godot/editor/plugins/particles_editor_plugin.cpp
Rémi Verschelde 01afc442c7 Signals: Port connect calls to use callable_mp
Remove now unnecessary bindings of signal callbacks in the public API.
There might be some false positives that need rebinding if they were
meant to be public.

No regular expressions were harmed in the making of this commit.
(Nah, just kidding.)
2020-02-28 14:24:09 +01:00

494 lines
14 KiB
C++

/*************************************************************************/
/* particles_editor_plugin.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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 "core/io/resource_loader.h"
#include "editor/plugins/spatial_editor_plugin.h"
#include "scene/3d/cpu_particles.h"
#include "scene/resources/particles_material.h"
bool ParticlesEditorBase::_generate(Vector<Vector3> &points, Vector<Vector3> &normals) {
bool use_normals = emission_fill->get_selected() == 1;
if (emission_fill->get_selected() < 2) {
float area_accum = 0;
Map<float, int> triangle_area_map;
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) {
EditorNode::get_singleton()->show_warning(TTR("The geometry's faces don't contain any area."));
return false;
}
int emissor_count = emission_amount->get_value();
for (int i = 0; i < emissor_count; i++) {
float areapos = Math::random(0.0f, area_accum);
Map<float, int>::Element *E = triangle_area_map.find_closest(areapos);
ERR_FAIL_COND_V(!E, false);
int index = E->get();
ERR_FAIL_INDEX_V(index, geometry.size(), false);
// 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);
if (use_normals) {
Vector3 normal = face.get_plane().normal;
normals.push_back(normal);
}
}
} else {
int gcount = geometry.size();
if (gcount == 0) {
EditorNode::get_singleton()->show_warning(TTR("The geometry doesn't contain any faces."));
return false;
}
const Face3 *r = geometry.ptr();
AABB aabb;
for (int i = 0; i < gcount; i++) {
for (int j = 0; j < 3; j++) {
if (i == 0 && j == 0)
aabb.position = r[i].vertex[j];
else
aabb.expand_to(r[i].vertex[j]);
}
}
int emissor_count = emission_amount->get_value();
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) * Vector3(Math::randf(), Math::randf(), Math::randf()) * aabb.size + aabb.position;
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;
}
}
}
return true;
}
void ParticlesEditorBase::_node_selected(const NodePath &p_path) {
Node *sel = get_node(p_path);
if (!sel)
return;
if (!sel->is_class("Spatial")) {
EditorNode::get_singleton()->show_warning(vformat(TTR("\"%s\" doesn't inherit from Spatial."), sel->get_name()));
return;
}
VisualInstance *vi = Object::cast_to<VisualInstance>(sel);
if (!vi) {
EditorNode::get_singleton()->show_warning(vformat(TTR("\"%s\" doesn't contain geometry."), sel->get_name()));
return;
}
geometry = vi->get_faces(VisualInstance::FACES_SOLID);
if (geometry.size() == 0) {
EditorNode::get_singleton()->show_warning(vformat(TTR("\"%s\" doesn't contain face geometry."), sel->get_name()));
return;
}
Transform geom_xform = base_node->get_global_transform().affine_inverse() * vi->get_global_transform();
int gc = geometry.size();
Face3 *w = geometry.ptrw();
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]);
}
}
emission_dialog->popup_centered(Size2(300, 130));
}
void ParticlesEditorBase::_bind_methods() {
}
ParticlesEditorBase::ParticlesEditorBase() {
emission_dialog = memnew(ConfirmationDialog);
emission_dialog->set_title(TTR("Create Emitter"));
add_child(emission_dialog);
VBoxContainer *emd_vb = memnew(VBoxContainer);
emission_dialog->add_child(emd_vb);
emission_amount = memnew(SpinBox);
emission_amount->set_min(1);
emission_amount->set_max(100000);
emission_amount->set_value(512);
emd_vb->add_margin_child(TTR("Emission Points:"), emission_amount);
emission_fill = memnew(OptionButton);
emission_fill->add_item(TTR("Surface Points"));
emission_fill->add_item(TTR("Surface Points+Normal (Directed)"));
emission_fill->add_item(TTR("Volume"));
emd_vb->add_margin_child(TTR("Emission Source: "), emission_fill);
emission_dialog->get_ok()->set_text(TTR("Create"));
emission_dialog->connect("confirmed", callable_mp(this, &ParticlesEditorBase::_generate_emission_points));
emission_tree_dialog = memnew(SceneTreeDialog);
add_child(emission_tree_dialog);
emission_tree_dialog->connect("selected", callable_mp(this, &ParticlesEditorBase::_node_selected));
}
void ParticlesEditor::_node_removed(Node *p_node) {
if (p_node == node) {
node = NULL;
hide();
}
}
void ParticlesEditor::_notification(int p_notification) {
if (p_notification == NOTIFICATION_ENTER_TREE) {
options->set_icon(options->get_popup()->get_icon("Particles", "EditorIcons"));
get_tree()->connect("node_removed", callable_mp(this, &ParticlesEditor::_node_removed));
}
}
void ParticlesEditor::_menu_option(int p_option) {
switch (p_option) {
case MENU_OPTION_GENERATE_AABB: {
float gen_time = node->get_lifetime();
if (gen_time < 1.0)
generate_seconds->set_value(1.0);
else
generate_seconds->set_value(trunc(gen_time) + 1.0);
generate_aabb->popup_centered_minsize();
} break;
case MENU_OPTION_CREATE_EMISSION_VOLUME_FROM_NODE: {
Ref<ParticlesMaterial> material = node->get_process_material();
if (material.is_null()) {
EditorNode::get_singleton()->show_warning(TTR("A processor material of type 'ParticlesMaterial' is required."));
return;
}
emission_tree_dialog->popup_centered_ratio();
} break;
case MENU_OPTION_CONVERT_TO_CPU_PARTICLES: {
CPUParticles *cpu_particles = memnew(CPUParticles);
cpu_particles->convert_from_particles(node);
cpu_particles->set_name(node->get_name());
cpu_particles->set_transform(node->get_transform());
cpu_particles->set_visible(node->is_visible());
cpu_particles->set_pause_mode(node->get_pause_mode());
UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
ur->create_action(TTR("Convert to CPUParticles"));
ur->add_do_method(EditorNode::get_singleton()->get_scene_tree_dock(), "replace_node", node, cpu_particles, true, false);
ur->add_do_reference(cpu_particles);
ur->add_undo_method(EditorNode::get_singleton()->get_scene_tree_dock(), "replace_node", cpu_particles, node, false, false);
ur->add_undo_reference(node);
ur->commit_action();
} break;
case MENU_OPTION_RESTART: {
node->restart();
} break;
}
}
void ParticlesEditor::_generate_aabb() {
float time = generate_seconds->get_value();
float running = 0.0;
EditorProgress ep("gen_aabb", TTR("Generating AABB"), int(time));
bool was_emitting = node->is_emitting();
if (!was_emitting) {
node->set_emitting(true);
OS::get_singleton()->delay_usec(1000);
}
AABB rect;
while (running < time) {
uint64_t ticks = OS::get_singleton()->get_ticks_usec();
ep.step("Generating...", int(running), true);
OS::get_singleton()->delay_usec(1000);
AABB capture = node->capture_aabb();
if (rect == AABB())
rect = capture;
else
rect.merge_with(capture);
running += (OS::get_singleton()->get_ticks_usec() - ticks) / 1000000.0;
}
if (!was_emitting) {
node->set_emitting(false);
}
UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
ur->create_action(TTR("Generate Visibility AABB"));
ur->add_do_method(node, "set_visibility_aabb", rect);
ur->add_undo_method(node, "set_visibility_aabb", node->get_visibility_aabb());
ur->commit_action();
}
void ParticlesEditor::edit(Particles *p_particles) {
base_node = p_particles;
node = p_particles;
}
void ParticlesEditor::_generate_emission_points() {
/// hacer codigo aca
Vector<Vector3> points;
Vector<Vector3> normals;
if (!_generate(points, normals)) {
return;
}
int point_count = points.size();
int w = 2048;
int h = (point_count / 2048) + 1;
Vector<uint8_t> point_img;
point_img.resize(w * h * 3 * sizeof(float));
{
uint8_t *iw = point_img.ptrw();
zeromem(iw, w * h * 3 * sizeof(float));
const Vector3 *r = points.ptr();
float *wf = (float *)iw;
for (int i = 0; i < point_count; i++) {
wf[i * 3 + 0] = r[i].x;
wf[i * 3 + 1] = r[i].y;
wf[i * 3 + 2] = r[i].z;
}
}
Ref<Image> image = memnew(Image(w, h, false, Image::FORMAT_RGBF, point_img));
Ref<ImageTexture> tex;
tex.instance();
Ref<ParticlesMaterial> material = node->get_process_material();
ERR_FAIL_COND(material.is_null());
if (normals.size() > 0) {
material->set_emission_shape(ParticlesMaterial::EMISSION_SHAPE_DIRECTED_POINTS);
material->set_emission_point_count(point_count);
material->set_emission_point_texture(tex);
Vector<uint8_t> point_img2;
point_img2.resize(w * h * 3 * sizeof(float));
{
uint8_t *iw = point_img2.ptrw();
zeromem(iw, w * h * 3 * sizeof(float));
const Vector3 *r = normals.ptr();
float *wf = (float *)iw;
for (int i = 0; i < point_count; i++) {
wf[i * 3 + 0] = r[i].x;
wf[i * 3 + 1] = r[i].y;
wf[i * 3 + 2] = r[i].z;
}
}
Ref<Image> image2 = memnew(Image(w, h, false, Image::FORMAT_RGBF, point_img2));
Ref<ImageTexture> tex2;
tex2.instance();
material->set_emission_normal_texture(tex2);
} else {
material->set_emission_shape(ParticlesMaterial::EMISSION_SHAPE_POINTS);
material->set_emission_point_count(point_count);
material->set_emission_point_texture(tex);
}
}
void ParticlesEditor::_bind_methods() {
}
ParticlesEditor::ParticlesEditor() {
node = NULL;
particles_editor_hb = memnew(HBoxContainer);
SpatialEditor::get_singleton()->add_control_to_menu_panel(particles_editor_hb);
options = memnew(MenuButton);
options->set_switch_on_hover(true);
particles_editor_hb->add_child(options);
particles_editor_hb->hide();
options->set_text(TTR("Particles"));
options->get_popup()->add_item(TTR("Generate AABB"), MENU_OPTION_GENERATE_AABB);
options->get_popup()->add_separator();
options->get_popup()->add_item(TTR("Create Emission Points From Node"), MENU_OPTION_CREATE_EMISSION_VOLUME_FROM_NODE);
options->get_popup()->add_separator();
options->get_popup()->add_item(TTR("Convert to CPUParticles"), MENU_OPTION_CONVERT_TO_CPU_PARTICLES);
options->get_popup()->add_separator();
options->get_popup()->add_item(TTR("Restart"), MENU_OPTION_RESTART);
options->get_popup()->connect("id_pressed", callable_mp(this, &ParticlesEditor::_menu_option));
generate_aabb = memnew(ConfirmationDialog);
generate_aabb->set_title(TTR("Generate Visibility AABB"));
VBoxContainer *genvb = memnew(VBoxContainer);
generate_aabb->add_child(genvb);
generate_seconds = memnew(SpinBox);
genvb->add_margin_child(TTR("Generation Time (sec):"), generate_seconds);
generate_seconds->set_min(0.1);
generate_seconds->set_max(25);
generate_seconds->set_value(2);
add_child(generate_aabb);
generate_aabb->connect("confirmed", callable_mp(this, &ParticlesEditor::_generate_aabb));
}
void ParticlesEditorPlugin::edit(Object *p_object) {
particles_editor->edit(Object::cast_to<Particles>(p_object));
}
bool ParticlesEditorPlugin::handles(Object *p_object) const {
return p_object->is_class("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() {
}