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00015 #include "occluderEffect.h"
00016 #include "pandaNode.h"
00017 #include "graphicsStateGuardianBase.h"
00018 #include "bamReader.h"
00019 #include "bamWriter.h"
00020 #include "datagram.h"
00021 #include "datagramIterator.h"
00022 #include "config_pgraph.h"
00023 #include "attribNodeRegistry.h"
00024
00025 CPT(RenderEffect) OccluderEffect::_empty_effect;
00026 TypeHandle OccluderEffect::_type_handle;
00027
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00030
00031
00032
00033
00034 CPT(RenderEffect) OccluderEffect::
00035 make() {
00036
00037
00038 if (_empty_effect == (RenderEffect *)NULL) {
00039 _empty_effect = return_new(new OccluderEffect);
00040 }
00041
00042 return _empty_effect;
00043 }
00044
00045
00046
00047
00048
00049
00050
00051
00052 CPT(RenderEffect) OccluderEffect::
00053 add_on_occluder(const NodePath &occluder) const {
00054 nassertr(!occluder.is_empty() && occluder.node()->is_of_type(OccluderNode::get_class_type()), this);
00055 OccluderEffect *effect = new OccluderEffect(*this);
00056 effect->_on_occluders.insert(occluder);
00057
00058 pair<Occluders::iterator, bool> insert_result =
00059 effect->_on_occluders.insert(Occluders::value_type(occluder));
00060
00061 return return_new(effect);
00062 }
00063
00064
00065
00066
00067
00068
00069
00070
00071 CPT(RenderEffect) OccluderEffect::
00072 remove_on_occluder(const NodePath &occluder) const {
00073 nassertr(!occluder.is_empty() && occluder.node()->is_of_type(OccluderNode::get_class_type()), this);
00074 OccluderEffect *effect = new OccluderEffect(*this);
00075 effect->_on_occluders.erase(occluder);
00076 return return_new(effect);
00077 }
00078
00079
00080
00081
00082
00083
00084 void OccluderEffect::
00085 output(ostream &out) const {
00086 out << get_type() << ":";
00087 if (_on_occluders.empty()) {
00088 out << "identity";
00089 } else {
00090 out << "on";
00091
00092 Occluders::const_iterator li;
00093 for (li = _on_occluders.begin(); li != _on_occluders.end(); ++li) {
00094 NodePath occluder = (*li);
00095 out << " " << occluder;
00096 }
00097 }
00098 }
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00114
00115 int OccluderEffect::
00116 compare_to_impl(const RenderEffect *other) const {
00117 const OccluderEffect *ta;
00118 DCAST_INTO_R(ta, other, 0);
00119
00120 Occluders::const_iterator li = _on_occluders.begin();
00121 Occluders::const_iterator oli = ta->_on_occluders.begin();
00122
00123 while (li != _on_occluders.end() && oli != ta->_on_occluders.end()) {
00124 NodePath occluder = (*li);
00125 NodePath other_occluder = (*oli);
00126
00127 int compare = occluder.compare_to(other_occluder);
00128 if (compare != 0) {
00129 return compare;
00130 }
00131
00132 ++li;
00133 ++oli;
00134 }
00135
00136 if (li != _on_occluders.end()) {
00137 return 1;
00138 }
00139 if (oli != ta->_on_occluders.end()) {
00140 return -1;
00141 }
00142
00143 return 0;
00144 }
00145
00146
00147
00148
00149
00150
00151
00152 void OccluderEffect::
00153 register_with_read_factory() {
00154 BamReader::get_factory()->register_factory(get_class_type(), make_from_bam);
00155 }
00156
00157
00158
00159
00160
00161
00162
00163 void OccluderEffect::
00164 write_datagram(BamWriter *manager, Datagram &dg) {
00165 RenderEffect::write_datagram(manager, dg);
00166
00167
00168 dg.add_uint16(get_num_on_occluders());
00169
00170 Occluders::const_iterator nti;
00171 for (nti = _on_occluders.begin(); nti != _on_occluders.end(); ++nti) {
00172 NodePath occluder = (*nti);
00173 manager->write_pointer(dg, occluder.node());
00174 }
00175 }
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00182
00183
00184 int OccluderEffect::
00185 complete_pointers(TypedWritable **p_list, BamReader *manager) {
00186 int pi = RenderEffect::complete_pointers(p_list, manager);
00187 AttribNodeRegistry *areg = AttribNodeRegistry::get_global_ptr();
00188
00189 Occluders::iterator ci;
00190 ci = _on_occluders.begin();
00191 while (ci != _on_occluders.end()) {
00192 PandaNode *node;
00193 DCAST_INTO_R(node, p_list[pi++], pi);
00194
00195 int ni = areg->find_node(node->get_type(), node->get_name());
00196 if (ni != -1) {
00197 (*ci) = areg->get_node(ni);
00198 } else {
00199 (*ci) = NodePath(node);
00200 }
00201 ++ci;
00202 }
00203 _on_occluders.sort();
00204
00205 return pi;
00206 }
00207
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00218 bool OccluderEffect::
00219 require_fully_complete() const {
00220 return true;
00221 }
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00230
00231 TypedWritable *OccluderEffect::
00232 make_from_bam(const FactoryParams ¶ms) {
00233 OccluderEffect *effect = new OccluderEffect;
00234 DatagramIterator scan;
00235 BamReader *manager;
00236
00237 parse_params(params, scan, manager);
00238 effect->fillin(scan, manager);
00239
00240 return effect;
00241 }
00242
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00249
00250 void OccluderEffect::
00251 fillin(DatagramIterator &scan, BamReader *manager) {
00252 RenderEffect::fillin(scan, manager);
00253
00254
00255
00256 int num_on_occluders = scan.get_uint16();
00257 _on_occluders.reserve(num_on_occluders);
00258 for (int i = 0; i < num_on_occluders; i++) {
00259 manager->read_pointer(scan);
00260 _on_occluders.push_back(NodePath());
00261 }
00262 }