const AnimPoseVec& AnimBlendLinearMove::evaluate(const AnimVariantMap& animVars, float dt, Triggers& triggersOut) {
assert(_children.size() == _characteristicSpeeds.size());
_alpha = animVars.lookup(_alphaVar, _alpha);
_desiredSpeed = animVars.lookup(_desiredSpeedVar, _desiredSpeed);
if (_children.size() == 0) {
for (auto&& pose : _poses) {
pose = AnimPose::identity;
}
} else if (_children.size() == 1) {
const float alpha = 0.0f;
const int prevPoseIndex = 0;
const int nextPoseIndex = 0;
float prevDeltaTime, nextDeltaTime;
setFrameAndPhase(dt, alpha, prevPoseIndex, nextPoseIndex, &prevDeltaTime, &nextDeltaTime, triggersOut);
evaluateAndBlendChildren(animVars, triggersOut, alpha, prevPoseIndex, nextPoseIndex, prevDeltaTime, nextDeltaTime);
} else {
float clampedAlpha = glm::clamp(_alpha, 0.0f, (float)(_children.size() - 1));
size_t prevPoseIndex = glm::floor(clampedAlpha);
size_t nextPoseIndex = glm::ceil(clampedAlpha);
float alpha = glm::fract(clampedAlpha);
float prevDeltaTime, nextDeltaTime;
setFrameAndPhase(dt, alpha, prevPoseIndex, nextPoseIndex, &prevDeltaTime, &nextDeltaTime, triggersOut);
evaluateAndBlendChildren(animVars, triggersOut, alpha, prevPoseIndex, nextPoseIndex, prevDeltaTime, nextDeltaTime);
}
return _poses;
}
const AnimPoseVec& AnimBlendLinear::evaluate(const AnimVariantMap& animVars, float dt, Triggers& triggersOut) {
_alpha = animVars.lookup(_alphaVar, _alpha);
if (_children.size() == 0) {
for (auto&& pose : _poses) {
pose = AnimPose::identity;
}
} else if (_children.size() == 1) {
_poses = _children[0]->evaluate(animVars, dt, triggersOut);
} else {
float clampedAlpha = glm::clamp(_alpha, 0.0f, (float)(_children.size() - 1));
size_t prevPoseIndex = glm::floor(clampedAlpha);
size_t nextPoseIndex = glm::ceil(clampedAlpha);
float alpha = glm::fract(clampedAlpha);
evaluateAndBlendChildren(animVars, triggersOut, alpha, prevPoseIndex, nextPoseIndex, dt);
}
return _poses;
}
