void KeyFrameAnimation::Update(float deltaTime) {
if (HasEnded()) return;
currentTime += deltaTime;
currentFrame = GetCurrentKeyFrame(currentFrame);
if (currentFrame == keyFrames.size() - 1) {
currentRepeat++;
if (HasEnded()) {
currentFrame--; // step to the last frame (vs return)
}
else {
currentTime = std::fmod(currentTime, keyFrames[currentFrame].time); // or = 0 for animation reset on repeat
currentFrame = GetCurrentKeyFrame(0);
}
}
KeyFrame& first = keyFrames[currentFrame ];
KeyFrame& second = keyFrames[currentFrame + 1];
float amount = GetTransition(first, second);
DoLerp(first, second, amount);
}
constexpr bool IsInside(RoughTime now) const {
return HasBegun(now) && !HasEnded(now);
}