src/animation.c


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#include "animation.h"
#include "log.h"
#include "maths.h"

// keyframe animation_sample(animation_sampler *sampler, f32 t) {
//   size_t previous_index = 0;
//   f32 previous_time = 0.0;
//   // look forwards
//   // DEBUG("%d\n", sampler->animation.values.kind);
//   TRACE("Total timestamps %d", sampler->animation.n_timestamps);
//   for (u32 i = 0; i < sampler->animation.n_timestamps; i++) {
//     f32 current_time = sampler->animation.timestamps[i];
//     if (current_time > t) {
//       break;
//     }
//     previous_time = sampler->animation.timestamps[i];
//     previous_index = i;
//   }

//   size_t next_index = (previous_index + 1) % sampler->animation.n_timestamps;
//   f32 next_time = sampler->animation.timestamps[next_index];
//   printf("%d %f %d %f\n", previous_index, previous_time, next_index, next_time);

//   keyframe prev_value = sampler->animation.values.values[previous_index];
//   keyframe next_value = sampler->animation.values.values[next_index];

//   printf("%d %d\n", previous_index, next_index);

//   f32 time_diff =
//       sampler->animation.timestamps[next_index] - sampler->animation.timestamps[previous_index];
//   f32 percent = (t - previous_time) / time_diff;

//   quat interpolated_rot =
//       quat_slerp(sampler->animation.values.values[previous_index].rotation,
//                  sampler->animation.values.values[next_index].rotation, percent);

//   return (keyframe){ .rotation = interpolated_rot };
// }