godotengine
/
godot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
godot/editor/plugins/multimesh_editor_plugin.cpp

394 lines
12 KiB
C++
Raw Blame History

/*************************************************************************/
/* multimesh_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 "multimesh_editor_plugin.h"
#include "scene/3d/mesh_instance.h"
#include "scene/gui/box_container.h"
#include "spatial_editor_plugin.h"
void MultiMeshEditor::_node_removed(Node *p_node) {
if (p_node == node) {
node = nullptr;
hide();
}
}
void MultiMeshEditor::_populate() {
if (!node) {
return;
}
Ref<Mesh> mesh;
if (mesh_source->get_text() == "") {
Ref<MultiMesh> multimesh;
multimesh = node->get_multimesh();
if (multimesh.is_null()) {
err_dialog->set_text(TTR("No mesh source specified (and no MultiMesh set in node)."));
err_dialog->popup_centered_minsize();
return;
}
if (multimesh->get_mesh().is_null()) {
err_dialog->set_text(TTR("No mesh source specified (and MultiMesh contains no Mesh)."));
err_dialog->popup_centered_minsize();
return;
}
mesh = multimesh->get_mesh();
} else {
Node *ms_node = node->get_node(mesh_source->get_text());
if (!ms_node) {
err_dialog->set_text(TTR("Mesh source is invalid (invalid path)."));
err_dialog->popup_centered_minsize();
return;
}
MeshInstance *ms_instance = Object::cast_to<MeshInstance>(ms_node);
if (!ms_instance) {
err_dialog->set_text(TTR("Mesh source is invalid (not a MeshInstance)."));
err_dialog->popup_centered_minsize();
return;
}
mesh = ms_instance->get_mesh();
if (mesh.is_null()) {
err_dialog->set_text(TTR("Mesh source is invalid (contains no Mesh resource)."));
err_dialog->popup_centered_minsize();
return;
}
}
if (surface_source->get_text() == "") {
err_dialog->set_text(TTR("No surface source specified."));
err_dialog->popup_centered_minsize();
return;
}
Node *ss_node = node->get_node(surface_source->get_text());
if (!ss_node) {
err_dialog->set_text(TTR("Surface source is invalid (invalid path)."));
err_dialog->popup_centered_minsize();
return;
}
GeometryInstance *ss_instance = Object::cast_to<MeshInstance>(ss_node);
if (!ss_instance) {
err_dialog->set_text(TTR("Surface source is invalid (no geometry)."));
err_dialog->popup_centered_minsize();
return;
}
Transform geom_xform = node->get_global_transform().affine_inverse() * ss_instance->get_global_transform();
PoolVector<Face3> geometry = ss_instance->get_faces(VisualInstance::FACES_SOLID);
if (geometry.size() == 0) {
err_dialog->set_text(TTR("Surface source is invalid (no faces)."));
err_dialog->popup_centered_minsize();
return;
}
//make all faces local
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();
PoolVector<Face3> faces = geometry;
int facecount = faces.size();
ERR_FAIL_COND_MSG(!facecount, "Parent has no solid faces to populate.");
PoolVector<Face3>::Read r = faces.read();
float area_accum = 0;
Map<float, int> triangle_area_map;
for (int i = 0; i < facecount; i++) {
float area = r[i].get_area();
if (area < CMP_EPSILON) {
continue;
}
triangle_area_map[area_accum] = i;
area_accum += area;
}
ERR_FAIL_COND_MSG(triangle_area_map.size() == 0, "Couldn't map area.");
ERR_FAIL_COND_MSG(area_accum == 0, "Couldn't map area.");
Ref<MultiMesh> multimesh = memnew(MultiMesh);
multimesh->set_mesh(mesh);
int instance_count = populate_amount->get_value();
multimesh->set_transform_format(MultiMesh::TRANSFORM_3D);
multimesh->set_color_format(MultiMesh::COLOR_NONE);
multimesh->set_instance_count(instance_count);
float _tilt_random = populate_tilt_random->get_value();
float _rotate_random = populate_rotate_random->get_value();
float _scale_random = populate_scale_random->get_value();
float _scale = populate_scale->get_value();
int axis = populate_axis->get_selected();
Transform axis_xform;
if (axis == Vector3::AXIS_Z) {
axis_xform.rotate(Vector3(1, 0, 0), -Math_PI * 0.5);
}
if (axis == Vector3::AXIS_X) {
axis_xform.rotate(Vector3(0, 0, 1), -Math_PI * 0.5);
}
for (int i = 0; i < instance_count; i++) {
float areapos = Math::random(0.0f, 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, facecount);
// ok FINALLY get face
Face3 face = r[index];
//now compute some position inside the face...
Vector3 pos = face.get_random_point_inside();
Vector3 normal = face.get_plane().normal;
Vector3 op_axis = (face.vertex[0] - face.vertex[1]).normalized();
Transform xform;
xform.set_look_at(pos, pos + op_axis, normal);
xform = xform * axis_xform;
Basis post_xform;
post_xform.rotate(xform.basis.get_axis(1), -Math::random(-_rotate_random, _rotate_random) * Math_PI);
post_xform.rotate(xform.basis.get_axis(2), -Math::random(-_tilt_random, _tilt_random) * Math_PI);
post_xform.rotate(xform.basis.get_axis(0), -Math::random(-_tilt_random, _tilt_random) * Math_PI);
xform.basis = post_xform * xform.basis;
//xform.basis.orthonormalize();
xform.basis.scale(Vector3(1, 1, 1) * (_scale + Math::random(-_scale_random, _scale_random)));
multimesh->set_instance_transform(i, xform);
}
node->set_multimesh(multimesh);
}
void MultiMeshEditor::_browsed(const NodePath &p_path) {
NodePath path = node->get_path_to(get_node(p_path));
if (browsing_source) {
mesh_source->set_text(path);
} else {
surface_source->set_text(path);
}
}
void MultiMeshEditor::_menu_option(int p_option) {
switch (p_option) {
case MENU_OPTION_POPULATE: {
if (_last_pp_node != node) {
surface_source->set_text("..");
mesh_source->set_text("..");
populate_axis->select(1);
populate_rotate_random->set_value(0);
populate_tilt_random->set_value(0);
populate_scale_random->set_value(0);
populate_scale->set_value(1);
populate_amount->set_value(128);
_last_pp_node = node;
}
populate_dialog->popup_centered(Size2(250, 380));
} break;
}
}
void MultiMeshEditor::edit(MultiMeshInstance *p_multimesh) {
node = p_multimesh;
}
void MultiMeshEditor::_browse(bool p_source) {
browsing_source = p_source;
std->get_scene_tree()->set_marked(node, false);
std->popup_centered_ratio();
if (p_source) {
std->set_title(TTR("Select a Source Mesh:"));
} else {
std->set_title(TTR("Select a Target Surface:"));
}
}
void MultiMeshEditor::_bind_methods() {
ClassDB::bind_method("_menu_option", &MultiMeshEditor::_menu_option);
ClassDB::bind_method("_populate", &MultiMeshEditor::_populate);
ClassDB::bind_method("_browsed", &MultiMeshEditor::_browsed);
ClassDB::bind_method("_browse", &MultiMeshEditor::_browse);
}
MultiMeshEditor::MultiMeshEditor() {
options = memnew(MenuButton);
options->set_switch_on_hover(true);
SpatialEditor::get_singleton()->add_control_to_menu_panel(options);
options->set_text("MultiMesh");
options->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("MultiMeshInstance", "EditorIcons"));
options->get_popup()->add_item(TTR("Populate Surface"));
options->get_popup()->connect("id_pressed", this, "_menu_option");
populate_dialog = memnew(ConfirmationDialog);
populate_dialog->set_title(TTR("Populate MultiMesh"));
add_child(populate_dialog);
VBoxContainer *vbc = memnew(VBoxContainer);
populate_dialog->add_child(vbc);
//populate_dialog->set_child_rect(vbc);
HBoxContainer *hbc = memnew(HBoxContainer);
surface_source = memnew(LineEdit);
hbc->add_child(surface_source);
surface_source->set_h_size_flags(SIZE_EXPAND_FILL);
Button *b = memnew(Button);
hbc->add_child(b);
b->set_text("..");
b->connect("pressed", this, "_browse", make_binds(false));
vbc->add_margin_child(TTR("Target Surface:"), hbc);
hbc = memnew(HBoxContainer);
mesh_source = memnew(LineEdit);
hbc->add_child(mesh_source);
mesh_source->set_h_size_flags(SIZE_EXPAND_FILL);
b = memnew(Button);
hbc->add_child(b);
b->set_text("..");
vbc->add_margin_child(TTR("Source Mesh:"), hbc);
b->connect("pressed", this, "_browse", make_binds(true));
populate_axis = memnew(OptionButton);
populate_axis->add_item(TTR("X-Axis"));
populate_axis->add_item(TTR("Y-Axis"));
populate_axis->add_item(TTR("Z-Axis"));
populate_axis->select(2);
vbc->add_margin_child(TTR("Mesh Up Axis:"), populate_axis);
populate_rotate_random = memnew(HSlider);
populate_rotate_random->set_max(1);
populate_rotate_random->set_step(0.01);
vbc->add_margin_child(TTR("Random Rotation:"), populate_rotate_random);
populate_tilt_random = memnew(HSlider);
populate_tilt_random->set_max(1);
populate_tilt_random->set_step(0.01);
vbc->add_margin_child(TTR("Random Tilt:"), populate_tilt_random);
populate_scale_random = memnew(SpinBox);
populate_scale_random->set_min(0);
populate_scale_random->set_max(1);
populate_scale_random->set_value(0);
populate_scale_random->set_step(0.01);
vbc->add_margin_child(TTR("Random Scale:"), populate_scale_random);
populate_scale = memnew(SpinBox);
populate_scale->set_min(0.001);
populate_scale->set_max(4096);
populate_scale->set_value(1);
populate_scale->set_step(0.01);
vbc->add_margin_child(TTR("Scale:"), populate_scale);
populate_amount = memnew(SpinBox);
populate_amount->set_anchor(MARGIN_RIGHT, ANCHOR_END);
populate_amount->set_begin(Point2(20, 232));
populate_amount->set_end(Point2(-5, 237));
populate_amount->set_min(1);
populate_amount->set_max(65536);
populate_amount->set_value(128);
vbc->add_margin_child(TTR("Amount:"), populate_amount);
populate_dialog->get_ok()->set_text(TTR("Populate"));
populate_dialog->get_ok()->connect("pressed", this, "_populate");
std = memnew(SceneTreeDialog);
populate_dialog->add_child(std);
std->connect("selected", this, "_browsed");
_last_pp_node = nullptr;
err_dialog = memnew(AcceptDialog);
add_child(err_dialog);
}
void MultiMeshEditorPlugin::edit(Object *p_object) {
multimesh_editor->edit(Object::cast_to<MultiMeshInstance>(p_object));
}
bool MultiMeshEditorPlugin::handles(Object *p_object) const {
return p_object->is_class("MultiMeshInstance");
}
void MultiMeshEditorPlugin::make_visible(bool p_visible) {
if (p_visible) {
multimesh_editor->options->show();
} else {
multimesh_editor->options->hide();
multimesh_editor->edit(nullptr);
}
}
MultiMeshEditorPlugin::MultiMeshEditorPlugin(EditorNode *p_node) {
editor = p_node;
multimesh_editor = memnew(MultiMeshEditor);
editor->get_viewport()->add_child(multimesh_editor);
multimesh_editor->options->hide();
}
MultiMeshEditorPlugin::~MultiMeshEditorPlugin() {
}
Reference in New Issue View Git Blame Copy Permalink