Ykkrosh
11a20e1bcf
Simplify terrain code (remove Handle indirection). Delete unused terrain properties. This was SVN commit r7590.
77 lines
1.7 KiB
C++
77 lines
1.7 KiB
C++
/* Copyright (C) 2010 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. 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 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. 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 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INCLUDED_GRID
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#define INCLUDED_GRID
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#include <cstring>
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#ifdef NDEBUG
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#define GRID_BOUNDS_DEBUG 0
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#else
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#define GRID_BOUNDS_DEBUG 1
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#endif
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/**
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* Basic 2D array, intended for storing tile data, plus support for lazy updates
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* by ICmpObstructionManager.
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* @c T must be a POD type that can be initialised with 0s.
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*/
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template<typename T>
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class Grid
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{
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public:
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Grid(u16 w, u16 h) : m_W(w), m_H(h), m_DirtyID(0)
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{
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m_Data = new T[m_W * m_H];
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reset();
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}
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~Grid()
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{
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delete[] m_Data;
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}
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void reset()
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{
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memset(m_Data, 0, m_W*m_H*sizeof(T));
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}
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void set(size_t i, size_t j, const T& value)
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{
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#if GRID_BOUNDS_DEBUG
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debug_assert(i < m_W && j < m_H);
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#endif
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m_Data[j*m_W + i] = value;
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}
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T& get(size_t i, size_t j) const
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{
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#if GRID_BOUNDS_DEBUG
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debug_assert(i < m_W && j < m_H);
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#endif
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return m_Data[j*m_W + i];
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}
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u16 m_W, m_H;
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T* m_Data;
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size_t m_DirtyID; // if this is < the id maintained by ICmpObstructionManager then it needs to be updated
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};
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#endif // INCLUDED_GRID
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