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#include "Sprite.hpp"
#include "Image.hpp"
#include "RapidJsonHelper.hpp"
#include <rapidjson/document.h>
#include <memory>
using namespace std::literals;
bool Sprite::IsValid() const {
return mAtlas != nullptr;
}
bool IresSpriteFiles::IsValid() const {
return !spriteFiles.empty();
}
Sprite* IresSpriteFiles::CreateInstance() const {
if (IsValid()) {
return nullptr;
}
std::vector<Texture::AtlasSource> sources;
sources.resize(spriteFiles.size());
for (auto& file : spriteFiles) {
}
Texture::AtlasOutput atlasOut;
Texture::AtlasInput atlasIn{
.sources = sources,
.packingMode = Texture::PM_KeepSquare,
};
atlasIn.sources = sources;
auto atlas = std::make_unique<Texture>();
if (atlas->InitAtlas(atlasIn, &atlasOut) != Texture::EC_Success) {
return nullptr;
}
auto sprite = std::make_unique<Sprite>();
sprite->mAtlas.Attach(atlas.release());
sprite->mBoundingBox = atlasOut.elements[0].subregionSize;
sprite->mFrames.reserve(atlasOut.elements.size());
for (auto& elm : atlasOut.elements) {
// Validate bounding box
if (sprite->mBoundingBox != elm.subregionSize) {
return nullptr;
}
// Copy frame subregion
sprite->mFrames.push_back(elm.subregion);
}
return sprite.release();
}
Sprite* IresSpriteFiles::GetInstance() {
if (mInstance == nullptr) {
mInstance.Attach(CreateInstance());
}
return mInstance.Get();
}
void IresSpriteFiles::InvalidateInstance() {
mInstance.Attach(nullptr);
}
void IresSpriteFiles::Write(rapidjson::Value& value, rapidjson::Document& root) const {
value.AddMember("Sprites", rapidjson::WriteVectorPrimitives(root, spriteFiles.begin(), spriteFiles.end()), root.GetAllocator());
}
void IresSpriteFiles::Read(const rapidjson::Value& value) {
auto rvFileList = rapidjson::GetProperty(value, rapidjson::kArrayType, "Sprites"sv);
if (!rvFileList) return;
spriteFiles.clear();
rapidjson::ReadVectorPrimitives<decltype(spriteFiles)>(*rvFileList, spriteFiles);
}
bool IresSpritesheet::IsValid() const {
return !spritesheetFile.empty() &&
sheetWSplit != 0 &&
sheetHSplit != 0;
}
void IresSpritesheet::ResplitSpritesheet(Sprite* sprite, int wSplit, int hSplit) {
auto atlas = sprite->GetAtlas();
auto size = atlas->GetInfo().size;
int frameWidth = size.x / wSplit;
int frameHeight = size.y / hSplit;
sprite->mBoundingBox = { frameWidth, frameHeight };
sprite->mFrames.clear();
sprite->mFrames.reserve(wSplit * hSplit);
// Width and height in UV coordinates for each frame
float deltaU = 1.0f / wSplit;
float deltaV = 1.0f / hSplit;
for (int y = 0; y < hSplit; ++y) {
for (int x = 0; x < wSplit; ++x) {
auto& subregion = sprite->mFrames.emplace_back();
// Top left
subregion.u0 = deltaU * x;
subregion.v0 = deltaV * y;
// Bottom right
subregion.u1 = subregion.u0 + deltaU;
subregion.u1 = subregion.v0 + deltaV;
}
}
}
Sprite* IresSpritesheet::CreateInstance() const {
if (!IsValid()) {
return nullptr;
}
auto atlas = std::make_unique<Texture>();
if (!atlas->InitFromFile(spritesheetFile.c_str())) {
return nullptr;
}
auto sprite = std::make_unique<Sprite>();
sprite->mAtlas.Attach(atlas.release());
ResplitSpritesheet(sprite.get(), sheetWSplit, sheetHSplit);
return sprite.release();
}
Sprite* IresSpritesheet::GetInstance() {
if (mInstance == nullptr) {
mInstance.Attach(CreateInstance());
}
return mInstance.Get();
}
void IresSpritesheet::InvalidateInstance() {
mInstance.Attach(nullptr);
}
void IresSpritesheet::Write(rapidjson::Value& value, rapidjson::Document& root) const {
value.AddMember("SpriteSheet", spritesheetFile, root.GetAllocator());
value.AddMember("WSplit", sheetWSplit, root.GetAllocator());
value.AddMember("HSplit", sheetHSplit, root.GetAllocator());
}
void IresSpritesheet::Read(const rapidjson::Value& value) {
BRUSSEL_JSON_GET(value, "SpriteSheet", std::string, spritesheetFile, return );
BRUSSEL_JSON_GET(value, "WSplit", int, sheetWSplit, return );
BRUSSEL_JSON_GET(value, "HSplit", int, sheetHSplit, return );
}
SpriteMesh::SpriteMesh(Sprite* sprite)
: mSprite(sprite) {
}
void SpriteMesh::SetFrame(int frame) {
// TODO
}
void SpriteMesh::PlayFrame() {
// TODO
}
void SpriteMesh::SetPlaybackSpeed(int speed) {
// TODO
}
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