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annotate librpg/rpg/map-file.c @ 212:ddfe0a211169

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rpg: experiment with map teleport
author David Demelier <markand@malikania.fr>
date Mon, 16 Nov 2020 14:26:13 +0100
parents adcbb7ccfdee
children 64f24b482722
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197
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1 /*
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2 * map-file.c -- map file loader
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3 *
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4 * Copyright (c) 2020 David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #define _XOPEN_SOURCE 700
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20 #include <assert.h>
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21 #include <errno.h>
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22 #include <libgen.h>
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23 #include <limits.h>
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24 #include <stddef.h>
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25 #include <stdio.h>
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26 #include <stdlib.h>
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27 #include <string.h>
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28
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29 #include <core/alloc.h>
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30 #include <core/error.h>
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31 #include <core/image.h>
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32 #include <core/trace.h>
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33
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34 #include "map-file.h"
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35
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36 /* Create %<v>c string literal for scanf */
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37 #define MAX_F(v) MAX_F_(v)
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38 #define MAX_F_(v) "%" #v "c"
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39
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40 struct parser {
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41 struct map_file *mf; /* Map loader. */
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42 struct map *map; /* Map object to fill. */
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43 FILE *fp; /* Map file pointer. */
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44 char basedir[PATH_MAX]; /* Parent map directory */
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45 };
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46
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47 static int
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48 tiledef_cmp(const void *d1, const void *d2)
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49 {
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50 const struct map_tiledef *mtd1 = d1;
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51 const struct map_tiledef *mtd2 = d2;
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52
211
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53 if (mtd1->id < mtd2->id)
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54 return -1;
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55 if (mtd1->id > mtd2->id)
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56 return 1;
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57
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58 return 0;
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59 }
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60
197
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61 static bool
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62 parse_tiles(struct parser *ps, const char *layer_name)
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63 {
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64 enum map_layer_type layer_type;
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65 size_t amount, current;
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66
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67 if (strcmp(layer_name, "background") == 0)
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68 layer_type = MAP_LAYER_TYPE_BACKGROUND;
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69 else if (strcmp(layer_name, "foreground") == 0)
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70 layer_type = MAP_LAYER_TYPE_FOREGROUND;
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71 else
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72 return errorf("invalid layer type: %s", layer_name);
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73
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74 amount = ps->map->w * ps->map->h;
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75 current = 0;
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76
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77 /*
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78 * The next line after a layer declaration is a list of plain integer
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79 * that fill the layer tiles.
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80 */
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81 if (!(ps->mf->layers[layer_type].tiles = alloc_zero(amount, sizeof (unsigned short))))
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82 return false;
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83
210
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84 for (int tile; fscanf(ps->fp, "%d\n", &tile) && current < amount; ++current)
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85 ps->mf->layers[layer_type].tiles[current] = tile;
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86
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87 ps->map->layers[layer_type].tiles = ps->mf->layers[layer_type].tiles;
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88
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89 return true;
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90 }
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91
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92 static bool
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93 parse_actions(struct parser *ps)
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94 {
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95 char exec[128 + 1];
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96 int x = 0, y = 0;
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97 unsigned int w = 0, h = 0;
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98
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99 while (fscanf(ps->fp, "%d|%d|%u|%u|%128[^\n]\n", &x, &y, &w, &h, exec) == 5) {
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100 struct action *act;
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101
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102 if (!ps->mf->load_action) {
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103 tracef("ignoring action %d,%d,%u,%u,%s", x, y, w, h, exec);
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104 continue;
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105 }
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106
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107 if ((act = ps->mf->load_action(ps->map, x, y, w, h, exec)))
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108 action_stack_add(&ps->map->actions, act);
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109 }
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110
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111 return true;
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112 }
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113
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114 static bool
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115 parse_layer(struct parser *ps, const char *line)
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116 {
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117 char layer_name[32 + 1] = {0};
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118
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119 /* Check if weight/height has been specified. */
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120 if (ps->map->w == 0 || ps->map->h == 0)
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121 return errorf("missing map dimensions before layer");
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122
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123 /* Determine layer type. */
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124 if (sscanf(line, "layer|%32s", layer_name) <= 0)
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125 return errorf("missing layer type definition");
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126
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127 if (strcmp(layer_name, "actions") == 0)
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128 return parse_actions(ps);
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129
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130 return parse_tiles(ps, layer_name);
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131 }
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132
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133 static bool
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134 parse_tileset(struct parser *ps, const char *line)
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135 {
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136 char filename[FILENAME_MAX + 1] = {0};
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137 char filepath[PATH_MAX];
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138 int ret;
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139
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
140 if (ps->map->tile_w == 0 || ps->map->tile_h == 0)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
141 return errorf("missing map dimensions before tileset");
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
142
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
143 if ((ret = sscanf(line, "tileset|" MAX_F(FILENAME_MAX), filename)) == 1) {
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
144 snprintf(filepath, sizeof (filepath), "%s/%s", ps->basedir, filename);
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
145
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
146 if (!image_open(&ps->mf->tileset, filepath))
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
147 return false;
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
148 }
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
149
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
150 /* Initialize sprite. */
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
151 sprite_init(&ps->mf->sprite, &ps->mf->tileset, ps->map->tile_w, ps->map->tile_h);
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
152 ps->map->tileset = &ps->mf->sprite;
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
153
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
154 return true;
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
155 }
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
156
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
157 static bool
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
158 parse_title(struct parser *ps, const char *line)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
159 {
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
160 if (sscanf(line, "title|" MAX_F(MAP_FILE_TITLE_MAX), ps->mf->title) != 1 || strlen(ps->mf->title) == 0)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
161 return errorf("null map title");
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
162
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
163 ps->map->title = ps->mf->title;
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
164
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
165 return true;
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
166 }
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
167
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
168 static bool
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
169 parse_width(struct parser *ps, const char *line)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
170 {
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
171 if (sscanf(line, "width|%u", &ps->map->w) != 1 || ps->map->w == 0)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
172 return errorf("null map width");
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
173
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
174 return true;
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
175 }
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
176
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
177 static bool
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
178 parse_height(struct parser *ps, const char *line)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
179 {
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
180 if (sscanf(line, "height|%u", &ps->map->h) != 1 || ps->map->h == 0)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
181 return errorf("null map height");
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
182
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
183 return true;
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
184 }
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
185
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
186 static bool
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
187 parse_tilewidth(struct parser *ps, const char *line)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
188 {
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
189 if (sscanf(line, "tilewidth|%hu", &ps->map->tile_w) != 1 || ps->map->tile_w == 0)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
190 return errorf("null map tile width");
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
191 if (ps->map->w == 0)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
192 return errorf("missing map width before tilewidth");
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
193
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
194 ps->map->real_w = ps->map->w * ps->map->tile_w;
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
195
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
196 return true;
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
197 }
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
198
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
199 static bool
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
200 parse_tileheight(struct parser *ps, const char *line)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
201 {
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
202 if (sscanf(line, "tileheight|%hu", &ps->map->tile_h) != 1 || ps->map->tile_h == 0)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
203 return errorf("null map tile height");
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
204 if (ps->map->h == 0)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
205 return errorf("missing map height before tileheight");
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
206
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
207 ps->map->real_h = ps->map->h * ps->map->tile_h;
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
208
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
209 return true;
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
210 }
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
211
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
212 static bool
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
213 parse_origin(struct parser *ps, const char *line)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
214 {
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
215 if (sscanf(line, "origin|%d|%d", &ps->map->origin_x, &ps->map->origin_y) != 2)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
216 return errorf("invalid origin");
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
217
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
218 /*
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
219 * We adjust the player position here because it should not be done in
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
220 * the map_init function. This is because the player should not move
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
221 * magically each time we re-use the map (saving position).
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
222 */
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
223 ps->map->player_x = ps->map->origin_x;
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
224 ps->map->player_y = ps->map->origin_y;
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
225
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
226 return true;
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
227 }
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
228
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
229 static bool
211
adcbb7ccfdee rpg: some refactoring
David Demelier <markand@malikania.fr>
parents: 210
diff changeset
230 parse_tiledefs(struct parser *ps, const char *line)
210
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 197
diff changeset
231 {
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 197
diff changeset
232 (void)line;
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 197
diff changeset
233
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 197
diff changeset
234 short x, y;
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 197
diff changeset
235 unsigned short id, w, h;
211
adcbb7ccfdee rpg: some refactoring
David Demelier <markand@malikania.fr>
parents: 210
diff changeset
236 struct map_tiledef *tiledefs = NULL;
adcbb7ccfdee rpg: some refactoring
David Demelier <markand@malikania.fr>
parents: 210
diff changeset
237 size_t tiledefsz = 0;
210
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 197
diff changeset
238
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 197
diff changeset
239 while (fscanf(ps->fp, "%hu|%hd|%hd|%hu|%hu\n", &id, &x, &y, &w, &h) == 5) {
211
adcbb7ccfdee rpg: some refactoring
David Demelier <markand@malikania.fr>
parents: 210
diff changeset
240 tiledefs = allocator.realloc(tiledefs, ++tiledefsz * sizeof (*tiledefs));
adcbb7ccfdee rpg: some refactoring
David Demelier <markand@malikania.fr>
parents: 210
diff changeset
241 tiledefs[tiledefsz - 1].id = id;
adcbb7ccfdee rpg: some refactoring
David Demelier <markand@malikania.fr>
parents: 210
diff changeset
242 tiledefs[tiledefsz - 1].x = x;
adcbb7ccfdee rpg: some refactoring
David Demelier <markand@malikania.fr>
parents: 210
diff changeset
243 tiledefs[tiledefsz - 1].y = y;
adcbb7ccfdee rpg: some refactoring
David Demelier <markand@malikania.fr>
parents: 210
diff changeset
244 tiledefs[tiledefsz - 1].w = w;
adcbb7ccfdee rpg: some refactoring
David Demelier <markand@malikania.fr>
parents: 210
diff changeset
245 tiledefs[tiledefsz - 1].h = h;
210
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 197
diff changeset
246 }
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 197
diff changeset
247
211
adcbb7ccfdee rpg: some refactoring
David Demelier <markand@malikania.fr>
parents: 210
diff changeset
248 qsort(tiledefs, tiledefsz, sizeof (*tiledefs), tiledef_cmp);
adcbb7ccfdee rpg: some refactoring
David Demelier <markand@malikania.fr>
parents: 210
diff changeset
249 ps->map->tiledefs = ps->mf->tiledefs = tiledefs;
adcbb7ccfdee rpg: some refactoring
David Demelier <markand@malikania.fr>
parents: 210
diff changeset
250 ps->map->tiledefsz = tiledefsz;
210
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 197
diff changeset
251
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 197
diff changeset
252 return true;
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 197
diff changeset
253 }
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 197
diff changeset
254
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 197
diff changeset
255 static bool
197
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
256 parse_line(struct parser *ps, const char *line)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
257 {
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
258 static const struct {
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
259 const char *property;
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
260 bool (*read)(struct parser *, const char *);
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
261 } props[] = {
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
262 { "title", parse_title },
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
263 { "width", parse_width },
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
264 { "height", parse_height },
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
265 { "tilewidth", parse_tilewidth },
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
266 { "tileheight", parse_tileheight },
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
267 { "tileset", parse_tileset },
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
268 { "origin", parse_origin },
210
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 197
diff changeset
269 { "layer", parse_layer },
211
adcbb7ccfdee rpg: some refactoring
David Demelier <markand@malikania.fr>
parents: 210
diff changeset
270 { "tiledefs", parse_tiledefs }
197
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
271 };
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
272
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
273 for (size_t i = 0; i < NELEM(props); ++i)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
274 if (strncmp(line, props[i].property, strlen(props[i].property)) == 0)
852d0b7817ce rpg: map, extreme cleanup, closes #2508 @4h
David Demelier <markand@malikania.fr>
parents:
diff changeset
275 return props[i].read(ps, line);
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276
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277 return true;
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278 }
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279
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280 static bool
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281 parse(struct map_file *loader, const char *path, struct map *map, FILE *fp)
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282 {
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283 char line[1024];
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284 struct parser ps = {
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285 .mf = loader,
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286 .map = map,
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287 .fp = fp
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288 };
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289
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290 /*
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291 * Even though dirname(3) usually not modify the path as argument it may
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292 * do according to POSIX specification, as such we still need a
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293 * temporary buffer.
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294 */
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295 snprintf(ps.basedir, sizeof (ps.basedir), "%s", path);
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296 snprintf(ps.basedir, sizeof (ps.basedir), "%s", dirname(ps.basedir));
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297
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298 while (fgets(line, sizeof (line), fp)) {
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299 /* Remove \n if any */
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300 line[strcspn(line, "\n")] = '\0';
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301
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302 if (!parse_line(&ps, line))
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303 return false;
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304 }
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305
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306 return true;
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307 }
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308
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309 static bool
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310 check(struct map *map)
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311 {
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312 /*
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313 * Check that we have parsed every required components.
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314 */
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David Demelier <markand@malikania.fr>
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315 if (!map->title)
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316 return errorf("missing title");
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317
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318 /*
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319 * We don't need to check width/height because parsing layers and
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320 * tilesets already check for their presence, so only check layers.
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321 */
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322 if (!map->layers[0].tiles)
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323 return errorf("missing background layer");
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324 if (!map->layers[1].tiles)
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325 return errorf("missing foreground layer");
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326 if (!sprite_ok(map->tileset))
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327 return errorf("missing tileset");
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328
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329 return true;
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330 }
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331
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332 bool
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333 map_file_open(struct map_file *file, const char *path, struct map *map)
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334 {
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335 assert(file);
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David Demelier <markand@malikania.fr>
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336 assert(path);
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David Demelier <markand@malikania.fr>
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337 assert(map);
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David Demelier <markand@malikania.fr>
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338
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David Demelier <markand@malikania.fr>
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339 FILE *fp;
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David Demelier <markand@malikania.fr>
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340 bool ret = true;
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341
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David Demelier <markand@malikania.fr>
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342 memset(map, 0, sizeof (*map));
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343
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344 if (!(fp = fopen(path, "r")))
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345 return errorf("%s", strerror(errno));
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346
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347 if (!(ret = parse(file, path, map, fp)) || !(ret = check(map))) {
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348 map_finish(map);
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349 map_file_finish(file);
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350 }
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351
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352 fclose(fp);
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353
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354 return ret;
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David Demelier <markand@malikania.fr>
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355 }
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356
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David Demelier <markand@malikania.fr>
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357 void
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358 map_file_finish(struct map_file *file)
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diff changeset
359 {
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David Demelier <markand@malikania.fr>
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diff changeset
360 assert(file);
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David Demelier <markand@malikania.fr>
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diff changeset
361
211
adcbb7ccfdee rpg: some refactoring
David Demelier <markand@malikania.fr>
parents: 210
diff changeset
362 free(file->tiledefs);
197
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David Demelier <markand@malikania.fr>
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363 texture_finish(&file->tileset);
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David Demelier <markand@malikania.fr>
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diff changeset
364 memset(file, 0, sizeof (*file));
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David Demelier <markand@malikania.fr>
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365 }