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Game.Prefabs.AnimationMotion

Assembly: Assembly-CSharp.dll
Namespace: Game.Prefabs

Type: struct

Base: System.ValueType, Unity.Entities.IBufferElementData

Summary:
AnimationMotion is a plain IBufferElementData container used by the game's ECS to represent a single motion key (start/end position offsets and start/end rotations) for prefab animations. Each element stores start/end translation offsets (float3) and start/end orientations (quaternion). The type is marked with [InternalBufferCapacity(0)], so the DynamicBuffer holding these elements has no inline capacity and will allocate storage externally when used.

Fields

  • public float3 m_StartOffset
    Stores the starting translation offset for this motion key relative to the animated object.

  • public float3 m_EndOffset
    Stores the ending translation offset for this motion key.

  • public quaternion m_StartRotation
    Stores the starting rotation for this motion key.

  • public quaternion m_EndRotation
    Stores the ending rotation for this motion key.

Properties

  • None.
    This struct exposes only public fields and implements IBufferElementData; it defines no properties.

Constructors

  • Implicit default constructor (public AnimationMotion() provided by the runtime)
    There is no explicit constructor defined in the source. As a value type it has the default parameterless constructor that leaves fields uninitialized to their default values.

Methods

  • None.
    This type is a data container only — it defines no instance or static methods. It is intended to be used inside a DynamicBuffer on an entity.

Usage Example

// Example usage inside a SystemBase or ComponentSystem
protected override void OnUpdate()
{
    Entities.ForEach((Entity entity, ref SomeAnimationTag tag) =>
    {
        // Add or get the buffer for animation motion keys
        var buffer = EntityManager.GetBuffer<AnimationMotion>(entity);

        // Clear and populate with two keys
        buffer.Clear();
        buffer.Add(new AnimationMotion {
            m_StartOffset = new float3(0f, 0f, 0f),
            m_EndOffset = new float3(0f, 1f, 0f),
            m_StartRotation = quaternion.identity,
            m_EndRotation = quaternion.AxisAngle(new float3(0,1,0), math.radians(90f))
        });

        // ... use buffer elements when sampling animation for this entity ...
    }).WithoutBurst().Run();
}

Additional notes: - Types float3 and quaternion come from Unity.Mathematics and are blittable, making this struct suitable for Burst-compiled jobs and efficient ECS usage. - [InternalBufferCapacity(0)] indicates no inline storage; the buffer will allocate memory externally (useful when element counts vary and/or can be large). - Use DynamicBuffer when storing multiple motion keys per entity; iterate the buffer to read/write keys in systems or jobs.