1 | // |
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2 | // Deus Hax (working title) |
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3 | // Copyright (c) 2010 Sam Hocevar <sam@hocevar.net> |
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4 | // |
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5 | |
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6 | #if defined HAVE_CONFIG_H |
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7 | # include "config.h" |
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8 | #endif |
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9 | |
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10 | #include <cstdio> |
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11 | #include <cstring> |
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12 | #include <cstdlib> |
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13 | #include <ctype.h> |
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14 | |
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15 | #include "map.h" |
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16 | #include "layer.h" |
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17 | #include "tiler.h" |
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18 | |
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19 | /* |
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20 | * Map implementation class |
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21 | */ |
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22 | |
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23 | class MapData |
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24 | { |
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25 | friend class Map; |
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26 | |
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27 | static int const MAX_TILERS = 128; |
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28 | |
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29 | private: |
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30 | int tilers[MAX_TILERS]; |
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31 | int ntilers; |
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32 | |
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33 | Layer **layers; |
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34 | int nlayers; |
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35 | |
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36 | int width, height; |
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37 | }; |
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38 | |
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39 | /* |
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40 | * Public Map class |
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41 | */ |
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42 | |
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43 | Map::Map(char const *path) |
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44 | { |
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45 | data = new MapData(); |
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46 | data->ntilers = 0; |
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47 | data->layers = NULL; |
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48 | data->nlayers = 0; |
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49 | data->width = 0; |
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50 | data->height = 0; |
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51 | |
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52 | char tmp[BUFSIZ]; |
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53 | int gids[MapData::MAX_TILERS]; |
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54 | uint32_t *tiles = NULL; |
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55 | int level = 0, orientation = 0, ntiles = 0; |
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56 | |
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57 | FILE *fp = fopen(path, "r"); |
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58 | |
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59 | if (!fp) |
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60 | return; |
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61 | |
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62 | while (!feof(fp)) |
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63 | { |
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64 | char str[1024]; |
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65 | int i, j, k; |
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66 | char a, b; |
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67 | |
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68 | /* Read a line, then decide what to do with it. */ |
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69 | fgets(tmp, BUFSIZ, fp); |
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70 | |
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71 | if (tiles && !strchr(tmp, '<')) |
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72 | { |
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73 | /* We are in the process of reading layer data. Only stop |
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74 | * when we have read the expected number of tiles. */ |
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75 | char const *parser = tmp; |
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76 | while (ntiles < data->width * data->height) |
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77 | { |
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78 | uint32_t code = 0; |
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79 | int id = atoi(parser); |
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80 | if (id) |
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81 | { |
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82 | for (int n = 0; n < data->ntilers; n++) |
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83 | { |
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84 | if (id < gids[n]) |
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85 | continue; |
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86 | if (n == data->ntilers - 1 |
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87 | || id < gids[n + 1]) |
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88 | { |
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89 | code = (data->tilers[n] << 16) | (id - gids[n]); |
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90 | break; |
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91 | } |
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92 | } |
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93 | } |
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94 | |
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95 | tiles[ntiles++] = code; |
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96 | while (isdigit(*parser)) |
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97 | parser++; |
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98 | if (*parser == ',') |
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99 | parser++; |
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100 | if (!isdigit(*parser)) |
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101 | break; |
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102 | } |
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103 | |
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104 | if (ntiles == data->width * data->height) |
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105 | { |
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106 | Layer *l = new Layer(data->width, data->height, |
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107 | level, orientation, tiles); |
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108 | data->layers[data->nlayers] = l; |
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109 | data->nlayers++; |
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110 | tiles = NULL; |
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111 | //fprintf(stderr, "new layer %ix%i\n", data->width, data->height); |
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112 | } |
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113 | } |
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114 | else if (sscanf(tmp, " <tileset firstgid=\"%i\"", &i) == 1) |
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115 | { |
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116 | /* This is a tileset description. Remember its first gid value. */ |
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117 | gids[data->ntilers] = i; |
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118 | } |
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119 | else if (sscanf(tmp, " <image source=\"%[^\"]\"", str) == 1) |
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120 | { |
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121 | /* This is a tileset image file. Associate it with firstgid. */ |
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122 | data->tilers[data->ntilers] = Tiler::Register(str); |
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123 | data->ntilers++; |
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124 | //fprintf(stderr, "new tiler %s\n", str); |
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125 | } |
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126 | else if (sscanf(tmp, " <layer name=\"%c%i%c%*[^\"]\" " |
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127 | "width=\"%i\" height=\"%i\"", &a, &i, &b, &j, &k) == 5) |
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128 | { |
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129 | /* This is a layer description. Prepare to read the data. */ |
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130 | data->layers = (Layer **)realloc(data->layers, |
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131 | sizeof(Layer **) * (data->nlayers + 1)); |
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132 | orientation = toupper(a) == 'V' ? 1 : 0; |
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133 | data->width = j; |
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134 | data->height = k; |
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135 | tiles = (uint32_t *)malloc(j * k * sizeof(uint32_t)); |
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136 | ntiles = 0; |
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137 | } |
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138 | } |
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139 | |
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140 | fclose(fp); |
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141 | } |
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142 | |
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143 | Map::~Map() |
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144 | { |
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145 | for (int i = 0; i < data->ntilers; i++) |
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146 | Tiler::Deregister(data->tilers[i]); |
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147 | for (int i = 0; i < data->nlayers; i++) |
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148 | delete data->layers[i]; |
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149 | free(data->layers); |
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150 | delete data; |
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151 | } |
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152 | |
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153 | void Map::Render(Scene *scene, int x, int y, int z) |
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154 | { |
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155 | for (int i = 0; i < data->nlayers; i++) |
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156 | data->layers[i]->Render(scene, x, y, z); |
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157 | } |
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158 | |
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159 | int Map::GetWidth() |
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160 | { |
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161 | return data->width * 32; |
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162 | } |
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163 | |
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164 | int Map::GetHeight() |
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165 | { |
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166 | return data->height * 32; |
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167 | } |
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168 | |
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