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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
// For more information, see LICENCE in the main folder
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <malloc.h>
#ifndef _WIN32
#include <unistd.h>
#endif
#include "grfio.h"
char grf_list_file[256] = "tools/mapcache/grf_files.txt";
char map_list_file[256] = "tools/mapcache/map_list.txt";
char map_cache_file[256] = "db/map_cache.dat";
#define MAP_NAME_LENGTH 16
#define NO_WATER 1000000
// Used internally, this structure contains the physical map cells
struct map_data {
short xs;
short ys;
unsigned char *cells;
};
// This is the main header found at the very beginning of the file
unsigned short map_count;
// This is the header appended before every compressed map cells info
struct map_cache_info {
char name[MAP_NAME_LENGTH];
unsigned short index;
short xs;
short ys;
long len;
};
FILE *map_cache_fp;
int filesize;
// Read map from GRF's GAT and RSW files
int read_map(char *name, struct map_data *m)
{
char filename[256];
char *gat, *rsw;
int water_height;
int x, y, xs, ys;
struct gat_cell {
float height[4];
int type;
} *p = NULL;
// Open map GAT
sprintf(filename,"data\\%s.gat", name);
gat = (char *)grfio_read(filename);
if (gat == NULL)
return 0;
// Open map RSW
sprintf(filename,"data\\%s.rsw", name);
rsw = (char *)grfio_read(filename);
// Read water height
if (rsw) {
float temp = *(float*)(rsw+166);
water_height = (int)temp;
free(rsw);
} else
water_height = NO_WATER;
// Read map size and allocate needed memory
xs = m->xs = *(int*)(gat+6);
ys = m->ys = *(int*)(gat+10);
m->cells = (unsigned char *)malloc(xs*ys);
// Set cell properties
for (y = 0; y < ys; y++) {
p = (struct gat_cell*)(gat+14+y*xs*20);
for (x = 0; x < xs; x++) {
if (water_height != NO_WATER && p->type == 0 && (p->height[0] > water_height || p->height[1] > water_height || p->height[2] > water_height || p->height[3] > water_height))
m->cells[x+y*xs] = 3; // Cell is 0 (walkable) but under water level, set to 3 (walkable water)
else
m->cells[x+y*xs] = p->type;
p++;
}
}
free(gat);
return 1;
}
void cache_map(char *name, unsigned short index, struct map_data *m)
{
struct map_cache_info info;
unsigned long len;
char *write_buf;
// Create an output buffer twice as big as the uncompressed map... this way we're sure it fits
len = m->xs*m->ys*2;
write_buf = (char *)malloc(len);
// Compress the cells and get the compressed length
encode_zip((unsigned char *)write_buf, &len, m->cells, m->xs*m->ys);
// Fill the map header
strncpy(info.name, name, MAP_NAME_LENGTH);
info.index = index;
info.xs = m->xs;
info.ys = m->ys;
info.len = len;
// Append map header then compressed cells at the end of the file
fseek(map_cache_fp, filesize, SEEK_SET);
fwrite(&info, sizeof(struct map_cache_info), 1, map_cache_fp);
fwrite(write_buf, 1, len, map_cache_fp);
map_count++;
filesize += sizeof(struct map_cache_info) + len;
free(write_buf);
free(m->cells);
return;
}
int main(int argc, char *argv[])
{
FILE *list;
char line[1024];
struct map_data map;
char name[MAP_NAME_LENGTH];
unsigned short index = 1;
if(argc > 1)
strcpy(grf_list_file, argv[1]);
if(argc > 2)
strcpy(map_list_file, argv[2]);
if(argc > 3)
strcpy(map_cache_file, argv[3]);
printf("Initializing grfio with %s\n", grf_list_file);
grfio_init(grf_list_file);
printf("Opening map cache: %s\n", map_cache_file);
if(!(map_cache_fp = fopen(map_cache_file, "wb"))) {
printf("Failure when opening map cache file %s\n", map_cache_file);
exit(1);
}
printf("Opening map list: %s\n", map_list_file);
if(!(list = fopen(map_list_file, "r"))) {
printf("Failure when opening maps list file %s\n", map_list_file);
exit(1);
}
// Initialize the main header
map_count = 0;
filesize = sizeof(map_count);
// Read and process the map list
while(fgets(line, 1020, list)){
if(line[0] == '/' && line[1] == '/')
continue;
if(sscanf(line, "%16s %hu", name, &index) > 0) { // No defines in strings, 16 is hardcoded here
printf("Index %d : %s\n", index, name);
if(read_map(name, &map))
cache_map(name, index, &map);
else
printf("Map file not found in GRF\n");
// If the 2nd argument is omitted at next line, we'll keep last used index + 1
index++;
} else
printf("Skipping incorrect line\n");
}
printf("Closing map list: %s\n", map_list_file);
fclose(list);
printf("Closing map cache: %s\n", map_cache_file);
// Write the main header and close the map cache
fseek(map_cache_fp, 0, SEEK_SET);
fwrite(&map_count, sizeof(map_count), 1, map_cache_fp);
fclose(map_cache_fp);
printf("Finalizing grfio\n");
grfio_final();
printf("%d maps cached\n", map_count);
return 0;
}
|
