87 lines
3.1 KiB
C++
87 lines
3.1 KiB
C++
/* Copyright 2015, Michele Santullo
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* This file is part of DoorKeeper.
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*
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* DoorKeeper is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* DoorKeeper 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with DoorKeeper. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace dk {
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template <uint32_t D>
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Viewport<D>::Viewport (Tyler<D>& parTyler) :
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m_tyler(parTyler)
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{
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}
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template <uint32_t D>
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Viewport<D>::Viewport (Tyler<D>& parTyler, const coords& parSize, const coords& parPos) :
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m_view(parPos, parSize - 1),
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m_tyler(parTyler)
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{
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DK_ASSERT(parPos < parPos + parSize); //parSize > 0
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DK_ASSERT(parSize + parPos <= parTyler.map_size());
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m_tyler.preload(m_view.position(), m_view.position() + this->size());
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}
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template <uint32_t D>
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template <typename T>
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typename Layer<T, D>::iterator Viewport<D>::begin (Layer<T, D>& parLayer) const {
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typedef typename Layer<T, D>::iterator IterType;
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return IterType(&parLayer.m_tiles, parLayer.m_tilemap->pixel_conv(), m_view.position(), m_view.upper());
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}
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template <uint32_t D>
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template <typename T>
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typename Layer<T, D>::iterator Viewport<D>::end (Layer<T, D>& parLayer) const {
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typedef typename Layer<T, D>::iterator IterType;
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return IterType(&parLayer.m_tiles, parLayer.m_tilemap->pixel_conv(), make_past_end_coords<D>(m_view.upper()), make_past_end_coords<D>(m_view.upper()));
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}
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template <uint32_t D>
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template <typename T>
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typename Layer<T, D>::const_iterator Viewport<D>::begin (const Layer<T, D>& parLayer) const {
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return this->cbegin(parLayer);
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}
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template <uint32_t D>
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template <typename T>
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typename Layer<T, D>::const_iterator Viewport<D>::end (const Layer<T, D>& parLayer) const {
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return this->cend(parLayer);
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}
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template <uint32_t D>
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template <typename T>
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typename Layer<T, D>::const_iterator Viewport<D>::cbegin (const Layer<T, D>& parLayer) const {
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typedef typename Layer<T, D>::const_iterator IterType;
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return IterType(&parLayer.m_tiles, parLayer.m_tilemap->pixel_conv(), m_view.position(), m_view.upper());
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}
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template <uint32_t D>
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template <typename T>
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typename Layer<T, D>::const_iterator Viewport<D>::cend (const Layer<T, D>& parLayer) const {
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typedef typename Layer<T, D>::const_iterator IterType;
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return IterType(&parLayer.m_tiles, parLayer.m_tilemap->pixel_conv(), make_past_end_coords<D>(m_view.upper()), make_past_end_coords<D>(m_view.upper()));
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}
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template <uint32_t D>
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void Viewport<D>::setFrom (const coords& parFrom) {
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DK_ASSERT(this->size() + parFrom <= m_tyler.map_size());
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m_view.set_position(parFrom);
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m_tyler.preload(m_view.position(), m_view.position() + this->size());
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}
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template <uint32_t D>
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typename Viewport<D>::coords Viewport<D>::size() const {
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return (m_view.upper() + 1);
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}
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} //namespace dk
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