godot/scene/2d/navigation_link_2d.cpp
2022-12-29 16:23:38 -05:00

292 lines
11 KiB
C++

/*************************************************************************/
/* navigation_link_2d.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 "navigation_link_2d.h"
#include "core/math/geometry_2d.h"
#include "scene/resources/world_2d.h"
#include "servers/navigation_server_2d.h"
#include "servers/navigation_server_3d.h"
void NavigationLink2D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_enabled", "enabled"), &NavigationLink2D::set_enabled);
ClassDB::bind_method(D_METHOD("is_enabled"), &NavigationLink2D::is_enabled);
ClassDB::bind_method(D_METHOD("set_bidirectional", "bidirectional"), &NavigationLink2D::set_bidirectional);
ClassDB::bind_method(D_METHOD("is_bidirectional"), &NavigationLink2D::is_bidirectional);
ClassDB::bind_method(D_METHOD("set_navigation_layers", "navigation_layers"), &NavigationLink2D::set_navigation_layers);
ClassDB::bind_method(D_METHOD("get_navigation_layers"), &NavigationLink2D::get_navigation_layers);
ClassDB::bind_method(D_METHOD("set_navigation_layer_value", "layer_number", "value"), &NavigationLink2D::set_navigation_layer_value);
ClassDB::bind_method(D_METHOD("get_navigation_layer_value", "layer_number"), &NavigationLink2D::get_navigation_layer_value);
ClassDB::bind_method(D_METHOD("set_start_location", "location"), &NavigationLink2D::set_start_location);
ClassDB::bind_method(D_METHOD("get_start_location"), &NavigationLink2D::get_start_location);
ClassDB::bind_method(D_METHOD("set_end_location", "location"), &NavigationLink2D::set_end_location);
ClassDB::bind_method(D_METHOD("get_end_location"), &NavigationLink2D::get_end_location);
ClassDB::bind_method(D_METHOD("set_enter_cost", "enter_cost"), &NavigationLink2D::set_enter_cost);
ClassDB::bind_method(D_METHOD("get_enter_cost"), &NavigationLink2D::get_enter_cost);
ClassDB::bind_method(D_METHOD("set_travel_cost", "travel_cost"), &NavigationLink2D::set_travel_cost);
ClassDB::bind_method(D_METHOD("get_travel_cost"), &NavigationLink2D::get_travel_cost);
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "enabled"), "set_enabled", "is_enabled");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "bidirectional"), "set_bidirectional", "is_bidirectional");
ADD_PROPERTY(PropertyInfo(Variant::INT, "navigation_layers", PROPERTY_HINT_LAYERS_2D_NAVIGATION), "set_navigation_layers", "get_navigation_layers");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "start_location"), "set_start_location", "get_start_location");
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "end_location"), "set_end_location", "get_end_location");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "enter_cost"), "set_enter_cost", "get_enter_cost");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "travel_cost"), "set_travel_cost", "get_travel_cost");
}
void NavigationLink2D::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_ENTER_TREE: {
if (enabled) {
NavigationServer2D::get_singleton()->link_set_map(link, get_world_2d()->get_navigation_map());
// Update global positions for the link.
Transform2D gt = get_global_transform();
NavigationServer2D::get_singleton()->link_set_start_location(link, gt.xform(start_location));
NavigationServer2D::get_singleton()->link_set_end_location(link, gt.xform(end_location));
}
} break;
case NOTIFICATION_TRANSFORM_CHANGED: {
// Update global positions for the link.
Transform2D gt = get_global_transform();
NavigationServer2D::get_singleton()->link_set_start_location(link, gt.xform(start_location));
NavigationServer2D::get_singleton()->link_set_end_location(link, gt.xform(end_location));
} break;
case NOTIFICATION_EXIT_TREE: {
NavigationServer2D::get_singleton()->link_set_map(link, RID());
} break;
case NOTIFICATION_DRAW: {
#ifdef DEBUG_ENABLED
if (is_inside_tree() && (Engine::get_singleton()->is_editor_hint() || NavigationServer2D::get_singleton()->get_debug_enabled())) {
Color color;
if (enabled) {
color = NavigationServer2D::get_singleton()->get_debug_navigation_link_connection_color();
} else {
color = NavigationServer2D::get_singleton()->get_debug_navigation_link_connection_disabled_color();
}
real_t radius = NavigationServer2D::get_singleton()->map_get_link_connection_radius(get_world_2d()->get_navigation_map());
draw_line(get_start_location(), get_end_location(), color);
draw_arc(get_start_location(), radius, 0, Math_TAU, 10, color);
draw_arc(get_end_location(), radius, 0, Math_TAU, 10, color);
}
#endif // DEBUG_ENABLED
} break;
}
}
#ifdef TOOLS_ENABLED
Rect2 NavigationLink2D::_edit_get_rect() const {
if (!is_inside_tree()) {
return Rect2();
}
real_t radius = NavigationServer2D::get_singleton()->map_get_link_connection_radius(get_world_2d()->get_navigation_map());
Rect2 rect(get_start_location(), Size2());
rect.expand_to(get_end_location());
rect.grow_by(radius);
return rect;
}
bool NavigationLink2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
Point2 segment[2] = { get_start_location(), get_end_location() };
Vector2 closest_point = Geometry2D::get_closest_point_to_segment(p_point, segment);
return p_point.distance_to(closest_point) < p_tolerance;
}
#endif // TOOLS_ENABLED
void NavigationLink2D::set_enabled(bool p_enabled) {
if (enabled == p_enabled) {
return;
}
enabled = p_enabled;
if (!is_inside_tree()) {
return;
}
if (!enabled) {
NavigationServer2D::get_singleton()->link_set_map(link, RID());
} else {
NavigationServer2D::get_singleton()->link_set_map(link, get_world_2d()->get_navigation_map());
}
#ifdef DEBUG_ENABLED
if (Engine::get_singleton()->is_editor_hint() || NavigationServer2D::get_singleton()->get_debug_enabled()) {
queue_redraw();
}
#endif // DEBUG_ENABLED
}
void NavigationLink2D::set_bidirectional(bool p_bidirectional) {
if (bidirectional == p_bidirectional) {
return;
}
bidirectional = p_bidirectional;
NavigationServer2D::get_singleton()->link_set_bidirectional(link, bidirectional);
}
void NavigationLink2D::set_navigation_layers(uint32_t p_navigation_layers) {
if (navigation_layers == p_navigation_layers) {
return;
}
navigation_layers = p_navigation_layers;
NavigationServer2D::get_singleton()->link_set_navigation_layers(link, navigation_layers);
}
void NavigationLink2D::set_navigation_layer_value(int p_layer_number, bool p_value) {
ERR_FAIL_COND_MSG(p_layer_number < 1, "Navigation layer number must be between 1 and 32 inclusive.");
ERR_FAIL_COND_MSG(p_layer_number > 32, "Navigation layer number must be between 1 and 32 inclusive.");
uint32_t _navigation_layers = get_navigation_layers();
if (p_value) {
_navigation_layers |= 1 << (p_layer_number - 1);
} else {
_navigation_layers &= ~(1 << (p_layer_number - 1));
}
set_navigation_layers(_navigation_layers);
}
bool NavigationLink2D::get_navigation_layer_value(int p_layer_number) const {
ERR_FAIL_COND_V_MSG(p_layer_number < 1, false, "Navigation layer number must be between 1 and 32 inclusive.");
ERR_FAIL_COND_V_MSG(p_layer_number > 32, false, "Navigation layer number must be between 1 and 32 inclusive.");
return get_navigation_layers() & (1 << (p_layer_number - 1));
}
void NavigationLink2D::set_start_location(Vector2 p_location) {
if (start_location.is_equal_approx(p_location)) {
return;
}
start_location = p_location;
if (!is_inside_tree()) {
return;
}
Transform2D gt = get_global_transform();
NavigationServer2D::get_singleton()->link_set_start_location(link, gt.xform(start_location));
update_configuration_warnings();
#ifdef DEBUG_ENABLED
if (Engine::get_singleton()->is_editor_hint() || NavigationServer2D::get_singleton()->get_debug_enabled()) {
queue_redraw();
}
#endif // DEBUG_ENABLED
}
void NavigationLink2D::set_end_location(Vector2 p_location) {
if (end_location.is_equal_approx(p_location)) {
return;
}
end_location = p_location;
if (!is_inside_tree()) {
return;
}
Transform2D gt = get_global_transform();
NavigationServer2D::get_singleton()->link_set_end_location(link, gt.xform(end_location));
update_configuration_warnings();
#ifdef DEBUG_ENABLED
if (Engine::get_singleton()->is_editor_hint() || NavigationServer2D::get_singleton()->get_debug_enabled()) {
queue_redraw();
}
#endif // DEBUG_ENABLED
}
void NavigationLink2D::set_enter_cost(real_t p_enter_cost) {
ERR_FAIL_COND_MSG(p_enter_cost < 0.0, "The enter_cost must be positive.");
if (Math::is_equal_approx(enter_cost, p_enter_cost)) {
return;
}
enter_cost = p_enter_cost;
NavigationServer2D::get_singleton()->link_set_enter_cost(link, enter_cost);
}
void NavigationLink2D::set_travel_cost(real_t p_travel_cost) {
ERR_FAIL_COND_MSG(p_travel_cost < 0.0, "The travel_cost must be positive.");
if (Math::is_equal_approx(travel_cost, p_travel_cost)) {
return;
}
travel_cost = p_travel_cost;
NavigationServer2D::get_singleton()->link_set_travel_cost(link, travel_cost);
}
PackedStringArray NavigationLink2D::get_configuration_warnings() const {
PackedStringArray warnings = Node::get_configuration_warnings();
if (start_location.is_equal_approx(end_location)) {
warnings.push_back(RTR("NavigationLink2D start location should be different than the end location to be useful."));
}
return warnings;
}
NavigationLink2D::NavigationLink2D() {
link = NavigationServer2D::get_singleton()->link_create();
NavigationServer2D::get_singleton()->link_set_owner_id(link, get_instance_id());
set_notify_transform(true);
}
NavigationLink2D::~NavigationLink2D() {
ERR_FAIL_NULL(NavigationServer2D::get_singleton());
NavigationServer2D::get_singleton()->free(link);
link = RID();
}