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 ) );
444 if ( !_use_personality ) {
445 for ( size_t i = 0; i < _branch_duration_specs.size(); i++ ) {
446 DurationSpec &sp = _branch_duration_specs[ i ];
447 double v = sp._min + sg_random() * ( sp._max - sp._min );
448 _branch_duration_sec.push_back( v );
449 _total_duration_sec += v;
452 ((ssgSelector *)getBranch())->selectStep(_step);
455 SGTimedAnimation::~SGTimedAnimation ()
460 SGTimedAnimation::update()
462 if ( _use_personality ) {
463 SGPersonalityBranch *key = current_object;
464 if ( !key->getIntValue( this, INIT ) ) {
467 for ( size_t i = 0; i < _branch_duration_specs.size(); i++ ) {
468 DurationSpec &sp = _branch_duration_specs[ i ];
469 double v = sp._min + sg_random() * ( sp._max - sp._min );
470 key->setDoubleValue( v, this, BRANCH_DURATION_SEC, i );
475 offset *= sg_random();
476 key->setDoubleValue( sim_time_sec - offset, this, LAST_TIME_SEC );
477 key->setDoubleValue( total, this, TOTAL_DURATION_SEC );
478 key->setIntValue( 0, this, STEP );
479 key->setIntValue( 1, this, INIT );
482 _step = key->getIntValue( this, STEP );
483 _last_time_sec = key->getDoubleValue( this, LAST_TIME_SEC );
484 _total_duration_sec = key->getDoubleValue( this, TOTAL_DURATION_SEC );
485 while ( ( sim_time_sec - _last_time_sec ) >= _total_duration_sec ) {
486 _last_time_sec += _total_duration_sec;
488 double duration = _duration_sec;
489 if ( _step < (int)_branch_duration_specs.size() ) {
490 duration = key->getDoubleValue( this, BRANCH_DURATION_SEC, _step );
492 if ( ( sim_time_sec - _last_time_sec ) >= duration ) {
493 _last_time_sec += duration;
495 if ( _step >= getBranch()->getNumKids() )
498 ((ssgSelector *)getBranch())->selectStep( _step );
499 key->setDoubleValue( _last_time_sec, this, LAST_TIME_SEC );
500 key->setIntValue( _step, this, STEP );
502 while ( ( sim_time_sec - _last_time_sec ) >= _total_duration_sec ) {
503 _last_time_sec += _total_duration_sec;
505 double duration = _duration_sec;
506 if ( _step < (int)_branch_duration_sec.size() ) {
507 duration = _branch_duration_sec[ _step ];
509 if ( ( sim_time_sec - _last_time_sec ) >= duration ) {
510 _last_time_sec += duration;
512 if ( _step >= getBranch()->getNumKids() )
514 ((ssgSelector *)getBranch())->selectStep( _step );
522 ////////////////////////////////////////////////////////////////////////
523 // Implementation of SGRotateAnimation
524 ////////////////////////////////////////////////////////////////////////
526 SGRotateAnimation::SGRotateAnimation( SGPropertyNode *prop_root,
527 SGPropertyNode_ptr props )
528 : SGAnimation(props, new ssgTransform),
529 _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
530 _offset_deg(props->getDoubleValue("offset-deg", 0.0)),
531 _factor(props->getDoubleValue("factor", 1.0)),
532 _table(read_interpolation_table(props)),
533 _has_min(props->hasValue("min-deg")),
534 _min_deg(props->getDoubleValue("min-deg")),
535 _has_max(props->hasValue("max-deg")),
536 _max_deg(props->getDoubleValue("max-deg")),
537 _position_deg(props->getDoubleValue("starting-position-deg", 0)),
540 SGPropertyNode_ptr node = props->getChild("condition");
542 _condition = sgReadCondition(prop_root, node);
547 if (props->hasValue("axis/x1-m")) {
548 double x1,y1,z1,x2,y2,z2;
549 x1 = props->getFloatValue("axis/x1-m");
550 y1 = props->getFloatValue("axis/y1-m");
551 z1 = props->getFloatValue("axis/z1-m");
552 x2 = props->getFloatValue("axis/x2-m");
553 y2 = props->getFloatValue("axis/y2-m");
554 z2 = props->getFloatValue("axis/z2-m");
555 _center[0] = (x1+x2)/2;
556 _center[1]= (y1+y2)/2;
557 _center[2] = (z1+z2)/2;
558 float vector_length = sqrt((x2-x1)*(x2-x1) + (y2-y1)*(y2-y1) + (z2-z1)*(z2-z1));
559 _axis[0] = (x2-x1)/vector_length;
560 _axis[1] = (y2-y1)/vector_length;
561 _axis[2] = (z2-z1)/vector_length;
563 _axis[0] = props->getFloatValue("axis/x", 0);
564 _axis[1] = props->getFloatValue("axis/y", 0);
565 _axis[2] = props->getFloatValue("axis/z", 0);
567 if (props->hasValue("center/x-m")) {
568 _center[0] = props->getFloatValue("center/x-m", 0);
569 _center[1] = props->getFloatValue("center/y-m", 0);
570 _center[2] = props->getFloatValue("center/z-m", 0);
572 sgNormalizeVec3(_axis);
575 SGRotateAnimation::~SGRotateAnimation ()
581 SGRotateAnimation::update()
583 if (_condition == 0 || _condition->test()) {
585 _position_deg = _prop->getDoubleValue() * _factor + _offset_deg;
586 if (_has_min && _position_deg < _min_deg)
587 _position_deg = _min_deg;
588 if (_has_max && _position_deg > _max_deg)
589 _position_deg = _max_deg;
591 _position_deg = _table->interpolate(_prop->getDoubleValue());
593 set_rotation(_matrix, _position_deg, _center, _axis);
594 ((ssgTransform *)_branch)->setTransform(_matrix);
600 ////////////////////////////////////////////////////////////////////////
601 // Implementation of SGBlendAnimation
602 ////////////////////////////////////////////////////////////////////////
604 SGBlendAnimation::SGBlendAnimation( SGPropertyNode *prop_root,
605 SGPropertyNode_ptr props )
606 : SGAnimation(props, new ssgTransform),
607 _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
608 _table(read_interpolation_table(props)),
610 _offset(props->getDoubleValue("offset", 0.0)),
611 _factor(props->getDoubleValue("factor", 1.0)),
612 _has_min(props->hasValue("min")),
613 _min(props->getDoubleValue("min", 0.0)),
614 _has_max(props->hasValue("max")),
615 _max(props->getDoubleValue("max", 1.0))
619 SGBlendAnimation::~SGBlendAnimation ()
625 SGBlendAnimation::update()
630 _blend = 1.0 - (_prop->getDoubleValue() * _factor + _offset);
632 if (_has_min && (_blend < _min))
634 if (_has_max && (_blend > _max))
637 _blend = _table->interpolate(_prop->getDoubleValue());
640 if (_blend != _prev_value) {
641 _prev_value = _blend;
642 change_alpha( _branch, _blend );
649 ////////////////////////////////////////////////////////////////////////
650 // Implementation of SGTranslateAnimation
651 ////////////////////////////////////////////////////////////////////////
653 SGTranslateAnimation::SGTranslateAnimation( SGPropertyNode *prop_root,
654 SGPropertyNode_ptr props )
655 : SGAnimation(props, new ssgTransform),
656 _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
657 _offset_m(props->getDoubleValue("offset-m", 0.0)),
658 _factor(props->getDoubleValue("factor", 1.0)),
659 _table(read_interpolation_table(props)),
660 _has_min(props->hasValue("min-m")),
661 _min_m(props->getDoubleValue("min-m")),
662 _has_max(props->hasValue("max-m")),
663 _max_m(props->getDoubleValue("max-m")),
664 _position_m(props->getDoubleValue("starting-position-m", 0)),
667 SGPropertyNode_ptr node = props->getChild("condition");
669 _condition = sgReadCondition(prop_root, node);
671 _axis[0] = props->getFloatValue("axis/x", 0);
672 _axis[1] = props->getFloatValue("axis/y", 0);
673 _axis[2] = props->getFloatValue("axis/z", 0);
674 sgNormalizeVec3(_axis);
677 SGTranslateAnimation::~SGTranslateAnimation ()
683 SGTranslateAnimation::update()
685 if (_condition == 0 || _condition->test()) {
687 _position_m = (_prop->getDoubleValue() + _offset_m) * _factor;
688 if (_has_min && _position_m < _min_m)
689 _position_m = _min_m;
690 if (_has_max && _position_m > _max_m)
691 _position_m = _max_m;
693 _position_m = _table->interpolate(_prop->getDoubleValue());
695 set_translation(_matrix, _position_m, _axis);
696 ((ssgTransform *)_branch)->setTransform(_matrix);
703 ////////////////////////////////////////////////////////////////////////
704 // Implementation of SGScaleAnimation
705 ////////////////////////////////////////////////////////////////////////
707 SGScaleAnimation::SGScaleAnimation( SGPropertyNode *prop_root,
708 SGPropertyNode_ptr props )
709 : SGAnimation(props, new ssgTransform),
710 _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
711 _x_factor(props->getDoubleValue("x-factor", 1.0)),
712 _y_factor(props->getDoubleValue("y-factor", 1.0)),
713 _z_factor(props->getDoubleValue("z-factor", 1.0)),
714 _x_offset(props->getDoubleValue("x-offset", 1.0)),
715 _y_offset(props->getDoubleValue("y-offset", 1.0)),
716 _z_offset(props->getDoubleValue("z-offset", 1.0)),
717 _table(read_interpolation_table(props)),
718 _has_min_x(props->hasValue("x-min")),
719 _has_min_y(props->hasValue("y-min")),
720 _has_min_z(props->hasValue("z-min")),
721 _min_x(props->getDoubleValue("x-min")),
722 _min_y(props->getDoubleValue("y-min")),
723 _min_z(props->getDoubleValue("z-min")),
724 _has_max_x(props->hasValue("x-max")),
725 _has_max_y(props->hasValue("y-max")),
726 _has_max_z(props->hasValue("z-max")),
727 _max_x(props->getDoubleValue("x-max")),
728 _max_y(props->getDoubleValue("y-max")),
729 _max_z(props->getDoubleValue("z-max"))
733 SGScaleAnimation::~SGScaleAnimation ()
739 SGScaleAnimation::update()
742 _x_scale = _prop->getDoubleValue() * _x_factor + _x_offset;
743 if (_has_min_x && _x_scale < _min_x)
745 if (_has_max_x && _x_scale > _max_x)
748 _x_scale = _table->interpolate(_prop->getDoubleValue());
752 _y_scale = _prop->getDoubleValue() * _y_factor + _y_offset;
753 if (_has_min_y && _y_scale < _min_y)
755 if (_has_max_y && _y_scale > _max_y)
758 _y_scale = _table->interpolate(_prop->getDoubleValue());
762 _z_scale = _prop->getDoubleValue() * _z_factor + _z_offset;
763 if (_has_min_z && _z_scale < _min_z)
765 if (_has_max_z && _z_scale > _max_z)
768 _z_scale = _table->interpolate(_prop->getDoubleValue());
771 set_scale(_matrix, _x_scale, _y_scale, _z_scale );
772 ((ssgTransform *)_branch)->setTransform(_matrix);
777 ////////////////////////////////////////////////////////////////////////
778 // Implementation of SGTexRotateAnimation
779 ////////////////////////////////////////////////////////////////////////
781 SGTexRotateAnimation::SGTexRotateAnimation( SGPropertyNode *prop_root,
782 SGPropertyNode_ptr props )
783 : SGAnimation(props, new ssgTexTrans),
784 _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
785 _offset_deg(props->getDoubleValue("offset-deg", 0.0)),
786 _factor(props->getDoubleValue("factor", 1.0)),
787 _table(read_interpolation_table(props)),
788 _has_min(props->hasValue("min-deg")),
789 _min_deg(props->getDoubleValue("min-deg")),
790 _has_max(props->hasValue("max-deg")),
791 _max_deg(props->getDoubleValue("max-deg")),
792 _position_deg(props->getDoubleValue("starting-position-deg", 0))
794 _center[0] = props->getFloatValue("center/x", 0);
795 _center[1] = props->getFloatValue("center/y", 0);
796 _center[2] = props->getFloatValue("center/z", 0);
797 _axis[0] = props->getFloatValue("axis/x", 0);
798 _axis[1] = props->getFloatValue("axis/y", 0);
799 _axis[2] = props->getFloatValue("axis/z", 0);
800 sgNormalizeVec3(_axis);
803 SGTexRotateAnimation::~SGTexRotateAnimation ()
809 SGTexRotateAnimation::update()
812 _position_deg = _prop->getDoubleValue() * _factor + _offset_deg;
813 if (_has_min && _position_deg < _min_deg)
814 _position_deg = _min_deg;
815 if (_has_max && _position_deg > _max_deg)
816 _position_deg = _max_deg;
818 _position_deg = _table->interpolate(_prop->getDoubleValue());
820 set_rotation(_matrix, _position_deg, _center, _axis);
821 ((ssgTexTrans *)_branch)->setTransform(_matrix);
826 ////////////////////////////////////////////////////////////////////////
827 // Implementation of SGTexTranslateAnimation
828 ////////////////////////////////////////////////////////////////////////
830 SGTexTranslateAnimation::SGTexTranslateAnimation( SGPropertyNode *prop_root,
831 SGPropertyNode_ptr props )
832 : SGAnimation(props, new ssgTexTrans),
833 _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
834 _offset(props->getDoubleValue("offset", 0.0)),
835 _factor(props->getDoubleValue("factor", 1.0)),
836 _step(props->getDoubleValue("step",0.0)),
837 _scroll(props->getDoubleValue("scroll",0.0)),
838 _table(read_interpolation_table(props)),
839 _has_min(props->hasValue("min")),
840 _min(props->getDoubleValue("min")),
841 _has_max(props->hasValue("max")),
842 _max(props->getDoubleValue("max")),
843 _position(props->getDoubleValue("starting-position", 0))
845 _axis[0] = props->getFloatValue("axis/x", 0);
846 _axis[1] = props->getFloatValue("axis/y", 0);
847 _axis[2] = props->getFloatValue("axis/z", 0);
848 sgNormalizeVec3(_axis);
851 SGTexTranslateAnimation::~SGTexTranslateAnimation ()
857 SGTexTranslateAnimation::update()
860 _position = (apply_mods(_prop->getDoubleValue(), _step, _scroll) + _offset) * _factor;
861 if (_has_min && _position < _min)
863 if (_has_max && _position > _max)
866 _position = _table->interpolate(apply_mods(_prop->getDoubleValue(), _step, _scroll));
868 set_translation(_matrix, _position, _axis);
869 ((ssgTexTrans *)_branch)->setTransform(_matrix);
874 ////////////////////////////////////////////////////////////////////////
875 // Implementation of SGTexMultipleAnimation
876 ////////////////////////////////////////////////////////////////////////
878 SGTexMultipleAnimation::SGTexMultipleAnimation( SGPropertyNode *prop_root,
879 SGPropertyNode_ptr props )
880 : SGAnimation(props, new ssgTexTrans),
881 _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true))
885 vector<SGPropertyNode_ptr> transform_nodes = props->getChildren("transform");
886 _transform = new TexTransform [transform_nodes.size()];
888 for (i = 0; i < transform_nodes.size(); i++) {
889 SGPropertyNode_ptr transform_props = transform_nodes[i];
891 if (!strcmp("textranslate",transform_props->getStringValue("subtype", 0))) {
893 // transform is a translation
894 _transform[i].subtype = 0;
896 _transform[i].prop = (SGPropertyNode *)prop_root->getNode(transform_props->getStringValue("property", "/null"), true);
898 _transform[i].offset = transform_props->getDoubleValue("offset", 0.0);
899 _transform[i].factor = transform_props->getDoubleValue("factor", 1.0);
900 _transform[i].step = transform_props->getDoubleValue("step",0.0);
901 _transform[i].scroll = transform_props->getDoubleValue("scroll",0.0);
902 _transform[i].table = read_interpolation_table(transform_props);
903 _transform[i].has_min = transform_props->hasValue("min");
904 _transform[i].min = transform_props->getDoubleValue("min");
905 _transform[i].has_max = transform_props->hasValue("max");
906 _transform[i].max = transform_props->getDoubleValue("max");
907 _transform[i].position = transform_props->getDoubleValue("starting-position", 0);
909 _transform[i].axis[0] = transform_props->getFloatValue("axis/x", 0);
910 _transform[i].axis[1] = transform_props->getFloatValue("axis/y", 0);
911 _transform[i].axis[2] = transform_props->getFloatValue("axis/z", 0);
912 sgNormalizeVec3(_transform[i].axis);
914 } else if (!strcmp("texrotate",transform_nodes[i]->getStringValue("subtype", 0))) {
916 // transform is a rotation
917 _transform[i].subtype = 1;
919 _transform[i].prop = (SGPropertyNode *)prop_root->getNode(transform_props->getStringValue("property", "/null"), true);
920 _transform[i].offset = transform_props->getDoubleValue("offset-deg", 0.0);
921 _transform[i].factor = transform_props->getDoubleValue("factor", 1.0);
922 _transform[i].table = read_interpolation_table(transform_props);
923 _transform[i].has_min = transform_props->hasValue("min-deg");
924 _transform[i].min = transform_props->getDoubleValue("min-deg");
925 _transform[i].has_max = transform_props->hasValue("max-deg");
926 _transform[i].max = transform_props->getDoubleValue("max-deg");
927 _transform[i].position = transform_props->getDoubleValue("starting-position-deg", 0);
929 _transform[i].center[0] = transform_props->getFloatValue("center/x", 0);
930 _transform[i].center[1] = transform_props->getFloatValue("center/y", 0);
931 _transform[i].center[2] = transform_props->getFloatValue("center/z", 0);
932 _transform[i].axis[0] = transform_props->getFloatValue("axis/x", 0);
933 _transform[i].axis[1] = transform_props->getFloatValue("axis/y", 0);
934 _transform[i].axis[2] = transform_props->getFloatValue("axis/z", 0);
935 sgNormalizeVec3(_transform[i].axis);
941 SGTexMultipleAnimation::~SGTexMultipleAnimation ()
948 SGTexMultipleAnimation::update()
952 sgMakeIdentMat4(tmatrix);
953 for (i = 0; i < _num_transforms; i++) {
955 if(_transform[i].subtype == 0) {
957 // subtype 0 is translation
958 if (_transform[i].table == 0) {
959 _transform[i].position = (apply_mods(_transform[i].prop->getDoubleValue(), _transform[i].step,_transform[i].scroll) + _transform[i].offset) * _transform[i].factor;
960 if (_transform[i].has_min && _transform[i].position < _transform[i].min)
961 _transform[i].position = _transform[i].min;
962 if (_transform[i].has_max && _transform[i].position > _transform[i].max)
963 _transform[i].position = _transform[i].max;
965 _transform[i].position = _transform[i].table->interpolate(apply_mods(_transform[i].prop->getDoubleValue(), _transform[i].step,_transform[i].scroll));
967 set_translation(_transform[i].matrix, _transform[i].position, _transform[i].axis);
968 sgPreMultMat4(tmatrix, _transform[i].matrix);
970 } else if (_transform[i].subtype == 1) {
972 // subtype 1 is rotation
974 if (_transform[i].table == 0) {
975 _transform[i].position = _transform[i].prop->getDoubleValue() * _transform[i].factor + _transform[i].offset;
976 if (_transform[i].has_min && _transform[i].position < _transform[i].min)
977 _transform[i].position = _transform[i].min;
978 if (_transform[i].has_max && _transform[i].position > _transform[i].max)
979 _transform[i].position = _transform[i].max;
981 _transform[i].position = _transform[i].table->interpolate(_transform[i].prop->getDoubleValue());
983 set_rotation(_transform[i].matrix, _transform[i].position, _transform[i].center, _transform[i].axis);
984 sgPreMultMat4(tmatrix, _transform[i].matrix);
987 ((ssgTexTrans *)_branch)->setTransform(tmatrix);
993 ////////////////////////////////////////////////////////////////////////
994 // Implementation of SGAlphaTestAnimation
995 ////////////////////////////////////////////////////////////////////////
997 SGAlphaTestAnimation::SGAlphaTestAnimation(SGPropertyNode_ptr props)
998 : SGAnimation(props, new ssgBranch)
1000 _alpha_clamp = props->getFloatValue("alpha-factor", 0.0);
1003 SGAlphaTestAnimation::~SGAlphaTestAnimation ()
1007 void SGAlphaTestAnimation::init()
1009 setAlphaClampToBranch(_branch,_alpha_clamp);
1012 void SGAlphaTestAnimation::setAlphaClampToBranch(ssgBranch *b, float clamp)
1014 int nb = b->getNumKids();
1015 for (int i = 0; i<nb; i++) {
1016 ssgEntity *e = b->getKid(i);
1017 if (e->isAKindOf(ssgTypeLeaf())) {
1018 ssgSimpleState*s = (ssgSimpleState*)((ssgLeaf*)e)->getState();
1019 s->enable( GL_ALPHA_TEST );
1020 s->setAlphaClamp( clamp );
1021 } else if (e->isAKindOf(ssgTypeBranch())) {
1022 setAlphaClampToBranch( (ssgBranch*)e, clamp );
1029 ////////////////////////////////////////////////////////////////////////
1030 // Implementation of SGFlashAnimation
1031 ////////////////////////////////////////////////////////////////////////
1032 SGFlashAnimation::SGFlashAnimation(SGPropertyNode_ptr props)
1033 : SGAnimation( props, new SGCustomTransform )
1035 _axis[0] = props->getFloatValue("axis/x", 0);
1036 _axis[1] = props->getFloatValue("axis/y", 0);
1037 _axis[2] = props->getFloatValue("axis/z", 1);
1039 _center[0] = props->getFloatValue("center/x-m", 0);
1040 _center[1] = props->getFloatValue("center/y-m", 0);
1041 _center[2] = props->getFloatValue("center/z-m", 0);
1043 _offset = props->getFloatValue("offset", 0.0);
1044 _factor = props->getFloatValue("factor", 1.0);
1045 _power = props->getFloatValue("power", 1.0);
1046 _two_sides = props->getBoolValue("two-sides", false);
1048 _min_v = props->getFloatValue("min", 0.0);
1049 _max_v = props->getFloatValue("max", 1.0);
1051 ((SGCustomTransform *)_branch)->setTransCallback( &SGFlashAnimation::flashCallback, this );
1054 SGFlashAnimation::~SGFlashAnimation()
1058 void SGFlashAnimation::flashCallback( sgMat4 r, sgFrustum *f, sgMat4 m, void *d )
1060 ((SGFlashAnimation *)d)->flashCallback( r, f, m );
1063 void SGFlashAnimation::flashCallback( sgMat4 r, sgFrustum *f, sgMat4 m )
1065 sgVec3 transformed_axis;
1066 sgXformVec3( transformed_axis, _axis, m );
1067 sgNormalizeVec3( transformed_axis );
1070 sgFullXformPnt3( view, _center, m );
1071 sgNormalizeVec3( view );
1073 float cos_angle = -sgScalarProductVec3( transformed_axis, view );
1074 float scale_factor = 0.f;
1075 if ( _two_sides && cos_angle < 0 )
1076 scale_factor = _factor * (float)pow( -cos_angle, _power ) + _offset;
1077 else if ( cos_angle > 0 )
1078 scale_factor = _factor * (float)pow( cos_angle, _power ) + _offset;
1080 if ( scale_factor < _min_v )
1081 scale_factor = _min_v;
1082 if ( scale_factor > _max_v )
1083 scale_factor = _max_v;
1086 sgMakeIdentMat4( transform );
1087 transform[0][0] = scale_factor;
1088 transform[1][1] = scale_factor;
1089 transform[2][2] = scale_factor;
1090 transform[3][0] = _center[0] * ( 1 - scale_factor );
1091 transform[3][1] = _center[1] * ( 1 - scale_factor );
1092 transform[3][2] = _center[2] * ( 1 - scale_factor );
1095 sgPreMultMat4( r, transform );
1100 ////////////////////////////////////////////////////////////////////////
1101 // Implementation of SGDistScaleAnimation
1102 ////////////////////////////////////////////////////////////////////////
1103 SGDistScaleAnimation::SGDistScaleAnimation(SGPropertyNode_ptr props)
1104 : SGAnimation( props, new SGCustomTransform ),
1105 _factor(props->getFloatValue("factor", 1.0)),
1106 _offset(props->getFloatValue("offset", 0.0)),
1107 _min_v(props->getFloatValue("min", 0.0)),
1108 _max_v(props->getFloatValue("max", 1.0)),
1109 _has_min(props->hasValue("min")),
1110 _has_max(props->hasValue("max")),
1111 _table(read_interpolation_table(props))
1113 _center[0] = props->getFloatValue("center/x-m", 0);
1114 _center[1] = props->getFloatValue("center/y-m", 0);
1115 _center[2] = props->getFloatValue("center/z-m", 0);
1117 ((SGCustomTransform *)_branch)->setTransCallback( &SGDistScaleAnimation::distScaleCallback, this );
1120 SGDistScaleAnimation::~SGDistScaleAnimation()
1124 void SGDistScaleAnimation::distScaleCallback( sgMat4 r, sgFrustum *f, sgMat4 m, void *d )
1126 ((SGDistScaleAnimation *)d)->distScaleCallback( r, f, m );
1129 void SGDistScaleAnimation::distScaleCallback( sgMat4 r, sgFrustum *f, sgMat4 m )
1132 sgFullXformPnt3( view, _center, m );
1134 float scale_factor = sgLengthVec3( view );
1136 scale_factor = _factor * scale_factor + _offset;
1137 if ( _has_min && scale_factor < _min_v )
1138 scale_factor = _min_v;
1139 if ( _has_max && scale_factor > _max_v )
1140 scale_factor = _max_v;
1142 scale_factor = _table->interpolate( scale_factor );
1146 sgMakeIdentMat4( transform );
1147 transform[0][0] = scale_factor;
1148 transform[1][1] = scale_factor;
1149 transform[2][2] = scale_factor;
1150 transform[3][0] = _center[0] * ( 1 - scale_factor );
1151 transform[3][1] = _center[1] * ( 1 - scale_factor );
1152 transform[3][2] = _center[2] * ( 1 - scale_factor );
1155 sgPreMultMat4( r, transform );
1158 // end of animation.cxx