302 lines
9.6 KiB
C++
302 lines
9.6 KiB
C++
#include "StarDrawable.hpp"
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#include "StarColor.hpp"
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#include "StarJsonExtra.hpp"
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#include "StarDataStreamExtra.hpp"
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#include "StarAssets.hpp"
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#include "StarImageMetadataDatabase.hpp"
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#include "StarGameTypes.hpp"
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#include "StarRoot.hpp"
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namespace Star {
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Drawable::ImagePart& Drawable::ImagePart::addDirectives(Directives const& directives, bool keepImageCenterPosition) {
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if (!directives)
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return *this;
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if (keepImageCenterPosition) {
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auto imageMetadata = Root::singleton().imageMetadataDatabase();
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Vec2F imageSize = Vec2F(imageMetadata->imageSize(image));
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image.directives += directives;
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Vec2F newImageSize = Vec2F(imageMetadata->imageSize(image));
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// If we are trying to maintain the image center, PRE translate the image by
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// the change in size / 2
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transformation *= Mat3F::translation((imageSize - newImageSize) / 2);
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} else {
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image.directives += directives;
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}
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return *this;
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}
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Drawable::ImagePart& Drawable::ImagePart::addDirectivesGroup(DirectivesGroup const& directivesGroup, bool keepImageCenterPosition) {
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if (directivesGroup.empty())
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return *this;
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if (keepImageCenterPosition) {
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auto imageMetadata = Root::singleton().imageMetadataDatabase();
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Vec2F imageSize = Vec2F(imageMetadata->imageSize(image));
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for (Directives const& directives : directivesGroup.list())
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image.directives += directives;
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Vec2F newImageSize = Vec2F(imageMetadata->imageSize(image));
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// If we are trying to maintain the image center, PRE translate the image by
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// the change in size / 2
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transformation *= Mat3F::translation((imageSize - newImageSize) / 2);
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} else {
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for (Directives const& directives : directivesGroup.list())
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image.directives += directives;
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}
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return *this;
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}
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Drawable::ImagePart& Drawable::ImagePart::removeDirectives(bool keepImageCenterPosition) {
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if (keepImageCenterPosition) {
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auto imageMetadata = Root::singleton().imageMetadataDatabase();
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Vec2F imageSize = Vec2F(imageMetadata->imageSize(image));
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image.directives.clear();
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Vec2F newImageSize = Vec2F(imageMetadata->imageSize(image));
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// If we are trying to maintain the image center, PRE translate the image by
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// the change in size / 2
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transformation *= Mat3F::translation((imageSize - newImageSize) / 2);
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} else {
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image.directives.clear();
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}
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return *this;
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}
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Drawable Drawable::makeLine(Line2F const& line, float lineWidth, Color const& color, Vec2F const& position) {
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Drawable drawable;
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drawable.part = LinePart{std::move(line), lineWidth, {}};
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drawable.color = color;
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drawable.position = position;
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return drawable;
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}
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Drawable Drawable::makePoly(PolyF poly, Color const& color, Vec2F const& position) {
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Drawable drawable;
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drawable.part = PolyPart{std::move(poly)};
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drawable.color = color;
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drawable.position = position;
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return drawable;
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}
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Drawable Drawable::makeImage(AssetPath image, float pixelSize, bool centered, Vec2F const& position, Color const& color) {
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Drawable drawable;
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Mat3F transformation = Mat3F::identity();
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if (centered) {
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auto imageMetadata = Root::singleton().imageMetadataDatabase();
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Vec2F imageSize = Vec2F(imageMetadata->imageSize(image));
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transformation.translate(-imageSize / 2);
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}
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if (pixelSize != 1.0f)
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transformation.scale(pixelSize);
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drawable.part = ImagePart{std::move(image), std::move(transformation)};
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drawable.position = position;
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drawable.color = color;
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return drawable;
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}
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Drawable::Drawable()
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: color(Color::White), fullbright(false) {}
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Drawable::Drawable(Json const& json) {
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if (auto line = json.opt("line")) {
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part = LinePart{jsonToLine2F(*line), json.getFloat("width"), {}};
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} else if (auto poly = json.opt("poly")) {
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part = PolyPart{jsonToPolyF(*poly)};
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} else if (auto image = json.opt("image")) {
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auto imageString = image->toString();
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Mat3F transformation = Mat3F::identity();
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if (auto transformationConfig = json.opt("transformation")) {
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transformation = jsonToMat3F(*transformationConfig);
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} else {
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if (json.getBool("centered", true)) {
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auto imageMetadata = Root::singleton().imageMetadataDatabase();
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Vec2F imageSize = Vec2F(imageMetadata->imageSize(imageString));
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transformation.translate(-imageSize / 2);
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}
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if (auto rotation = json.optFloat("rotation"))
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transformation.rotate(*rotation);
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if (json.getBool("mirrored", false))
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transformation.scale(Vec2F(-1, 1));
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if (auto scale = json.optFloat("scale"))
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transformation.scale(*scale);
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}
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part = ImagePart{std::move(imageString), std::move(transformation)};
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}
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position = json.opt("position").apply(jsonToVec2F).value();
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color = json.opt("color").apply(jsonToColor).value(Color::White);
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fullbright = json.getBool("fullbright", false);
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}
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Json Drawable::toJson() const {
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JsonObject json;
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if (auto line = part.ptr<LinePart>()) {
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json.set("line", jsonFromLine2F(line->line));
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json.set("width", line->width);
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} else if (auto poly = part.ptr<PolyPart>()) {
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json.set("poly", jsonFromPolyF(poly->poly));
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} else if (auto image = part.ptr<ImagePart>()) {
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json.set("image", AssetPath::join(image->image));
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json.set("transformation", jsonFromMat3F(image->transformation));
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}
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json.set("position", jsonFromVec2F(position));
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json.set("color", jsonFromColor(color));
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json.set("fullbright", fullbright);
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return json;
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}
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void Drawable::translate(Vec2F const& translation) {
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position += translation;
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}
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void Drawable::rotate(float rotation, Vec2F const& rotationCenter) {
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if (auto line = part.ptr<LinePart>())
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line->line.rotate(rotation);
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else if (auto poly = part.ptr<PolyPart>())
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poly->poly.rotate(rotation);
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else if (auto image = part.ptr<ImagePart>())
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image->transformation.rotate(rotation);
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position = (position - rotationCenter).rotate(rotation) + rotationCenter;
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}
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void Drawable::scale(float scaling, Vec2F const& scaleCenter) {
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scale(Vec2F::filled(scaling), scaleCenter);
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}
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void Drawable::scale(Vec2F const& scaling, Vec2F const& scaleCenter) {
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if (auto line = part.ptr<LinePart>())
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line->line.scale(scaling);
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else if (auto poly = part.ptr<PolyPart>())
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poly->poly.scale(scaling);
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else if (auto image = part.ptr<ImagePart>())
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image->transformation.scale(scaling);
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position = (position - scaleCenter).piecewiseMultiply(scaling) + scaleCenter;
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}
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void Drawable::transform(Mat3F const& transformation) {
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Vec2F localTranslation = transformation.transformVec2(Vec2F());
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Mat3F localTransform = Mat3F::translation(-localTranslation) * transformation;
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if (auto line = part.ptr<LinePart>())
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line->line.transform(localTransform);
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else if (auto poly = part.ptr<PolyPart>())
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poly->poly.transform(localTransform);
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else if (auto image = part.ptr<ImagePart>())
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image->transformation = localTransform * image->transformation;
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position = transformation.transformVec2(position);
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}
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void Drawable::rebase(Vec2F const& newBase) {
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if (auto line = part.ptr<LinePart>())
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line->line.translate(position - newBase);
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else if (auto poly = part.ptr<PolyPart>())
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poly->poly.translate(position - newBase);
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else if (auto image = part.ptr<ImagePart>())
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image->transformation.translate(position - newBase);
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position = newBase;
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}
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RectF Drawable::boundBox(bool cropImages) const {
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RectF boundBox = RectF::null();
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if (auto line = part.ptr<LinePart>()) {
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boundBox.combine(line->line.min());
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boundBox.combine(line->line.max());
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} else if (auto poly = part.ptr<PolyPart>()) {
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boundBox.combine(poly->poly.boundBox());
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} else if (auto image = part.ptr<ImagePart>()) {
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auto imageMetadata = Root::singleton().imageMetadataDatabase();
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RectF imageRegion = RectF::null();
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if (cropImages) {
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RectU nonEmptyRegion = imageMetadata->nonEmptyRegion(image->image);
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if (!nonEmptyRegion.isNull())
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imageRegion = RectF(nonEmptyRegion);
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} else {
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imageRegion = RectF::withSize(Vec2F(), Vec2F(imageMetadata->imageSize(image->image)));
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}
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if (!imageRegion.isNull()) {
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boundBox.combine(image->transformation.transformVec2(Vec2F(imageRegion.xMin(), imageRegion.yMin())));
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boundBox.combine(image->transformation.transformVec2(Vec2F(imageRegion.xMax(), imageRegion.yMin())));
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boundBox.combine(image->transformation.transformVec2(Vec2F(imageRegion.xMin(), imageRegion.yMax())));
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boundBox.combine(image->transformation.transformVec2(Vec2F(imageRegion.xMax(), imageRegion.yMax())));
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}
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}
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if (!boundBox.isNull())
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boundBox.translate(position);
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return boundBox;
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}
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DataStream& operator>>(DataStream& ds, Drawable::LinePart& line) {
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ds >> line.line;
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ds >> line.width;
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return ds;
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}
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DataStream& operator<<(DataStream& ds, Drawable::LinePart const& line) {
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ds << line.line;
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ds << line.width;
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return ds;
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}
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DataStream& operator>>(DataStream& ds, Drawable::PolyPart& poly) {
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ds >> poly.poly;
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return ds;
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}
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DataStream& operator<<(DataStream& ds, Drawable::PolyPart const& poly) {
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ds << poly.poly;
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return ds;
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}
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// I need to find out if this is for network serialization or not eventually
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DataStream& operator>>(DataStream& ds, Drawable::ImagePart& image) {
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ds >> image.image;
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ds >> image.transformation;
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return ds;
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}
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DataStream& operator<<(DataStream& ds, Drawable::ImagePart const& image) {
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ds << image.image;
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ds << image.transformation;
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return ds;
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}
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DataStream& operator>>(DataStream& ds, Drawable& drawable) {
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ds >> drawable.part;
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ds >> drawable.position;
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ds >> drawable.color;
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ds >> drawable.fullbright;
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return ds;
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}
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DataStream& operator<<(DataStream& ds, Drawable const& drawable) {
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ds << drawable.part;
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ds << drawable.position;
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ds << drawable.color;
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ds << drawable.fullbright;
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return ds;
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}
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}
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