/**************************************************************************/ /* polygon_path_finder.h */ /**************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /**************************************************************************/ /* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ /* */ /* 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. */ /**************************************************************************/ #ifndef POLYGON_PATH_FINDER_H #define POLYGON_PATH_FINDER_H #include "core/io/resource.h" class PolygonPathFinder : public Resource { GDCLASS(PolygonPathFinder, Resource); struct Point { Vector2 pos; HashSet<int> connections; float distance = 0.0; float penalty = 0.0; int prev = 0; }; union Edge { struct { int32_t points[2]; }; uint64_t key = 0; _FORCE_INLINE_ bool operator==(const Edge &p_edge) const { return key == p_edge.key; } _FORCE_INLINE_ static uint32_t hash(const Edge &p_edge) { return hash_one_uint64(p_edge.key); } Edge(int a = 0, int b = 0) { if (a > b) { SWAP(a, b); } points[0] = a; points[1] = b; } }; Vector2 outside_point; Rect2 bounds; Vector<Point> points; HashSet<Edge, Edge> edges; bool _is_point_inside(const Vector2 &p_point) const; void _set_data(const Dictionary &p_data); Dictionary _get_data() const; protected: static void _bind_methods(); public: void setup(const Vector<Vector2> &p_points, const Vector<int> &p_connections); Vector<Vector2> find_path(const Vector2 &p_from, const Vector2 &p_to); void set_point_penalty(int p_point, float p_penalty); float get_point_penalty(int p_point) const; bool is_point_inside(const Vector2 &p_point) const; Vector2 get_closest_point(const Vector2 &p_point) const; Vector<Vector2> get_intersections(const Vector2 &p_from, const Vector2 &p_to) const; Rect2 get_bounds() const; PolygonPathFinder(); }; #endif // POLYGON_PATH_FINDER_H