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/*-
* Copyright (c) 2011 Ed Schouten <ed@80386.nl>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef FLOWSNAKE_H
#define FLOWSNAKE_H
#include <stdint.h>
/* X/Y-dimension. */
typedef int32_t fsdim_t;
#define FSDIM_C(c) INT32_C(c)
/* Curve index. */
typedef int64_t fsidx_t;
#define FSIDX_C(c) INT64_C(c)
#define ALTGOSPER_RANGE FSIDX_C(79792266297612001) /* 49^10 */
#define ALTGOSPER_FIRST FSIDX_C(-26597422099204000)
#define ALTGOSPER_LAST (ALTGOSPER_FIRST + ALTGOSPER_RANGE - 1)
int altgosper_itoxy(fsidx_t, fsdim_t *, fsdim_t *);
int altgosper_xytoi(fsdim_t, fsdim_t, fsidx_t *);
#define GOSPER_RANGE FSIDX_C(558545864083284007) /* 7^21 */
#define GOSPER_FIRST FSIDX_C(-209454699031231502)
#define GOSPER_LAST (GOSPER_FIRST + GOSPER_RANGE - 1)
int gosper_itoxy(fsidx_t, fsdim_t *, fsdim_t *);
int gosper_xytoi(fsdim_t, fsdim_t, fsidx_t *);
#define MARITA_RANGE FSIDX_C(79792266297612001) /* 49^10 */
#define MARITA_FIRST FSIDX_C(-39896133148806000)
#define MARITA_LAST (MARITA_FIRST + MARITA_RANGE - 1)
int marita_itoxy(fsidx_t, fsdim_t *, fsdim_t *);
int marita_xytoi(fsdim_t, fsdim_t, fsidx_t *);
#endif /* !FLOWSNAKE_H */
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