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#include <glib.h>
#include "animate.h"
double quadratic_bezier(double x, double a, double b, double c)
{
g_assert(x >= 0 && x <= 1);
g_assert(a >= 0 && a <= 1);
g_assert(b >= 0 && b <= 1);
g_assert(c >= 0 && c <= 1);
const double t = 1 - x;
return a * t * t + 2 * b * t * x + c * x * x;
}
double cubic_bezier(double x, double a, double b, double c, double d)
{
g_assert(x >= 0 && x <= 1);
g_assert(a >= 0 && a <= 1);
g_assert(b >= 0 && b <= 1);
g_assert(c >= 0 && c <= 1);
g_assert(d >= 0 && d <= 1);
const double t = 1 - x;
return a * (t * t * t) + 3 * b * (t * t * x) + 3 * c * (t * x * x) + d * (x * x * x);
}
Animation *animation_create()
{
Animation *anim = g_malloc0(sizeof(Animation));
// TODO
return anim;
}
void animation_destroy(Animation *anim)
{
g_free(anim);
}
// vim: ts=4 sw=4 et
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