PO/Library/PackageCache/com.unity.2d.animation@5.0.7/Runtime/UpdateBoundsSystem.cs

117 lines
4.4 KiB
C#

#if ENABLE_ENTITIES
using System.Collections.Generic;
using Unity.Collections;
using Unity.Entities;
using Unity.Jobs;
using Unity.Mathematics;
using UnityEngine.Jobs;
using UnityEngine.U2D.Common;
using UnityEngine.Scripting;
namespace UnityEngine.U2D.Animation
{
[Preserve]
[UnityEngine.ExecuteAlways]
[UpdateInGroup(typeof(PresentationSystemGroup))]
[UpdateAfter(typeof(DeformSpriteSystem))]
internal class UpdateBoundsSystem : ComponentSystem
{
EntityQuery m_ComponentGroup;
protected override void OnCreateManager()
{
m_ComponentGroup = GetEntityQuery(typeof(SpriteSkin));
}
struct Bounds
{
public float4 center;
public float4 extents;
}
struct CalculateBoundsJob : IJobParallelFor
{
[ReadOnly, DeallocateOnJobCompletion]
public NativeArray<float4x4> worldToLocalArray;
[ReadOnly, DeallocateOnJobCompletion]
public NativeArray<float4x4> rootLocalToWorldArray;
public NativeArray<Bounds> boundsArray;
public void Execute(int i)
{
var matrix = math.mul(worldToLocalArray[i], rootLocalToWorldArray[i]);
var center = boundsArray[i].center;
var extents = boundsArray[i].extents;
var p0 = math.mul(matrix, center + new float4(-extents.x, -extents.y, extents.z, extents.w));
var p1 = math.mul(matrix, center + new float4(-extents.x, extents.y, extents.z, extents.w));
var p2 = math.mul(matrix, center + extents);
var p3 = math.mul(matrix, center + new float4(extents.x, -extents.y, extents.z, extents.w));
var min = math.min(p0, math.min(p1, math.min(p2, p3)));
var max = math.max(p0, math.max(p1, math.max(p2, p3)));
extents = (max - min) * 0.5f;
center = min + extents;
boundsArray[i] = new Bounds()
{
center = center,
extents = extents
};
}
}
protected override void OnUpdate()
{
var entityLength = m_ComponentGroup.CalculateLength();
var worldToLocalArray = new NativeArray<float4x4>(entityLength, Allocator.TempJob, NativeArrayOptions.UninitializedMemory);
var rootLocalToWorldArray = new NativeArray<float4x4>(entityLength, Allocator.TempJob, NativeArrayOptions.UninitializedMemory);
var boundsArray = new NativeArray<Bounds>(entityLength, Allocator.TempJob, NativeArrayOptions.UninitializedMemory);
var counter = 0;
Entities.ForEach((Entity entity, SpriteSkin spriteSkin) =>
{
if (spriteSkin.isValid && spriteSkin.spriteRenderer.enabled)
{
worldToLocalArray[counter] = spriteSkin.transform.worldToLocalMatrix;
rootLocalToWorldArray[counter] = spriteSkin.rootBone.localToWorldMatrix;
var unityBounds = spriteSkin.bounds;
boundsArray[counter] = new Bounds()
{
center = new float4(unityBounds.center, 1),
extents = new float4(unityBounds.extents, 0),
};
}
counter++;
});
var jobHandle = new CalculateBoundsJob()
{
worldToLocalArray = worldToLocalArray,
rootLocalToWorldArray = rootLocalToWorldArray,
boundsArray = boundsArray
}.Schedule(entityLength, 32);
jobHandle.Complete();
counter = 0;
Entities.With(m_ComponentGroup).ForEach((Entity entity, SpriteSkin spriteSkin) =>
{
if (spriteSkin.isValid && spriteSkin.spriteRenderer.enabled)
{
var center = boundsArray[counter].center;
var extents = boundsArray[counter].extents;
var bounds = new UnityEngine.Bounds();
bounds.center = new Vector3(center.x, center.y, center.z);
bounds.extents = new Vector3(extents.x, extents.y, extents.z);
InternalEngineBridge.SetLocalAABB(spriteSkin.spriteRenderer, bounds);
}
counter++;
});
boundsArray.Dispose();
return;
}
}
}
#endif