comparison: io.cpp
io.cpp
- changeset 0
- c51cce84a9ac
- child 4
- 758302636564
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| -1:000000000000 | 0:c51cce84a9ac |
|---|---|
| 1 #include <vector> | |
| 2 | |
| 3 #include "common.h" | |
| 4 #include "io.h" | |
| 5 #include "ldtypes.h" | |
| 6 #include "misc.h" | |
| 7 | |
| 8 // ============================================================================= | |
| 9 // IO_FindLoadedFile (str) | |
| 10 // | |
| 11 // Returns a pointer to the first found open file with the given name. | |
| 12 // ============================================================================= | |
| 13 OpenFile* IO_FindLoadedFile (str name) { | |
| 14 OpenFile* file; | |
| 15 | |
| 16 for (uint i = 0; i < g_LoadedFiles.size(); i++) { | |
| 17 file = g_LoadedFiles[i]; | |
| 18 if (!file->filename.icompare (name)) | |
| 19 return file; | |
| 20 } | |
| 21 | |
| 22 return NULL; | |
| 23 } | |
| 24 | |
| 25 // ============================================================================= | |
| 26 // IO_ParseLDFile (str) | |
| 27 // | |
| 28 // Opens the given file and parses the LDraw code within. | |
| 29 // ============================================================================= | |
| 30 OpenFile* IO_ParseLDFile (str path) { | |
| 31 FILE* fp = fopen (path.chars (), "r"); | |
| 32 | |
| 33 if (!fp) { | |
| 34 printf ("Couldn't open %s!\n", path.chars ()); | |
| 35 return NULL; | |
| 36 } | |
| 37 | |
| 38 OpenFile* load = new OpenFile; | |
| 39 load->filename = path; | |
| 40 | |
| 41 vector<str> lines; | |
| 42 | |
| 43 { | |
| 44 char line[1024]; | |
| 45 while (fgets (line, sizeof line, fp)) { | |
| 46 // Trim the trailing newline | |
| 47 str zLine = line; | |
| 48 while (zLine[~zLine - 1] == '\n' || zLine[~zLine - 1] == '\r') | |
| 49 zLine -= 1; | |
| 50 | |
| 51 lines.push_back (zLine); | |
| 52 } | |
| 53 } | |
| 54 | |
| 55 fclose (fp); | |
| 56 | |
| 57 for (ulong i = 0; i < lines.size(); ++i) | |
| 58 load->objects.push_back (ParseLine (lines[i])); | |
| 59 | |
| 60 g_LoadedFiles.push_back (load); | |
| 61 return g_LoadedFiles[g_LoadedFiles.size() - 1]; | |
| 62 } | |
| 63 | |
| 64 // ============================================================================= | |
| 65 // ParseLine (str) | |
| 66 // | |
| 67 // Parses a string line containing an LDraw object and returns the object parsed. | |
| 68 // ============================================================================= | |
| 69 LDObject* ParseLine (str zLine) { | |
| 70 str zNoWhitespace = zLine; | |
| 71 StripWhitespace (zNoWhitespace); | |
| 72 if (!~zNoWhitespace) { | |
| 73 // Line was empty, or only consisted of whitespace | |
| 74 return new LDEmpty; | |
| 75 } | |
| 76 | |
| 77 char c = zLine[0]; | |
| 78 vector<str> tokens = zLine / " "; | |
| 79 printf ("line: %s\n", zLine.chars()); | |
| 80 | |
| 81 switch (c - '0') { | |
| 82 case 0: | |
| 83 { | |
| 84 // Comment | |
| 85 LDComment* obj = new LDComment; | |
| 86 obj->zText = zLine.substr (1, -1); | |
| 87 printf ("\t-> comment (%s)\n", obj->zText.chars()); | |
| 88 return obj; | |
| 89 } | |
| 90 | |
| 91 case 1: | |
| 92 { | |
| 93 // Subfile | |
| 94 LDSubfile* obj = new LDSubfile; | |
| 95 obj->dColor = atoi (tokens[1]); | |
| 96 obj->vPosition = ParseVertex (zLine, 2); // 2 - 4 | |
| 97 | |
| 98 for (short i = 0; i < 9; ++i) | |
| 99 obj->faMatrix[i] = atof (tokens[i + 5]); // 5 - 13 | |
| 100 | |
| 101 obj->zFileName = tokens[14]; | |
| 102 return obj; | |
| 103 } | |
| 104 | |
| 105 case 2: | |
| 106 { | |
| 107 // Line | |
| 108 LDLine* obj = new LDLine; | |
| 109 obj->dColor = GetWordInt (zLine, 1); | |
| 110 for (short i = 0; i < 2; ++i) | |
| 111 obj->vaCoords[i] = ParseVertex (zLine, 2 + (i * 3)); // 2 - 7 | |
| 112 return obj; | |
| 113 } | |
| 114 | |
| 115 case 3: | |
| 116 { | |
| 117 // Triangle | |
| 118 LDTriangle* obj = new LDTriangle; | |
| 119 obj->dColor = GetWordInt (zLine, 1); | |
| 120 | |
| 121 for (short i = 0; i < 3; ++i) | |
| 122 obj->vaCoords[i] = ParseVertex (zLine, 2 + (i * 3)); // 2 - 10 | |
| 123 | |
| 124 return obj; | |
| 125 } | |
| 126 | |
| 127 case 4: | |
| 128 { | |
| 129 // Quadrilateral | |
| 130 LDQuad* obj = new LDQuad; | |
| 131 obj->dColor = GetWordInt (zLine, 1); | |
| 132 | |
| 133 for (short i = 0; i < 4; ++i) | |
| 134 obj->vaCoords[i] = ParseVertex (zLine, 2 + (i * 3)); // 2 - 13 | |
| 135 | |
| 136 return obj; | |
| 137 } | |
| 138 | |
| 139 case 5: | |
| 140 { | |
| 141 // Conditional line | |
| 142 LDCondLine* obj = new LDCondLine; | |
| 143 obj->dColor = GetWordInt (zLine, 1); | |
| 144 | |
| 145 for (short i = 0; i < 2; ++i) | |
| 146 obj->vaCoords[i] = ParseVertex (zLine, 2 + (i * 3)); // 2 - 7 | |
| 147 | |
| 148 for (short i = 0; i < 2; ++i) | |
| 149 obj->vaControl[i] = ParseVertex (zLine, 8 + (i * 3)); // 8 - 13 | |
| 150 return obj; | |
| 151 } | |
| 152 | |
| 153 default: | |
| 154 { | |
| 155 // Strange line we couldn't parse | |
| 156 LDGibberish* obj = new LDGibberish; | |
| 157 obj->zContent = zLine; | |
| 158 return obj; | |
| 159 } | |
| 160 } | |
| 161 } |
