91 lines
2.3 KiB
C
91 lines
2.3 KiB
C
// ----------------------------------------------------------------------------
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// ease
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API float ease_linear(float t);
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API float ease_out_sine(float t);
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API float ease_out_quad(float t);
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API float ease_out_cubic(float t);
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API float ease_out_quart(float t);
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API float ease_out_quint(float t);
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API float ease_out_expo(float t);
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API float ease_out_circ(float t);
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API float ease_out_back(float t);
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API float ease_out_elastic(float t);
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API float ease_out_bounce(float t);
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API float ease_in_sine(float t);
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API float ease_in_quad(float t);
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API float ease_in_cubic(float t);
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API float ease_in_quart(float t);
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API float ease_in_quint(float t);
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API float ease_in_expo(float t);
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API float ease_in_circ(float t);
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API float ease_in_back(float t);
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API float ease_in_elastic(float t);
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API float ease_in_bounce(float t);
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API float ease_inout_sine(float t);
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API float ease_inout_quad(float t);
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API float ease_inout_cubic(float t);
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API float ease_inout_quart(float t);
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API float ease_inout_quint(float t);
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API float ease_inout_expo(float t);
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API float ease_inout_circ(float t);
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API float ease_inout_back(float t);
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API float ease_inout_elastic(float t);
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API float ease_inout_bounce(float t);
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API float ease_inout_perlin(float t);
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enum EASE_FLAGS {
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EASE_LINEAR,
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EASE_SINE,
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EASE_QUAD,
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EASE_CUBIC,
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EASE_QUART,
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EASE_QUINT,
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EASE_EXPO,
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EASE_CIRC,
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EASE_BACK,
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EASE_ELASTIC,
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EASE_BOUNCE,
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EASE_IN,
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EASE_INOUT = EASE_IN * 2,
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EASE_OUT = 0,
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};
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API float ease(float t01, unsigned fn); // / 0-to-1
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API float ease_pong(float t01, unsigned fn); // \ 1-to-0
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API float ease_ping_pong(float t, unsigned fn1, unsigned fn2); // /\ 0-to-1-to-0
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API float ease_pong_ping(float t, unsigned fn1, unsigned fn2); // \/ 1-to-0-to-1
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API const char *ease_enum(unsigned fn);
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API const char**ease_enums();
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// ----------------------------------------------------------------------------
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// tween
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typedef struct tween_keyframe_t {
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int easing_mode;
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float t;
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vec3 v;
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} tween_keyframe_t;
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typedef struct tween_t {
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array(tween_keyframe_t) keyframes;
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vec3 result;
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float time;
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float duration;
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} tween_t;
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API tween_t tween();
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API float tween_update(tween_t *tw, float dt);
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API void tween_reset(tween_t *tw);
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API void tween_destroy(tween_t *tw);
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API void tween_keyframe_set(tween_t *tw, float t, int easing_mode, vec3 v);
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API void tween_keyframe_unset(tween_t *tw, float t);
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