McRogueFace/deps_windows/libtcod-1.23.1-x86_64-msvc/include/libtcod/pathfinder.h

85 lines
3.2 KiB
C

/* BSD 3-Clause License
*
* Copyright © 2008-2022, Jice and the libtcod contributors.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TCOD_PATHFINDER_H
#define TCOD_PATHFINDER_H
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include "heapq.h"
#include "portability.h"
#define TCOD_PATHFINDER_MAX_DIMENSIONS 4
struct TCOD_ArrayData {
int8_t ndim;
int int_type;
size_t shape[TCOD_PATHFINDER_MAX_DIMENSIONS + 1];
size_t strides[TCOD_PATHFINDER_MAX_DIMENSIONS + 1];
unsigned char* data;
};
struct TCOD_BasicGraph2D {
struct TCOD_ArrayData cost;
int cardinal;
int diagonal;
};
struct TCOD_Pathfinder {
int8_t ndim;
size_t shape[TCOD_PATHFINDER_MAX_DIMENSIONS];
bool owns_distance;
bool owns_graph;
bool owns_traversal;
struct TCOD_ArrayData distance;
struct TCOD_BasicGraph2D graph;
struct TCOD_ArrayData traversal;
struct TCOD_Heap heap;
};
TCODLIB_CAPI struct TCOD_Pathfinder* TCOD_pf_new(int ndim, const size_t* shape);
TCODLIB_CAPI void TCOD_pf_delete(struct TCOD_Pathfinder* path);
TCODLIB_CAPI void TCOD_pf_set_distance_pointer(
struct TCOD_Pathfinder* path, void* data, int int_type, const size_t* strides);
TCODLIB_CAPI void TCOD_pf_set_graph2d_pointer(
struct TCOD_Pathfinder* path, void* data, int int_type, const size_t* strides, int cardinal, int diagonal);
TCODLIB_CAPI void TCOD_pf_set_traversal_pointer(
struct TCOD_Pathfinder* path, void* data, int int_type, const size_t* strides);
TCODLIB_CAPI int TCOD_pf_recompile(struct TCOD_Pathfinder* path);
TCODLIB_CAPI int TCOD_pf_compute(struct TCOD_Pathfinder* path);
TCODLIB_CAPI int TCOD_pf_compute_step(struct TCOD_Pathfinder* path);
#endif // TCOD_PATHFINDER_H