#include <simgear/math/interpolater.hxx>
#include <simgear/props/condition.hxx>
#include <simgear/props/props.hxx>
+#include <simgear/math/sg_random.h>
#include "animation.hxx"
-
+#include "custtrans.hxx"
+#include "personality.hxx"
\f
////////////////////////////////////////////////////////////////////////
sgMakeTransMat4(matrix, xyz);
}
+/**
+ * Set up the transform matrix for a scale operation.
+ */
+static void
+set_scale (sgMat4 &matrix, double x, double y, double z)
+{
+ sgMakeIdentMat4( matrix );
+ matrix[0][0] = x;
+ matrix[1][1] = y;
+ matrix[2][2] = z;
+}
+
+/**
+ * Recursively process all kids to change the alpha values
+ */
+static void
+change_alpha( ssgBase *_branch, float _blend )
+{
+ int i;
+
+ for (i = 0; i < ((ssgBranch *)_branch)->getNumKids(); i++)
+ change_alpha( ((ssgBranch *)_branch)->getKid(i), _blend );
+
+ if ( !_branch->isAKindOf(ssgTypeLeaf())
+ && !_branch->isAKindOf(ssgTypeVtxTable())
+ && !_branch->isAKindOf(ssgTypeVTable()) )
+ return;
+
+ int num_colors = ((ssgLeaf *)_branch)->getNumColours();
+// unsigned int select_ = (_blend == 1.0) ? false : true;
+
+ for (i = 0; i < num_colors; i++)
+ {
+// ((ssgSelector *)_branch)->select( select_ );
+ float *color = ((ssgLeaf *)_branch)->getColour(i);
+ color[3] = _blend;
+ }
+}
+
+/**
+ * Modify property value by step and scroll settings in texture translations
+ */
+static double
+apply_mods(double property, double step, double scroll)
+{
+
+ double modprop;
+ if(step > 0) {
+ double scrollval = 0.0;
+ if(scroll > 0) {
+ // calculate scroll amount (for odometer like movement)
+ double remainder = step - fmod(fabs(property), step);
+ if (remainder < scroll) {
+ scrollval = (scroll - remainder) / scroll * step;
+ }
+ }
+ // apply stepping of input value
+ if(property > 0)
+ modprop = ((floor(property/step) * step) + scrollval);
+ else
+ modprop = ((ceil(property/step) * step) + scrollval);
+ } else {
+ modprop = property;
+ }
+ return modprop;
+
+}
/**
* Read an interpolation table from properties.
// Initialize the static data member
double SGAnimation::sim_time_sec = 0.0;
+SGPersonalityBranch *SGAnimation::current_object = 0;
SGAnimation::SGAnimation (SGPropertyNode_ptr props, ssgBranch * branch)
: _branch(branch)
{
_branch->setName(props->getStringValue("name", 0));
+ if ( props->getBoolValue( "enable-hot", true ) ) {
+ _branch->setTraversalMaskBits( SSGTRAV_HOT );
+ } else {
+ _branch->clrTraversalMaskBits( SSGTRAV_HOT );
+ }
}
SGAnimation::~SGAnimation ()
{
}
-void
+int
SGAnimation::update()
+{
+ return 1;
+}
+
+void
+SGAnimation::restore()
{
}
// Implementation of SGRangeAnimation
////////////////////////////////////////////////////////////////////////
-SGRangeAnimation::SGRangeAnimation (SGPropertyNode_ptr props)
- : SGAnimation(props, new ssgRangeSelector)
+SGRangeAnimation::SGRangeAnimation (SGPropertyNode *prop_root,
+ SGPropertyNode_ptr props)
+ : SGAnimation(props, new ssgRangeSelector),
+ _min(0.0), _max(0.0), _min_factor(1.0), _max_factor(1.0),
+ _condition(0)
{
- float ranges[] = { props->getFloatValue("min-m", 0),
- props->getFloatValue("max-m", 5000) };
+ SGPropertyNode_ptr node = props->getChild("condition");
+ if (node != 0)
+ _condition = sgReadCondition(prop_root, node);
+
+ float ranges[2];
+
+ node = props->getChild( "min-factor" );
+ if (node != 0) {
+ _min_factor = props->getFloatValue("min-factor", 1.0);
+ }
+ node = props->getChild( "max-factor" );
+ if (node != 0) {
+ _max_factor = props->getFloatValue("max-factor", 1.0);
+ }
+ node = props->getChild( "min-property" );
+ if (node != 0) {
+ _min_prop = (SGPropertyNode *)prop_root->getNode(node->getStringValue(), true);
+ ranges[0] = _min_prop->getFloatValue() * _min_factor;
+ } else {
+ _min = props->getFloatValue("min-m", 0);
+ ranges[0] = _min * _min_factor;
+ }
+ node = props->getChild( "max-property" );
+ if (node != 0) {
+ _max_prop = (SGPropertyNode *)prop_root->getNode(node->getStringValue(), true);
+ ranges[1] = _max_prop->getFloatValue() * _max_factor;
+ } else {
+ _max = props->getFloatValue("max-m", 0);
+ ranges[1] = _max * _max_factor;
+ }
((ssgRangeSelector *)_branch)->setRanges(ranges, 2);
-
}
SGRangeAnimation::~SGRangeAnimation ()
{
}
+int
+SGRangeAnimation::update()
+{
+ float ranges[2];
+ if ( _condition == 0 || _condition->test() ) {
+ if (_min_prop != 0) {
+ ranges[0] = _min_prop->getFloatValue() * _min_factor;
+ } else {
+ ranges[0] = _min * _min_factor;
+ }
+ if (_max_prop != 0) {
+ ranges[1] = _max_prop->getFloatValue() * _max_factor;
+ } else {
+ ranges[1] = _max * _max_factor;
+ }
+ } else {
+ ranges[0] = 0.f;
+ ranges[1] = 1000000000.f;
+ }
+ ((ssgRangeSelector *)_branch)->setRanges(ranges, 2);
+ return 1;
+}
+
\f
////////////////////////////////////////////////////////////////////////
delete _condition;
}
-void
+int
SGSelectAnimation::update()
{
if (_condition != 0 && _condition->test())
((ssgSelector *)_branch)->select(0xffff);
else
((ssgSelector *)_branch)->select(0x0000);
+ return 1;
}
_prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
_factor(props->getDoubleValue("factor", 1.0)),
_position_deg(props->getDoubleValue("starting-position-deg", 0)),
- _last_time_sec( sim_time_sec )
+ _last_time_sec( sim_time_sec ),
+ _condition(0)
{
+ SGPropertyNode_ptr node = props->getChild("condition");
+ if (node != 0)
+ _condition = sgReadCondition(prop_root, node);
+
_center[0] = 0;
_center[1] = 0;
_center[2] = 0;
{
}
-void
+int
SGSpinAnimation::update()
{
- double dt = sim_time_sec - _last_time_sec;
- _last_time_sec = sim_time_sec;
-
- float velocity_rpms = (_prop->getDoubleValue() * _factor / 60.0);
- _position_deg += (dt * velocity_rpms * 360);
- while (_position_deg < 0)
- _position_deg += 360.0;
- while (_position_deg >= 360.0)
- _position_deg -= 360.0;
- set_rotation(_matrix, _position_deg, _center, _axis);
- ((ssgTransform *)_branch)->setTransform(_matrix);
+ if ( _condition == 0 || _condition->test() ) {
+ double dt = sim_time_sec - _last_time_sec;
+ _last_time_sec = sim_time_sec;
+
+ float velocity_rpms = (_prop->getDoubleValue() * _factor / 60.0);
+ _position_deg += (dt * velocity_rpms * 360);
+ while (_position_deg < 0)
+ _position_deg += 360.0;
+ while (_position_deg >= 360.0)
+ _position_deg -= 360.0;
+ set_rotation(_matrix, _position_deg, _center, _axis);
+ ((ssgTransform *)_branch)->setTransform(_matrix);
+ }
+ return 1;
}
SGTimedAnimation::SGTimedAnimation (SGPropertyNode_ptr props)
: SGAnimation(props, new ssgSelector),
+ _use_personality( props->getBoolValue("use-personality",false) ),
_duration_sec(props->getDoubleValue("duration-sec", 1.0)),
- _last_time_sec(0),
- _step(-1)
+ _last_time_sec( sim_time_sec ),
+ _total_duration_sec( 0 ),
+ _step( 0 )
+
{
+ vector<SGPropertyNode_ptr> nodes = props->getChildren( "branch-duration-sec" );
+ size_t nb = nodes.size();
+ for ( size_t i = 0; i < nb; i++ ) {
+ size_t ind = nodes[ i ]->getIndex();
+ while ( ind >= _branch_duration_specs.size() ) {
+ _branch_duration_specs.push_back( DurationSpec( _duration_sec ) );
+ }
+ SGPropertyNode_ptr rNode = nodes[ i ]->getChild("random");
+ if ( rNode == 0 ) {
+ _branch_duration_specs[ ind ] = DurationSpec( nodes[ i ]->getDoubleValue() );
+ } else {
+ _branch_duration_specs[ ind ] = DurationSpec( rNode->getDoubleValue( "min", 0.0 ),
+ rNode->getDoubleValue( "max", 1.0 ) );
+ }
+ }
}
SGTimedAnimation::~SGTimedAnimation ()
}
void
+SGTimedAnimation::init()
+{
+ if ( !_use_personality ) {
+ for ( size_t i = 0; i < getBranch()->getNumKids(); i++ ) {
+ double v;
+ if ( i < _branch_duration_specs.size() ) {
+ DurationSpec &sp = _branch_duration_specs[ i ];
+ v = sp._min + sg_random() * ( sp._max - sp._min );
+ } else {
+ v = _duration_sec;
+ }
+ _branch_duration_sec.push_back( v );
+ _total_duration_sec += v;
+ }
+ // Sanity check : total duration shouldn't equal zero
+ if ( _total_duration_sec < 0.01 ) {
+ _total_duration_sec = 0.01;
+ }
+ }
+ ((ssgSelector *)getBranch())->selectStep(_step);
+}
+
+int
SGTimedAnimation::update()
{
- if ((sim_time_sec - _last_time_sec) >= _duration_sec) {
- _last_time_sec = sim_time_sec;
- _step++;
- if (_step >= getBranch()->getNumKids())
- _step = 0;
- ((ssgSelector *)getBranch())->selectStep(_step);
+ if ( _use_personality ) {
+ SGPersonalityBranch *key = current_object;
+ if ( !key->getIntValue( this, INIT ) ) {
+ double total = 0;
+ double offset = 1.0;
+ for ( size_t i = 0; i < _branch_duration_specs.size(); i++ ) {
+ DurationSpec &sp = _branch_duration_specs[ i ];
+ double v = sp._min + sg_random() * ( sp._max - sp._min );
+ key->setDoubleValue( v, this, BRANCH_DURATION_SEC, i );
+ if ( i == 0 )
+ offset = v;
+ total += v;
+ }
+ // Sanity check : total duration shouldn't equal zero
+ if ( total < 0.01 ) {
+ total = 0.01;
+ }
+ offset *= sg_random();
+ key->setDoubleValue( sim_time_sec - offset, this, LAST_TIME_SEC );
+ key->setDoubleValue( total, this, TOTAL_DURATION_SEC );
+ key->setIntValue( 0, this, STEP );
+ key->setIntValue( 1, this, INIT );
+ }
+
+ _step = key->getIntValue( this, STEP );
+ _last_time_sec = key->getDoubleValue( this, LAST_TIME_SEC );
+ _total_duration_sec = key->getDoubleValue( this, TOTAL_DURATION_SEC );
+ while ( ( sim_time_sec - _last_time_sec ) >= _total_duration_sec ) {
+ _last_time_sec += _total_duration_sec;
+ }
+ double duration = _duration_sec;
+ if ( _step < (int)_branch_duration_specs.size() ) {
+ duration = key->getDoubleValue( this, BRANCH_DURATION_SEC, _step );
+ }
+ if ( ( sim_time_sec - _last_time_sec ) >= duration ) {
+ _last_time_sec += duration;
+ _step += 1;
+ if ( _step >= getBranch()->getNumKids() )
+ _step = 0;
+ }
+ ((ssgSelector *)getBranch())->selectStep( _step );
+ key->setDoubleValue( _last_time_sec, this, LAST_TIME_SEC );
+ key->setIntValue( _step, this, STEP );
+ } else {
+ while ( ( sim_time_sec - _last_time_sec ) >= _total_duration_sec ) {
+ _last_time_sec += _total_duration_sec;
+ }
+ double duration = _duration_sec;
+ if ( _step < (int)_branch_duration_sec.size() ) {
+ duration = _branch_duration_sec[ _step ];
+ }
+ if ( ( sim_time_sec - _last_time_sec ) >= duration ) {
+ _last_time_sec += duration;
+ _step += 1;
+ if ( _step >= getBranch()->getNumKids() )
+ _step = 0;
+ ((ssgSelector *)getBranch())->selectStep( _step );
+ }
}
+ return 1;
}
_min_deg(props->getDoubleValue("min-deg")),
_has_max(props->hasValue("max-deg")),
_max_deg(props->getDoubleValue("max-deg")),
- _position_deg(props->getDoubleValue("starting-position-deg", 0))
+ _position_deg(props->getDoubleValue("starting-position-deg", 0)),
+ _condition(0)
{
+ SGPropertyNode_ptr node = props->getChild("condition");
+ if (node != 0)
+ _condition = sgReadCondition(prop_root, node);
+
_center[0] = 0;
_center[1] = 0;
_center[2] = 0;
delete _table;
}
-void
+int
SGRotateAnimation::update()
{
+ if (_condition == 0 || _condition->test()) {
+ if (_table == 0) {
+ _position_deg = _prop->getDoubleValue() * _factor + _offset_deg;
+ if (_has_min && _position_deg < _min_deg)
+ _position_deg = _min_deg;
+ if (_has_max && _position_deg > _max_deg)
+ _position_deg = _max_deg;
+ } else {
+ _position_deg = _table->interpolate(_prop->getDoubleValue());
+ }
+ set_rotation(_matrix, _position_deg, _center, _axis);
+ ((ssgTransform *)_branch)->setTransform(_matrix);
+ }
+ return 1;
+}
+
+\f
+////////////////////////////////////////////////////////////////////////
+// Implementation of SGBlendAnimation
+////////////////////////////////////////////////////////////////////////
+
+SGBlendAnimation::SGBlendAnimation( SGPropertyNode *prop_root,
+ SGPropertyNode_ptr props )
+ : SGAnimation(props, new ssgTransform),
+ _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
+ _table(read_interpolation_table(props)),
+ _prev_value(1.0),
+ _offset(props->getDoubleValue("offset", 0.0)),
+ _factor(props->getDoubleValue("factor", 1.0)),
+ _has_min(props->hasValue("min")),
+ _min(props->getDoubleValue("min", 0.0)),
+ _has_max(props->hasValue("max")),
+ _max(props->getDoubleValue("max", 1.0))
+{
+}
+
+SGBlendAnimation::~SGBlendAnimation ()
+{
+ delete _table;
+}
+
+int
+SGBlendAnimation::update()
+{
+ double _blend;
+
if (_table == 0) {
- _position_deg = _prop->getDoubleValue() * _factor + _offset_deg;
- if (_has_min && _position_deg < _min_deg)
- _position_deg = _min_deg;
- if (_has_max && _position_deg > _max_deg)
- _position_deg = _max_deg;
+ _blend = 1.0 - (_prop->getDoubleValue() * _factor + _offset);
+
+ if (_has_min && (_blend < _min))
+ _blend = _min;
+ if (_has_max && (_blend > _max))
+ _blend = _max;
} else {
- _position_deg = _table->interpolate(_prop->getDoubleValue());
+ _blend = _table->interpolate(_prop->getDoubleValue());
}
- set_rotation(_matrix, _position_deg, _center, _axis);
- ((ssgTransform *)_branch)->setTransform(_matrix);
+
+ if (_blend != _prev_value) {
+ _prev_value = _blend;
+ change_alpha( _branch, _blend );
+ }
+ return 1;
}
_min_m(props->getDoubleValue("min-m")),
_has_max(props->hasValue("max-m")),
_max_m(props->getDoubleValue("max-m")),
- _position_m(props->getDoubleValue("starting-position-m", 0))
+ _position_m(props->getDoubleValue("starting-position-m", 0)),
+ _condition(0)
{
+ SGPropertyNode_ptr node = props->getChild("condition");
+ if (node != 0)
+ _condition = sgReadCondition(prop_root, node);
+
_axis[0] = props->getFloatValue("axis/x", 0);
_axis[1] = props->getFloatValue("axis/y", 0);
_axis[2] = props->getFloatValue("axis/z", 0);
delete _table;
}
-void
+int
SGTranslateAnimation::update()
{
+ if (_condition == 0 || _condition->test()) {
+ if (_table == 0) {
+ _position_m = (_prop->getDoubleValue() + _offset_m) * _factor;
+ if (_has_min && _position_m < _min_m)
+ _position_m = _min_m;
+ if (_has_max && _position_m > _max_m)
+ _position_m = _max_m;
+ } else {
+ _position_m = _table->interpolate(_prop->getDoubleValue());
+ }
+ set_translation(_matrix, _position_m, _axis);
+ ((ssgTransform *)_branch)->setTransform(_matrix);
+ }
+ return 1;
+}
+
+
+\f
+////////////////////////////////////////////////////////////////////////
+// Implementation of SGScaleAnimation
+////////////////////////////////////////////////////////////////////////
+
+SGScaleAnimation::SGScaleAnimation( SGPropertyNode *prop_root,
+ SGPropertyNode_ptr props )
+ : SGAnimation(props, new ssgTransform),
+ _prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true)),
+ _x_factor(props->getDoubleValue("x-factor", 1.0)),
+ _y_factor(props->getDoubleValue("y-factor", 1.0)),
+ _z_factor(props->getDoubleValue("z-factor", 1.0)),
+ _x_offset(props->getDoubleValue("x-offset", 1.0)),
+ _y_offset(props->getDoubleValue("y-offset", 1.0)),
+ _z_offset(props->getDoubleValue("z-offset", 1.0)),
+ _table(read_interpolation_table(props)),
+ _has_min_x(props->hasValue("x-min")),
+ _has_min_y(props->hasValue("y-min")),
+ _has_min_z(props->hasValue("z-min")),
+ _min_x(props->getDoubleValue("x-min")),
+ _min_y(props->getDoubleValue("y-min")),
+ _min_z(props->getDoubleValue("z-min")),
+ _has_max_x(props->hasValue("x-max")),
+ _has_max_y(props->hasValue("y-max")),
+ _has_max_z(props->hasValue("z-max")),
+ _max_x(props->getDoubleValue("x-max")),
+ _max_y(props->getDoubleValue("y-max")),
+ _max_z(props->getDoubleValue("z-max"))
+{
+}
+
+SGScaleAnimation::~SGScaleAnimation ()
+{
+ delete _table;
+}
+
+int
+SGScaleAnimation::update()
+{
+ if (_table == 0) {
+ _x_scale = _prop->getDoubleValue() * _x_factor + _x_offset;
+ if (_has_min_x && _x_scale < _min_x)
+ _x_scale = _min_x;
+ if (_has_max_x && _x_scale > _max_x)
+ _x_scale = _max_x;
+ } else {
+ _x_scale = _table->interpolate(_prop->getDoubleValue());
+ }
+
if (_table == 0) {
- _position_m = (_prop->getDoubleValue() + _offset_m) * _factor;
- if (_has_min && _position_m < _min_m)
- _position_m = _min_m;
- if (_has_max && _position_m > _max_m)
- _position_m = _max_m;
+ _y_scale = _prop->getDoubleValue() * _y_factor + _y_offset;
+ if (_has_min_y && _y_scale < _min_y)
+ _y_scale = _min_y;
+ if (_has_max_y && _y_scale > _max_y)
+ _y_scale = _max_y;
} else {
- _position_m = _table->interpolate(_prop->getDoubleValue());
+ _y_scale = _table->interpolate(_prop->getDoubleValue());
}
- set_translation(_matrix, _position_m, _axis);
+
+ if (_table == 0) {
+ _z_scale = _prop->getDoubleValue() * _z_factor + _z_offset;
+ if (_has_min_z && _z_scale < _min_z)
+ _z_scale = _min_z;
+ if (_has_max_z && _z_scale > _max_z)
+ _z_scale = _max_z;
+ } else {
+ _z_scale = _table->interpolate(_prop->getDoubleValue());
+ }
+
+ set_scale(_matrix, _x_scale, _y_scale, _z_scale );
((ssgTransform *)_branch)->setTransform(_matrix);
+ return 1;
}
delete _table;
}
-void
+int
SGTexRotateAnimation::update()
{
if (_table == 0) {
}
set_rotation(_matrix, _position_deg, _center, _axis);
((ssgTexTrans *)_branch)->setTransform(_matrix);
+ return 1;
}
delete _table;
}
-void
+int
SGTexTranslateAnimation::update()
{
if (_table == 0) {
- if(_step > 0) {
- double scrollval = 0.0;
- if(_scroll > 0) {
- // calculate scroll amount (for odometer like movement)
- double remainder = _step - fmod(fabs(_prop->getDoubleValue()), _step);
- if (remainder < _scroll) {
- scrollval = (_scroll - remainder) / _scroll * _step;
- }
- }
- // apply stepping of input value
- if(_prop->getDoubleValue() > 0)
- _position = ((floor(_prop->getDoubleValue()/_step) * _step) + _offset + scrollval) * _factor;
- else
- _position = ((ceil(_prop->getDoubleValue()/_step) * _step) + _offset + scrollval) * _factor;
- } else {
- _position = (_prop->getDoubleValue() + _offset) * _factor;
- }
+ _position = (apply_mods(_prop->getDoubleValue(), _step, _scroll) + _offset) * _factor;
if (_has_min && _position < _min)
_position = _min;
if (_has_max && _position > _max)
_position = _max;
} else {
- _position = _table->interpolate(_prop->getDoubleValue());
+ _position = _table->interpolate(apply_mods(_prop->getDoubleValue(), _step, _scroll));
}
set_translation(_matrix, _position, _axis);
((ssgTexTrans *)_branch)->setTransform(_matrix);
+ return 1;
}
: SGAnimation(props, new ssgTexTrans),
_prop((SGPropertyNode *)prop_root->getNode(props->getStringValue("property", "/null"), true))
{
- int i;
+ unsigned int i;
// Load animations
vector<SGPropertyNode_ptr> transform_nodes = props->getChildren("transform");
_transform = new TexTransform [transform_nodes.size()];
delete _transform;
}
-void
+int
SGTexMultipleAnimation::update()
{
int i;
// subtype 0 is translation
if (_transform[i].table == 0) {
- if(_transform[i].step > 0) {
- double scrollval = 0.0;
- if(_transform[i].scroll > 0) {
- // calculate scroll amount (for odometer like movement)
- double remainder = _transform[i].step - fmod(fabs(_transform[i].prop->getDoubleValue()), _transform[i].step);
- if (remainder < _transform[i].scroll) {
- scrollval = (_transform[i].scroll - remainder) / _transform[i].scroll * _transform[i].step;
- }
- }
- // apply stepping of input value
- if(_transform[i].prop->getDoubleValue() > 0)
- _transform[i].position = ((floor(_transform[i].prop->getDoubleValue()/_transform[i].step) * _transform[i].step) + _transform[i].offset) * _transform[i].factor;
- else
- _transform[i].position = ((ceil(_transform[i].prop->getDoubleValue()/_transform[i].step) * _transform[i].step) + _transform[i].offset) * _transform[i].factor;
- } else {
- _transform[i].position = (_transform[i].prop->getDoubleValue() + _transform[i].offset) * _transform[i].factor;
- }
+ _transform[i].position = (apply_mods(_transform[i].prop->getDoubleValue(), _transform[i].step,_transform[i].scroll) + _transform[i].offset) * _transform[i].factor;
if (_transform[i].has_min && _transform[i].position < _transform[i].min)
_transform[i].position = _transform[i].min;
if (_transform[i].has_max && _transform[i].position > _transform[i].max)
_transform[i].position = _transform[i].max;
} else {
- _transform[i].position = _transform[i].table->interpolate(_transform[i].prop->getDoubleValue());
+ _transform[i].position = _transform[i].table->interpolate(apply_mods(_transform[i].prop->getDoubleValue(), _transform[i].step,_transform[i].scroll));
}
set_translation(_transform[i].matrix, _transform[i].position, _transform[i].axis);
sgPreMultMat4(tmatrix, _transform[i].matrix);
}
}
((ssgTexTrans *)_branch)->setTransform(tmatrix);
+ return 1;
+}
+
+
+\f
+////////////////////////////////////////////////////////////////////////
+// Implementation of SGAlphaTestAnimation
+////////////////////////////////////////////////////////////////////////
+
+SGAlphaTestAnimation::SGAlphaTestAnimation(SGPropertyNode_ptr props)
+ : SGAnimation(props, new ssgBranch)
+{
+ _alpha_clamp = props->getFloatValue("alpha-factor", 0.0);
+}
+
+SGAlphaTestAnimation::~SGAlphaTestAnimation ()
+{
+}
+
+void SGAlphaTestAnimation::init()
+{
+ setAlphaClampToBranch(_branch,_alpha_clamp);
+}
+
+void SGAlphaTestAnimation::setAlphaClampToBranch(ssgBranch *b, float clamp)
+{
+ int nb = b->getNumKids();
+ for (int i = 0; i<nb; i++) {
+ ssgEntity *e = b->getKid(i);
+ if (e->isAKindOf(ssgTypeLeaf())) {
+ ssgSimpleState*s = (ssgSimpleState*)((ssgLeaf*)e)->getState();
+ s->enable( GL_ALPHA_TEST );
+ s->setAlphaClamp( clamp );
+ } else if (e->isAKindOf(ssgTypeBranch())) {
+ setAlphaClampToBranch( (ssgBranch*)e, clamp );
+ }
+ }
+}
+
+
+\f
+////////////////////////////////////////////////////////////////////////
+// Implementation of SGFlashAnimation
+////////////////////////////////////////////////////////////////////////
+SGFlashAnimation::SGFlashAnimation(SGPropertyNode_ptr props)
+ : SGAnimation( props, new SGCustomTransform )
+{
+ _axis[0] = props->getFloatValue("axis/x", 0);
+ _axis[1] = props->getFloatValue("axis/y", 0);
+ _axis[2] = props->getFloatValue("axis/z", 1);
+
+ _center[0] = props->getFloatValue("center/x-m", 0);
+ _center[1] = props->getFloatValue("center/y-m", 0);
+ _center[2] = props->getFloatValue("center/z-m", 0);
+
+ _offset = props->getFloatValue("offset", 0.0);
+ _factor = props->getFloatValue("factor", 1.0);
+ _power = props->getFloatValue("power", 1.0);
+ _two_sides = props->getBoolValue("two-sides", false);
+
+ _min_v = props->getFloatValue("min", 0.0);
+ _max_v = props->getFloatValue("max", 1.0);
+
+ ((SGCustomTransform *)_branch)->setTransCallback( &SGFlashAnimation::flashCallback, this );
+}
+
+SGFlashAnimation::~SGFlashAnimation()
+{
+}
+
+void SGFlashAnimation::flashCallback( sgMat4 r, sgFrustum *f, sgMat4 m, void *d )
+{
+ ((SGFlashAnimation *)d)->flashCallback( r, f, m );
+}
+
+void SGFlashAnimation::flashCallback( sgMat4 r, sgFrustum *f, sgMat4 m )
+{
+ sgVec3 transformed_axis;
+ sgXformVec3( transformed_axis, _axis, m );
+ sgNormalizeVec3( transformed_axis );
+
+ sgVec3 view;
+ sgFullXformPnt3( view, _center, m );
+ sgNormalizeVec3( view );
+
+ float cos_angle = -sgScalarProductVec3( transformed_axis, view );
+ float scale_factor = 0.f;
+ if ( _two_sides && cos_angle < 0 )
+ scale_factor = _factor * (float)pow( -cos_angle, _power ) + _offset;
+ else if ( cos_angle > 0 )
+ scale_factor = _factor * (float)pow( cos_angle, _power ) + _offset;
+
+ if ( scale_factor < _min_v )
+ scale_factor = _min_v;
+ if ( scale_factor > _max_v )
+ scale_factor = _max_v;
+
+ sgMat4 transform;
+ sgMakeIdentMat4( transform );
+ transform[0][0] = scale_factor;
+ transform[1][1] = scale_factor;
+ transform[2][2] = scale_factor;
+ transform[3][0] = _center[0] * ( 1 - scale_factor );
+ transform[3][1] = _center[1] * ( 1 - scale_factor );
+ transform[3][2] = _center[2] * ( 1 - scale_factor );
+
+ sgCopyMat4( r, m );
+ sgPreMultMat4( r, transform );
+}
+
+
+\f
+////////////////////////////////////////////////////////////////////////
+// Implementation of SGDistScaleAnimation
+////////////////////////////////////////////////////////////////////////
+SGDistScaleAnimation::SGDistScaleAnimation(SGPropertyNode_ptr props)
+ : SGAnimation( props, new SGCustomTransform ),
+ _factor(props->getFloatValue("factor", 1.0)),
+ _offset(props->getFloatValue("offset", 0.0)),
+ _min_v(props->getFloatValue("min", 0.0)),
+ _max_v(props->getFloatValue("max", 1.0)),
+ _has_min(props->hasValue("min")),
+ _has_max(props->hasValue("max")),
+ _table(read_interpolation_table(props))
+{
+ _center[0] = props->getFloatValue("center/x-m", 0);
+ _center[1] = props->getFloatValue("center/y-m", 0);
+ _center[2] = props->getFloatValue("center/z-m", 0);
+
+ ((SGCustomTransform *)_branch)->setTransCallback( &SGDistScaleAnimation::distScaleCallback, this );
+}
+
+SGDistScaleAnimation::~SGDistScaleAnimation()
+{
+}
+
+void SGDistScaleAnimation::distScaleCallback( sgMat4 r, sgFrustum *f, sgMat4 m, void *d )
+{
+ ((SGDistScaleAnimation *)d)->distScaleCallback( r, f, m );
+}
+
+void SGDistScaleAnimation::distScaleCallback( sgMat4 r, sgFrustum *f, sgMat4 m )
+{
+ sgVec3 view;
+ sgFullXformPnt3( view, _center, m );
+
+ float scale_factor = sgLengthVec3( view );
+ if (_table == 0) {
+ scale_factor = _factor * scale_factor + _offset;
+ if ( _has_min && scale_factor < _min_v )
+ scale_factor = _min_v;
+ if ( _has_max && scale_factor > _max_v )
+ scale_factor = _max_v;
+ } else {
+ scale_factor = _table->interpolate( scale_factor );
+ }
+
+ sgMat4 transform;
+ sgMakeIdentMat4( transform );
+ transform[0][0] = scale_factor;
+ transform[1][1] = scale_factor;
+ transform[2][2] = scale_factor;
+ transform[3][0] = _center[0] * ( 1 - scale_factor );
+ transform[3][1] = _center[1] * ( 1 - scale_factor );
+ transform[3][2] = _center[2] * ( 1 - scale_factor );
+
+ sgCopyMat4( r, m );
+ sgPreMultMat4( r, transform );
}
// end of animation.cxx