virtualx-engine/editor/plugins/multimesh_editor_plugin.cpp
Rémi Verschelde a7f49ac9a1 Update copyright statements to 2020
Happy new year to the wonderful Godot community!

We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.

Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
2020-01-01 11:16:22 +01:00

418 lines
12 KiB
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/*************************************************************************/
/* multimesh_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 "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 = NULL;
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 = NULL;
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(NULL);
}
}
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() {
}