minetestmapper/mapper.cpp

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#include <cstdio>
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#include <cstdlib>
#include <cstring>
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#include <getopt.h>
#include <fstream>
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#include <iostream>
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#include <utility>
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#include <string>
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#include <sstream>
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#include <stdexcept>
#include "cmake_config.h"
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#include "TileGenerator.h"
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static void usage()
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{
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const std::pair<const char*, const char*> options[] = {
{"-i/--input", "<world_path>"},
{"-o/--output", "<output_image.png>"},
{"--bgcolor", "<color>"},
{"--scalecolor", "<color>"},
{"--playercolor", "<color>"},
{"--origincolor", "<color>"},
{"--drawscale", ""},
{"--drawplayers", ""},
{"--draworigin", ""},
{"--drawalpha", ""},
{"--noshading", ""},
{"--noemptyimage", ""},
{"--min-y", "<y>"},
{"--max-y", "<y>"},
{"--backend", "<backend>"},
{"--geometry", "x:y+w+h"},
{"--extent", ""},
{"--zoom", "<zoomlevel>"},
{"--colors", "<colors.txt>"},
{"--scales", "[t][b][l][r]"},
{"--exhaustive", "never|y|full|auto"},
};
const char *top_text =
"minetestmapper -i <world_path> -o <output_image.png> [options]\n"
"Generate an overview image of a Minetest map.\n"
"\n"
"Options:\n";
const char *bottom_text =
"\n"
"Color format: hexadecimal '#RRGGBB', e.g. '#FF0000' = red\n";
printf("%s", top_text);
for (const auto &p : options)
printf(" %-18s%s\n", p.first, p.second);
printf("%s", bottom_text);
auto backends = TileGenerator::getSupportedBackends();
printf("Supported backends: ");
for (auto s : backends)
printf("%s ", s.c_str());
printf("\n");
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}
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static bool file_exists(const std::string &path)
{
std::ifstream ifs(path.c_str());
return ifs.is_open();
}
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static std::string search_colors(const std::string &worldpath)
{
if(file_exists(worldpath + "/colors.txt"))
return worldpath + "/colors.txt";
#ifndef _WIN32
char *home = std::getenv("HOME");
if(home) {
std::string check = ((std::string) home) + "/.minetest/colors.txt";
if(file_exists(check))
return check;
}
#endif
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constexpr bool sharedir_valid = !(SHAREDIR[0] == '.' || SHAREDIR[0] == '\0');
if(sharedir_valid && file_exists(SHAREDIR "/colors.txt"))
return SHAREDIR "/colors.txt";
std::cerr << "Warning: Falling back to using colors.txt from current directory." << std::endl;
return "colors.txt";
}
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int main(int argc, char *argv[])
{
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const static struct option long_options[] =
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{
{"help", no_argument, 0, 'h'},
{"input", required_argument, 0, 'i'},
{"output", required_argument, 0, 'o'},
{"bgcolor", required_argument, 0, 'b'},
{"scalecolor", required_argument, 0, 's'},
{"origincolor", required_argument, 0, 'r'},
{"playercolor", required_argument, 0, 'p'},
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{"draworigin", no_argument, 0, 'R'},
{"drawplayers", no_argument, 0, 'P'},
{"drawscale", no_argument, 0, 'S'},
{"drawalpha", no_argument, 0, 'e'},
{"noshading", no_argument, 0, 'H'},
{"backend", required_argument, 0, 'd'},
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{"geometry", required_argument, 0, 'g'},
{"extent", no_argument, 0, 'E'},
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{"min-y", required_argument, 0, 'a'},
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{"max-y", required_argument, 0, 'c'},
{"zoom", required_argument, 0, 'z'},
{"colors", required_argument, 0, 'C'},
{"scales", required_argument, 0, 'f'},
{"noemptyimage", no_argument, 0, 'n'},
{"exhaustive", required_argument, 0, 'j'},
{0, 0, 0, 0}
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};
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std::string input;
std::string output;
std::string colors = "";
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TileGenerator generator;
bool onlyPrintExtent = false;
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while (1) {
int option_index;
int c = getopt_long(argc, argv, "hi:o:", long_options, &option_index);
if (c == -1)
break; // done
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switch (c) {
case 'h':
usage();
return 0;
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break;
case 'i':
input = optarg;
break;
case 'o':
output = optarg;
break;
case 'b':
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generator.setBgColor(optarg);
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break;
case 's':
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generator.setScaleColor(optarg);
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break;
case 'r':
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generator.setOriginColor(optarg);
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break;
case 'p':
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generator.setPlayerColor(optarg);
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break;
case 'R':
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generator.setDrawOrigin(true);
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break;
case 'P':
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generator.setDrawPlayers(true);
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break;
case 'S':
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generator.setDrawScale(true);
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break;
case 'e':
generator.setDrawAlpha(true);
break;
case 'E':
onlyPrintExtent = true;
break;
case 'H':
generator.setShading(false);
break;
case 'd':
generator.setBackend(optarg);
break;
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case 'a': {
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std::istringstream iss(optarg);
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int miny;
iss >> miny;
generator.setMinY(miny);
}
break;
case 'c': {
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std::istringstream iss(optarg);
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int maxy;
iss >> maxy;
generator.setMaxY(maxy);
}
break;
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case 'g': {
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std::istringstream geometry(optarg);
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int x, y, w, h;
char c;
geometry >> x >> c >> y >> w >> h;
if (geometry.fail() || c != ':' || w < 1 || h < 1) {
usage();
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exit(1);
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}
generator.setGeometry(x, y, w, h);
}
break;
case 'f': {
uint flags = 0;
if(strchr(optarg, 't') != NULL)
flags |= SCALE_TOP;
if(strchr(optarg, 'b') != NULL)
flags |= SCALE_BOTTOM;
if(strchr(optarg, 'l') != NULL)
flags |= SCALE_LEFT;
if(strchr(optarg, 'r') != NULL)
flags |= SCALE_RIGHT;
generator.setScales(flags);
}
break;
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case 'z': {
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std::istringstream iss(optarg);
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int zoom;
iss >> zoom;
generator.setZoom(zoom);
}
break;
case 'C':
colors = optarg;
break;
case 'n':
generator.setDontWriteEmpty(true);
break;
case 'j': {
int mode;
if (!strcmp(optarg, "never"))
mode = EXH_NEVER;
else if (!strcmp(optarg, "y"))
mode = EXH_Y;
else if (!strcmp(optarg, "full"))
mode = EXH_FULL;
else
mode = EXH_AUTO;
generator.setExhaustiveSearch(mode);
}
break;
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default:
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exit(1);
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}
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}
if (input.empty() || (!onlyPrintExtent && output.empty())) {
usage();
return 0;
}
try {
if (onlyPrintExtent) {
generator.printGeometry(input);
return 0;
}
if(colors == "")
colors = search_colors(input);
generator.parseColorsFile(colors);
generator.generate(input, output);
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} catch(std::runtime_error &e) {
std::cerr << "Exception: " << e.what() << std::endl;
return 1;
}
return 0;
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}