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partially done work on total source tree rework, separation of engine context and game context, generalization of renderer for different backends as well as web platform target

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This commit is contained in:
veclav talica
2024-09-16 09:07:01 +03:00
parent ca0305feab
commit 551d60ef85
59 changed files with 2892 additions and 890 deletions
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src/twn_option_c.h Normal file
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#ifndef TWN_OPTION_H
#define TWN_OPTION_H
#include "twn_concatenate_c.h"
#include "twn_varargcount_c.h"
#include <stdbool.h>
/* usage example:
*
* struct result {
* float f;
* m_option_list(
* int, v
* )
* }
*
* struct result = {
* m_set(f, 1.0), -- non options could be set with this
* m_opt(v, 5), -- options are supposed to be initialized like that
* }
*
*/
#define m_set(p_member, p_value) .p_member = (p_value)
#define m_opt(p_member, p_value) .p_member##_opt = (p_value), .p_member##_opt_set = 1
#define m_is_set(p_value, p_member) ((p_value).p_member##_opt_set)
/* warn: beware of double evaluation! */
#define m_or(p_value, p_member, p_default) ((p_value).p_member##_opt_set ? (p_value).p_member##_opt : (p_default))
/* warn: beware of double evaluation! */
#define m_opt_from(p_member, p_value, p_member_from) .p_member##_opt = (p_value).p_member_from##_opt, \
.p_member##_opt_set = (p_value).p_member_from##_opt_set
#define m_option_list_2(t0, m0) \
t0 m0##_opt; \
bool m0##_opt_set : 1; \
#define m_option_list_4(t0, m0, t1, m1) \
t0 m0##_opt; \
t1 m1##_opt; \
bool m0##_opt_set : 1; \
bool m1##_opt_set : 1; \
#define m_option_list_6(t0, m0, t1, m1, t2, m2) \
t0 m0##_opt; \
t1 m1##_opt; \
t2 m1##_opt; \
bool m0##_opt_set : 1; \
bool m1##_opt_set : 1; \
bool m2##_opt_set : 1; \
#define m_option_list_8(t0, m0, t1, m1, t2, m2, t3, m3) \
t0 m0##_opt; \
t1 m1##_opt; \
t2 m2##_opt; \
t3 m3##_opt; \
bool m0##_opt_set : 1; \
bool m1##_opt_set : 1; \
bool m2##_opt_set : 1; \
bool m3##_opt_set : 1; \
#define m_option_list_10(t0, m0, t1, m1, t2, m2, \
t3, m3, t4, m4) \
t0 m0##_opt; \
t1 m1##_opt; \
t2 m2##_opt; \
t3 m3##_opt; \
t4 m4##_opt; \
bool m0##_opt_set : 1; \
bool m1##_opt_set : 1; \
bool m2##_opt_set : 1; \
bool m3##_opt_set : 1; \
bool m4##_opt_set : 1; \
#define m_option_list_12(t0, m0, t1, m1, t2, m2, \
t3, m3, t4, m4, t5, m5) \
t0 m0##_opt; \
t1 m1##_opt; \
t2 m2##_opt; \
t3 m3##_opt; \
t4 m4##_opt; \
t5 m5##_opt; \
bool m0##_opt_set : 1; \
bool m1##_opt_set : 1; \
bool m2##_opt_set : 1; \
bool m3##_opt_set : 1; \
bool m4##_opt_set : 1; \
bool m5##_opt_set : 1; \
#define m_option_list_(p_n, ...) m_concatenate(m_option_list_, p_n)(__VA_ARGS__)
#define m_option_list(...) m_option_list_(m_narg(__VA_ARGS__), __VA_ARGS__)
#endif