mirror of
https://github.com/godotengine/godot.git
synced 2025-10-31 13:41:03 +00:00
98 lines
3.6 KiB
C++
98 lines
3.6 KiB
C++
/**************************************************************************/
|
|
/* 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
|