/*************************************************************************/
/* particles_editor_plugin.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2015 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "particles_editor_plugin.h"
#include "io/resource_loader.h"
#include "servers/visual/particle_system_sw.h"
#include "tools/editor/plugins/spatial_editor_plugin.h"
void ParticlesEditor::_node_removed(Node *p_node) {
if(p_node==node) {
node=NULL;
hide();
}
}
void ParticlesEditor::_resource_seleted(const String& p_res) {
//print_line("selected resource path: "+p_res);
}
void ParticlesEditor::_node_selected(const NodePath& p_path){
Node *sel = get_node(p_path);
if (!sel)
return;
VisualInstance *vi = sel->cast_to<VisualInstance>();
if (!vi) {
err_dialog->set_text("Node does not contain geometry.");
err_dialog->popup_centered_minsize();
return;
}
geometry = vi->get_faces(VisualInstance::FACES_SOLID);
if (geometry.size()==0) {
err_dialog->set_text("Node does not contain geometry (faces).");
err_dialog->popup_centered_minsize();
return;
}
Transform geom_xform = node->get_global_transform().affine_inverse() * vi->get_global_transform();
int gc = geometry.size();
DVector<Face3>::Write w = geometry.write();
for(int i=0;i<gc;i++) {
for(int j=0;j<3;j++) {
w[i].vertex[j] = geom_xform.xform( w[i].vertex[j] );
}
}
w = DVector<Face3>::Write();
emission_dialog->popup_centered(Size2(300,130));
}
/*
void ParticlesEditor::_populate() {
if(!node)
return;
if (node->get_particles().is_null())
return;
node->get_particles()->set_instance_count(populate_amount->get_text().to_int());
node->populate_parent(populate_rotate_random->get_val(),populate_tilt_random->get_val(),populate_scale_random->get_text().to_double(),populate_scale->get_text().to_double());
}
*/
void ParticlesEditor::_notification(int p_notification) {
if (p_notification==NOTIFICATION_ENTER_TREE) {
}
}
void ParticlesEditor::_menu_option(int p_option) {
switch(p_option) {
case MENU_OPTION_GENERATE_AABB: {
Transform globalizer = node->get_global_transform();
ParticleSystemSW pssw;
for(int i=0;i<VS::PARTICLE_VAR_MAX;i++) {
pssw.particle_vars[i]=node->get_variable((Particles::Variable)i);
pssw.particle_randomness[i]=node->get_randomness((Particles::Variable)i);
}
pssw.emission_half_extents=node->get_emission_half_extents();
pssw.emission_points=node->get_emission_points();
pssw.emission_base_velocity=node->get_emission_base_velocity();
pssw.amount=node->get_amount();
pssw.gravity_normal=node->get_gravity_normal();
pssw.emitting=true;
pssw.height_from_velocity=node->has_height_from_velocity();
pssw.color_phase_count=1;
ParticleSystemProcessSW pp;
float delta=0.01;
float lifetime=pssw.particle_vars[VS::PARTICLE_LIFETIME];
Transform localizer = globalizer.affine_inverse();
AABB aabb;
for(float t=0;t<lifetime;t+=delta) {
pp.process(&pssw,globalizer,delta);
for(int i=0;i<pp.particle_data.size();i++) {
Vector3 p = localizer.xform(pp.particle_data[i].pos);
if (t==0 && i==0)
aabb.pos=p;
else
aabb.expand_to(p);
}
}
aabb.grow_by( aabb.get_longest_axis_size()*0.2);
node->set_visibility_aabb(aabb);
} break;
case MENU_OPTION_CREATE_EMISSION_VOLUME_FROM_MESH: {
emission_file_dialog->popup_centered_ratio();
} break;
case MENU_OPTION_CREATE_EMISSION_VOLUME_FROM_NODE: {
/*
Node *root = get_scene()->get_root_node();
ERR_FAIL_COND(!root);
EditorNode *en = root->cast_to<EditorNode>();
ERR_FAIL_COND(!en);
Node * node = en->get_edited_scene();
*/
emission_tree_dialog->popup_centered_ratio();
} break;
}
}
void ParticlesEditor::edit(Particles *p_particles) {
node=p_particles;
}
void ParticlesEditor::_generate_emission_points() {
/// hacer codigo aca
DVector<Vector3> points;
if (emission_fill->get_selected()==0) {
float area_accum=0;
Map<float,int> triangle_area_map;
print_line("geometry size: "+itos(geometry.size()));
for(int i=0;i<geometry.size();i++) {
float area = geometry[i].get_area();;
if (area<CMP_EPSILON)
continue;
triangle_area_map[area_accum]=i;
area_accum+=area;
}
if (!triangle_area_map.size() || area_accum==0) {
err_dialog->set_text("Faces contain no area!");
err_dialog->popup_centered_minsize();
return;
}
int emissor_count=emission_amount->get_val();
for(int i=0;i<emissor_count;i++) {
float areapos = Math::random(0,area_accum);
Map<float,int>::Element *E = triangle_area_map.find_closest(areapos);
ERR_FAIL_COND(!E)
int index = E->get();
ERR_FAIL_INDEX(index,geometry.size());
// ok FINALLY get face
Face3 face = geometry[index];
//now compute some position inside the face...
Vector3 pos = face.get_random_point_inside();
points.push_back(pos);
}
} else {
int gcount = geometry.size();
if (gcount==0) {
err_dialog->set_text("No Faces!");
err_dialog->popup_centered_minsize();
return;
}
DVector<Face3>::Read r = geometry.read();
AABB aabb;
for(int i=0;i<gcount;i++) {
for(int j=0;j<3;j++) {
if (i==0 && j==0)
aabb.pos=r[i].vertex[j];
else
aabb.expand_to(r[i].vertex[j]);
}
}
int emissor_count=emission_amount->get_val();
for(int i=0;i<emissor_count;i++) {
int attempts=5;
for(int j=0;j<attempts;j++) {
Vector3 dir;
dir[Math::rand()%3]=1.0;
Vector3 ofs = Vector3(1,1,1)-dir;
ofs=(Vector3(1,1,1)-dir)*Vector3(Math::randf(),Math::randf(),Math::randf())*aabb.size;
ofs+=aabb.pos;
Vector3 dirv = -dir;
Vector3 ofsv = ofs + aabb.size * dir;
//space it a little
ofs -= dir;
ofsv += dir;
float max=-1e7,min=1e7;
for(int k=0;k<gcount;k++) {
const Face3& f3 = r[k];
Vector3 res;
if (f3.intersects_segment(ofs,ofsv,&res)) {
res-=ofs;
float d = dir.dot(res);
if (d<min)
min=d;
if (d>max)
max=d;
}
}
if (max<min)
continue; //lost attempt
float val = min + (max-min)*Math::randf();
Vector3 point = ofs + dir * val;
points.push_back(point);
break;
}
}
}
//print_line("point count: "+itos(points.size()));
node->set_emission_points(points);
}
void ParticlesEditor::_bind_methods() {
ObjectTypeDB::bind_method("_menu_option",&ParticlesEditor::_menu_option);
ObjectTypeDB::bind_method("_resource_seleted",&ParticlesEditor::_resource_seleted);
ObjectTypeDB::bind_method("_node_selected",&ParticlesEditor::_node_selected);
ObjectTypeDB::bind_method("_generate_emission_points",&ParticlesEditor::_generate_emission_points);
//ObjectTypeDB::bind_method("_populate",&ParticlesEditor::_populate);
}
ParticlesEditor::ParticlesEditor() {
particles_editor_hb = memnew ( HBoxContainer );
SpatialEditor::get_singleton()->add_control_to_menu_panel(particles_editor_hb);
options = memnew( MenuButton );
particles_editor_hb->add_child(options);
particles_editor_hb->hide();
options->set_text("Particles");
options->get_popup()->add_item("Generate AABB",MENU_OPTION_GENERATE_AABB);
options->get_popup()->add_separator();
options->get_popup()->add_item("Create Emitter From Mesh",MENU_OPTION_CREATE_EMISSION_VOLUME_FROM_MESH);
options->get_popup()->add_item("Create Emitter From Node",MENU_OPTION_CREATE_EMISSION_VOLUME_FROM_NODE);
options->get_popup()->add_item("Clear Emitter",MENU_OPTION_CLEAR_EMISSION_VOLUME);
options->get_popup()->connect("item_pressed", this,"_menu_option");
emission_dialog = memnew( ConfirmationDialog );
emission_dialog->set_title("Create Emitter");
add_child(emission_dialog);
Label *l = memnew(Label);
l->set_pos(Point2(5,5));
l->set_text("Emission Positions:");
emission_dialog->add_child(l);
emission_amount = memnew( SpinBox );
emission_amount->set_anchor(MARGIN_RIGHT,ANCHOR_END);
emission_amount->set_begin( Point2(20,23));
emission_amount->set_end( Point2(5,25));
emission_amount->set_min(1);
emission_amount->set_max(65536);
emission_amount->set_val(512);
emission_dialog->add_child(emission_amount);
emission_dialog->get_ok()->set_text("Create");
emission_dialog->connect("confirmed",this,"_generate_emission_points");
l = memnew(Label);
l->set_pos(Point2(5,50));
l->set_text("Emission Fill:");
emission_dialog->add_child(l);
emission_fill = memnew( OptionButton );
emission_fill->set_anchor(MARGIN_RIGHT,ANCHOR_END);
emission_fill->set_begin( Point2(20,70));
emission_fill->set_end( Point2(5,75));
emission_fill->add_item("Surface");
emission_fill->add_item("Volume");
emission_dialog->add_child(emission_fill);
err_dialog = memnew( ConfirmationDialog );
//err_dialog->get_cancel()->hide();
add_child(err_dialog);
emission_file_dialog = memnew( FileDialog );
add_child(emission_file_dialog);
emission_file_dialog->connect("file_selected",this,"_resource_seleted");
emission_tree_dialog = memnew( SceneTreeDialog );
add_child(emission_tree_dialog);
emission_tree_dialog->connect("selected",this,"_node_selected");
List<String> extensions;
ResourceLoader::get_recognized_extensions_for_type("Mesh",&extensions);
emission_file_dialog->clear_filters();
for(int i=0;i<extensions.size();i++) {
emission_file_dialog->add_filter("*."+extensions[i]+" ; "+extensions[i].to_upper());
}
emission_file_dialog->set_mode(FileDialog::MODE_OPEN_FILE);
//options->set_anchor(MARGIN_LEFT,Control::ANCHOR_END);
//options->set_anchor(MARGIN_RIGHT,Control::ANCHOR_END);
}
void ParticlesEditorPlugin::edit(Object *p_object) {
particles_editor->edit(p_object->cast_to<Particles>());
}
bool ParticlesEditorPlugin::handles(Object *p_object) const {
return p_object->is_type("Particles");
}
void ParticlesEditorPlugin::make_visible(bool p_visible) {
if (p_visible) {
particles_editor->show();
particles_editor->particles_editor_hb->show();
} else {
particles_editor->particles_editor_hb->hide();
particles_editor->hide();
particles_editor->edit(NULL);
}
}
ParticlesEditorPlugin::ParticlesEditorPlugin(EditorNode *p_node) {
editor=p_node;
particles_editor = memnew( ParticlesEditor );
editor->get_viewport()->add_child(particles_editor);
particles_editor->hide();
}
ParticlesEditorPlugin::~ParticlesEditorPlugin()
{
}