117 lines
3.5 KiB
C++
117 lines
3.5 KiB
C++
#include <llmr/style/sprite.hpp>
|
|
#include <llmr/map/map.hpp>
|
|
#include <llmr/util/raster.hpp>
|
|
|
|
#include <string>
|
|
#include <llmr/platform/platform.hpp>
|
|
#include <llmr/util/uv.hpp>
|
|
#include <llmr/util/std.hpp>
|
|
|
|
#include <rapidjson/document.h>
|
|
|
|
using namespace llmr;
|
|
|
|
SpritePosition::SpritePosition(uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint8_t pixelRatio)
|
|
: x(x),
|
|
y(y),
|
|
width(width),
|
|
height(height),
|
|
pixelRatio(pixelRatio) {
|
|
}
|
|
|
|
Sprite::Sprite(Map &map, float pixelRatio)
|
|
: pixelRatio(pixelRatio),
|
|
raster(),
|
|
map(map),
|
|
loaded(false) {
|
|
}
|
|
|
|
void Sprite::load(const std::string& base_url) {
|
|
std::shared_ptr<Sprite> sprite = shared_from_this();
|
|
|
|
std::string suffix = (pixelRatio > 1 ? "@2x" : "");
|
|
|
|
platform::request_http(base_url + suffix + ".json", [sprite](platform::Response *res) {
|
|
if (res->code == 200) {
|
|
sprite->body.swap(res->body);
|
|
sprite->asyncParseJSON();
|
|
} else {
|
|
fprintf(stderr, "failed to load sprite\n");
|
|
}
|
|
}, map.getLoop());
|
|
|
|
platform::request_http(base_url + suffix + ".png", [sprite](platform::Response *res) {
|
|
if (res->code == 200) {
|
|
sprite->image.swap(res->body);
|
|
sprite->asyncParseImage();
|
|
} else {
|
|
fprintf(stderr, "failed to load sprite image\n");
|
|
}
|
|
}, map.getLoop());
|
|
}
|
|
|
|
void Sprite::complete(std::shared_ptr<Sprite> &sprite) {
|
|
if (sprite->raster && sprite->pos.size()) {
|
|
sprite->loaded = true;
|
|
sprite->map.update();
|
|
#if defined(DEBUG)
|
|
fprintf(stderr, "sprite loaded\n");
|
|
#endif
|
|
}
|
|
}
|
|
|
|
bool Sprite::isLoaded() const {
|
|
return loaded;
|
|
}
|
|
|
|
void Sprite::asyncParseImage() {
|
|
new uv::work<std::shared_ptr<Sprite>>(map.getLoop(), parseImage, complete, shared_from_this());
|
|
}
|
|
|
|
void Sprite::asyncParseJSON() {
|
|
new uv::work<std::shared_ptr<Sprite>>(map.getLoop(), parseJSON, complete, shared_from_this());
|
|
}
|
|
|
|
void Sprite::parseImage(std::shared_ptr<Sprite> &sprite) {
|
|
sprite->raster = std::make_unique<util::Image>(sprite->image);
|
|
sprite->image.clear();
|
|
}
|
|
|
|
void Sprite::parseJSON(std::shared_ptr<Sprite> &sprite) {
|
|
rapidjson::Document d;
|
|
d.Parse<0>(sprite->body.c_str());
|
|
sprite->body.clear();
|
|
|
|
if (d.IsObject()) {
|
|
std::unordered_map<std::string, SpritePosition> pos;
|
|
|
|
for (rapidjson::Value::ConstMemberIterator itr = d.MemberBegin(); itr != d.MemberEnd(); ++itr) {
|
|
const std::string& name = itr->name.GetString();
|
|
const rapidjson::Value& value = itr->value;
|
|
|
|
if (value.IsObject()) {
|
|
uint16_t x = 0;
|
|
uint16_t y = 0;
|
|
uint16_t width = 0;
|
|
uint16_t height = 0;
|
|
uint8_t pixelRatio = 1;
|
|
|
|
if (value.HasMember("x")) x = value["x"].GetInt();
|
|
if (value.HasMember("y")) y = value["y"].GetInt();
|
|
if (value.HasMember("width")) width = value["width"].GetInt();
|
|
if (value.HasMember("height")) height = value["height"].GetInt();
|
|
if (value.HasMember("pixelRatio")) pixelRatio = value["pixelRatio"].GetInt();
|
|
pos.emplace(name, SpritePosition { x, y, width, height, pixelRatio });
|
|
}
|
|
}
|
|
|
|
sprite->pos.swap(pos);
|
|
}
|
|
}
|
|
|
|
const SpritePosition &Sprite::getSpritePosition(const std::string& name) const {
|
|
if (!isLoaded()) return empty;
|
|
auto it = pos.find(name);
|
|
return it == pos.end() ? empty : it->second;
|
|
}
|