1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
// For more information, see LICENCE in the main folder
#ifndef _PATH_H_
#define _PATH_H_
#include "map.h" // enum cell_chk
#define MAX_WALKPATH 32
struct walkpath_data {
unsigned char path_len,path_pos;
unsigned char path[MAX_WALKPATH];
};
struct shootpath_data {
int rx,ry,len;
int x[MAX_WALKPATH];
int y[MAX_WALKPATH];
};
// calculates destination cell for knockback
int path_blownpos(int m,int x0,int y0,int dx,int dy,int count);
// tries to find a walkable path
bool path_search(struct walkpath_data *wpd,int m,int x0,int y0,int x1,int y1,int flag,cell_chk cell);
// tries to find a shootable path
bool path_search_long(struct shootpath_data *spd,int m,int x0,int y0,int x1,int y1,cell_chk cell);
// distance related functions
int check_distance(int dx, int dy, int distance);
#define check_distance_bl(bl1, bl2, distance) check_distance((bl1)->x - (bl2)->x, (bl1)->y - (bl2)->y, distance)
#define check_distance_blxy(bl, x1, y1, distance) check_distance((bl)->x-(x1), (bl)->y-(y1), distance)
#define check_distance_xy(x0, y0, x1, y1, distance) check_distance((x0)-(x1), (y0)-(y1), distance)
unsigned int distance(int dx, int dy);
#define distance_bl(bl1, bl2) distance((bl1)->x - (bl2)->x, (bl1)->y - (bl2)->y)
#define distance_blxy(bl, x1, y1) distance((bl)->x-(x1), (bl)->y-(y1))
#define distance_xy(x0, y0, x1, y1) distance((x0)-(x1), (y0)-(y1))
#endif /* _PATH_H_ */
|
