1 /*************************************************************************/
2 /* light_occluder_2d_editor_plugin.cpp */
3 /*************************************************************************/
4 /* This file is part of: */
5 /* GODOT ENGINE */
6 /* https://godotengine.org */
7 /*************************************************************************/
8 /* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
9 /* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
10 /* */
11 /* Permission is hereby granted, free of charge, to any person obtaining */
12 /* a copy of this software and associated documentation files (the */
13 /* "Software"), to deal in the Software without restriction, including */
14 /* without limitation the rights to use, copy, modify, merge, publish, */
15 /* distribute, sublicense, and/or sell copies of the Software, and to */
16 /* permit persons to whom the Software is furnished to do so, subject to */
17 /* the following conditions: */
18 /* */
19 /* The above copyright notice and this permission notice shall be */
20 /* included in all copies or substantial portions of the Software. */
21 /* */
22 /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
23 /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
24 /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
25 /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
26 /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
27 /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
28 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
29 /*************************************************************************/
30 #include "light_occluder_2d_editor_plugin.h"
31
32 #include "canvas_item_editor_plugin.h"
33 #include "editor/editor_settings.h"
34 #include "os/file_access.h"
35
_notification(int p_what)36 void LightOccluder2DEditor::_notification(int p_what) {
37
38 switch (p_what) {
39
40 case NOTIFICATION_READY: {
41
42 button_create->set_icon(get_icon("Edit", "EditorIcons"));
43 button_edit->set_icon(get_icon("MovePoint", "EditorIcons"));
44 button_edit->set_pressed(true);
45 get_tree()->connect("node_removed", this, "_node_removed");
46 create_poly->connect("confirmed", this, "_create_poly");
47
48 } break;
49 case NOTIFICATION_FIXED_PROCESS: {
50
51 } break;
52 }
53 }
_node_removed(Node * p_node)54 void LightOccluder2DEditor::_node_removed(Node *p_node) {
55
56 if (p_node == node) {
57 node = NULL;
58 hide();
59 canvas_item_editor->get_viewport_control()->update();
60 }
61 }
62
_menu_option(int p_option)63 void LightOccluder2DEditor::_menu_option(int p_option) {
64
65 switch (p_option) {
66
67 case MODE_CREATE: {
68
69 mode = MODE_CREATE;
70 button_create->set_pressed(true);
71 button_edit->set_pressed(false);
72 } break;
73 case MODE_EDIT: {
74
75 mode = MODE_EDIT;
76 button_create->set_pressed(false);
77 button_edit->set_pressed(true);
78 } break;
79 }
80 }
81
_wip_close(bool p_closed)82 void LightOccluder2DEditor::_wip_close(bool p_closed) {
83
84 undo_redo->create_action(TTR("Create Poly"));
85 undo_redo->add_undo_method(node->get_occluder_polygon().ptr(), "set_polygon", node->get_occluder_polygon()->get_polygon());
86 undo_redo->add_do_method(node->get_occluder_polygon().ptr(), "set_polygon", wip);
87 undo_redo->add_undo_method(node->get_occluder_polygon().ptr(), "set_closed", node->get_occluder_polygon()->is_closed());
88 undo_redo->add_do_method(node->get_occluder_polygon().ptr(), "set_closed", p_closed);
89
90 undo_redo->add_do_method(canvas_item_editor->get_viewport_control(), "update");
91 undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(), "update");
92 undo_redo->commit_action();
93 wip.clear();
94 wip_active = false;
95 mode = MODE_EDIT;
96 button_edit->set_pressed(true);
97 button_create->set_pressed(false);
98 edited_point = -1;
99 }
100
forward_input_event(const InputEvent & p_event)101 bool LightOccluder2DEditor::forward_input_event(const InputEvent &p_event) {
102
103 if (!node)
104 return false;
105
106 if (node->get_occluder_polygon().is_null()) {
107 if (p_event.type == InputEvent::MOUSE_BUTTON && p_event.mouse_button.button_index == 1 && p_event.mouse_button.pressed) {
108 create_poly->set_text("No OccluderPolygon2D resource on this node.\nCreate and assign one?");
109 create_poly->popup_centered_minsize();
110 }
111 return (p_event.type == InputEvent::MOUSE_BUTTON && p_event.mouse_button.button_index == 1);
112 }
113 switch (p_event.type) {
114
115 case InputEvent::MOUSE_BUTTON: {
116
117 const InputEventMouseButton &mb = p_event.mouse_button;
118
119 Matrix32 xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
120
121 Vector2 gpoint = Point2(mb.x, mb.y);
122 Vector2 cpoint = canvas_item_editor->get_canvas_transform().affine_inverse().xform(gpoint);
123 cpoint = canvas_item_editor->snap_point(cpoint);
124 cpoint = node->get_global_transform().affine_inverse().xform(cpoint);
125
126 Vector<Vector2> poly = Variant(node->get_occluder_polygon()->get_polygon());
127
128 //first check if a point is to be added (segment split)
129 real_t grab_treshold = EDITOR_DEF("poly_editor/point_grab_radius", 8);
130
131 switch (mode) {
132
133 case MODE_CREATE: {
134
135 if (mb.button_index == BUTTON_LEFT && mb.pressed) {
136
137 if (!wip_active) {
138
139 wip.clear();
140 wip.push_back(cpoint);
141 wip_active = true;
142 edited_point_pos = cpoint;
143 canvas_item_editor->get_viewport_control()->update();
144 edited_point = 1;
145 return true;
146 } else {
147
148 if (wip.size() > 1 && xform.xform(wip[0]).distance_to(gpoint) < grab_treshold) {
149 //wip closed
150 _wip_close(true);
151
152 return true;
153 } else if (wip.size() > 1 && xform.xform(wip[wip.size() - 1]).distance_to(gpoint) < grab_treshold) {
154 //wip closed
155 _wip_close(false);
156 return true;
157
158 } else {
159
160 wip.push_back(cpoint);
161 edited_point = wip.size();
162 canvas_item_editor->get_viewport_control()->update();
163 return true;
164
165 //add wip point
166 }
167 }
168 } else if (mb.button_index == BUTTON_RIGHT && mb.pressed && wip_active) {
169 _wip_close(true);
170 }
171
172 } break;
173
174 case MODE_EDIT: {
175
176 if (mb.button_index == BUTTON_LEFT) {
177 if (mb.pressed) {
178
179 if (mb.mod.control) {
180
181 if (poly.size() < 3) {
182
183 undo_redo->create_action(TTR("Edit Poly"));
184 undo_redo->add_undo_method(node->get_occluder_polygon().ptr(), "set_polygon", poly);
185 poly.push_back(cpoint);
186 undo_redo->add_do_method(node->get_occluder_polygon().ptr(), "set_polygon", poly);
187 undo_redo->add_do_method(canvas_item_editor->get_viewport_control(), "update");
188 undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(), "update");
189 undo_redo->commit_action();
190 return true;
191 }
192
193 //search edges
194 int closest_idx = -1;
195 Vector2 closest_pos;
196 real_t closest_dist = 1e10;
197 for (int i = 0; i < poly.size(); i++) {
198
199 Vector2 points[2] = { xform.xform(poly[i]),
200 xform.xform(poly[(i + 1) % poly.size()]) };
201
202 Vector2 cp = Geometry::get_closest_point_to_segment_2d(gpoint, points);
203 if (cp.distance_squared_to(points[0]) < CMP_EPSILON2 || cp.distance_squared_to(points[1]) < CMP_EPSILON2)
204 continue; //not valid to reuse point
205
206 real_t d = cp.distance_to(gpoint);
207 if (d < closest_dist && d < grab_treshold) {
208 closest_dist = d;
209 closest_pos = cp;
210 closest_idx = i;
211 }
212 }
213
214 if (closest_idx >= 0) {
215
216 pre_move_edit = poly;
217 poly.insert(closest_idx + 1, xform.affine_inverse().xform(closest_pos));
218 edited_point = closest_idx + 1;
219 edited_point_pos = xform.affine_inverse().xform(closest_pos);
220 node->get_occluder_polygon()->set_polygon(Variant(poly));
221 canvas_item_editor->get_viewport_control()->update();
222 return true;
223 }
224 } else {
225
226 //look for points to move
227
228 int closest_idx = -1;
229 Vector2 closest_pos;
230 real_t closest_dist = 1e10;
231 for (int i = 0; i < poly.size(); i++) {
232
233 Vector2 cp = xform.xform(poly[i]);
234
235 real_t d = cp.distance_to(gpoint);
236 if (d < closest_dist && d < grab_treshold) {
237 closest_dist = d;
238 closest_pos = cp;
239 closest_idx = i;
240 }
241 }
242
243 if (closest_idx >= 0) {
244
245 pre_move_edit = poly;
246 edited_point = closest_idx;
247 edited_point_pos = xform.affine_inverse().xform(closest_pos);
248 canvas_item_editor->get_viewport_control()->update();
249 return true;
250 }
251 }
252 } else {
253
254 if (edited_point != -1) {
255
256 //apply
257
258 ERR_FAIL_INDEX_V(edited_point, poly.size(), false);
259 poly[edited_point] = edited_point_pos;
260 undo_redo->create_action(TTR("Edit Poly"));
261 undo_redo->add_do_method(node->get_occluder_polygon().ptr(), "set_polygon", poly);
262 undo_redo->add_undo_method(node->get_occluder_polygon().ptr(), "set_polygon", pre_move_edit);
263 undo_redo->add_do_method(canvas_item_editor->get_viewport_control(), "update");
264 undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(), "update");
265 undo_redo->commit_action();
266
267 edited_point = -1;
268 return true;
269 }
270 }
271 }
272 if (mb.button_index == BUTTON_RIGHT && mb.pressed && edited_point == -1) {
273
274 int closest_idx = -1;
275 Vector2 closest_pos;
276 real_t closest_dist = 1e10;
277 for (int i = 0; i < poly.size(); i++) {
278
279 Vector2 cp = xform.xform(poly[i]);
280
281 real_t d = cp.distance_to(gpoint);
282 if (d < closest_dist && d < grab_treshold) {
283 closest_dist = d;
284 closest_pos = cp;
285 closest_idx = i;
286 }
287 }
288
289 if (closest_idx >= 0) {
290
291 undo_redo->create_action(TTR("Edit Poly (Remove Point)"));
292 undo_redo->add_undo_method(node->get_occluder_polygon().ptr(), "set_polygon", poly);
293 poly.remove(closest_idx);
294 undo_redo->add_do_method(node->get_occluder_polygon().ptr(), "set_polygon", poly);
295 undo_redo->add_do_method(canvas_item_editor->get_viewport_control(), "update");
296 undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(), "update");
297 undo_redo->commit_action();
298 return true;
299 }
300 }
301
302 } break;
303 }
304
305 } break;
306 case InputEvent::MOUSE_MOTION: {
307
308 const InputEventMouseMotion &mm = p_event.mouse_motion;
309
310 if (edited_point != -1 && (wip_active || mm.button_mask & BUTTON_MASK_LEFT)) {
311
312 Vector2 gpoint = Point2(mm.x, mm.y);
313 Vector2 cpoint = canvas_item_editor->get_canvas_transform().affine_inverse().xform(gpoint);
314 cpoint = canvas_item_editor->snap_point(cpoint);
315 edited_point_pos = node->get_global_transform().affine_inverse().xform(cpoint);
316
317 canvas_item_editor->get_viewport_control()->update();
318 }
319
320 } break;
321 }
322
323 return false;
324 }
_canvas_draw()325 void LightOccluder2DEditor::_canvas_draw() {
326
327 if (!node || !node->get_occluder_polygon().is_valid())
328 return;
329
330 Control *vpc = canvas_item_editor->get_viewport_control();
331
332 Vector<Vector2> poly;
333
334 if (wip_active)
335 poly = wip;
336 else
337 poly = Variant(node->get_occluder_polygon()->get_polygon());
338
339 Matrix32 xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
340 Ref<Texture> handle = get_icon("EditorHandle", "EditorIcons");
341
342 for (int i = 0; i < poly.size(); i++) {
343
344 Vector2 p, p2;
345 p = i == edited_point ? edited_point_pos : poly[i];
346 if ((wip_active && i == poly.size() - 1) || (((i + 1) % poly.size()) == edited_point))
347 p2 = edited_point_pos;
348 else
349 p2 = poly[(i + 1) % poly.size()];
350
351 Vector2 point = xform.xform(p);
352 Vector2 next_point = xform.xform(p2);
353
354 Color col = Color(1, 0.3, 0.1, 0.8);
355
356 if (i == poly.size() - 1 && (!node->get_occluder_polygon()->is_closed() || wip_active)) {
357
358 } else {
359 vpc->draw_line(point, next_point, col, 2);
360 }
361 vpc->draw_texture(handle, point - handle->get_size() * 0.5);
362 }
363 }
364
edit(Node * p_collision_polygon)365 void LightOccluder2DEditor::edit(Node *p_collision_polygon) {
366
367 if (!canvas_item_editor) {
368 canvas_item_editor = CanvasItemEditor::get_singleton();
369 }
370
371 if (p_collision_polygon) {
372
373 node = p_collision_polygon->cast_to<LightOccluder2D>();
374 if (!canvas_item_editor->get_viewport_control()->is_connected("draw", this, "_canvas_draw"))
375 canvas_item_editor->get_viewport_control()->connect("draw", this, "_canvas_draw");
376 wip.clear();
377 wip_active = false;
378 edited_point = -1;
379 canvas_item_editor->get_viewport_control()->update();
380 } else {
381 node = NULL;
382
383 if (canvas_item_editor->get_viewport_control()->is_connected("draw", this, "_canvas_draw"))
384 canvas_item_editor->get_viewport_control()->disconnect("draw", this, "_canvas_draw");
385 }
386 }
387
_create_poly()388 void LightOccluder2DEditor::_create_poly() {
389
390 if (!node)
391 return;
392 undo_redo->create_action(TTR("Create Occluder Polygon"));
393 undo_redo->add_do_method(node, "set_occluder_polygon", Ref<OccluderPolygon2D>(memnew(OccluderPolygon2D)));
394 undo_redo->add_undo_method(node, "set_occluder_polygon", Variant(REF()));
395 undo_redo->commit_action();
396 }
397
_bind_methods()398 void LightOccluder2DEditor::_bind_methods() {
399
400 ObjectTypeDB::bind_method(_MD("_menu_option"), &LightOccluder2DEditor::_menu_option);
401 ObjectTypeDB::bind_method(_MD("_canvas_draw"), &LightOccluder2DEditor::_canvas_draw);
402 ObjectTypeDB::bind_method(_MD("_node_removed"), &LightOccluder2DEditor::_node_removed);
403 ObjectTypeDB::bind_method(_MD("_create_poly"), &LightOccluder2DEditor::_create_poly);
404 }
405
LightOccluder2DEditor(EditorNode * p_editor)406 LightOccluder2DEditor::LightOccluder2DEditor(EditorNode *p_editor) {
407
408 node = NULL;
409 canvas_item_editor = NULL;
410 editor = p_editor;
411 undo_redo = editor->get_undo_redo();
412
413 add_child(memnew(VSeparator));
414 button_create = memnew(ToolButton);
415 add_child(button_create);
416 button_create->connect("pressed", this, "_menu_option", varray(MODE_CREATE));
417 button_create->set_toggle_mode(true);
418 button_create->set_tooltip(TTR("Create a new polygon from scratch."));
419
420 button_edit = memnew(ToolButton);
421 add_child(button_edit);
422 button_edit->connect("pressed", this, "_menu_option", varray(MODE_EDIT));
423 button_edit->set_toggle_mode(true);
424 button_edit->set_tooltip(TTR("Edit existing polygon:") + "\n" + TTR("LMB: Move Point.") + "\n" + TTR("Ctrl+LMB: Split Segment.") + "\n" + TTR("RMB: Erase Point."));
425
426 create_poly = memnew(ConfirmationDialog);
427 add_child(create_poly);
428 create_poly->get_ok()->set_text(TTR("Create"));
429
430 //add_constant_override("separation",0);
431
432 #if 0
433 options = memnew( MenuButton );
434 add_child(options);
435 options->set_area_as_parent_rect();
436 options->set_text("Polygon");
437 //options->get_popup()->add_item("Parse BBCode",PARSE_BBCODE);
438 options->get_popup()->connect("item_pressed", this,"_menu_option");
439 #endif
440
441 mode = MODE_EDIT;
442 wip_active = false;
443 }
444
edit(Object * p_object)445 void LightOccluder2DEditorPlugin::edit(Object *p_object) {
446
447 collision_polygon_editor->edit(p_object->cast_to<Node>());
448 }
449
handles(Object * p_object) const450 bool LightOccluder2DEditorPlugin::handles(Object *p_object) const {
451
452 return p_object->is_type("LightOccluder2D");
453 }
454
make_visible(bool p_visible)455 void LightOccluder2DEditorPlugin::make_visible(bool p_visible) {
456
457 if (p_visible) {
458 collision_polygon_editor->show();
459 } else {
460
461 collision_polygon_editor->hide();
462 collision_polygon_editor->edit(NULL);
463 }
464 }
465
LightOccluder2DEditorPlugin(EditorNode * p_node)466 LightOccluder2DEditorPlugin::LightOccluder2DEditorPlugin(EditorNode *p_node) {
467
468 editor = p_node;
469 collision_polygon_editor = memnew(LightOccluder2DEditor(p_node));
470 CanvasItemEditor::get_singleton()->add_control_to_menu_panel(collision_polygon_editor);
471
472 collision_polygon_editor->hide();
473 }
474
~LightOccluder2DEditorPlugin()475 LightOccluder2DEditorPlugin::~LightOccluder2DEditorPlugin() {
476 }
477