mirror of
https://github.com/Relintai/pandemonium_engine_minimal.git
synced 2024-11-10 20:12:10 +01:00
263 lines
8.5 KiB
C++
263 lines
8.5 KiB
C++
/*************************************************************************/
|
|
/* particles_editor_plugin.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2022 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 "core/object/class_db.h"
|
|
#include "core/error/error_macros.h"
|
|
#include "core/containers/list.h"
|
|
#include "core/containers/rb_map.h"
|
|
#include "core/math/aabb.h"
|
|
#include "core/math/math_defs.h"
|
|
#include "core/math/math_funcs.h"
|
|
#include "core/math/plane.h"
|
|
#include "core/math/transform.h"
|
|
#include "core/math/vector2.h"
|
|
#include "core/math/vector3.h"
|
|
#include "core/os/memory.h"
|
|
#include "core/typedefs.h"
|
|
#include "core/string/ustring.h"
|
|
#include "core/variant/variant.h"
|
|
#include "editor/editor_file_dialog.h"
|
|
#include "editor/editor_node.h"
|
|
#include "editor/scene_tree_editor.h"
|
|
#include "scene/main/spatial.h"
|
|
#include "scene/3d/visual_instance.h"
|
|
#include "scene/gui/box_container.h"
|
|
#include "scene/gui/button.h"
|
|
#include "scene/gui/dialogs.h"
|
|
#include "scene/gui/option_button.h"
|
|
#include "scene/gui/spin_box.h"
|
|
#include "scene/main/node.h"
|
|
|
|
bool ParticlesEditorBase::_generate(PoolVector<Vector3> &points, PoolVector<Vector3> &normals) {
|
|
bool use_normals = emission_fill->get_selected() == 1;
|
|
|
|
if (emission_fill->get_selected() < 2) {
|
|
float area_accum = 0;
|
|
RBMap<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);
|
|
|
|
RBMap<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;
|
|
}
|
|
|
|
PoolVector<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.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();
|
|
PoolVector<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.release();
|
|
|
|
emission_dialog->popup_centered(Size2(300, 130));
|
|
}
|
|
|
|
void ParticlesEditorBase::_bind_methods() {
|
|
ClassDB::bind_method("_node_selected", &ParticlesEditorBase::_node_selected);
|
|
ClassDB::bind_method("_generate_emission_points", &ParticlesEditorBase::_generate_emission_points);
|
|
}
|
|
|
|
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", this, "_generate_emission_points");
|
|
|
|
emission_file_dialog = memnew(EditorFileDialog);
|
|
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(EditorFileDialog::MODE_OPEN_FILE);
|
|
}
|