godot/scene/resources/world_margin_shape_2d.cpp
Hugo Locurcio 8e3f71d750
Rename LineShape2D to WorldMarginShape2D
The new name makes it more obvious that it acts as an infinite plane,
and is consistent with its 3D counterpart (WorldMarginShape3D).
2021-08-14 03:12:13 +02:00

118 lines
4.9 KiB
C++

/*************************************************************************/
/* world_margin_shape_2d.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 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 "world_margin_shape_2d.h"
#include "core/math/geometry_2d.h"
#include "servers/physics_server_2d.h"
#include "servers/rendering_server.h"
bool WorldMarginShape2D::_edit_is_selected_on_click(const Point2 &p_point, double p_tolerance) const {
Vector2 point = get_distance() * get_normal();
Vector2 l[2][2] = { { point - get_normal().orthogonal() * 100, point + get_normal().orthogonal() * 100 }, { point, point + get_normal() * 30 } };
for (int i = 0; i < 2; i++) {
Vector2 closest = Geometry2D::get_closest_point_to_segment(p_point, l[i]);
if (p_point.distance_to(closest) < p_tolerance) {
return true;
}
}
return false;
}
void WorldMarginShape2D::_update_shape() {
Array arr;
arr.push_back(normal);
arr.push_back(distance);
PhysicsServer2D::get_singleton()->shape_set_data(get_rid(), arr);
emit_changed();
}
void WorldMarginShape2D::set_normal(const Vector2 &p_normal) {
normal = p_normal;
_update_shape();
}
void WorldMarginShape2D::set_distance(real_t p_distance) {
distance = p_distance;
_update_shape();
}
Vector2 WorldMarginShape2D::get_normal() const {
return normal;
}
real_t WorldMarginShape2D::get_distance() const {
return distance;
}
void WorldMarginShape2D::draw(const RID &p_to_rid, const Color &p_color) {
Vector2 point = get_distance() * get_normal();
Vector2 l1[2] = { point - get_normal().orthogonal() * 100, point + get_normal().orthogonal() * 100 };
RS::get_singleton()->canvas_item_add_line(p_to_rid, l1[0], l1[1], p_color, 3);
Vector2 l2[2] = { point, point + get_normal() * 30 };
RS::get_singleton()->canvas_item_add_line(p_to_rid, l2[0], l2[1], p_color, 3);
}
Rect2 WorldMarginShape2D::get_rect() const {
Vector2 point = get_distance() * get_normal();
Vector2 l1[2] = { point - get_normal().orthogonal() * 100, point + get_normal().orthogonal() * 100 };
Vector2 l2[2] = { point, point + get_normal() * 30 };
Rect2 rect;
rect.position = l1[0];
rect.expand_to(l1[1]);
rect.expand_to(l2[0]);
rect.expand_to(l2[1]);
return rect;
}
real_t WorldMarginShape2D::get_enclosing_radius() const {
return distance;
}
void WorldMarginShape2D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_normal", "normal"), &WorldMarginShape2D::set_normal);
ClassDB::bind_method(D_METHOD("get_normal"), &WorldMarginShape2D::get_normal);
ClassDB::bind_method(D_METHOD("set_distance", "distance"), &WorldMarginShape2D::set_distance);
ClassDB::bind_method(D_METHOD("get_distance"), &WorldMarginShape2D::get_distance);
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "normal"), "set_normal", "get_normal");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "distance"), "set_distance", "get_distance");
}
WorldMarginShape2D::WorldMarginShape2D() :
Shape2D(PhysicsServer2D::get_singleton()->world_margin_shape_create()) {
_update_shape();
}