godot/scene/resources/occluder_shape.cpp
Rémi Verschelde a627cdafc5
Update copyright statements to 2022
Happy new year to the wonderful Godot community!
2022-01-13 15:54:13 +01:00

217 lines
7.4 KiB
C++

/*************************************************************************/
/* occluder_shape.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 "occluder_shape.h"
#include "core/engine.h"
#include "core/math/transform.h"
#include "servers/visual_server.h"
#ifdef TOOLS_ENABLED
#include "editor/editor_node.h"
#endif
void OccluderShape::_bind_methods() {
}
OccluderShape::OccluderShape(RID p_shape) {
_shape = p_shape;
}
OccluderShape::~OccluderShape() {
if (_shape != RID()) {
VisualServer::get_singleton()->free(_shape);
}
}
void OccluderShape::update_transform_to_visual_server(const Transform &p_global_xform) {
VisualServer::get_singleton()->occluder_set_transform(get_shape(), p_global_xform);
}
void OccluderShape::update_active_to_visual_server(bool p_active) {
VisualServer::get_singleton()->occluder_set_active(get_shape(), p_active);
}
void OccluderShape::notification_exit_world() {
VisualServer::get_singleton()->occluder_set_scenario(_shape, RID(), VisualServer::OCCLUDER_TYPE_UNDEFINED);
}
//////////////////////////////////////////////
void OccluderShapeSphere::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_spheres", "spheres"), &OccluderShapeSphere::set_spheres);
ClassDB::bind_method(D_METHOD("get_spheres"), &OccluderShapeSphere::get_spheres);
ClassDB::bind_method(D_METHOD("set_sphere_position", "index", "position"), &OccluderShapeSphere::set_sphere_position);
ClassDB::bind_method(D_METHOD("set_sphere_radius", "index", "radius"), &OccluderShapeSphere::set_sphere_radius);
ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "spheres", PROPERTY_HINT_NONE, itos(Variant::PLANE) + ":"), "set_spheres", "get_spheres");
}
void OccluderShapeSphere::update_shape_to_visual_server() {
VisualServer::get_singleton()->occluder_spheres_update(get_shape(), _spheres);
}
Transform OccluderShapeSphere::center_node(const Transform &p_global_xform, const Transform &p_parent_xform, real_t p_snap) {
if (!_spheres.size()) {
return Transform();
}
// make sure world spheres correct
Vector<Plane> spheres_world_space;
if (spheres_world_space.size() != _spheres.size()) {
spheres_world_space.resize(_spheres.size());
}
Vector3 scale3 = p_global_xform.basis.get_scale_abs();
real_t scale = (scale3.x + scale3.y + scale3.z) / 3.0;
for (int n = 0; n < _spheres.size(); n++) {
Plane p;
p.normal = p_global_xform.xform(_spheres[n].normal);
p.d = _spheres[n].d * scale;
spheres_world_space.set(n, p);
}
// first find the center
AABB bb;
bb.set_position(spheres_world_space[0].normal);
// new positions
for (int n = 0; n < spheres_world_space.size(); n++) {
const Plane &sphere = spheres_world_space[n];
// update aabb
AABB sphere_bb(sphere.normal, Vector3());
sphere_bb.grow_by(sphere.d);
bb.merge_with(sphere_bb);
}
Vector3 center = bb.get_center();
// snapping
if (p_snap > 0.0001) {
center.snap(Vector3(p_snap, p_snap, p_snap));
}
// new transform with no rotate or scale, centered
Transform new_local_xform = Transform();
new_local_xform.translate(center.x, center.y, center.z);
Transform inv_xform = new_local_xform.affine_inverse();
// back calculate the new spheres
for (int n = 0; n < spheres_world_space.size(); n++) {
Plane p = spheres_world_space[n];
p.normal = inv_xform.xform(p.normal);
// assuming uniform scale, otherwise this will go wrong
Vector3 inv_scale = inv_xform.basis.get_scale_abs();
p.d *= inv_scale.x;
spheres_world_space.set(n, p);
}
#ifdef TOOLS_ENABLED
if (Engine::get_singleton()->is_editor_hint()) {
UndoRedo *undo_redo = EditorNode::get_undo_redo();
undo_redo->create_action(TTR("OccluderShapeSphere Set Spheres"));
undo_redo->add_do_method(this, "set_spheres", spheres_world_space);
undo_redo->add_undo_method(this, "set_spheres", _spheres);
undo_redo->commit_action();
} else {
set_spheres(spheres_world_space);
}
#else
set_spheres(spheres_world_space);
#endif
notify_change_to_owners();
return new_local_xform;
}
void OccluderShapeSphere::notification_enter_world(RID p_scenario) {
VisualServer::get_singleton()->occluder_set_scenario(get_shape(), p_scenario, VisualServer::OCCLUDER_TYPE_SPHERE);
}
void OccluderShapeSphere::set_spheres(const Vector<Plane> &p_spheres) {
#ifdef TOOLS_ENABLED
// try and detect special circumstance of adding a new sphere in the editor
bool adding_in_editor = false;
if ((p_spheres.size() == _spheres.size() + 1) && (p_spheres[p_spheres.size() - 1] == Plane())) {
adding_in_editor = true;
}
#endif
_spheres = p_spheres;
// sanitize radii
for (int n = 0; n < _spheres.size(); n++) {
if (_spheres[n].d < _min_radius) {
Plane p = _spheres[n];
p.d = _min_radius;
_spheres.set(n, p);
}
}
#ifdef TOOLS_ENABLED
if (adding_in_editor) {
_spheres.set(_spheres.size() - 1, Plane(Vector3(), 1.0));
}
#endif
notify_change_to_owners();
}
void OccluderShapeSphere::set_sphere_position(int p_idx, const Vector3 &p_position) {
if ((p_idx >= 0) && (p_idx < _spheres.size())) {
Plane p = _spheres[p_idx];
p.normal = p_position;
_spheres.set(p_idx, p);
notify_change_to_owners();
}
}
void OccluderShapeSphere::set_sphere_radius(int p_idx, real_t p_radius) {
if ((p_idx >= 0) && (p_idx < _spheres.size())) {
Plane p = _spheres[p_idx];
p.d = MAX(p_radius, _min_radius);
_spheres.set(p_idx, p);
notify_change_to_owners();
}
}
OccluderShapeSphere::OccluderShapeSphere() :
OccluderShape(RID_PRIME(VisualServer::get_singleton()->occluder_create())) {
}