mirror of https://github.com/minetest/minetest.git
103 lines
2.2 KiB
C
103 lines
2.2 KiB
C
/*
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Minetest
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Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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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 Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; 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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#pragma once
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#include "irrlichttypes.h"
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#include "irr_v3d.h"
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/// Direction in the 6D format. g_27dirs contains corresponding vectors.
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/// Here P means Positive, N stands for Negative.
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enum Direction6D {
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// 0
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D6D_ZP,
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D6D_YP,
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D6D_XP,
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D6D_ZN,
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D6D_YN,
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D6D_XN,
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// 6
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D6D_XN_YP,
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D6D_XP_YP,
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D6D_YP_ZP,
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D6D_YP_ZN,
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D6D_XN_ZP,
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D6D_XP_ZP,
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D6D_XN_ZN,
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D6D_XP_ZN,
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D6D_XN_YN,
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D6D_XP_YN,
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D6D_YN_ZP,
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D6D_YN_ZN,
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// 18
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D6D_XN_YP_ZP,
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D6D_XP_YP_ZP,
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D6D_XN_YP_ZN,
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D6D_XP_YP_ZN,
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D6D_XN_YN_ZP,
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D6D_XP_YN_ZP,
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D6D_XN_YN_ZN,
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D6D_XP_YN_ZN,
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// 26
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D6D,
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// aliases
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D6D_BACK = D6D_ZP,
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D6D_TOP = D6D_YP,
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D6D_RIGHT = D6D_XP,
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D6D_FRONT = D6D_ZN,
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D6D_BOTTOM = D6D_YN,
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D6D_LEFT = D6D_XN,
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};
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/// Direction in the wallmounted format.
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/// P is Positive, N is Negative.
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enum DirectionWallmounted {
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// The 6 wallmounted directions
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DWM_YP,
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DWM_YN,
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DWM_XP,
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DWM_XN,
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DWM_ZP,
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DWM_ZN,
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// There are 6 wallmounted directions, but 8 possible states (3 bits).
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// So we have 2 additional states, which drawtypes might use for
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// special ("S") behavior.
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DWM_S1,
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DWM_S2,
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DWM_COUNT
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};
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extern const v3s16 g_6dirs[6];
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extern const v3s16 g_7dirs[7];
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extern const v3s16 g_26dirs[26];
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// 26th is (0,0,0)
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extern const v3s16 g_27dirs[27];
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extern const u8 wallmounted_to_facedir[DWM_COUNT];
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extern const v3s16 wallmounted_dirs[DWM_COUNT];
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extern const v3s16 facedir_dirs[32];
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extern const v3s16 fourdir_dirs[4];
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