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annotate mlk-map/mlk-map.c @ 592:1560ef13146c

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rpg: map support player sprite
author David Demelier <markand@malikania.fr>
date Mon, 20 Mar 2023 21:59:02 +0100
parents f271681ce015
children e070fdcc592b
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1 /*
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2 * mlk-map.c -- convert tiled tiled JSON files into custom files
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3 *
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4 * Copyright (c) 2020-2023 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 #include <assert.h>
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20 #include <limits.h>
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21 #include <stdbool.h>
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22 #include <stdio.h>
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23 #include <string.h>
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24
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25 #include <jansson.h>
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26
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27 #include <mlk/util/util.h>
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28
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29 static bool
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30 is_layer(const char *name)
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31 {
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32 return strcmp(name, "background") == 0 ||
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33 strcmp(name, "foreground") == 0 ||
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34 strcmp(name, "above") == 0 ||
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35 strcmp(name, "actions") == 0;
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36 }
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37
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38 static const json_t *
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39 find_property(const json_t *props, const char *which)
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40 {
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41 const json_t *obj, *key, *value;
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42 size_t index;
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43
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44 json_array_foreach(props, index, obj) {
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45 if (!json_is_object(obj))
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46 continue;
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47
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48 key = json_object_get(obj, "name");
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49 value = json_object_get(obj, "value");
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50
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51 if (json_is_string(key) && value && strcmp(json_string_value(key), which) == 0)
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52 return value;
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53 }
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54
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55 return NULL;
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56 }
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57
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58 static void
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59 write_player_origin(const json_t *props)
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60 {
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61 const json_t *x, *y;
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62
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63 x = find_property(props, "player-origin-x");
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64 y = find_property(props, "player-origin-y");
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65
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66 if (!x || !json_is_integer(x) ||
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67 !y || !json_is_integer(y))
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68 return;
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69
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70 printf("player-origin|%d|%d\n",
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71 (int)json_integer_value(x),
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72 (int)json_integer_value(y));
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73 }
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74
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75 static void
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76 write_player_sprite(const json_t *props)
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77 {
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78 const json_t *sprite, *w, *h;
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79
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80 sprite = find_property(props, "player-sprite");
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81 w = find_property(props, "player-sprite-w");
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82 h = find_property(props, "player-sprite-h");
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83
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84 if (!sprite || !json_is_string(sprite) ||
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85 !w || !json_is_integer(w) ||
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86 !h || !json_is_integer(h))
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87 return;
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88
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89 printf("player-sprite|%d|%d|%s\n",
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90 (int)json_integer_value(w),
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91 (int)json_integer_value(h),
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92 json_string_value(sprite)
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93 );
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94 }
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95
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96 static void
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97 write_properties(const json_t *props)
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98 {
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99 write_player_origin(props);
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100 write_player_sprite(props);
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101 }
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102
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103 static void
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104 write_dimensions(const json_t *document)
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105 {
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106 json_t *width, *height;
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107
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108 width = json_object_get(document, "width");
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109 height = json_object_get(document, "height");
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110
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111 if (!width || !json_is_integer(width))
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112 mlk_util_die("missing 'width' property\n");
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113 if (!height || !json_is_integer(height))
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114 mlk_util_die("missing 'height' property\n");
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115
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116 printf("columns|%d\n", (int)json_integer_value(width));
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117 printf("rows|%d\n", (int)json_integer_value(height));
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118 }
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119
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120 static void
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121 write_object(const json_t *object)
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122 {
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123 assert(json_is_object(object));
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124
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125 const json_t *x, *y, *width, *height, *props, *exec, *block;
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126
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127 x = json_object_get(object, "x");
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128 y = json_object_get(object, "y");
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129 width = json_object_get(object, "width");
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130 height = json_object_get(object, "height");
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131 props = json_object_get(object, "properties");
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132
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133 if (!x || !json_is_number(x))
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134 mlk_util_die("invalid 'x' property in object\n");
212
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diff changeset
135 if (!y || !json_is_number(y))
557
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diff changeset
136 mlk_util_die("invalid 'y' property in object\n");
212
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parents: 211
diff changeset
137 if (!width || !json_is_number(width))
557
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diff changeset
138 mlk_util_die("invalid 'width' property in object\n");
212
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parents: 211
diff changeset
139 if (!height || !json_is_number(height))
557
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diff changeset
140 mlk_util_die("invalid 'height' property in object\n");
25
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diff changeset
141
250
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diff changeset
142 /* This is optional and set to 0 if not present. */
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diff changeset
143 block = find_property(props, "block");
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diff changeset
144
25
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145 /* In tiled, those properties are float but we only use ints in MA */
250
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diff changeset
146 printf("%d|%d|%d|%d|%d",
212
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diff changeset
147 (int)json_integer_value(x),
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diff changeset
148 (int)json_integer_value(y),
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diff changeset
149 (int)json_integer_value(width),
250
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diff changeset
150 (int)json_integer_value(height),
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diff changeset
151 (int)json_is_true(block)
25
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diff changeset
152 );
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diff changeset
153
250
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diff changeset
154 if ((exec = find_property(props, "exec")) && json_is_string(exec))
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155 printf("|%s", json_string_value(exec));
25
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diff changeset
156
212
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diff changeset
157 printf("\n");
25
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158 }
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diff changeset
159
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diff changeset
160 static void
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161 write_layer(const json_t *layer)
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diff changeset
162 {
578
f271681ce015 mlk-map: follow conventions
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diff changeset
163 json_t *objects, *data, *name, *tile, *object;
25
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diff changeset
164 size_t index;
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165
578
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166 objects = json_object_get(layer, "objects");
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diff changeset
167 data = json_object_get(layer, "data");
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168 name = json_object_get(layer, "name");
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parents: 557
diff changeset
169
25
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diff changeset
170 if (!name || !json_is_string(name))
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diff changeset
171 mlk_util_die("invalid 'name' property in layer");
25
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172 if (!is_layer(json_string_value(name)))
557
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diff changeset
173 mlk_util_die("invalid 'name' layer: %s\n", json_string_value(name));
25
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diff changeset
174
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diff changeset
175 printf("layer|%s\n", json_string_value(name));
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diff changeset
176
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diff changeset
177 /* Only foreground/background have 'data' property */
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diff changeset
178 if (json_is_array(data)) {
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diff changeset
179 json_array_foreach(data, index, tile) {
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diff changeset
180 if (!json_is_integer(tile))
557
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diff changeset
181 mlk_util_die("invalid 'data' property in layer\n");
25
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diff changeset
182
215
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diff changeset
183 printf("%d\n", (int)json_integer_value(tile));
25
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184 }
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diff changeset
185 }
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parents: 16
diff changeset
186
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diff changeset
187 /* Only objects has 'objects' property */
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parents: 16
diff changeset
188 if (json_is_array(objects)) {
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parents: 16
diff changeset
189 json_array_foreach(objects, index, object) {
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diff changeset
190 if (!json_is_object(object))
557
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diff changeset
191 mlk_util_die("invalid 'objects' property in layer\n");
25
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diff changeset
192
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diff changeset
193 write_object(object);
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diff changeset
194 }
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diff changeset
195 }
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diff changeset
196 }
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diff changeset
197
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diff changeset
198 static void
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diff changeset
199 write_layers(const json_t *layers)
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diff changeset
200 {
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diff changeset
201 size_t index;
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diff changeset
202 json_t *layer;
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diff changeset
203
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diff changeset
204 if (!layers)
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diff changeset
205 return;
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diff changeset
206
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diff changeset
207 json_array_foreach(layers, index, layer) {
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parents: 16
diff changeset
208 if (!json_is_object(layer))
557
944798a59b8a util: introduce mlk_util_die
David Demelier <markand@malikania.fr>
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diff changeset
209 mlk_util_die("layer is not an object\n");
25
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diff changeset
210
0d5ecefcccd3 molko-map: reimplement using JSON as it is supported by tiled, closes #2448 @4h
David Demelier <markand@malikania.fr>
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diff changeset
211 write_layer(layer);
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parents: 16
diff changeset
212 }
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diff changeset
213 }
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parents: 16
diff changeset
214
0d5ecefcccd3 molko-map: reimplement using JSON as it is supported by tiled, closes #2448 @4h
David Demelier <markand@malikania.fr>
parents: 16
diff changeset
215 static void
215
64f24b482722 rpg: implement tilesets separately, closes #2515 @4h
David Demelier <markand@malikania.fr>
parents: 212
diff changeset
216 write_tileset(const json_t *tilesets)
210
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 116
diff changeset
217 {
554
cdbc13ceff85 rpg: do the same for map
David Demelier <markand@malikania.fr>
parents: 524
diff changeset
218 char path[MLK_PATH_MAX], *ext;
215
64f24b482722 rpg: implement tilesets separately, closes #2515 @4h
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diff changeset
219 const json_t *tileset, *source;
210
70e6ed74940d rpg: attempt of collide detection in map
David Demelier <markand@malikania.fr>
parents: 116
diff changeset
220
215
64f24b482722 rpg: implement tilesets separately, closes #2515 @4h
David Demelier <markand@malikania.fr>
parents: 212
diff changeset
221 if (json_array_size(tilesets) != 1)
557
944798a59b8a util: introduce mlk_util_die
David Demelier <markand@malikania.fr>
parents: 554
diff changeset
222 mlk_util_die("map must contain exactly one tileset");
210
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David Demelier <markand@malikania.fr>
parents: 116
diff changeset
223
215
64f24b482722 rpg: implement tilesets separately, closes #2515 @4h
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parents: 212
diff changeset
224 tileset = json_array_get(tilesets, 0);
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diff changeset
225 source = json_object_get(tileset, "source");
210
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diff changeset
226
215
64f24b482722 rpg: implement tilesets separately, closes #2515 @4h
David Demelier <markand@malikania.fr>
parents: 212
diff changeset
227 if (!json_is_string(source))
557
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diff changeset
228 mlk_util_die("invalid 'source' property in tileset\n");
210
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parents: 116
diff changeset
229
215
64f24b482722 rpg: implement tilesets separately, closes #2515 @4h
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diff changeset
230 /* We need to replace the .json extension to .tileset. */
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parents: 212
diff changeset
231 snprintf(path, sizeof (path), "%s", json_string_value(source));
25
0d5ecefcccd3 molko-map: reimplement using JSON as it is supported by tiled, closes #2448 @4h
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diff changeset
232
554
cdbc13ceff85 rpg: do the same for map
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parents: 524
diff changeset
233 if (!(ext = strstr(path, ".json")))
557
944798a59b8a util: introduce mlk_util_die
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parents: 554
diff changeset
234 mlk_util_die("could not determine tileset extension");
25
0d5ecefcccd3 molko-map: reimplement using JSON as it is supported by tiled, closes #2448 @4h
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diff changeset
235
215
64f24b482722 rpg: implement tilesets separately, closes #2515 @4h
David Demelier <markand@malikania.fr>
parents: 212
diff changeset
236 *ext = '\0';
25
0d5ecefcccd3 molko-map: reimplement using JSON as it is supported by tiled, closes #2448 @4h
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parents: 16
diff changeset
237
554
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diff changeset
238 printf("tileset|%s.tileset\n", path);
25
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diff changeset
239 }
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parents: 16
diff changeset
240
16
621c815c9509 tools: implement basic molko-map stub, continue #2448
David Demelier <markand@malikania.fr>
parents:
diff changeset
241 int
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David Demelier <markand@malikania.fr>
parents:
diff changeset
242 main(void)
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David Demelier <markand@malikania.fr>
parents:
diff changeset
243 {
25
0d5ecefcccd3 molko-map: reimplement using JSON as it is supported by tiled, closes #2448 @4h
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diff changeset
244 json_t *document;
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parents: 16
diff changeset
245 json_error_t error;
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diff changeset
246
0d5ecefcccd3 molko-map: reimplement using JSON as it is supported by tiled, closes #2448 @4h
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diff changeset
247 document = json_loadf(stdin, 0, &error);
0d5ecefcccd3 molko-map: reimplement using JSON as it is supported by tiled, closes #2448 @4h
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diff changeset
248
0d5ecefcccd3 molko-map: reimplement using JSON as it is supported by tiled, closes #2448 @4h
David Demelier <markand@malikania.fr>
parents: 16
diff changeset
249 if (!document)
557
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David Demelier <markand@malikania.fr>
parents: 554
diff changeset
250 mlk_util_die("%d:%d: %s\n", error.line, error.column, error.text);
16
621c815c9509 tools: implement basic molko-map stub, continue #2448
David Demelier <markand@malikania.fr>
parents:
diff changeset
251
25
0d5ecefcccd3 molko-map: reimplement using JSON as it is supported by tiled, closes #2448 @4h
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parents: 16
diff changeset
252 write_properties(json_object_get(document, "properties"));
215
64f24b482722 rpg: implement tilesets separately, closes #2515 @4h
David Demelier <markand@malikania.fr>
parents: 212
diff changeset
253 write_dimensions(document);
25
0d5ecefcccd3 molko-map: reimplement using JSON as it is supported by tiled, closes #2448 @4h
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diff changeset
254 write_layers(json_object_get(document, "layers"));
215
64f24b482722 rpg: implement tilesets separately, closes #2515 @4h
David Demelier <markand@malikania.fr>
parents: 212
diff changeset
255 write_tileset(json_object_get(document, "tilesets"));
16
621c815c9509 tools: implement basic molko-map stub, continue #2448
David Demelier <markand@malikania.fr>
parents:
diff changeset
256
25
0d5ecefcccd3 molko-map: reimplement using JSON as it is supported by tiled, closes #2448 @4h
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diff changeset
257 json_decref(document);
16
621c815c9509 tools: implement basic molko-map stub, continue #2448
David Demelier <markand@malikania.fr>
parents:
diff changeset
258 }