385 lines
11 KiB
C++
385 lines
11 KiB
C++
#ifndef STAR_JSON_EXTRA_HPP
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#define STAR_JSON_EXTRA_HPP
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#include "StarJson.hpp"
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#include "StarPoly.hpp"
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#include "StarColor.hpp"
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#include "StarSet.hpp"
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#include "StarWeightedPool.hpp"
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namespace Star {
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// Extra methods to parse a variety of types out of pure JSON. Throws
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// JsonException if json is not of correct type or size.
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size_t jsonToSize(Json const& v);
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Json jsonFromSize(size_t s);
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// Must be array of appropriate size.
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Vec2D jsonToVec2D(Json const& v);
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Vec2F jsonToVec2F(Json const& v);
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Json jsonFromVec2F(Vec2F const& v);
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Vec2I jsonToVec2I(Json const& v);
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Json jsonFromVec2I(Vec2I const& v);
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Vec2U jsonToVec2U(Json const& v);
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Json jsonFromVec2U(Vec2U const& v);
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Vec2B jsonToVec2B(Json const& v);
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Json jsonFromVec2B(Vec2B const& v);
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Vec3D jsonToVec3D(Json const& v);
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Vec3F jsonToVec3F(Json const& v);
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Json jsonFromVec3F(Vec3F const& v);
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Vec3I jsonToVec3I(Json const& v);
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Json jsonFromVec3I(Vec3I const& v);
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Vec3B jsonToVec3B(Json const& v);
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Vec4B jsonToVec4B(Json const& v);
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Vec4I jsonToVec4I(Json const& v);
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Vec4F jsonToVec4F(Json const& v);
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// Must be array of size 4 or 2 arrays of size 2 in an array.
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RectD jsonToRectD(Json const& v);
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Json jsonFromRectD(RectD const& rect);
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RectF jsonToRectF(Json const& v);
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Json jsonFromRectF(RectF const& rect);
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RectI jsonToRectI(Json const& v);
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Json jsonFromRectI(RectI const& rect);
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RectU jsonToRectU(Json const& v);
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Json jsonFromRectU(RectU const& rect);
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// Can be a string, array of size 3 or 4 of doubles or ints. If double, range
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// is 0.0 to 1.0, if int range is 0-255
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Color jsonToColor(Json const& v);
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Json jsonFromColor(Color const& color);
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// HACK: Fix clockwise specified polygons in coming from JSON
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template <typename Float>
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Polygon<Float> fixInsideOutPoly(Polygon<Float> p);
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// Array of size 2 arrays
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PolyD jsonToPolyD(Json const& v);
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PolyF jsonToPolyF(Json const& v);
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PolyI jsonToPolyI(Json const& v);
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Json jsonFromPolyF(PolyF const& poly);
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// Expects a size 2 array of size 2 arrays
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Line2F jsonToLine2F(Json const& v);
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Json jsonFromLine2F(Line2F const& line);
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Mat3F jsonToMat3F(Json const& v);
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Json jsonFromMat3F(Mat3F const& v);
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StringList jsonToStringList(Json const& v);
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Json jsonFromStringList(List<String> const& v);
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StringSet jsonToStringSet(Json const& v);
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Json jsonFromStringSet(StringSet const& v);
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List<float> jsonToFloatList(Json const& v);
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List<int> jsonToIntList(Json const& v);
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List<Vec2I> jsonToVec2IList(Json const& v);
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List<Vec2U> jsonToVec2UList(Json const& v);
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List<Vec2F> jsonToVec2FList(Json const& v);
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List<Vec4B> jsonToVec4BList(Json const& v);
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List<Color> jsonToColorList(Json const& v);
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Json weightedChoiceFromJson(Json const& source, Json const& default_);
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// Assumes that the bins parameter is an array of pairs (arrays), where the
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// first element is a minimum value and the second element is the actual
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// important value. Finds the pair with the highest value that is less than or
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// equal to the given target, and returns the second element.
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Json binnedChoiceFromJson(Json const& bins, float target, Json const& def = Json());
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template <typename T>
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WeightedPool<T> jsonToWeightedPool(Json const& source);
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template <typename T, typename Converter>
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WeightedPool<T> jsonToWeightedPool(Json const& source, Converter&& converter);
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template <typename T>
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Json jsonFromWeightedPool(WeightedPool<T> const& pool);
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template <typename T, typename Converter>
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Json jsonFromWeightedPool(WeightedPool<T> const& pool, Converter&& converter);
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template <size_t Size>
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Array<unsigned, Size> jsonToArrayU(Json const& v) {
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if (v.size() != Size)
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throw JsonException(strf("Json array not of size %d in jsonToArrayU", Size).c_str());
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Array<unsigned, Size> res;
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for (size_t i = 0; i < Size; i++) {
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res[i] = v.getUInt(i);
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}
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return res;
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}
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template <size_t Size>
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Array<size_t, Size> jsonToArrayS(Json const& v) {
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if (v.size() != Size)
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throw JsonException(strf("Json array not of size %d in jsonToArrayS", Size).c_str());
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Array<size_t, Size> res;
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for (size_t i = 0; i < Size; i++) {
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res[i] = v.getUInt(i);
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}
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return res;
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}
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template <size_t Size>
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Array<int, Size> jsonToArrayI(Json const& v) {
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if (v.size() != Size)
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throw JsonException(strf("Json array not of size %d in jsonToArrayI", Size).c_str());
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Array<int, Size> res;
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for (size_t i = 0; i < Size; i++) {
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res[i] = v.getInt(i);
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}
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return res;
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}
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template <size_t Size>
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Array<float, Size> jsonToArrayF(Json const& v) {
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if (v.size() != Size)
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throw JsonException(strf("Json array not of size %d in jsonToArrayF", Size).c_str());
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Array<float, Size> res;
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for (size_t i = 0; i < Size; i++) {
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res[i] = v.getFloat(i);
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}
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return res;
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}
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template <size_t Size>
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Array<double, Size> jsonToArrayD(Json const& v) {
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if (v.size() != Size)
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throw JsonException(strf("Json array not of size %d in jsonToArrayD", Size).c_str());
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Array<double, Size> res;
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for (size_t i = 0; i < Size; i++) {
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res[i] = v.getDouble(i);
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}
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return res;
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}
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template <size_t Size>
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Array<String, Size> jsonToStringArray(Json const& v) {
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if (v.size() != Size)
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throw JsonException(strf("Json array not of size %d in jsonToStringArray", Size).c_str());
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Array<String, Size> res;
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for (size_t i = 0; i < Size; i++) {
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res[i] = v.getString(i);
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}
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return res;
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}
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template <typename Value>
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List<Value> jsonToList(Json const& v) {
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return jsonToList<Value>(v, construct<Value>());
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}
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template <typename Value, typename Converter>
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List<Value> jsonToList(Json const& v, Converter&& valueConvert) {
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if (v.type() != Json::Type::Array)
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throw JsonException("Json type is not a array in jsonToList");
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List<Value> res;
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for (auto const& entry : v.iterateArray())
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res.push_back(valueConvert(entry));
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return res;
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}
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template <typename Value>
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Json jsonFromList(List<Value> const& list) {
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return jsonFromList<Value>(list, construct<Json>());
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}
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template <typename Value, typename Converter>
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Json jsonFromList(List<Value> const& list, Converter&& valueConvert) {
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JsonArray res;
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for (auto const& entry : list)
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res.push_back(valueConvert(entry));
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return res;
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}
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template <typename Value>
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Set<Value> jsonToSet(Json const& v) {
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return jsonToSet<Value>(v, construct<Value>());
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}
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template <typename Value, typename Converter>
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Set<Value> jsonToSet(Json const& v, Converter&& valueConvert) {
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if (v.type() != Json::Type::Array)
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throw JsonException("Json type is not an array in jsonToSet");
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Set<Value> res;
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for (auto const& entry : v.iterateArray())
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res.add(valueConvert(entry));
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return res;
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}
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template <typename Value>
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Json jsonFromSet(Set<Value> const& Set) {
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return jsonFromSet<Value>(Set, construct<Json>());
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}
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template <typename Value, typename Converter>
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Json jsonFromSet(Set<Value> const& Set, Converter&& valueConvert) {
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JsonArray res;
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for (auto entry : Set)
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res.push_back(valueConvert(entry));
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return res;
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}
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template <typename MapType, typename KeyConverter, typename ValueConverter>
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MapType jsonToMapKV(Json const& v, KeyConverter&& keyConvert, ValueConverter&& valueConvert) {
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if (v.type() != Json::Type::Object)
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throw JsonException("Json type is not an object in jsonToMap");
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MapType res;
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for (auto const& pair : v.iterateObject())
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res.add(keyConvert(pair.first), valueConvert(pair.second));
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return res;
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}
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template <typename MapType, typename KeyConverter>
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MapType jsonToMapK(Json const& v, KeyConverter&& keyConvert) {
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return jsonToMapKV<MapType>(v, forward<KeyConverter>(keyConvert), construct<typename MapType::mapped_type>());
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}
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template <typename MapType, typename ValueConverter>
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MapType jsonToMapV(Json const& v, ValueConverter&& valueConvert) {
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return jsonToMapKV<MapType>(v, construct<typename MapType::key_type>(), forward<ValueConverter>(valueConvert));
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}
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template <typename MapType>
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MapType jsonToMap(Json const& v) {
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return jsonToMapKV<MapType>(v, construct<typename MapType::key_type>(), construct<typename MapType::mapped_type>());
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}
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template <typename MapType, typename KeyConverter, typename ValueConverter>
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Json jsonFromMapKV(MapType const& map, KeyConverter&& keyConvert, ValueConverter&& valueConvert) {
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JsonObject res;
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for (auto pair : map)
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res[keyConvert(pair.first)] = valueConvert(pair.second);
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return res;
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}
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template <typename MapType, typename KeyConverter>
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Json jsonFromMapK(MapType const& map, KeyConverter&& keyConvert) {
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return jsonFromMapKV<MapType>(map, forward<KeyConverter>(keyConvert), construct<Json>());
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}
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template <typename MapType, typename ValueConverter>
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Json jsonFromMapV(MapType const& map, ValueConverter&& valueConvert) {
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return jsonFromMapKV<MapType>(map, construct<String>(), forward<ValueConverter>(valueConvert));
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}
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template <typename MapType>
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Json jsonFromMap(MapType const& map) {
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return jsonFromMapKV<MapType>(map, construct<String>(), construct<Json>());
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}
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template <typename T, typename Converter>
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Json jsonFromMaybe(Maybe<T> const& m, Converter&& converter) {
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return m.apply(converter).value();
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}
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template <typename T>
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Json jsonFromMaybe(Maybe<T> const& m) {
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return jsonFromMaybe(m, construct<Json>());
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}
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template <typename T, typename Converter>
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Maybe<T> jsonToMaybe(Json v, Converter&& converter) {
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if (v.isNull())
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return {};
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return converter(v);
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}
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template <typename T>
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Maybe<T> jsonToMaybe(Json const& v) {
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return jsonToMaybe<T>(v, construct<T>());
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}
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template <typename T>
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WeightedPool<T> jsonToWeightedPool(Json const& source) {
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return jsonToWeightedPool<T>(source, construct<T>());
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}
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template <typename T, typename Converter>
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WeightedPool<T> jsonToWeightedPool(Json const& source, Converter&& converter) {
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WeightedPool<T> res;
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if (source.isNull())
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return res;
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for (auto entry : source.iterateArray()) {
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if (entry.isType(Json::Type::Array))
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res.add(entry.get(0).toDouble(), converter(entry.get(1)));
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else
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res.add(entry.getDouble("weight"), converter(entry.get("item")));
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}
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return res;
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}
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template <typename T>
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Json jsonFromWeightedPool(WeightedPool<T> const& pool) {
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return jsonFromWeightedPool<T>(pool, construct<Json>());
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}
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template <typename T, typename Converter>
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Json jsonFromWeightedPool(WeightedPool<T> const& pool, Converter&& converter) {
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JsonArray res;
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for (auto const& pair : pool.items()) {
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res.append(JsonObject{
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{"weight", pair.first}, {"item", converter(pair.second)},
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});
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}
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return res;
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}
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template <>
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WeightedPool<int> jsonToWeightedPool(Json const& source);
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template <>
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WeightedPool<unsigned> jsonToWeightedPool(Json const& source);
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template <>
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WeightedPool<float> jsonToWeightedPool(Json const& source);
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template <>
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WeightedPool<double> jsonToWeightedPool(Json const& source);
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template <>
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WeightedPool<String> jsonToWeightedPool(Json const& source);
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template <>
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WeightedPool<JsonArray> jsonToWeightedPool(Json const& source);
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template <>
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WeightedPool<JsonObject> jsonToWeightedPool(Json const& source);
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template <typename Float>
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Polygon<Float> fixInsideOutPoly(Polygon<Float> p) {
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if (p.sides() > 2) {
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if ((p.side(1).diff() ^ p.side(0).diff()) > 0)
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reverse(p.vertexes());
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}
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return p;
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}
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}
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#endif
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