = _max_m;
711 _position_m = _table->interpolate(_prop->getDoubleValue());
713 set_translation(_matrix, _position_m, _axis);
714 ((ssgTransform *)_branch)->setTransform(_matrix);
721 ////////////////////////////////////////////////////////////////////////
722 // Implementation of SGScaleAnimation
723 ////////////////////////////////////////////////////////////////////////
725 SGScaleAnimation::SGScaleAnimation( SGPropertyNode *prop_root,
726 SGPropertyNode_ptr props )
727 : SGAnimation(props, new ssgTransform),
728 _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
729 _x_factor(props->getDoubleValue("x-factor", 1.0)),
730 _y_factor(props->getDoubleValue("y-factor", 1.0)),
731 _z_factor(props->getDoubleValue("z-factor", 1.0)),
732 _x_offset(props->getDoubleValue("x-offset", 1.0)),
733 _y_offset(props->getDoubleValue("y-offset", 1.0)),
734 _z_offset(props->getDoubleValue("z-offset", 1.0)),
735 _table(read_interpolation_table(props)),
736 _has_min_x(props->hasValue("x-min")),
737 _has_min_y(props->hasValue("y-min")),
738 _has_min_z(props->hasValue("z-min")),
739 _min_x(props->getDoubleValue("x-min")),
740 _min_y(props->getDoubleValue("y-min")),
741 _min_z(props->getDoubleValue("z-min")),
742 _has_max_x(props->hasValue("x-max")),
743 _has_max_y(props->hasValue("y-max")),
744 _has_max_z(props->hasValue("z-max")),
745 _max_x(props->getDoubleValue("x-max")),
746 _max_y(props->getDoubleValue("y-max")),
747 _max_z(props->getDoubleValue("z-max"))
751 SGScaleAnimation::~SGScaleAnimation ()
757 SGScaleAnimation::update()
760 _x_scale = _prop->getDoubleValue() * _x_factor + _x_offset;
761 if (_has_min_x && _x_scale < _min_x)
763 if (_has_max_x && _x_scale > _max_x)
766 _x_scale = _table->interpolate(_prop->getDoubleValue());
770 _y_scale = _prop->getDoubleValue() * _y_factor + _y_offset;
771 if (_has_min_y && _y_scale < _min_y)
773 if (_has_max_y && _y_scale > _max_y)
776 _y_scale = _table->interpolate(_prop->getDoubleValue());
780 _z_scale = _prop->getDoubleValue() * _z_factor + _z_offset;
781 if (_has_min_z && _z_scale < _min_z)
783 if (_has_max_z && _z_scale > _max_z)
786 _z_scale = _table->interpolate(_prop->getDoubleValue());
789 set_scale(_matrix, _x_scale, _y_scale, _z_scale );
790 ((ssgTransform *)_branch)->setTransform(_matrix);
795 ////////////////////////////////////////////////////////////////////////
796 // Implementation of SGTexRotateAnimation
797 ////////////////////////////////////////////////////////////////////////
799 SGTexRotateAnimation::SGTexRotateAnimation( SGPropertyNode *prop_root,
800 SGPropertyNode_ptr props )
801 : SGAnimation(props, new ssgTexTrans),
802 _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
803 _offset_deg(props->getDoubleValue("offset-deg", 0.0)),
804 _factor(props->getDoubleValue("factor", 1.0)),
805 _table(read_interpolation_table(props)),
806 _has_min(props->hasValue("min-deg")),
807 _min_deg(props->getDoubleValue("min-deg")),
808 _has_max(props->hasValue("max-deg")),
809 _max_deg(props->getDoubleValue("max-deg")),
810 _position_deg(props->getDoubleValue("starting-position-deg", 0))
812 _center[0] = props->getFloatValue("center/x", 0);
813 _center[1] = props->getFloatValue("center/y", 0);
814 _center[2] = props->getFloatValue("center/z", 0);
815 _axis[0] = props->getFloatValue("axis/x", 0);
816 _axis[1] = props->getFloatValue("axis/y", 0);
817 _axis[2] = props->getFloatValue("axis/z", 0);
818 sgNormalizeVec3(_axis);
821 SGTexRotateAnimation::~SGTexRotateAnimation ()
827 SGTexRotateAnimation::update()
830 _position_deg = _prop->getDoubleValue() * _factor + _offset_deg;
831 if (_has_min && _position_deg < _min_deg)
832 _position_deg = _min_deg;
833 if (_has_max && _position_deg > _max_deg)
834 _position_deg = _max_deg;
836 _position_deg = _table->interpolate(_prop->getDoubleValue());
838 set_rotation(_matrix, _position_deg, _center, _axis);
839 ((ssgTexTrans *)_branch)->setTransform(_matrix);
844 ////////////////////////////////////////////////////////////////////////
845 // Implementation of SGTexTranslateAnimation
846 ////////////////////////////////////////////////////////////////////////
848 SGTexTranslateAnimation::SGTexTranslateAnimation( SGPropertyNode *prop_root,
849 SGPropertyNode_ptr props )
850 : SGAnimation(props, new ssgTexTrans),
851 _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
852 _offset(props->getDoubleValue("offset", 0.0)),
853 _factor(props->getDoubleValue("factor", 1.0)),
854 _step(props->getDoubleValue("step",0.0)),
855 _scroll(props->getDoubleValue("scroll",0.0)),
856 _table(read_interpolation_table(props)),
857 _has_min(props->hasValue("min")),
858 _min(props->getDoubleValue("min")),
859 _has_max(props->hasValue("max")),
860 _max(props->getDoubleValue("max")),
861 _position(props->getDoubleValue("starting-position", 0))
863 _axis[0] = props->getFloatValue("axis/x", 0);
864 _axis[1] = props->getFloatValue("axis/y", 0);
865 _axis[2] = props->getFloatValue("axis/z", 0);
866 sgNormalizeVec3(_axis);
869 SGTexTranslateAnimation::~SGTexTranslateAnimation ()
875 SGTexTranslateAnimation::update()
878 _position = (apply_mods(_prop->getDoubleValue(), _step, _scroll) + _offset) * _factor;
879 if (_has_min && _position < _min)
881 if (_has_max && _position > _max)
884 _position = _table->interpolate(apply_mods(_prop->getDoubleValue(), _step, _scroll));
886 set_translation(_matrix, _position, _axis);
887 ((ssgTexTrans *)_branch)->setTransform(_matrix);
892 ////////////////////////////////////////////////////////////////////////
893 // Implementation of SGTexMultipleAnimation
894 ////////////////////////////////////////////////////////////////////////
896 SGTexMultipleAnimation::SGTexMultipleAnimation( SGPropertyNode *prop_root,
897 SGPropertyNode_ptr props )
898 : SGAnimation(props, new ssgTexTrans),
899 _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true))
903 vector<SGPropertyNode_ptr> transform_nodes = props->getChildren("transform");
904 _transform = new TexTransform [transform_nodes.size()];
906 for (i = 0; i < transform_nodes.size(); i++) {
907 SGPropertyNode_ptr transform_props = transform_nodes[i];
909 if (!strcmp("textranslate",transform_props->getStringValue("subtype", 0))) {
911 // transform is a translation
912 _transform[i].subtype = 0;
914 _transform[i].prop = (SGPropertyNode *)prop_root->getNode(transform_props->getStringValue("property", "/null"), true);
916 _transform[i].offset = transform_props->getDoubleValue("offset", 0.0);
917 _transform[i].factor = transform_props->getDoubleValue("factor", 1.0);
918 _transform[i].step = transform_props->getDoubleValue("step",0.0);
919 _transform[i].scroll = transform_props->getDoubleValue("scroll",0.0);
920 _transform[i].table = read_interpolation_table(transform_props);
921 _transform[i].has_min = transform_props->hasValue("min");
922 _transform[i].min = transform_props->getDoubleValue("min");
923 _transform[i].has_max = transform_props->hasValue("max");
924 _transform[i].max = transform_props->getDoubleValue("max");
925 _transform[i].position = transform_props->getDoubleValue("starting-position", 0);
927 _transform[i].axis[0] = transform_props->getFloatValue("axis/x", 0);
928 _transform[i].axis[1] = transform_props->getFloatValue("axis/y", 0);
929 _transform[i].axis[2] = transform_props->getFloatValue("axis/z", 0);
930 sgNormalizeVec3(_transform[i].axis);
932 } else if (!strcmp("texrotate",transform_nodes[i]->getStringValue("subtype", 0))) {
934 // transform is a rotation
935 _transform[i].subtype = 1;
937 _transform[i].prop = (SGPropertyNode *)prop_root->getNode(transform_props->getStringValue("property", "/null"), true);
938 _transform[i].offset = transform_props->getDoubleValue("offset-deg", 0.0);
939 _transform[i].factor = transform_props->getDoubleValue("factor", 1.0);
940 _transform[i].table = read_interpolation_table(transform_props);
941 _transform[i].has_min = transform_props->hasValue("min-deg");
942 _transform[i].min = transform_props->getDoubleValue("min-deg");
943 _transform[i].has_max = transform_props->hasValue("max-deg");
944 _transform[i].max = transform_props->getDoubleValue("max-deg");
945 _transform[i].position = transform_props->getDoubleValue("starting-position-deg", 0);
947 _transform[i].center[0] = transform_props->getFloatValue("center/x", 0);
948 _transform[i].center[1] = transform_props->getFloatValue("center/y", 0);
949 _transform[i].center[2] = transform_props->getFloatValue("center/z", 0);
950 _transform[i].axis[0] = transform_props->getFloatValue("axis/x", 0);
951 _transform[i].axis[1] = transform_props->getFloatValue("axis/y", 0);
952 _transform[i].axis[2] = transform_props->getFloatValue("axis/z", 0);
953 sgNormalizeVec3(_transform[i].axis);
959 SGTexMultipleAnimation::~SGTexMultipleAnimation ()
966 SGTexMultipleAnimation::update()
970 sgMakeIdentMat4(tmatrix);
971 for (i = 0; i < _num_transforms; i++) {
973 if(_transform[i].subtype == 0) {
975 // subtype 0 is translation
976 if (_transform[i].table == 0) {
977 _transform[i].position = (apply_mods(_transform[i].prop->getDoubleValue(), _transform[i].step,_transform[i].scroll) + _transform[i].offset) * _transform[i].factor;
978 if (_transform[i].has_min && _transform[i].position < _transform[i].min)
979 _transform[i].position = _transform[i].min;
980 if (_transform[i].has_max && _transform[i].position > _transform[i].max)
981 _transform[i].position = _transform[i].max;
983 _transform[i].position = _transform[i].table->interpolate(apply_mods(_transform[i].prop->getDoubleValue(), _transform[i].step,_transform[i].scroll));
985 set_translation(_transform[i].matrix, _transform[i].position, _transform[i].axis);
986 sgPreMultMat4(tmatrix, _transform[i].matrix);
988 } else if (_transform[i].subtype == 1) {
990 // subtype 1 is rotation
992 if (_transform[i].table == 0) {
993 _transform[i].position = _transform[i].prop->getDoubleValue() * _transform[i].factor + _transform[i].offset;
994 if (_transform[i].has_min && _transform[i].position < _transform[i].min)
995 _transform[i].position = _transform[i].min;
996 if (_transform[i].has_max && _transform[i].position > _transform[i].max)
997 _transform[i].position = _transform[i].max;
999 _transform[i].position = _transform[i].table->interpolate(_transform[i].prop->getDoubleValue());
1001 set_rotation(_transform[i].matrix, _transform[i].position, _transform[i].center, _transform[i].axis);
1002 sgPreMultMat4(tmatrix, _transform[i].matrix);
1005 ((ssgTexTrans *)_branch)->setTransform(tmatrix);
1011 ////////////////////////////////////////////////////////////////////////
1012 // Implementation of SGAlphaTestAnimation
1013 ////////////////////////////////////////////////////////////////////////
1015 SGAlphaTestAnimation::SGAlphaTestAnimation(SGPropertyNode_ptr props)
1016 : SGAnimation(props, new ssgBranch)
1018 _alpha_clamp = props->getFloatValue("alpha-factor", 0.0);
1021 SGAlphaTestAnimation::~SGAlphaTestAnimation ()
1025 void SGAlphaTestAnimation::init()
1027 setAlphaClampToBranch(_branch,_alpha_clamp);
1030 void SGAlphaTestAnimation::setAlphaClampToBranch(ssgBranch *b, float clamp)
1032 int nb = b->getNumKids();
1033 for (int i = 0; i<nb; i++) {
1034 ssgEntity *e = b->getKid(i);
1035 if (e->isAKindOf(ssgTypeLeaf())) {
1036 ssgSimpleState*s = (ssgSimpleState*)((ssgLeaf*)e)->getState();
1037 s->enable( GL_ALPHA_TEST );
1038 s->setAlphaClamp( clamp );
1039 } else if (e->isAKindOf(ssgTypeBranch())) {
1040 setAlphaClampToBranch( (ssgBranch*)e, clamp );
1047 ////////////////////////////////////////////////////////////////////////
1048 // Implementation of SGFlashAnimation
1049 ////////////////////////////////////////////////////////////////////////
1050 SGFlashAnimation::SGFlashAnimation(SGPropertyNode_ptr props)
1051 : SGAnimation( props, new SGCustomTransform )
1053 _axis[0] = props->getFloatValue("axis/x", 0);
1054 _axis[1] = props->getFloatValue("axis/y", 0);
1055 _axis[2] = props->getFloatValue("axis/z", 1);
1057 _center[0] = props->getFloatValue("center/x-m", 0);
1058 _center[1] = props->getFloatValue("center/y-m", 0);
1059 _center[2] = props->getFloatValue("center/z-m", 0);
1061 _offset = props->getFloatValue("offset", 0.0);
1062 _factor = props->getFloatValue("factor", 1.0);
1063 _power = props->getFloatValue("power", 1.0);
1064 _two_sides = props->getBoolValue("two-sides", false);
1066 _min_v = props->getFloatValue("min", 0.0);
1067 _max_v = props->getFloatValue("max", 1.0);
1069 ((SGCustomTransform *)_branch)->setTransCallback( &SGFlashAnimation::flashCallback, this );
1072 SGFlashAnimation::~SGFlashAnimation()
1076 void SGFlashAnimation::flashCallback( sgMat4 r, sgFrustum *f, sgMat4 m, void *d )
1078 ((SGFlashAnimation *)d)->flashCallback( r, f, m );
1081 void SGFlashAnimation::flashCallback( sgMat4 r, sgFrustum *f, sgMat4 m )
1083 sgVec3 transformed_axis;
1084 sgXformVec3( transformed_axis, _axis, m );
1085 sgNormalizeVec3( transformed_axis );
1088 sgFullXformPnt3( view, _center, m );
1089 sgNormalizeVec3( view );
1091 float cos_angle = -sgScalarProductVec3( transformed_axis, view );
1092 float scale_factor = 0.f;
1093 if ( _two_sides && cos_angle < 0 )
1094 scale_factor = _factor * (float)pow( -cos_angle, _power ) + _offset;
1095 else if ( cos_angle > 0 )
1096 scale_factor = _factor * (float)pow( cos_angle, _power ) + _offset;
1098 if ( scale_factor < _min_v )
1099 scale_factor = _min_v;
1100 if ( scale_factor > _max_v )
1101 scale_factor = _max_v;
1104 sgMakeIdentMat4( transform );
1105 transform[0][0] = scale_factor;
1106 transform[1][1] = scale_factor;
1107 transform[2][2] = scale_factor;
1108 transform[3][0] = _center[0] * ( 1 - scale_factor );
1109 transform[3][1] = _center[1] * ( 1 - scale_factor );
1110 transform[3][2] = _center[2] * ( 1 - scale_factor );
1113 sgPreMultMat4( r, transform );
1118 ////////////////////////////////////////////////////////////////////////
1119 // Implementation of SGDistScaleAnimation
1120 ////////////////////////////////////////////////////////////////////////
1121 SGDistScaleAnimation::SGDistScaleAnimation(SGPropertyNode_ptr props)
1122 : SGAnimation( props, new SGCustomTransform ),
1123 _factor(props->getFloatValue("factor", 1.0)),
1124 _offset(props->getFloatValue("offset", 0.0)),
1125 _min_v(props->getFloatValue("min", 0.0)),
1126 _max_v(props->getFloatValue("max", 1.0)),
1127 _has_min(props->hasValue("min")),
1128 _has_max(props->hasValue("max")),
1129 _table(read_interpolation_table(props))
1131 _center[0] = props->getFloatValue("center/x-m", 0);
1132 _center[1] = props->getFloatValue("center/y-m", 0);
1133 _center[2] = props->getFloatValue("center/z-m", 0);
1135 ((SGCustomTransform *)_branch)->setTransCallback( &SGDistScaleAnimation::distScaleCallback, this );
1138 SGDistScaleAnimation::~SGDistScaleAnimation()
1142 void SGDistScaleAnimation::distScaleCallback( sgMat4 r, sgFrustum *f, sgMat4 m, void *d )
1144 ((SGDistScaleAnimation *)d)->distScaleCallback( r, f, m );
1147 void SGDistScaleAnimation::distScaleCallback( sgMat4 r, sgFrustum *f, sgMat4 m )
1150 sgFullXformPnt3( view, _center, m );
1152 float scale_factor = sgLengthVec3( view );
1154 scale_factor = _factor * scale_factor + _offset;
1155 if ( _has_min && scale_factor < _min_v )
1156 scale_factor = _min_v;
1157 if ( _has_max && scale_factor > _max_v )
1158 scale_factor = _max_v;
1160 scale_factor = _table->interpolate( scale_factor );
1164 sgMakeIdentMat4( transform );
1165 transform[0][0] = scale_factor;
1166 transform[1][1] = scale_factor;
1167 transform[2][2] = scale_factor;
1168 transform[3][0] = _center[0] * ( 1 - scale_factor );
1169 transform[3][1] = _center[1] * ( 1 - scale_factor );
1170 transform[3][2] = _center[2] * ( 1 - scale_factor );
1173 sgPreMultMat4( r, transform );
1176 // end of animation.cxx