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path: root/modules/csg/editor/csg_gizmos.cpp
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diff --git a/modules/csg/editor/csg_gizmos.cpp b/modules/csg/editor/csg_gizmos.cpp
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+/*************************************************************************/
+/* csg_gizmos.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 "csg_gizmos.h"
+
+#ifdef TOOLS_ENABLED
+
+#include "editor/editor_settings.h"
+#include "editor/plugins/node_3d_editor_plugin.h"
+#include "scene/3d/camera_3d.h"
+
+///////////
+
+CSGShape3DGizmoPlugin::CSGShape3DGizmoPlugin() {
+ Color gizmo_color = EDITOR_DEF("editors/3d_gizmos/gizmo_colors/csg", Color(0.0, 0.4, 1, 0.15));
+ create_material("shape_union_material", gizmo_color);
+ create_material("shape_union_solid_material", gizmo_color);
+ gizmo_color.invert();
+ create_material("shape_subtraction_material", gizmo_color);
+ create_material("shape_subtraction_solid_material", gizmo_color);
+ gizmo_color.r = 0.95;
+ gizmo_color.g = 0.95;
+ gizmo_color.b = 0.95;
+ create_material("shape_intersection_material", gizmo_color);
+ create_material("shape_intersection_solid_material", gizmo_color);
+
+ create_handle_material("handles");
+}
+
+String CSGShape3DGizmoPlugin::get_handle_name(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary) const {
+ CSGShape3D *cs = Object::cast_to<CSGShape3D>(p_gizmo->get_spatial_node());
+
+ if (Object::cast_to<CSGSphere3D>(cs)) {
+ return "Radius";
+ }
+
+ if (Object::cast_to<CSGBox3D>(cs)) {
+ return "Size";
+ }
+
+ if (Object::cast_to<CSGCylinder3D>(cs)) {
+ return p_id == 0 ? "Radius" : "Height";
+ }
+
+ if (Object::cast_to<CSGTorus3D>(cs)) {
+ return p_id == 0 ? "InnerRadius" : "OuterRadius";
+ }
+
+ return "";
+}
+
+Variant CSGShape3DGizmoPlugin::get_handle_value(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary) const {
+ CSGShape3D *cs = Object::cast_to<CSGShape3D>(p_gizmo->get_spatial_node());
+
+ if (Object::cast_to<CSGSphere3D>(cs)) {
+ CSGSphere3D *s = Object::cast_to<CSGSphere3D>(cs);
+ return s->get_radius();
+ }
+
+ if (Object::cast_to<CSGBox3D>(cs)) {
+ CSGBox3D *s = Object::cast_to<CSGBox3D>(cs);
+ return s->get_size();
+ }
+
+ if (Object::cast_to<CSGCylinder3D>(cs)) {
+ CSGCylinder3D *s = Object::cast_to<CSGCylinder3D>(cs);
+ return p_id == 0 ? s->get_radius() : s->get_height();
+ }
+
+ if (Object::cast_to<CSGTorus3D>(cs)) {
+ CSGTorus3D *s = Object::cast_to<CSGTorus3D>(cs);
+ return p_id == 0 ? s->get_inner_radius() : s->get_outer_radius();
+ }
+
+ return Variant();
+}
+
+void CSGShape3DGizmoPlugin::set_handle(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary, Camera3D *p_camera, const Point2 &p_point) {
+ CSGShape3D *cs = Object::cast_to<CSGShape3D>(p_gizmo->get_spatial_node());
+
+ Transform3D gt = cs->get_global_transform();
+ //gt.orthonormalize();
+ Transform3D gi = gt.affine_inverse();
+
+ Vector3 ray_from = p_camera->project_ray_origin(p_point);
+ Vector3 ray_dir = p_camera->project_ray_normal(p_point);
+
+ Vector3 sg[2] = { gi.xform(ray_from), gi.xform(ray_from + ray_dir * 16384) };
+
+ if (Object::cast_to<CSGSphere3D>(cs)) {
+ CSGSphere3D *s = Object::cast_to<CSGSphere3D>(cs);
+
+ Vector3 ra, rb;
+ Geometry3D::get_closest_points_between_segments(Vector3(), Vector3(4096, 0, 0), sg[0], sg[1], ra, rb);
+ float d = ra.x;
+ if (Node3DEditor::get_singleton()->is_snap_enabled()) {
+ d = Math::snapped(d, Node3DEditor::get_singleton()->get_translate_snap());
+ }
+
+ if (d < 0.001) {
+ d = 0.001;
+ }
+
+ s->set_radius(d);
+ }
+
+ if (Object::cast_to<CSGBox3D>(cs)) {
+ CSGBox3D *s = Object::cast_to<CSGBox3D>(cs);
+
+ Vector3 axis;
+ axis[p_id] = 1.0;
+ Vector3 ra, rb;
+ Geometry3D::get_closest_points_between_segments(Vector3(), axis * 4096, sg[0], sg[1], ra, rb);
+ float d = ra[p_id];
+
+ if (Math::is_nan(d)) {
+ // The handle is perpendicular to the camera.
+ return;
+ }
+
+ if (Node3DEditor::get_singleton()->is_snap_enabled()) {
+ d = Math::snapped(d, Node3DEditor::get_singleton()->get_translate_snap());
+ }
+
+ if (d < 0.001) {
+ d = 0.001;
+ }
+
+ Vector3 h = s->get_size();
+ h[p_id] = d * 2;
+ s->set_size(h);
+ }
+
+ if (Object::cast_to<CSGCylinder3D>(cs)) {
+ CSGCylinder3D *s = Object::cast_to<CSGCylinder3D>(cs);
+
+ Vector3 axis;
+ axis[p_id == 0 ? 0 : 1] = 1.0;
+ Vector3 ra, rb;
+ Geometry3D::get_closest_points_between_segments(Vector3(), axis * 4096, sg[0], sg[1], ra, rb);
+ float d = axis.dot(ra);
+ if (Node3DEditor::get_singleton()->is_snap_enabled()) {
+ d = Math::snapped(d, Node3DEditor::get_singleton()->get_translate_snap());
+ }
+
+ if (d < 0.001) {
+ d = 0.001;
+ }
+
+ if (p_id == 0) {
+ s->set_radius(d);
+ } else if (p_id == 1) {
+ s->set_height(d * 2.0);
+ }
+ }
+
+ if (Object::cast_to<CSGTorus3D>(cs)) {
+ CSGTorus3D *s = Object::cast_to<CSGTorus3D>(cs);
+
+ Vector3 axis;
+ axis[0] = 1.0;
+ Vector3 ra, rb;
+ Geometry3D::get_closest_points_between_segments(Vector3(), axis * 4096, sg[0], sg[1], ra, rb);
+ float d = axis.dot(ra);
+ if (Node3DEditor::get_singleton()->is_snap_enabled()) {
+ d = Math::snapped(d, Node3DEditor::get_singleton()->get_translate_snap());
+ }
+
+ if (d < 0.001) {
+ d = 0.001;
+ }
+
+ if (p_id == 0) {
+ s->set_inner_radius(d);
+ } else if (p_id == 1) {
+ s->set_outer_radius(d);
+ }
+ }
+}
+
+void CSGShape3DGizmoPlugin::commit_handle(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary, const Variant &p_restore, bool p_cancel) {
+ CSGShape3D *cs = Object::cast_to<CSGShape3D>(p_gizmo->get_spatial_node());
+
+ if (Object::cast_to<CSGSphere3D>(cs)) {
+ CSGSphere3D *s = Object::cast_to<CSGSphere3D>(cs);
+ if (p_cancel) {
+ s->set_radius(p_restore);
+ return;
+ }
+
+ UndoRedo *ur = Node3DEditor::get_singleton()->get_undo_redo();
+ ur->create_action(TTR("Change Sphere Shape Radius"));
+ ur->add_do_method(s, "set_radius", s->get_radius());
+ ur->add_undo_method(s, "set_radius", p_restore);
+ ur->commit_action();
+ }
+
+ if (Object::cast_to<CSGBox3D>(cs)) {
+ CSGBox3D *s = Object::cast_to<CSGBox3D>(cs);
+ if (p_cancel) {
+ s->set_size(p_restore);
+ return;
+ }
+
+ UndoRedo *ur = Node3DEditor::get_singleton()->get_undo_redo();
+ ur->create_action(TTR("Change Box Shape Size"));
+ ur->add_do_method(s, "set_size", s->get_size());
+ ur->add_undo_method(s, "set_size", p_restore);
+ ur->commit_action();
+ }
+
+ if (Object::cast_to<CSGCylinder3D>(cs)) {
+ CSGCylinder3D *s = Object::cast_to<CSGCylinder3D>(cs);
+ if (p_cancel) {
+ if (p_id == 0) {
+ s->set_radius(p_restore);
+ } else {
+ s->set_height(p_restore);
+ }
+ return;
+ }
+
+ UndoRedo *ur = Node3DEditor::get_singleton()->get_undo_redo();
+ if (p_id == 0) {
+ ur->create_action(TTR("Change Cylinder Radius"));
+ ur->add_do_method(s, "set_radius", s->get_radius());
+ ur->add_undo_method(s, "set_radius", p_restore);
+ } else {
+ ur->create_action(TTR("Change Cylinder Height"));
+ ur->add_do_method(s, "set_height", s->get_height());
+ ur->add_undo_method(s, "set_height", p_restore);
+ }
+
+ ur->commit_action();
+ }
+
+ if (Object::cast_to<CSGTorus3D>(cs)) {
+ CSGTorus3D *s = Object::cast_to<CSGTorus3D>(cs);
+ if (p_cancel) {
+ if (p_id == 0) {
+ s->set_inner_radius(p_restore);
+ } else {
+ s->set_outer_radius(p_restore);
+ }
+ return;
+ }
+
+ UndoRedo *ur = Node3DEditor::get_singleton()->get_undo_redo();
+ if (p_id == 0) {
+ ur->create_action(TTR("Change Torus Inner Radius"));
+ ur->add_do_method(s, "set_inner_radius", s->get_inner_radius());
+ ur->add_undo_method(s, "set_inner_radius", p_restore);
+ } else {
+ ur->create_action(TTR("Change Torus Outer Radius"));
+ ur->add_do_method(s, "set_outer_radius", s->get_outer_radius());
+ ur->add_undo_method(s, "set_outer_radius", p_restore);
+ }
+
+ ur->commit_action();
+ }
+}
+
+bool CSGShape3DGizmoPlugin::has_gizmo(Node3D *p_spatial) {
+ return Object::cast_to<CSGSphere3D>(p_spatial) || Object::cast_to<CSGBox3D>(p_spatial) || Object::cast_to<CSGCylinder3D>(p_spatial) || Object::cast_to<CSGTorus3D>(p_spatial) || Object::cast_to<CSGMesh3D>(p_spatial) || Object::cast_to<CSGPolygon3D>(p_spatial);
+}
+
+String CSGShape3DGizmoPlugin::get_gizmo_name() const {
+ return "CSGShape3D";
+}
+
+int CSGShape3DGizmoPlugin::get_priority() const {
+ return -1;
+}
+
+bool CSGShape3DGizmoPlugin::is_selectable_when_hidden() const {
+ return true;
+}
+
+void CSGShape3DGizmoPlugin::redraw(EditorNode3DGizmo *p_gizmo) {
+ p_gizmo->clear();
+
+ CSGShape3D *cs = Object::cast_to<CSGShape3D>(p_gizmo->get_spatial_node());
+
+ Vector<Vector3> faces = cs->get_brush_faces();
+
+ if (faces.size() == 0) {
+ return;
+ }
+
+ Vector<Vector3> lines;
+ lines.resize(faces.size() * 2);
+ {
+ const Vector3 *r = faces.ptr();
+
+ for (int i = 0; i < lines.size(); i += 6) {
+ int f = i / 6;
+ for (int j = 0; j < 3; j++) {
+ int j_n = (j + 1) % 3;
+ lines.write[i + j * 2 + 0] = r[f * 3 + j];
+ lines.write[i + j * 2 + 1] = r[f * 3 + j_n];
+ }
+ }
+ }
+
+ Ref<Material> material;
+ switch (cs->get_operation()) {
+ case CSGShape3D::OPERATION_UNION:
+ material = get_material("shape_union_material", p_gizmo);
+ break;
+ case CSGShape3D::OPERATION_INTERSECTION:
+ material = get_material("shape_intersection_material", p_gizmo);
+ break;
+ case CSGShape3D::OPERATION_SUBTRACTION:
+ material = get_material("shape_subtraction_material", p_gizmo);
+ break;
+ }
+
+ Ref<Material> handles_material = get_material("handles");
+
+ p_gizmo->add_lines(lines, material);
+ p_gizmo->add_collision_segments(lines);
+
+ Array csg_meshes = cs->get_meshes();
+ if (csg_meshes.size() != 2) {
+ return;
+ }
+
+ Ref<Mesh> csg_mesh = csg_meshes[1];
+ if (csg_mesh.is_valid()) {
+ p_gizmo->add_collision_triangles(csg_mesh->generate_triangle_mesh());
+ }
+
+ if (p_gizmo->is_selected()) {
+ // Draw a translucent representation of the CSG node
+ Ref<ArrayMesh> mesh = memnew(ArrayMesh);
+ Array array;
+ array.resize(Mesh::ARRAY_MAX);
+ array[Mesh::ARRAY_VERTEX] = faces;
+ mesh->add_surface_from_arrays(Mesh::PRIMITIVE_TRIANGLES, array);
+
+ Ref<Material> solid_material;
+ switch (cs->get_operation()) {
+ case CSGShape3D::OPERATION_UNION:
+ solid_material = get_material("shape_union_solid_material", p_gizmo);
+ break;
+ case CSGShape3D::OPERATION_INTERSECTION:
+ solid_material = get_material("shape_intersection_solid_material", p_gizmo);
+ break;
+ case CSGShape3D::OPERATION_SUBTRACTION:
+ solid_material = get_material("shape_subtraction_solid_material", p_gizmo);
+ break;
+ }
+
+ p_gizmo->add_mesh(mesh, solid_material);
+ }
+
+ if (Object::cast_to<CSGSphere3D>(cs)) {
+ CSGSphere3D *s = Object::cast_to<CSGSphere3D>(cs);
+
+ float r = s->get_radius();
+ Vector<Vector3> handles;
+ handles.push_back(Vector3(r, 0, 0));
+ p_gizmo->add_handles(handles, handles_material);
+ }
+
+ if (Object::cast_to<CSGBox3D>(cs)) {
+ CSGBox3D *s = Object::cast_to<CSGBox3D>(cs);
+
+ Vector<Vector3> handles;
+
+ for (int i = 0; i < 3; i++) {
+ Vector3 h;
+ h[i] = s->get_size()[i] / 2;
+ handles.push_back(h);
+ }
+
+ p_gizmo->add_handles(handles, handles_material);
+ }
+
+ if (Object::cast_to<CSGCylinder3D>(cs)) {
+ CSGCylinder3D *s = Object::cast_to<CSGCylinder3D>(cs);
+
+ Vector<Vector3> handles;
+ handles.push_back(Vector3(s->get_radius(), 0, 0));
+ handles.push_back(Vector3(0, s->get_height() * 0.5, 0));
+ p_gizmo->add_handles(handles, handles_material);
+ }
+
+ if (Object::cast_to<CSGTorus3D>(cs)) {
+ CSGTorus3D *s = Object::cast_to<CSGTorus3D>(cs);
+
+ Vector<Vector3> handles;
+ handles.push_back(Vector3(s->get_inner_radius(), 0, 0));
+ handles.push_back(Vector3(s->get_outer_radius(), 0, 0));
+ p_gizmo->add_handles(handles, handles_material);
+ }
+}
+
+EditorPluginCSG::EditorPluginCSG() {
+ Ref<CSGShape3DGizmoPlugin> gizmo_plugin = Ref<CSGShape3DGizmoPlugin>(memnew(CSGShape3DGizmoPlugin));
+ Node3DEditor::get_singleton()->add_gizmo_plugin(gizmo_plugin);
+}
+
+#endif // TOOLS_ENABLED
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