AnimationComponent.h File Reference

Skeletal / transform animation system driven by GLTF keyframe data. More...

#include <memory>
#include <string>
#include <unordered_map>
#include <vector>
#include <glm/gtc/quaternion.hpp>
#include <glm/vec3.hpp>
#include <glm/mat4x4.hpp>
#include "animation/KeyFrame.h"
#include "animation/Pose.h"
#include "scene/Component.h"

Include dependency graph for AnimationComponent.h:

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Classes
struct	mnd::TransformTrack
	Animation data for one GLTF node: position, rotation, and scale tracks. More...
struct	mnd::AnimationClip
	A named, playable animation containing one or more transform tracks. More...
struct	mnd::ObjectBinding
	Runtime binding from a TransformTrack to a live child GameObject. More...
class	mnd::AnimationComponent
	Drives transform animation on a hierarchy of GameObjects. More...

Namespaces
namespace	mnd

Detailed Description

Skeletal / transform animation system driven by GLTF keyframe data.

Data model

AnimationClip
 └── TransformTrack[]   (one per animated GLTF node)
      ├── KeyFrameVec3[] positions
      ├── KeyFrameQuat[] rotations
      └── KeyFrameVec3[] scales

Each track targets a child GameObject by name (targetName). On Play(), AnimationComponent walks the owner's child hierarchy and caches a binding (ObjectBinding) that maps track indices to live GameObjects.

Per-frame playback

Update() advances m_time by deltaTime, linearly interpolates between the surrounding keyframes for each track, and writes the result directly to the target GameObject's local position / rotation / scale.

Loading

AnimationClips are populated by GameObject::LoadGLTF() from the GLTF animation channels, then registered on this component via RegisterClip().

auto *anim = gunObject->GetComponent<AnimationComponent>();
anim->Play("fire", false);   // play once, no loop

See also

GameObject::LoadGLTF, TransformTrack, AnimationClip

Definition in file AnimationComponent.h.