97 lines
3.7 KiB
C++
97 lines
3.7 KiB
C++
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#include "StarFile.hpp"
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#include "StarLexicalCast.hpp"
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#include "StarImage.hpp"
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#include "StarRootLoader.hpp"
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#include "StarTerrainDatabase.hpp"
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#include "StarJson.hpp"
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#include "StarRandom.hpp"
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#include "StarColor.hpp"
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#include "StarMultiArray.hpp"
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using namespace Star;
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int main(int argc, char** argv) {
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try {
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RootLoader rootLoader({{}, {}, {}, LogLevel::Error, false, {}});
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rootLoader.setSummary("Generate a heatmap image visualizing the output of a given terrain selector");
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rootLoader.addParameter("selector", "selector", OptionParser::Required, "name of the terrain selector to be rendered");
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rootLoader.addParameter("size", "size", OptionParser::Required, "x,y size of the region to be rendered");
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rootLoader.addParameter("seed", "seed", OptionParser::Optional, "seed value for the selector");
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rootLoader.addParameter("commonality", "commonality", OptionParser::Optional, "commonality value for the selector (default 1)");
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rootLoader.addParameter("scale", "scale", OptionParser::Optional, "maximum distance from 0 for color range");
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rootLoader.addParameter("mode", "mode", OptionParser::Optional, "color mode: heatmap, terrain");
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RootUPtr root;
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OptionParser::Options options;
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tie(root, options) = rootLoader.commandInitOrDie(argc, argv);
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auto size = Vec2U(lexicalCast<unsigned>(options.parameters["size"].first().split(",")[0]), lexicalCast<unsigned>(options.parameters["size"].first().split(",")[1]));
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auto seed = Random::randu64();
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if (!options.parameters["seed"].empty())
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seed = lexicalCast<uint64_t>(options.parameters["seed"].first());
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float commonality = 1.0f;
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if (!options.parameters["commonality"].empty())
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commonality = lexicalCast<float>(options.parameters["commonality"].first());
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float scale = 1.0f;
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bool autoScale = true;
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if (!options.parameters["scale"].empty()) {
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autoScale = false;
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scale = lexicalCast<float>(options.parameters["scale"].first());
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}
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String mode = "heatmap";
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if (!options.parameters["mode"].empty())
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mode = options.parameters["mode"].first();
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auto selectorParameters = TerrainSelectorParameters(JsonObject{
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{"worldWidth", size[0]},
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{"baseHeight", size[1] / 2},
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{"seed", seed},
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{"commonality", commonality}
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});
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auto selector = Root::singleton().terrainDatabase()->createNamedSelector(options.parameters["selector"].first(), selectorParameters);
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MultiArray<float, 2> terrainResult({size[0], size[1]}, 0.0f);
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for (size_t x = 0; x < size[0]; ++x) {
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for (size_t y = 0; y < size[1]; ++y) {
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auto value = selector->get(x, y);
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terrainResult(x, y) = value;
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if (autoScale)
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scale = max(scale, abs(value));
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}
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}
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coutf("Generating %s size image for selector with scale %s\n", size, scale);
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auto outputImage = make_shared<Image>(size, PixelFormat::RGB24);
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for (size_t x = 0; x < size[0]; ++x) {
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for (size_t y = 0; y < size[1]; ++y) {
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// Image y = 0 is the top, so reverse it for the world position
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auto value = terrainResult(x, y) / scale;
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if (mode == "heatmap") {
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Color color = Color::rgb(255, 0, 0);
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color.setHue(clamp(value / 2 + 0.5f, 0.0f, 1.0f));
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outputImage->set(x, y, color.toRgb());
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} else if (mode == "terrain") {
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if (value > 0)
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outputImage->set(x, y, Vec3B(0, 100 + floor(155 * value), floor(255 * value)));
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else
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outputImage->set(x, y, Vec3B(floor(255 * -value), 0, 0));
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}
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}
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}
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outputImage->writePng(File::open("terrain.png", IOMode::Write));
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return 0;
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} catch (std::exception const& e) {
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cerrf("exception caught: %s\n", outputException(e, true));
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return 1;
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}
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}
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