57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program 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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* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef NUVIE_MISC_U6_LINE_WALKER_H
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#define NUVIE_MISC_U6_LINE_WALKER_H
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#include "ultima/nuvie/core/nuvie_defs.h"
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namespace Ultima {
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namespace Nuvie {
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class U6LineWalker {
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protected:
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uint32 start_x, start_y;
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uint32 end_x, end_y;
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sint32 xoffset[2], yoffset[2];
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sint32 line_inc[2];
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sint32 line_counter;
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uint32 cur_x, cur_y;
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uint32 max_length;
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uint32 cur_step;
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public:
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U6LineWalker(uint32 sx, uint32 sy, uint32 ex, uint32 ey);
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virtual ~U6LineWalker();
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bool step();
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bool next(uint32 *x, uint32 *y);
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};
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} // End of namespace Nuvie
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} // End of namespace Ultima
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#endif
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