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Generate info file

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This commit is contained in:
Matthias Schiffer 2015-02-02 05:13:07 +01:00
parent 89baed4ed5
commit fd4ce45885
1 changed files with 48 additions and 0 deletions
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48
src/MinedMap.cpp
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@ -153,6 +153,52 @@ static bool checkFilename(const char *name, int *x, int *z) {
}
static void writeInfo(const std::string &filename, const std::set<std::pair<int, int>> &regions, int minX, int maxX, int minZ, int maxZ) {
const std::string tmpfile = filename + ".tmp";
FILE *f = fopen(tmpfile.c_str(), "w");
if (!f) {
std::fprintf(stderr, "Unable to open %s: %s\n", tmpfile.c_str(), std::strerror(errno));
return;
}
fprintf(f, "{\n");
fprintf(f, " \"info\" : {\n");
fprintf(f, " \"minX\" : %i,\n", minX);
fprintf(f, " \"maxX\" : %i,\n", maxX);
fprintf(f, " \"minZ\" : %i,\n", minZ);
fprintf(f, " \"maxZ\" : %i\n", maxZ);
fprintf(f, " },\n");
fprintf(f, " \"regions\" : [\n");
for (int z = minZ; z <= maxZ; z++) {
fprintf(f, " [");
for (int x = minX; x <= maxX; x++) {
fprintf(f, "%s", regions.count(std::make_pair(x, z)) ? "true" : "false");
if (x < maxX)
fprintf(f, ", ");
}
if (z < maxZ)
fprintf(f, "],\n");
else
fprintf(f, "]\n");
}
fprintf(f, " ]\n");
fprintf(f, "}\n");
fclose(f);
if (std::rename(tmpfile.c_str(), filename.c_str()) < 0) {
std::fprintf(stderr, "Unable to save %s: %s\n", filename.c_str(), std::strerror(errno));
unlink(tmpfile.c_str());
}
}
int main(int argc, char *argv[]) {
if (argc < 3) {
std::fprintf(stderr, "Usage: %s <data directory> <output directory>\n", argv[0]);
@ -192,5 +238,7 @@ int main(int argc, char *argv[]) {
closedir(dir);
writeInfo(outputdir + "/info.json", regions, minX, maxX, minZ, maxZ);
return 0;
}