#include inc_time.glsl

#ifndef INC_MAGIC
#define INC_MAGIC

vec2 magic_f(vec2 f, vec3 b, float i)
{
    return vec2(
        mix(f.x, randTime(i + 1.), min(1., b.z)),
        mix(f.y, randTime(i + 2.), min(1., b.z))
    );
}

vec2 magic_f(float i)
{
    return magic_f(vec2(0.), vec3(0., 0., 1.), i);
}

vec3 magic_b(vec3 b, float i)
{
    return vec3(
        mix(b.x, step(.2, randTime(i + 3.)), min(1., b.z)),
        mix(b.y, step(.5, randTime(i + 4.)), min(1., b.z)),
        min(1., b.z)
    );
}

vec3 magic_b(float i)
{
    return magic_b(vec3(0., 0., 1.), i);
}

bool magic_trigger(vec3 b, float i)
{
    return magic_b(b, i).x > 0.;
}

bool magic_trigger(float i)
{
    return magic_b(i).x > 0.;
}

float magic(vec2 f, vec3 b, float i)
{
    vec2 mf = magic_f(f, b, i);
    vec3 mb = magic_b(b, i);

    return mix(0., mf.x * mix(1. - modTime(mf.y), cosTime(mf.y) * .5 + .5, mb.y), mb.x);
}

float fmagic(vec2 f, vec3 b, float i)
{
    vec2 mf = magic_f(f, b, i);
    vec3 mb = magic_b(b, i);

    return mf.x * mix(1. - modTime(mf.y), cosTime(mf.y) * .5 + .5, mb.y);
}

float magic(float i)
{
    return magic(vec2(0.), vec3(0., 0., 1.), i);
}

float magic_reverse(vec2 f, vec3 b, float i)
{
    vec2 mf = magic_f(f, b, i);
    vec3 mb = magic_b(b, i);

    return mix(0., mf.x * mix(1. - modTime(mf.y), modTime(mf.y), mb.y), mb.x);
}

float magic_reverse(float i)
{
    return magic_reverse(vec2(0.), vec3(0., 0., 1.), i);
}

#endif