void UTFCharacterMovementComponent
::LedgeCollectionFunct
(const FVector& Start, const FVector& Normal, const float
NumX,const float
NumY)
{
ImpactNormal = Normal;
TArray<int
32> Triangles;
TArray<FVector2D> UVs;
static int
32 CollectCnt = 1;
if
(bStartToCollection && GirdLocation.Num
() > 0
)
{
// 计算当前批次的索引范围
int
32 Batch
Size = GirdLocation.Num
() / 4; // 假设分4批处理
int
32 StartIndex =
(CollectCnt
- 1
) * Batch
Size;
int
32 EndIndex = FMath
::Min
(CollectCnt * Batch
Size, GirdLocation.Num
());
for
(int
32 Index = StartIndex; Index < EndIndex; Index++
)
{
FVector CurrentVertex = GirdLocation[Index];
// 根据GirdLocation绘制矩阵射线检测
{
FRotator InitialRot = FRotationMatrix
::MakeFromX
(ImpactNormal
).Rotator
();
FVector RightVector = InitialRot.RotateVector
(FVector
::RightVector
);
FVector UpVector = InitialRot.RotateVector
(FVector
::UpVector
);
FVector ForwardVector = InitialRot.RotateVector
(FVector
::ForwardVector
);
FRotator FinalRotation = FRotationMatrix
::MakeFromXY
(RightVector, UpVector
).Rotator
();
FVector
Scale(1.0f, 1.0f, 1.0f
);
F
Transform Transform = F
Transform(FinalRotation,Start, FVector
(1.0f, 1.0f, 1.0f
));
F
Transform Inverse
Transform =
Transform.Inverse
();
FVector Local
TransformVector = Inverse
Transform.Inverse
TransformPosition
(CurrentVertex
);
FVector StartLoc = Local
TransformVector + Normal * 100;
FVector EndLoc = Local
TransformVector
- Normal * 100;
FHitResult HitResult;
bool bHit = UKismetSystemLibrary
::SphereTraceSingle
(
GetWorld
(),
StartLoc,
EndLoc,
10.f,
UEngineTypes
::ConvertToTraceType
(ECC_Visibility
),
false,
TArray<AActor* >
(),
EDrawDebugTrace
::None,
HitResult,
true
);
//角度检测
FVector ImpactLoc =
(HitResult.ImpactPoint
- RefLocation
).GetSafeNormal
();
float DotProduct = FVector
::DotProduct
(RefNormal,ImpactLoc
);
float AbsAngleDeg = FMath
::Abs
(FMath
::Acos
(DotProduct
));
if
(AbsAngleDeg < 45.0f
)
{
if
(FVector
::Distance
(HitResult.ImpactPoint ,StartLoc
)>1.0f
)
{
MatrixTraceLocation = HitResult.ImpactPoint;
MatrixTraceNormal = FVector
(HitResult.ImpactNormal.X, HitResult.ImpactNormal.Y, 0
);
}
}
}
/*UE_LOG
(LogTemp, Log, TEXT
("处理顶点 %d
: (%f, %f, %f
)"
),
Index, CurrentVertex.X, CurrentVertex.Y, CurrentVertex.Z
);*/
}
// 准备下一批次
CollectCnt++;
if
(CollectCnt > 4
) // 如果所有批次处理完毕
{
bStartToCollection = false; // 重置状态，下次重新生成网格
CollectCnt = 1;
}
}
else
{
UKismetProceduralMeshLibrary
::CreateGridMeshWelded
( NumX,
NumY, Triangles, GirdLocation, UVs, 16.0f
);
bStartToCollection = true;
CollectCnt = 1;
}
} 代码片段是这个
本文介绍了当浏览器限制字体大小时如何使用CSS的transform:scale属性来调整元素大小的方法及注意事项，包括默认居中缩小的问题解决及应用技巧。
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