blame: source/code/sago/SagoSpriteHolder.cpp

/*

Copyright (c) 2015 Poul Sander

Permission is hereby granted, free of charge, to any person

obtaining a copy of this software and associated documentation files

(the "Software"), to deal in the Software without restriction,

including without limitation the rights to use, copy, modify, merge,

publish, distribute, sublicense, and/or sell copies of the Software,

and to permit persons to whom the Software is furnished to do so,

subject to the following conditions:

The above copyright notice and this permission notice shall be

included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS

BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

SOFTWARE.

*/

#include "SagoSpriteHolder.hpp"

#include "SagoMisc.hpp"

#include <memory>

#include <unordered_map>

#include <json/json.h>

#include <iostream>

#include <string.h>

#include <boost/algorithm/string/predicate.hpp>

using std::string;

using std::cerr;

using std::cout;

using std::vector;

namespace sago {

struct SagoSpriteHolder::SagoSpriteHolderData {

	const sago::SagoDataHolder* tex;

	std::unordered_map<std::string,std::shared_ptr<sago::SagoSprite>> sprites;

	const sago::SagoSprite* defaultSprite;

	bool verbose = false;

};

SagoSpriteHolder::SagoSpriteHolder(const SagoDataHolder& texHolder) {

	data = new SagoSpriteHolderData();

	try {

		data->tex = &texHolder;

		ReadSprites();

		data->defaultSprite = new sago::SagoSprite(texHolder,"fallback", {0,0,64,64},1,100);

	}

	catch (...) {

		delete data;

	}

}

SagoSpriteHolder::~SagoSpriteHolder() {

	delete data;

}

void SagoSpriteHolder::ReadSpriteFile(const std::string& filename) {

	string fullfile = "sprites/"+filename;

	string content = sago::GetFileContent(fullfile.c_str());

	Json::Value root;   // will contains the root value after parsing

	Json::Reader reader;

	bool parsingSuccessful = reader.parse( content, root );

	if ( !parsingSuccessful ) {

		cerr << "Failed to parse: " << fullfile << "\n"

		     << reader.getFormattedErrorMessages() << "\n";

		return;

	}

	for (Json::Value::iterator it = root.begin(); it != root.end() ; ++it) {

		string spriteName = it.key().asString();

		Json::Value value = (*it);

		if (!value.isObject()) {

			if (spriteName.c_str()[0] != '_') {

				//We ignore errors if the name starts with an underscore like "_comment"

				std::cerr << "Invalid sprite: " << spriteName << "\n";

			}

			continue;

		}

		string textureName = value.get("texture","fallback").asString();

		int topx = value.get("topx",0).asInt();

		int topy = value.get("topy",0).asInt();

		int height = value.get("height",0).asInt();

		int width = value.get("width",0).asInt();

		int number_of_frames = value.get("number_of_frames",1).asInt();

		int frame_time = value.get("frame_time",1).asInt();

		int originx = value.get("originx",0).asInt();

		int originy = value.get("originy",0).asInt();

		if (number_of_frames < 1) {

			number_of_frames = 1;

		}

		if (frame_time < 1) {

			frame_time = 1;

		}

		std::shared_ptr<sago::SagoSprite> ptr(new SagoSprite(*(data->tex),textureName, {topx,topy,width,height},number_of_frames,frame_time));

		ptr->SetOrigin({originx,originy, 0, 0});

		this->data->sprites[std::string(spriteName)] = ptr;

	}

}

void SagoSpriteHolder::ReadSprites() {

	std::vector<std::string> spritefiles = GetFileList("sprites");

	for (std::string& item : spritefiles  ) {

		if (boost::algorithm::ends_with(item,".sprite")) {

			if (data->verbose) {

				cout << "Found " << item << "\n";

			}

			ReadSpriteFile(item);

		}

		else {

			if (data->verbose) {

				cout << "Ignoreing " << item << "\n";

			}

		}

	}

}

const sago::SagoSprite& SagoSpriteHolder::GetSprite(const std::string& spritename) const {

	std::unordered_map<std::string,std::shared_ptr<sago::SagoSprite>>::const_iterator got = data->sprites.find (spritename);

	if ( got == data->sprites.end() ) {

		return *data->defaultSprite;

	}

	else {

		return *(got->second);

	}

}

const SagoDataHolder& SagoSpriteHolder::GetDataHolder() const {

	return *data->tex;

}

}