443 lines
14 KiB
C++
443 lines
14 KiB
C++
/*************************************************************************/
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/* collision_polygon_2d_editor_plugin.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) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 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 "collision_polygon_2d_editor_plugin.h"
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#include "canvas_item_editor_plugin.h"
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#include "editor/editor_settings.h"
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#include "os/file_access.h"
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void CollisionPolygon2DEditor::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_READY: {
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button_create->set_icon(get_icon("Edit", "EditorIcons"));
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button_edit->set_icon(get_icon("MovePoint", "EditorIcons"));
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button_edit->set_pressed(true);
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get_tree()->connect("node_removed", this, "_node_removed");
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} break;
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case NOTIFICATION_FIXED_PROCESS: {
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} break;
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}
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}
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void CollisionPolygon2DEditor::_node_removed(Node *p_node) {
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if (p_node == node) {
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node = NULL;
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hide();
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canvas_item_editor->get_viewport_control()->update();
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}
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}
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void CollisionPolygon2DEditor::_menu_option(int p_option) {
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switch (p_option) {
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case MODE_CREATE: {
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mode = MODE_CREATE;
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button_create->set_pressed(true);
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button_edit->set_pressed(false);
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} break;
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case MODE_EDIT: {
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mode = MODE_EDIT;
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button_create->set_pressed(false);
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button_edit->set_pressed(true);
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} break;
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}
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}
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void CollisionPolygon2DEditor::_wip_close() {
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undo_redo->create_action(TTR("Create Poly"));
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undo_redo->add_undo_method(node, "set_polygon", node->get_polygon());
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undo_redo->add_do_method(node, "set_polygon", wip);
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undo_redo->add_do_method(canvas_item_editor->get_viewport_control(), "update");
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undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(), "update");
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undo_redo->commit_action();
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wip.clear();
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wip_active = false;
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mode = MODE_EDIT;
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button_edit->set_pressed(true);
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button_create->set_pressed(false);
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edited_point = -1;
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}
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bool CollisionPolygon2DEditor::forward_input_event(const InputEvent &p_event) {
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if (!node)
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return false;
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switch (p_event.type) {
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case InputEvent::MOUSE_BUTTON: {
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const InputEventMouseButton &mb = p_event.mouse_button;
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Matrix32 xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
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Vector2 gpoint = Point2(mb.x, mb.y);
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Vector2 cpoint = canvas_item_editor->get_canvas_transform().affine_inverse().xform(gpoint);
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cpoint = canvas_item_editor->snap_point(cpoint);
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cpoint = node->get_global_transform().affine_inverse().xform(cpoint);
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Vector<Vector2> poly = node->get_polygon();
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//first check if a point is to be added (segment split)
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real_t grab_treshold = EDITOR_DEF("poly_editor/point_grab_radius", 8);
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switch (mode) {
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case MODE_CREATE: {
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if (mb.button_index == BUTTON_LEFT && mb.pressed) {
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if (!wip_active) {
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wip.clear();
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wip.push_back(cpoint);
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wip_active = true;
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edited_point_pos = cpoint;
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canvas_item_editor->get_viewport_control()->update();
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edited_point = 1;
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return true;
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} else {
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if (wip.size() > 1 && xform.xform(wip[0]).distance_to(gpoint) < grab_treshold) {
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//wip closed
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_wip_close();
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return true;
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} else {
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wip.push_back(cpoint);
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edited_point = wip.size();
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canvas_item_editor->get_viewport_control()->update();
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return true;
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//add wip point
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}
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}
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} else if (mb.button_index == BUTTON_RIGHT && mb.pressed && wip_active) {
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_wip_close();
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}
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} break;
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case MODE_EDIT: {
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if (mb.button_index == BUTTON_LEFT) {
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if (mb.pressed) {
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if (mb.mod.control) {
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if (poly.size() < 3) {
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undo_redo->create_action(TTR("Edit Poly"));
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undo_redo->add_undo_method(node, "set_polygon", poly);
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poly.push_back(cpoint);
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undo_redo->add_do_method(node, "set_polygon", poly);
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undo_redo->add_do_method(canvas_item_editor->get_viewport_control(), "update");
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undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(), "update");
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undo_redo->commit_action();
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return true;
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}
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//search edges
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int closest_idx = -1;
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Vector2 closest_pos;
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real_t closest_dist = 1e10;
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for (int i = 0; i < poly.size(); i++) {
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Vector2 points[2] = { xform.xform(poly[i]),
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xform.xform(poly[(i + 1) % poly.size()]) };
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Vector2 cp = Geometry::get_closest_point_to_segment_2d(gpoint, points);
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if (cp.distance_squared_to(points[0]) < CMP_EPSILON2 || cp.distance_squared_to(points[1]) < CMP_EPSILON2)
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continue; //not valid to reuse point
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real_t d = cp.distance_to(gpoint);
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if (d < closest_dist && d < grab_treshold) {
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closest_dist = d;
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closest_pos = cp;
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closest_idx = i;
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}
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}
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if (closest_idx >= 0) {
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pre_move_edit = poly;
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poly.insert(closest_idx + 1, xform.affine_inverse().xform(closest_pos));
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edited_point = closest_idx + 1;
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edited_point_pos = xform.affine_inverse().xform(closest_pos);
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node->set_polygon(poly);
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canvas_item_editor->get_viewport_control()->update();
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return true;
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}
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} else {
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//look for points to move
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int closest_idx = -1;
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Vector2 closest_pos;
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real_t closest_dist = 1e10;
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for (int i = 0; i < poly.size(); i++) {
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Vector2 cp = xform.xform(poly[i]);
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real_t d = cp.distance_to(gpoint);
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if (d < closest_dist && d < grab_treshold) {
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closest_dist = d;
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closest_pos = cp;
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closest_idx = i;
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}
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}
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if (closest_idx >= 0) {
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pre_move_edit = poly;
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edited_point = closest_idx;
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edited_point_pos = xform.affine_inverse().xform(closest_pos);
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canvas_item_editor->get_viewport_control()->update();
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return true;
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}
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}
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} else {
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if (edited_point != -1) {
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//apply
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ERR_FAIL_INDEX_V(edited_point, poly.size(), false);
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poly[edited_point] = edited_point_pos;
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undo_redo->create_action(TTR("Edit Poly"));
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undo_redo->add_do_method(node, "set_polygon", poly);
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undo_redo->add_undo_method(node, "set_polygon", pre_move_edit);
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undo_redo->add_do_method(canvas_item_editor->get_viewport_control(), "update");
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undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(), "update");
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undo_redo->commit_action();
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edited_point = -1;
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return true;
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}
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}
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}
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if (mb.button_index == BUTTON_RIGHT && mb.pressed && edited_point == -1) {
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int closest_idx = -1;
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Vector2 closest_pos;
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real_t closest_dist = 1e10;
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for (int i = 0; i < poly.size(); i++) {
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Vector2 cp = xform.xform(poly[i]);
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real_t d = cp.distance_to(gpoint);
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if (d < closest_dist && d < grab_treshold) {
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closest_dist = d;
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closest_pos = cp;
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closest_idx = i;
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}
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}
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if (closest_idx >= 0) {
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undo_redo->create_action(TTR("Edit Poly (Remove Point)"));
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undo_redo->add_undo_method(node, "set_polygon", poly);
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poly.remove(closest_idx);
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undo_redo->add_do_method(node, "set_polygon", poly);
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undo_redo->add_do_method(canvas_item_editor->get_viewport_control(), "update");
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undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(), "update");
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undo_redo->commit_action();
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return true;
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}
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}
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} break;
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}
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} break;
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case InputEvent::MOUSE_MOTION: {
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const InputEventMouseMotion &mm = p_event.mouse_motion;
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if (edited_point != -1 && (wip_active || mm.button_mask & BUTTON_MASK_LEFT)) {
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Vector2 gpoint = Point2(mm.x, mm.y);
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Vector2 cpoint = canvas_item_editor->get_canvas_transform().affine_inverse().xform(gpoint);
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cpoint = canvas_item_editor->snap_point(cpoint);
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edited_point_pos = node->get_global_transform().affine_inverse().xform(cpoint);
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canvas_item_editor->get_viewport_control()->update();
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}
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} break;
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}
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return false;
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}
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void CollisionPolygon2DEditor::_canvas_draw() {
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if (!node)
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return;
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Control *vpc = canvas_item_editor->get_viewport_control();
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Vector<Vector2> poly;
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if (wip_active)
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poly = wip;
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else
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poly = node->get_polygon();
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Matrix32 xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
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Ref<Texture> handle = get_icon("EditorHandle", "EditorIcons");
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for (int i = 0; i < poly.size(); i++) {
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Vector2 p, p2;
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p = i == edited_point ? edited_point_pos : poly[i];
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if ((wip_active && i == poly.size() - 1) || (((i + 1) % poly.size()) == edited_point))
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p2 = edited_point_pos;
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else
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p2 = poly[(i + 1) % poly.size()];
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Vector2 point = xform.xform(p);
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Vector2 next_point = xform.xform(p2);
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Color col = Color(1, 0.3, 0.1, 0.8);
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vpc->draw_line(point, next_point, col, 2);
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vpc->draw_texture(handle, point - handle->get_size() * 0.5);
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}
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}
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void CollisionPolygon2DEditor::edit(Node *p_collision_polygon) {
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if (!canvas_item_editor) {
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canvas_item_editor = CanvasItemEditor::get_singleton();
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}
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if (p_collision_polygon) {
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node = p_collision_polygon->cast_to<CollisionPolygon2D>();
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if (!canvas_item_editor->get_viewport_control()->is_connected("draw", this, "_canvas_draw"))
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canvas_item_editor->get_viewport_control()->connect("draw", this, "_canvas_draw");
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wip.clear();
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wip_active = false;
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edited_point = -1;
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canvas_item_editor->get_viewport_control()->update();
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} else {
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node = NULL;
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if (canvas_item_editor->get_viewport_control()->is_connected("draw", this, "_canvas_draw"))
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canvas_item_editor->get_viewport_control()->disconnect("draw", this, "_canvas_draw");
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}
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}
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void CollisionPolygon2DEditor::_bind_methods() {
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ObjectTypeDB::bind_method(_MD("_menu_option"), &CollisionPolygon2DEditor::_menu_option);
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ObjectTypeDB::bind_method(_MD("_canvas_draw"), &CollisionPolygon2DEditor::_canvas_draw);
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ObjectTypeDB::bind_method(_MD("_node_removed"), &CollisionPolygon2DEditor::_node_removed);
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}
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CollisionPolygon2DEditor::CollisionPolygon2DEditor(EditorNode *p_editor) {
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node = NULL;
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canvas_item_editor = NULL;
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editor = p_editor;
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undo_redo = editor->get_undo_redo();
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add_child(memnew(VSeparator));
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button_create = memnew(ToolButton);
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add_child(button_create);
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button_create->connect("pressed", this, "_menu_option", varray(MODE_CREATE));
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button_create->set_toggle_mode(true);
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button_create->set_tooltip(TTR("Create a new polygon from scratch."));
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button_edit = memnew(ToolButton);
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add_child(button_edit);
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button_edit->connect("pressed", this, "_menu_option", varray(MODE_EDIT));
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button_edit->set_toggle_mode(true);
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button_edit->set_tooltip("Edit existing polygon:\nLMB: Move Point.\nCtrl+LMB: Split Segment.\nRMB: Erase Point.");
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//add_constant_override("separation",0);
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#if 0
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options = memnew( MenuButton );
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add_child(options);
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options->set_area_as_parent_rect();
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options->set_text("Polygon");
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//options->get_popup()->add_item("Parse BBCode",PARSE_BBCODE);
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options->get_popup()->connect("item_pressed", this,"_menu_option");
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#endif
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mode = MODE_EDIT;
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wip_active = false;
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}
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void CollisionPolygon2DEditorPlugin::edit(Object *p_object) {
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collision_polygon_editor->edit(p_object->cast_to<Node>());
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}
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bool CollisionPolygon2DEditorPlugin::handles(Object *p_object) const {
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return p_object->is_type("CollisionPolygon2D");
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}
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void CollisionPolygon2DEditorPlugin::make_visible(bool p_visible) {
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if (p_visible) {
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collision_polygon_editor->show();
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} else {
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collision_polygon_editor->hide();
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collision_polygon_editor->edit(NULL);
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}
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}
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CollisionPolygon2DEditorPlugin::CollisionPolygon2DEditorPlugin(EditorNode *p_node) {
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editor = p_node;
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collision_polygon_editor = memnew(CollisionPolygon2DEditor(p_node));
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CanvasItemEditor::get_singleton()->add_control_to_menu_panel(collision_polygon_editor);
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collision_polygon_editor->hide();
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}
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CollisionPolygon2DEditorPlugin::~CollisionPolygon2DEditorPlugin() {
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}
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