v4k-git-backup/engine/split/v4k_time.h

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// -----------------------------------------------------------------------------
// time framework utils
API uint64_t date(); // YYYYMMDDhhmmss
API uint64_t date_epoch(); // linux epoch
API char* date_string(); // "YYYY-MM-DD hh:mm:ss"
API double time_hh();
API double time_mm();
API double time_ss();
API uint64_t time_ms();
API uint64_t time_us();
API uint64_t time_ns();
API void sleep_ss(double ss);
API void sleep_ms(double ms);
API void sleep_us(double us);
API void sleep_ns(double us);
API unsigned timer(unsigned ms, unsigned (*callback)(unsigned ms, void *arg), void *arg);
API void timer_destroy(unsigned timer_handle);
// time sortable unique identifier (similar to ksuid/tuid; others: sno/xid/cuid/ulid)
// - rlyeh, public domain.
//
// also similar to a mongo object id, 12 bytes as follows:
// - 4-byte timestamp (ss). epoch: Tuesday, 12 September 2023 6:06:56
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// - 2-byte (machine, hash or app id)
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// - 2-byte (thread-id)
// - 4-byte (rand counter, that gets increased at every id creation)
typedef vec3i guid;
API guid guid_create();
/*
AUTORUN {
guid g1 = guid_create();
guid g2 = guid_create();
print3i(g1);
hexdump(&g1, sizeof(g1));
print3i(g2);
hexdump(&g2, sizeof(g2));
}
*/
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// ----------------------------------------------------------------------------
// ease
API float ease_nop(float t);
API float ease_linear(float t);
API float ease_out_sine(float t);
API float ease_out_quad(float t);
API float ease_out_cubic(float t);
API float ease_out_quart(float t);
API float ease_out_quint(float t);
API float ease_out_expo(float t);
API float ease_out_circ(float t);
API float ease_out_back(float t);
API float ease_out_elastic(float t);
API float ease_out_bounce(float t);
API float ease_in_sine(float t);
API float ease_in_quad(float t);
API float ease_in_cubic(float t);
API float ease_in_quart(float t);
API float ease_in_quint(float t);
API float ease_in_expo(float t);
API float ease_in_circ(float t);
API float ease_in_back(float t);
API float ease_in_elastic(float t);
API float ease_in_bounce(float t);
API float ease_inout_sine(float t);
API float ease_inout_quad(float t);
API float ease_inout_cubic(float t);
API float ease_inout_quart(float t);
API float ease_inout_quint(float t);
API float ease_inout_expo(float t);
API float ease_inout_circ(float t);
API float ease_inout_back(float t);
API float ease_inout_elastic(float t);
API float ease_inout_bounce(float t);
API float ease_inout_perlin(float t);
enum EASE_FLAGS {
EASE_SINE,
EASE_QUAD,
EASE_CUBIC,
EASE_QUART,
EASE_QUINT,
EASE_EXPO,
EASE_CIRC,
EASE_BACK,
EASE_ELASTIC,
EASE_BOUNCE,
EASE_IN,
EASE_OUT = 0,
EASE_INOUT = EASE_IN * 2,
EASE_NOP = EASE_INOUT | (EASE_BOUNCE + 1),
EASE_LINEAR,
EASE_INOUT_PERLIN,
EASE_NUM
};
API float ease(float t01, unsigned fn); // / 0-to-1
API float ease_pong(float t01, unsigned fn); // \ 1-to-0
API float ease_ping_pong(float t, unsigned fn1, unsigned fn2); // /\ 0-to-1-to-0
API float ease_pong_ping(float t, unsigned fn1, unsigned fn2); // \/ 1-to-0-to-1
API const char *ease_enum(unsigned fn);
API const char**ease_enums();
// ----------------------------------------------------------------------------
// tween
typedef struct tween_keyframe_t {
float t;
vec3 v;
unsigned ease;
} tween_keyframe_t;
typedef struct tween_t {
array(tween_keyframe_t) keyframes;
vec3 result;
float time;
float duration;
} tween_t;
API tween_t tween();
API void tween_setkey(tween_t *tw, float t, vec3 v, unsigned easing_mode);
API void tween_delkey(tween_t *tw, float t);
API float tween_update(tween_t *tw, float dt);
API void tween_reset(tween_t *tw);
API void tween_destroy(tween_t *tw);
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// ----------------------------------------------------------------------------
// curve
typedef struct curve_t {
array(float) lengths;
array(unsigned) colors;
array(vec3) samples;
array(vec3) points;
array(int) indices;
} curve_t;
API curve_t curve();
API void curve_add(curve_t *c, vec3 p);
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API void curve_end(curve_t *c, int num_points);
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API vec3 curve_eval(curve_t *c, float dt, unsigned *color);
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API void curve_destroy(curve_t *c);