1/**************************************************************************/
2/* world_boundary_shape_2d.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 */
12/* a copy of this software and associated documentation files (the */
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/* */
22/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
23/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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29/**************************************************************************/
30
31#include "world_boundary_shape_2d.h"
32
33#include "core/math/geometry_2d.h"
34#include "servers/physics_server_2d.h"
35#include "servers/rendering_server.h"
36
37bool WorldBoundaryShape2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
38 Vector2 point = distance * normal;
39 Vector2 l[2][2] = { { point - normal.orthogonal() * 100, point + normal.orthogonal() * 100 }, { point, point + normal * 30 } };
40
41 for (int i = 0; i < 2; i++) {
42 Vector2 closest = Geometry2D::get_closest_point_to_segment(p_point, l[i]);
43 if (p_point.distance_to(closest) < p_tolerance) {
44 return true;
45 }
46 }
47
48 return false;
49}
50
51void WorldBoundaryShape2D::_update_shape() {
52 Array arr;
53 arr.push_back(normal);
54 arr.push_back(distance);
55 PhysicsServer2D::get_singleton()->shape_set_data(get_rid(), arr);
56 emit_changed();
57}
58
59void WorldBoundaryShape2D::set_normal(const Vector2 &p_normal) {
60 // Can be non-unit but prevent zero.
61 ERR_FAIL_COND(p_normal.is_zero_approx());
62 if (normal == p_normal) {
63 return;
64 }
65 normal = p_normal;
66 _update_shape();
67}
68
69void WorldBoundaryShape2D::set_distance(real_t p_distance) {
70 if (distance == p_distance) {
71 return;
72 }
73 distance = p_distance;
74 _update_shape();
75}
76
77Vector2 WorldBoundaryShape2D::get_normal() const {
78 return normal;
79}
80
81real_t WorldBoundaryShape2D::get_distance() const {
82 return distance;
83}
84
85void WorldBoundaryShape2D::draw(const RID &p_to_rid, const Color &p_color) {
86 Vector2 point = distance * normal;
87 real_t line_width = 3.0;
88
89 Vector2 l1[2] = { point - normal.orthogonal() * 100, point + normal.orthogonal() * 100 };
90 RS::get_singleton()->canvas_item_add_line(p_to_rid, l1[0], l1[1], p_color, line_width);
91 Vector2 l2[2] = { point + normal.normalized() * (0.5 * line_width), point + normal * 30 };
92 RS::get_singleton()->canvas_item_add_line(p_to_rid, l2[0], l2[1], p_color, line_width);
93}
94
95Rect2 WorldBoundaryShape2D::get_rect() const {
96 Vector2 point = distance * normal;
97
98 Vector2 l1[2] = { point - normal.orthogonal() * 100, point + normal.orthogonal() * 100 };
99 Vector2 l2[2] = { point, point + normal * 30 };
100 Rect2 rect;
101 rect.position = l1[0];
102 rect.expand_to(l1[1]);
103 rect.expand_to(l2[0]);
104 rect.expand_to(l2[1]);
105 return rect;
106}
107
108real_t WorldBoundaryShape2D::get_enclosing_radius() const {
109 return distance;
110}
111
112void WorldBoundaryShape2D::_bind_methods() {
113 ClassDB::bind_method(D_METHOD("set_normal", "normal"), &WorldBoundaryShape2D::set_normal);
114 ClassDB::bind_method(D_METHOD("get_normal"), &WorldBoundaryShape2D::get_normal);
115
116 ClassDB::bind_method(D_METHOD("set_distance", "distance"), &WorldBoundaryShape2D::set_distance);
117 ClassDB::bind_method(D_METHOD("get_distance"), &WorldBoundaryShape2D::get_distance);
118
119 ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "normal"), "set_normal", "get_normal");
120 ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "distance", PROPERTY_HINT_RANGE, "-1024,1024,0.01,or_greater,or_less,suffix:px"), "set_distance", "get_distance");
121}
122
123WorldBoundaryShape2D::WorldBoundaryShape2D() :
124 Shape2D(PhysicsServer2D::get_singleton()->world_boundary_shape_create()) {
125 _update_shape();
126}
127