1/**************************************************************************/
2/* gpu_particles_collision_3d_gizmo_plugin.cpp */
3/**************************************************************************/
4/* This file is part of: */
5/* GODOT ENGINE */
6/* https://godotengine.org */
7/**************************************************************************/
8/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
9/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
10/* */
11/* Permission is hereby granted, free of charge, to any person obtaining */
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13/* "Software"), to deal in the Software without restriction, including */
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17/* the following conditions: */
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20/* included in all copies or substantial portions of the Software. */
21/* */
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28/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
29/**************************************************************************/
30
31#include "gpu_particles_collision_3d_gizmo_plugin.h"
32
33#include "editor/editor_settings.h"
34#include "editor/editor_undo_redo_manager.h"
35#include "editor/plugins/gizmos/gizmo_3d_helper.h"
36#include "editor/plugins/node_3d_editor_plugin.h"
37#include "scene/3d/gpu_particles_collision_3d.h"
38
39GPUParticlesCollision3DGizmoPlugin::GPUParticlesCollision3DGizmoPlugin() {
40 helper.instantiate();
41
42 Color gizmo_color_attractor = EDITOR_DEF("editors/3d_gizmos/gizmo_colors/particle_attractor", Color(1, 0.7, 0.5));
43 create_material("shape_material_attractor", gizmo_color_attractor);
44 gizmo_color_attractor.a = 0.15;
45 create_material("shape_material_attractor_internal", gizmo_color_attractor);
46
47 Color gizmo_color_collision = EDITOR_DEF("editors/3d_gizmos/gizmo_colors/particle_collision", Color(0.5, 0.7, 1));
48 create_material("shape_material_collision", gizmo_color_collision);
49 gizmo_color_collision.a = 0.15;
50 create_material("shape_material_collision_internal", gizmo_color_collision);
51
52 create_handle_material("handles");
53}
54
55GPUParticlesCollision3DGizmoPlugin::~GPUParticlesCollision3DGizmoPlugin() {
56}
57
58bool GPUParticlesCollision3DGizmoPlugin::has_gizmo(Node3D *p_spatial) {
59 return (Object::cast_to<GPUParticlesCollision3D>(p_spatial) != nullptr) || (Object::cast_to<GPUParticlesAttractor3D>(p_spatial) != nullptr);
60}
61
62String GPUParticlesCollision3DGizmoPlugin::get_gizmo_name() const {
63 return "GPUParticlesCollision3D";
64}
65
66int GPUParticlesCollision3DGizmoPlugin::get_priority() const {
67 return -1;
68}
69
70String GPUParticlesCollision3DGizmoPlugin::get_handle_name(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary) const {
71 const Node3D *cs = p_gizmo->get_node_3d();
72
73 if (Object::cast_to<GPUParticlesCollisionSphere3D>(cs) || Object::cast_to<GPUParticlesAttractorSphere3D>(cs)) {
74 return "Radius";
75 }
76
77 if (Object::cast_to<GPUParticlesCollisionBox3D>(cs) || Object::cast_to<GPUParticlesAttractorBox3D>(cs) || Object::cast_to<GPUParticlesAttractorVectorField3D>(cs) || Object::cast_to<GPUParticlesCollisionSDF3D>(cs) || Object::cast_to<GPUParticlesCollisionHeightField3D>(cs)) {
78 return helper->box_get_handle_name(p_id);
79 }
80
81 return "";
82}
83
84Variant GPUParticlesCollision3DGizmoPlugin::get_handle_value(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary) const {
85 const Node3D *cs = p_gizmo->get_node_3d();
86
87 if (Object::cast_to<GPUParticlesCollisionSphere3D>(cs) || Object::cast_to<GPUParticlesAttractorSphere3D>(cs)) {
88 return p_gizmo->get_node_3d()->call("get_radius");
89 }
90
91 if (Object::cast_to<GPUParticlesCollisionBox3D>(cs) || Object::cast_to<GPUParticlesAttractorBox3D>(cs) || Object::cast_to<GPUParticlesAttractorVectorField3D>(cs) || Object::cast_to<GPUParticlesCollisionSDF3D>(cs) || Object::cast_to<GPUParticlesCollisionHeightField3D>(cs)) {
92 return Vector3(p_gizmo->get_node_3d()->call("get_size"));
93 }
94
95 return Variant();
96}
97
98void GPUParticlesCollision3DGizmoPlugin::begin_handle_action(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary) {
99 helper->initialize_handle_action(get_handle_value(p_gizmo, p_id, p_secondary), p_gizmo->get_node_3d()->get_global_transform());
100}
101
102void GPUParticlesCollision3DGizmoPlugin::set_handle(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary, Camera3D *p_camera, const Point2 &p_point) {
103 Node3D *sn = p_gizmo->get_node_3d();
104
105 Vector3 sg[2];
106 helper->get_segment(p_camera, p_point, sg);
107
108 if (Object::cast_to<GPUParticlesCollisionSphere3D>(sn) || Object::cast_to<GPUParticlesAttractorSphere3D>(sn)) {
109 Vector3 ra, rb;
110 Geometry3D::get_closest_points_between_segments(Vector3(), Vector3(4096, 0, 0), sg[0], sg[1], ra, rb);
111 float d = ra.x;
112 if (Node3DEditor::get_singleton()->is_snap_enabled()) {
113 d = Math::snapped(d, Node3DEditor::get_singleton()->get_translate_snap());
114 }
115
116 if (d < 0.001) {
117 d = 0.001;
118 }
119
120 sn->call("set_radius", d);
121 }
122
123 if (Object::cast_to<GPUParticlesCollisionBox3D>(sn) || Object::cast_to<GPUParticlesAttractorBox3D>(sn) || Object::cast_to<GPUParticlesAttractorVectorField3D>(sn) || Object::cast_to<GPUParticlesCollisionSDF3D>(sn) || Object::cast_to<GPUParticlesCollisionHeightField3D>(sn)) {
124 Vector3 size = sn->call("get_size");
125 Vector3 position;
126 helper->box_set_handle(sg, p_id, size, position);
127 sn->call("set_size", size);
128 sn->set_global_position(position);
129 }
130}
131
132void GPUParticlesCollision3DGizmoPlugin::commit_handle(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary, const Variant &p_restore, bool p_cancel) {
133 Node3D *sn = p_gizmo->get_node_3d();
134
135 if (Object::cast_to<GPUParticlesCollisionSphere3D>(sn) || Object::cast_to<GPUParticlesAttractorSphere3D>(sn)) {
136 if (p_cancel) {
137 sn->call("set_radius", p_restore);
138 return;
139 }
140
141 EditorUndoRedoManager *ur = EditorUndoRedoManager::get_singleton();
142 ur->create_action(TTR("Change Radius"));
143 ur->add_do_method(sn, "set_radius", sn->call("get_radius"));
144 ur->add_undo_method(sn, "set_radius", p_restore);
145 ur->commit_action();
146 }
147
148 if (Object::cast_to<GPUParticlesCollisionBox3D>(sn) || Object::cast_to<GPUParticlesAttractorBox3D>(sn) || Object::cast_to<GPUParticlesAttractorVectorField3D>(sn) || Object::cast_to<GPUParticlesCollisionSDF3D>(sn) || Object::cast_to<GPUParticlesCollisionHeightField3D>(sn)) {
149 helper->box_commit_handle("Change Box Shape Size", p_cancel, sn);
150 }
151}
152
153void GPUParticlesCollision3DGizmoPlugin::redraw(EditorNode3DGizmo *p_gizmo) {
154 Node3D *cs = p_gizmo->get_node_3d();
155
156 p_gizmo->clear();
157
158 Ref<Material> material;
159 Ref<Material> material_internal;
160 if (Object::cast_to<GPUParticlesAttractor3D>(cs)) {
161 material = get_material("shape_material_attractor", p_gizmo);
162 material_internal = get_material("shape_material_attractor_internal", p_gizmo);
163 } else {
164 material = get_material("shape_material_collision", p_gizmo);
165 material_internal = get_material("shape_material_collision_internal", p_gizmo);
166 }
167
168 const Ref<Material> handles_material = get_material("handles");
169
170 if (Object::cast_to<GPUParticlesCollisionSphere3D>(cs) || Object::cast_to<GPUParticlesAttractorSphere3D>(cs)) {
171 float r = cs->call("get_radius");
172
173 Vector<Vector3> points;
174
175 for (int i = 0; i <= 360; i++) {
176 float ra = Math::deg_to_rad((float)i);
177 float rb = Math::deg_to_rad((float)i + 1);
178 Point2 a = Vector2(Math::sin(ra), Math::cos(ra)) * r;
179 Point2 b = Vector2(Math::sin(rb), Math::cos(rb)) * r;
180
181 points.push_back(Vector3(a.x, 0, a.y));
182 points.push_back(Vector3(b.x, 0, b.y));
183 points.push_back(Vector3(0, a.x, a.y));
184 points.push_back(Vector3(0, b.x, b.y));
185 points.push_back(Vector3(a.x, a.y, 0));
186 points.push_back(Vector3(b.x, b.y, 0));
187 }
188
189 Vector<Vector3> collision_segments;
190
191 for (int i = 0; i < 64; i++) {
192 float ra = i * (Math_TAU / 64.0);
193 float rb = (i + 1) * (Math_TAU / 64.0);
194 Point2 a = Vector2(Math::sin(ra), Math::cos(ra)) * r;
195 Point2 b = Vector2(Math::sin(rb), Math::cos(rb)) * r;
196
197 collision_segments.push_back(Vector3(a.x, 0, a.y));
198 collision_segments.push_back(Vector3(b.x, 0, b.y));
199 collision_segments.push_back(Vector3(0, a.x, a.y));
200 collision_segments.push_back(Vector3(0, b.x, b.y));
201 collision_segments.push_back(Vector3(a.x, a.y, 0));
202 collision_segments.push_back(Vector3(b.x, b.y, 0));
203 }
204
205 p_gizmo->add_lines(points, material);
206 p_gizmo->add_collision_segments(collision_segments);
207 Vector<Vector3> handles;
208 handles.push_back(Vector3(r, 0, 0));
209 p_gizmo->add_handles(handles, handles_material);
210 }
211
212 if (Object::cast_to<GPUParticlesCollisionBox3D>(cs) || Object::cast_to<GPUParticlesAttractorBox3D>(cs) || Object::cast_to<GPUParticlesAttractorVectorField3D>(cs) || Object::cast_to<GPUParticlesCollisionSDF3D>(cs) || Object::cast_to<GPUParticlesCollisionHeightField3D>(cs)) {
213 Vector<Vector3> lines;
214 AABB aabb;
215 aabb.size = cs->call("get_size").operator Vector3();
216 aabb.position = aabb.size / -2;
217
218 for (int i = 0; i < 12; i++) {
219 Vector3 a, b;
220 aabb.get_edge(i, a, b);
221 lines.push_back(a);
222 lines.push_back(b);
223 }
224
225 Vector<Vector3> handles = helper->box_get_handles(aabb.size);
226
227 p_gizmo->add_lines(lines, material);
228 p_gizmo->add_collision_segments(lines);
229 p_gizmo->add_handles(handles, handles_material);
230
231 GPUParticlesCollisionSDF3D *col_sdf = Object::cast_to<GPUParticlesCollisionSDF3D>(cs);
232 if (col_sdf) {
233 static const int subdivs[GPUParticlesCollisionSDF3D::RESOLUTION_MAX] = { 16, 32, 64, 128, 256, 512 };
234 int subdiv = subdivs[col_sdf->get_resolution()];
235 float cell_size = aabb.get_longest_axis_size() / subdiv;
236
237 lines.clear();
238
239 for (int i = 1; i < subdiv; i++) {
240 for (int j = 0; j < 3; j++) {
241 if (cell_size * i > aabb.size[j]) {
242 continue;
243 }
244
245 int j_n1 = (j + 1) % 3;
246 int j_n2 = (j + 2) % 3;
247
248 for (int k = 0; k < 4; k++) {
249 Vector3 from = aabb.position, to = aabb.position;
250 from[j] += cell_size * i;
251 to[j] += cell_size * i;
252
253 if (k & 1) {
254 to[j_n1] += aabb.size[j_n1];
255 } else {
256 to[j_n2] += aabb.size[j_n2];
257 }
258
259 if (k & 2) {
260 from[j_n1] += aabb.size[j_n1];
261 from[j_n2] += aabb.size[j_n2];
262 }
263
264 lines.push_back(from);
265 lines.push_back(to);
266 }
267 }
268 }
269
270 p_gizmo->add_lines(lines, material_internal);
271 }
272 }
273}
274