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/**************************************************************************/
/* collision_shape_3d_gizmo_plugin.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 "collision_shape_3d_gizmo_plugin.h"
#include "core/math/convex_hull.h"
#include "core/math/geometry_3d.h"
#include "editor/editor_settings.h"
#include "editor/editor_undo_redo_manager.h"
#include "editor/plugins/gizmos/gizmo_3d_helper.h"
#include "editor/plugins/node_3d_editor_plugin.h"
#include "scene/3d/collision_shape_3d.h"
#include "scene/resources/box_shape_3d.h"
#include "scene/resources/capsule_shape_3d.h"
#include "scene/resources/concave_polygon_shape_3d.h"
#include "scene/resources/convex_polygon_shape_3d.h"
#include "scene/resources/cylinder_shape_3d.h"
#include "scene/resources/height_map_shape_3d.h"
#include "scene/resources/separation_ray_shape_3d.h"
#include "scene/resources/sphere_shape_3d.h"
#include "scene/resources/world_boundary_shape_3d.h"
CollisionShape3DGizmoPlugin::CollisionShape3DGizmoPlugin() {
helper.instantiate();
const Color gizmo_color = EDITOR_GET("editors/3d_gizmos/gizmo_colors/shape");
create_material("shape_material", gizmo_color);
const float gizmo_value = gizmo_color.get_v();
const Color gizmo_color_disabled = Color(gizmo_value, gizmo_value, gizmo_value, 0.65);
create_material("shape_material_disabled", gizmo_color_disabled);
create_handle_material("handles");
}
CollisionShape3DGizmoPlugin::~CollisionShape3DGizmoPlugin() {
}
bool CollisionShape3DGizmoPlugin::has_gizmo(Node3D *p_spatial) {
return Object::cast_to<CollisionShape3D>(p_spatial) != nullptr;
}
String CollisionShape3DGizmoPlugin::get_gizmo_name() const {
return "CollisionShape3D";
}
int CollisionShape3DGizmoPlugin::get_priority() const {
return -1;
}
String CollisionShape3DGizmoPlugin::get_handle_name(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary) const {
const CollisionShape3D *cs = Object::cast_to<CollisionShape3D>(p_gizmo->get_node_3d());
Ref<Shape3D> s = cs->get_shape();
if (s.is_null()) {
return "";
}
if (Object::cast_to<SphereShape3D>(*s)) {
return "Radius";
}
if (Object::cast_to<BoxShape3D>(*s)) {
return helper->box_get_handle_name(p_id);
}
if (Object::cast_to<CapsuleShape3D>(*s)) {
return p_id == 0 ? "Radius" : "Height";
}
if (Object::cast_to<CylinderShape3D>(*s)) {
return p_id == 0 ? "Radius" : "Height";
}
if (Object::cast_to<SeparationRayShape3D>(*s)) {
return "Length";
}
return "";
}
Variant CollisionShape3DGizmoPlugin::get_handle_value(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary) const {
CollisionShape3D *cs = Object::cast_to<CollisionShape3D>(p_gizmo->get_node_3d());
Ref<Shape3D> s = cs->get_shape();
if (s.is_null()) {
return Variant();
}
if (Object::cast_to<SphereShape3D>(*s)) {
Ref<SphereShape3D> ss = s;
return ss->get_radius();
}
if (Object::cast_to<BoxShape3D>(*s)) {
Ref<BoxShape3D> bs = s;
return bs->get_size();
}
if (Object::cast_to<CapsuleShape3D>(*s)) {
Ref<CapsuleShape3D> cs2 = s;
return Vector2(cs2->get_radius(), cs2->get_height());
}
if (Object::cast_to<CylinderShape3D>(*s)) {
Ref<CylinderShape3D> cs2 = s;
return p_id == 0 ? cs2->get_radius() : cs2->get_height();
}
if (Object::cast_to<SeparationRayShape3D>(*s)) {
Ref<SeparationRayShape3D> cs2 = s;
return cs2->get_length();
}
return Variant();
}
void CollisionShape3DGizmoPlugin::begin_handle_action(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary) {
helper->initialize_handle_action(get_handle_value(p_gizmo, p_id, p_secondary), p_gizmo->get_node_3d()->get_global_transform());
}
void CollisionShape3DGizmoPlugin::set_handle(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary, Camera3D *p_camera, const Point2 &p_point) {
CollisionShape3D *cs = Object::cast_to<CollisionShape3D>(p_gizmo->get_node_3d());
Ref<Shape3D> s = cs->get_shape();
if (s.is_null()) {
return;
}
Vector3 sg[2];
helper->get_segment(p_camera, p_point, sg);
if (Object::cast_to<SphereShape3D>(*s)) {
Ref<SphereShape3D> ss = s;
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;
}
ss->set_radius(d);
}
if (Object::cast_to<SeparationRayShape3D>(*s)) {
Ref<SeparationRayShape3D> rs = s;
Vector3 ra, rb;
Geometry3D::get_closest_points_between_segments(Vector3(), Vector3(0, 0, 4096), sg[0], sg[1], ra, rb);
float d = ra.z;
if (Node3DEditor::get_singleton()->is_snap_enabled()) {
d = Math::snapped(d, Node3DEditor::get_singleton()->get_translate_snap());
}
if (d < 0.001) {
d = 0.001;
}
rs->set_length(d);
}
if (Object::cast_to<BoxShape3D>(*s)) {
Ref<BoxShape3D> bs = s;
Vector3 size = bs->get_size();
Vector3 position;
helper->box_set_handle(sg, p_id, size, position);
bs->set_size(size);
cs->set_global_position(position);
}
if (Object::cast_to<CapsuleShape3D>(*s)) {
Vector3 axis;
axis[p_id == 0 ? 0 : 1] = 1.0;
Ref<CapsuleShape3D> cs2 = s;
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) {
cs2->set_radius(d);
} else if (p_id == 1) {
cs2->set_height(d * 2.0);
}
}
if (Object::cast_to<CylinderShape3D>(*s)) {
Vector3 axis;
axis[p_id == 0 ? 0 : 1] = 1.0;
Ref<CylinderShape3D> cs2 = s;
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) {
cs2->set_radius(d);
} else if (p_id == 1) {
cs2->set_height(d * 2.0);
}
}
}
void CollisionShape3DGizmoPlugin::commit_handle(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary, const Variant &p_restore, bool p_cancel) {
CollisionShape3D *cs = Object::cast_to<CollisionShape3D>(p_gizmo->get_node_3d());
Ref<Shape3D> s = cs->get_shape();
if (s.is_null()) {
return;
}
if (Object::cast_to<SphereShape3D>(*s)) {
Ref<SphereShape3D> ss = s;
if (p_cancel) {
ss->set_radius(p_restore);
return;
}
EditorUndoRedoManager *ur = EditorUndoRedoManager::get_singleton();
ur->create_action(TTR("Change Sphere Shape Radius"));
ur->add_do_method(ss.ptr(), "set_radius", ss->get_radius());
ur->add_undo_method(ss.ptr(), "set_radius", p_restore);
ur->commit_action();
}
if (Object::cast_to<BoxShape3D>(*s)) {
helper->box_commit_handle(TTR("Change Box Shape Size"), p_cancel, cs, s.ptr());
}
if (Object::cast_to<CapsuleShape3D>(*s)) {
Ref<CapsuleShape3D> ss = s;
Vector2 values = p_restore;
if (p_cancel) {
ss->set_radius(values[0]);
ss->set_height(values[1]);
return;
}
EditorUndoRedoManager *ur = EditorUndoRedoManager::get_singleton();
if (p_id == 0) {
ur->create_action(TTR("Change Capsule Shape Radius"));
ur->add_do_method(ss.ptr(), "set_radius", ss->get_radius());
} else {
ur->create_action(TTR("Change Capsule Shape Height"));
ur->add_do_method(ss.ptr(), "set_height", ss->get_height());
}
ur->add_undo_method(ss.ptr(), "set_radius", values[0]);
ur->add_undo_method(ss.ptr(), "set_height", values[1]);
ur->commit_action();
}
if (Object::cast_to<CylinderShape3D>(*s)) {
Ref<CylinderShape3D> ss = s;
if (p_cancel) {
if (p_id == 0) {
ss->set_radius(p_restore);
} else {
ss->set_height(p_restore);
}
return;
}
EditorUndoRedoManager *ur = EditorUndoRedoManager::get_singleton();
if (p_id == 0) {
ur->create_action(TTR("Change Cylinder Shape Radius"));
ur->add_do_method(ss.ptr(), "set_radius", ss->get_radius());
ur->add_undo_method(ss.ptr(), "set_radius", p_restore);
} else {
ur->create_action(
///
////////
TTR("Change Cylinder Shape Height"));
ur->add_do_method(ss.ptr(), "set_height", ss->get_height());
ur->add_undo_method(ss.ptr(), "set_height", p_restore);
}
ur->commit_action();
}
if (Object::cast_to<SeparationRayShape3D>(*s)) {
Ref<SeparationRayShape3D> ss = s;
if (p_cancel) {
ss->set_length(p_restore);
return;
}
EditorUndoRedoManager *ur = EditorUndoRedoManager::get_singleton();
ur->create_action(TTR("Change Separation Ray Shape Length"));
ur->add_do_method(ss.ptr(), "set_length", ss->get_length());
ur->add_undo_method(ss.ptr(), "set_length", p_restore);
ur->commit_action();
}
}
void CollisionShape3DGizmoPlugin::redraw(EditorNode3DGizmo *p_gizmo) {
CollisionShape3D *cs = Object::cast_to<CollisionShape3D>(p_gizmo->get_node_3d());
p_gizmo->clear();
Ref<Shape3D> s = cs->get_shape();
if (s.is_null()) {
return;
}
const Ref<Material> material =
get_material(!cs->is_disabled() ? "shape_material" : "shape_material_disabled", p_gizmo);
Ref<Material> handles_material = get_material("handles");
if (Object::cast_to<SphereShape3D>(*s)) {
Ref<SphereShape3D> sp = s;
float r = sp->get_radius();
Vector<Vector3> points;
for (int i = 0; i <= 360; i++) {
float ra = Math::deg_to_rad((float)i);
float rb = Math::deg_to_rad((float)i + 1);
Point2 a = Vector2(Math::sin(ra), Math::cos(ra)) * r;
Point2 b = Vector2(Math::sin(rb), Math::cos(rb)) * r;
points.push_back(Vector3(a.x, 0, a.y));
points.push_back(Vector3(b.x, 0, b.y));
points.push_back(Vector3(0, a.x, a.y));
points.push_back(Vector3(0, b.x, b.y));
points.push_back(Vector3(a.x, a.y, 0));
points.push_back(Vector3(b.x, b.y, 0));
}
Vector<Vector3> collision_segments;
for (int i = 0; i < 64; i++) {
float ra = i * (Math_TAU / 64.0);
float rb = (i + 1) * (Math_TAU / 64.0);
Point2 a = Vector2(Math::sin(ra), Math::cos(ra)) * r;
Point2 b = Vector2(Math::sin(rb), Math::cos(rb)) * r;
collision_segments.push_back(Vector3(a.x, 0, a.y));
collision_segments.push_back(Vector3(b.x, 0, b.y));
collision_segments.push_back(Vector3(0, a.x, a.y));
collision_segments.push_back(Vector3(0, b.x, b.y));
collision_segments.push_back(Vector3(a.x, a.y, 0));
collision_segments.push_back(Vector3(b.x, b.y, 0));
}
p_gizmo->add_lines(points, material);
p_gizmo->add_collision_segments(collision_segments);
Vector<Vector3> handles;
handles.push_back(Vector3(r, 0, 0));
p_gizmo->add_handles(handles, handles_material);
}
if (Object::cast_to<BoxShape3D>(*s)) {
Ref<BoxShape3D> bs = s;
Vector<Vector3> lines;
AABB aabb;
aabb.position = -bs->get_size() / 2;
aabb.size = bs->get_size();
for (int i = 0; i < 12; i++) {
Vector3 a, b;
aabb.get_edge(i, a, b);
lines.push_back(a);
lines.push_back(b);
}
const Vector<Vector3> handles = helper->box_get_handles(bs->get_size());
p_gizmo->add_lines(lines, material);
p_gizmo->add_collision_segments(lines);
p_gizmo->add_handles(handles, handles_material);
}
if (Object::cast_to<CapsuleShape3D>(*s)) {
Ref<CapsuleShape3D> cs2 = s;
float radius = cs2->get_radius();
float height = cs2->get_height();
Vector<Vector3> points;
Vector3 d(0, height * 0.5 - radius, 0);
for (int i = 0; i < 360; i++) {
float ra = Math::deg_to_rad((float)i);
float rb = Math::deg_to_rad((float)i + 1);
Point2 a = Vector2(Math::sin(ra), Math::cos(ra)) * radius;
Point2 b = Vector2(Math::sin(rb), Math::cos(rb)) * radius;
points.push_back(Vector3(a.x, 0, a.y) + d);
points.push_back(Vector3(b.x, 0, b.y) + d);
points.push_back(Vector3(a.x, 0, a.y) - d);
points.push_back(Vector3(b.x, 0, b.y) - d);
if (i % 90 == 0) {
points.push_back(Vector3(a.x, 0, a.y) + d);
points.push_back(Vector3(a.x, 0, a.y) - d);
}
Vector3 dud = i < 180 ? d : -d;
points.push_back(Vector3(0, a.x, a.y) + dud);
points.push_back(Vector3(0, b.x, b.y) + dud);
points.push_back(Vector3(a.y, a.x, 0) + dud);
points.push_back(Vector3(b.y, b.x, 0) + dud);
}
p_gizmo->add_lines(points, material);
Vector<Vector3> collision_segments;
for (int i = 0; i < 64; i++) {
float ra = i * (Math_TAU / 64.0);
float rb = (i + 1) * (Math_TAU / 64.0);
Point2 a = Vector2(Math::sin(ra), Math::cos(ra)) * radius;
Point2 b = Vector2(Math::sin(rb), Math::cos(rb)) * radius;
collision_segments.push_back(Vector3(a.x, 0, a.y) + d);
collision_segments.push_back(Vector3(b.x, 0, b.y) + d);
collision_segments.push_back(Vector3(a.x, 0, a.y) - d);
collision_segments.push_back(Vector3(b.x, 0, b.y) - d);
if (i % 16 == 0) {
collision_segments.push_back(Vector3(a.x, 0, a.y) + d);
collision_segments.push_back(Vector3(a.x, 0, a.y) - d);
}
Vector3 dud = i < 32 ? d : -d;
collision_segments.push_back(Vector3(0, a.x, a.y) + dud);
collision_segments.push_back(Vector3(0, b.x, b.y) + dud);
collision_segments.push_back(Vector3(a.y, a.x, 0) + dud);
collision_segments.push_back(Vector3(b.y, b.x, 0) + dud);
}
p_gizmo->add_collision_segments(collision_segments);
Vector<Vector3> handles = {
Vector3(cs2->get_radius(), 0, 0),
Vector3(0, cs2->get_height() * 0.5, 0)
};
p_gizmo->add_handles(handles, handles_material);
}
if (Object::cast_to<CylinderShape3D>(*s)) {
Ref<CylinderShape3D> cs2 = s;
float radius = cs2->get_radius();
float height = cs2->get_height();
Vector<Vector3> points;
Vector3 d(0, height * 0.5, 0);
for (int i = 0; i < 360; i++) {
float ra = Math::deg_to_rad((float)i);
float rb = Math::deg_to_rad((float)i + 1);
Point2 a = Vector2(Math::sin(ra), Math::cos(ra)) * radius;
Point2 b = Vector2(Math::sin(rb), Math::cos(rb)) * radius;
points.push_back(Vector3(a.x, 0, a.y) + d);
points.push_back(Vector3(b.x, 0, b.y) + d);
points.push_back(Vector3(a.x, 0, a.y) - d);
points.push_back(Vector3(b.x, 0, b.y) - d);
if (i % 90 == 0) {
points.push_back(Vector3(a.x, 0, a.y) + d);
points.push_back(Vector3(a.x, 0, a.y) - d);
}
}
p_gizmo->add_lines(points, material);
Vector<Vector3> collision_segments;
for (int i = 0; i < 64; i++) {
float ra = i * (Math_TAU / 64.0);
float rb = (i + 1) * (Math_TAU / 64.0);
Point2 a = Vector2(Math::sin(ra), Math::cos(ra)) * radius;
Point2 b = Vector2(Math::sin(rb), Math::cos(rb)) * radius;
collision_segments.push_back(Vector3(a.x, 0, a.y) + d);
collision_segments.push_back(Vector3(b.x, 0, b.y) + d);
collision_segments.push_back(Vector3(a.x, 0, a.y) - d);
collision_segments.push_back(Vector3(b.x, 0, b.y) - d);
if (i % 16 == 0) {
collision_segments.push_back(Vector3(a.x, 0, a.y) + d);
collision_segments.push_back(Vector3(a.x, 0, a.y) - d);
}
}
p_gizmo->add_collision_segments(collision_segments);
Vector<Vector3> handles = {
Vector3(cs2->get_radius(), 0, 0),
Vector3(0, cs2->get_height() * 0.5, 0)
};
p_gizmo->add_handles(handles, handles_material);
}
if (Object::cast_to<WorldBoundaryShape3D>(*s)) {
Ref<WorldBoundaryShape3D> wbs = s;
const Plane &p = wbs->get_plane();
Vector3 n1 = p.get_any_perpendicular_normal();
Vector3 n2 = p.normal.cross(n1).normalized();
Vector3 pface[4] = {
p.normal * p.d + n1 * 10.0 + n2 * 10.0,
p.normal * p.d + n1 * 10.0 + n2 * -10.0,
p.normal * p.d + n1 * -10.0 + n2 * -10.0,
p.normal * p.d + n1 * -10.0 + n2 * 10.0,
};
Vector<Vector3> points = {
pface[0],
pface[1],
pface[1],
pface[2],
pface[2],
pface[3],
pface[3],
pface[0],
p.normal * p.d,
p.normal * p.d + p.normal * 3
};
p_gizmo->add_lines(points, material);
p_gizmo->add_collision_segments(points);
}
if (Object::cast_to<ConvexPolygonShape3D>(*s)) {
Vector<Vector3> points = Object::cast_to<ConvexPolygonShape3D>(*s)->get_points();
if (points.size() > 3) {
Vector<Vector3> varr = Variant(points);
Geometry3D::MeshData md;
Error err = ConvexHullComputer::convex_hull(varr, md);
if (err == OK) {
Vector<Vector3> points2;
points2.resize(md.edges.size() * 2);
for (uint32_t i = 0; i < md.edges.size(); i++) {
points2.write[i * 2 + 0] = md.vertices[md.edges[i].vertex_a];
points2.write[i * 2 + 1] = md.vertices[md.edges[i].vertex_b];
}
p_gizmo->add_lines(points2, material);
p_gizmo->add_collision_segments(points2);
}
}
}
if (Object::cast_to<ConcavePolygonShape3D>(*s)) {
Ref<ConcavePolygonShape3D> cs2 = s;
Ref<ArrayMesh> mesh = cs2->get_debug_mesh();
p_gizmo->add_mesh(mesh, material);
p_gizmo->add_collision_segments(cs2->get_debug_mesh_lines());
}
if (Object::cast_to<SeparationRayShape3D>(*s)) {
Ref<SeparationRayShape3D> rs = s;
Vector<Vector3> points = {
Vector3(),
Vector3(0, 0, rs->get_length())
};
p_gizmo->add_lines(points, material);
p_gizmo->add_collision_segments(points);
Vector<Vector3> handles;
handles.push_back(Vector3(0, 0, rs->get_length()));
p_gizmo->add_handles(handles, handles_material);
}
if (Object::cast_to<HeightMapShape3D>(*s)) {
Ref<HeightMapShape3D> hms = s;
Ref<ArrayMesh> mesh = hms->get_debug_mesh();
p_gizmo->add_mesh(mesh, material);
}
}
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