75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
/*
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* =====================================================================================
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*
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* OpenMiner
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*
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* Copyright (C) 2018-2020 Unarelith, Quentin Bazin <openminer@unarelith.net>
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* Copyright (C) 2019-2020 the OpenMiner contributors (see CONTRIBUTORS.md)
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*
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* This file is part of OpenMiner.
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*
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* OpenMiner is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* OpenMiner is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with OpenMiner; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* =====================================================================================
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*/
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#include <fstream>
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#include <gk/gl/Texture.hpp>
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#include <gk/resource/ResourceHandler.hpp>
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#include "Font.hpp"
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Font::Font(const std::string &textureName, const std::string &configPath)
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: m_texture(gk::ResourceHandler::getInstance().get<gk::Texture>(textureName))
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{
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std::memset(m_charWidth, 0, sizeof(u8) * 256);
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parseConfig(configPath);
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}
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gk::Vector2f Font::getTexCoords(u8 c, u8 x, u8 y) const {
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u8 tileX = c % (m_texture.getSize().x / m_width);
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u8 tileY = c / (m_texture.getSize().x / m_width);
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gk::Vector2f texCoords{
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(tileX + x) * m_width / (float)m_texture.getSize().x,
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(tileY + y) * m_height / (float)m_texture.getSize().y
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};
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return texCoords;
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}
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void Font::parseConfig(const std::string &configPath) {
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std::ifstream file(configPath);
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std::string line;
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while (std::getline(file, line, '\n')) {
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if (line.empty()) continue;
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u16 dot = line.find_first_of('.');
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u16 equal = line.find_first_of('=');
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std::string propertyName = line.substr(0, dot);
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if (propertyName != "width")
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throw EXCEPTION("Unexpected property for font:", propertyName);
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int propertyKey = std::stoi(line.substr(dot + 1, equal - dot - 1));
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u8 propertyValue = std::stoi(line.substr(equal + 1));
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m_charWidth[propertyKey] = propertyValue;
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}
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}
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