44 lines
1.3 KiB
C
44 lines
1.3 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_POSITION
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#define INCLUDED_POSITION
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#include "maths/Fixed.h"
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/**
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* @file
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* Entity coordinate types
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*
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* The basic unit is the "meter". Terrain tiles are TERRAIN_TILE_SIZE (=4) meters square.
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* To support deterministic computation across CPU architectures and compilers and
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* optimisation settings, the C++ simulation code must not use floating-point arithmetic.
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* We therefore use a fixed-point datatype for representing world positions.
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*/
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/**
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* Positions and distances (measured in metres)
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*/
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typedef CFixed_15_16 entity_pos_t;
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/**
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* Rotations (measured in radians)
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*/
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typedef CFixed_15_16 entity_angle_t;
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#endif // INCLUDED_POSITION
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