115f4dce55
Add framework for supporting geometrical occluders within rooms, and add support for sphere occluders. Includes gizmos for editing. They also work outside the portal system.
216 lines
7.4 KiB
C++
216 lines
7.4 KiB
C++
/*************************************************************************/
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/* occluder_shape.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "occluder_shape.h"
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#include "core/engine.h"
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#include "core/math/transform.h"
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#include "servers/visual_server.h"
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#ifdef TOOLS_ENABLED
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#include "editor/editor_node.h"
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#endif
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void OccluderShape::_bind_methods() {
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}
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OccluderShape::OccluderShape(RID p_shape) {
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_shape = p_shape;
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}
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OccluderShape::~OccluderShape() {
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if (_shape != RID()) {
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VisualServer::get_singleton()->free(_shape);
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}
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}
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void OccluderShape::update_transform_to_visual_server(const Transform &p_global_xform) {
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VisualServer::get_singleton()->occluder_set_transform(get_shape(), p_global_xform);
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}
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void OccluderShape::update_active_to_visual_server(bool p_active) {
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VisualServer::get_singleton()->occluder_set_active(get_shape(), p_active);
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}
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void OccluderShape::notification_exit_world() {
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VisualServer::get_singleton()->occluder_set_scenario(_shape, RID(), VisualServer::OCCLUDER_TYPE_UNDEFINED);
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}
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//////////////////////////////////////////////
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void OccluderShapeSphere::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_spheres", "spheres"), &OccluderShapeSphere::set_spheres);
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ClassDB::bind_method(D_METHOD("get_spheres"), &OccluderShapeSphere::get_spheres);
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ClassDB::bind_method(D_METHOD("set_sphere_position", "index", "position"), &OccluderShapeSphere::set_sphere_position);
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ClassDB::bind_method(D_METHOD("set_sphere_radius", "index", "radius"), &OccluderShapeSphere::set_sphere_radius);
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ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "spheres", PROPERTY_HINT_NONE, itos(Variant::PLANE) + ":"), "set_spheres", "get_spheres");
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}
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void OccluderShapeSphere::update_shape_to_visual_server() {
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VisualServer::get_singleton()->occluder_spheres_update(get_shape(), _spheres);
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}
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Transform OccluderShapeSphere::center_node(const Transform &p_global_xform, const Transform &p_parent_xform, real_t p_snap) {
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if (!_spheres.size()) {
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return Transform();
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}
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// make sure world spheres correct
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Vector<Plane> spheres_world_space;
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if (spheres_world_space.size() != _spheres.size()) {
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spheres_world_space.resize(_spheres.size());
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}
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Vector3 scale3 = p_global_xform.basis.get_scale_abs();
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real_t scale = (scale3.x + scale3.y + scale3.z) / 3.0;
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for (int n = 0; n < _spheres.size(); n++) {
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Plane p;
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p.normal = p_global_xform.xform(_spheres[n].normal);
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p.d = _spheres[n].d * scale;
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spheres_world_space.set(n, p);
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}
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// first find the center
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AABB bb;
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bb.set_position(spheres_world_space[0].normal);
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// new positions
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for (int n = 0; n < spheres_world_space.size(); n++) {
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const Plane &sphere = spheres_world_space[n];
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// update aabb
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AABB sphere_bb(sphere.normal, Vector3());
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sphere_bb.grow_by(sphere.d);
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bb.merge_with(sphere_bb);
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}
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Vector3 center = bb.get_center();
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// snapping
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if (p_snap > 0.0001) {
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center.snap(Vector3(p_snap, p_snap, p_snap));
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}
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// new transform with no rotate or scale, centered
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Transform new_local_xform = Transform();
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new_local_xform.translate(center.x, center.y, center.z);
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Transform inv_xform = new_local_xform.affine_inverse();
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// back calculate the new spheres
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for (int n = 0; n < spheres_world_space.size(); n++) {
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Plane p = spheres_world_space[n];
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p.normal = inv_xform.xform(p.normal);
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// assuming uniform scale, otherwise this will go wrong
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Vector3 inv_scale = inv_xform.basis.get_scale_abs();
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p.d *= inv_scale.x;
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spheres_world_space.set(n, p);
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}
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#ifdef TOOLS_ENABLED
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if (Engine::get_singleton()->is_editor_hint()) {
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UndoRedo *undo_redo = EditorNode::get_undo_redo();
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undo_redo->create_action(TTR("OccluderShapeSphere Set Spheres"));
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undo_redo->add_do_method(this, "set_spheres", spheres_world_space);
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undo_redo->add_undo_method(this, "set_spheres", _spheres);
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undo_redo->commit_action();
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} else {
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set_spheres(spheres_world_space);
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}
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#else
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set_spheres(spheres_world_space);
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#endif
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notify_change_to_owners();
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return new_local_xform;
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}
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void OccluderShapeSphere::notification_enter_world(RID p_scenario) {
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VisualServer::get_singleton()->occluder_set_scenario(get_shape(), p_scenario, VisualServer::OCCLUDER_TYPE_SPHERE);
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}
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void OccluderShapeSphere::set_spheres(const Vector<Plane> &p_spheres) {
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#ifdef TOOLS_ENABLED
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// try and detect special circumstance of adding a new sphere in the editor
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bool adding_in_editor = false;
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if ((p_spheres.size() == _spheres.size() + 1) && (p_spheres[p_spheres.size() - 1] == Plane())) {
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adding_in_editor = true;
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}
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#endif
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_spheres = p_spheres;
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// sanitize radii
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for (int n = 0; n < _spheres.size(); n++) {
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if (_spheres[n].d < _min_radius) {
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Plane p = _spheres[n];
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p.d = _min_radius;
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_spheres.set(n, p);
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}
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}
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#ifdef TOOLS_ENABLED
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if (adding_in_editor) {
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_spheres.set(_spheres.size() - 1, Plane(Vector3(), 1.0));
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}
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#endif
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notify_change_to_owners();
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}
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void OccluderShapeSphere::set_sphere_position(int p_idx, const Vector3 &p_position) {
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if ((p_idx >= 0) && (p_idx < _spheres.size())) {
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Plane p = _spheres[p_idx];
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p.normal = p_position;
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_spheres.set(p_idx, p);
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notify_change_to_owners();
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}
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}
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void OccluderShapeSphere::set_sphere_radius(int p_idx, real_t p_radius) {
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if ((p_idx >= 0) && (p_idx < _spheres.size())) {
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Plane p = _spheres[p_idx];
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p.d = MAX(p_radius, _min_radius);
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_spheres.set(p_idx, p);
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notify_change_to_owners();
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}
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}
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OccluderShapeSphere::OccluderShapeSphere() :
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OccluderShape(VisualServer::get_singleton()->occluder_create()) {
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}
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