starmen1265
39512c45b6
- 创建DynamicIronBlock类，支持动态Box网格生成 - 集成BVH加速结构用于快速空间查询 - 添加可配置的Box大小和细分参数 - 更新Build.cs添加GeometryScript相关依赖模块 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
115 lines
2.8 KiB
C++
115 lines
2.8 KiB
C++
// Fill out your copyright notice in the Description page of Project Settings.
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#include "DynamicIronBlock.h"
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#include "Components/DynamicMeshComponent.h"
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#include "DynamicMesh/DynamicMesh3.h"
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#include "GeometryScript/MeshPrimitiveFunctions.h"
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#include "GeometryScript/MeshSpatialFunctions.h"
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#include "GeometryScript/MeshBasicEditFunctions.h"
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ADynamicIronBlock::ADynamicIronBlock()
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{
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// 设置此 Actor 在每帧调用 Tick()
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PrimaryActorTick.bCanEverTick = false;
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// 设置默认的 Box 大小
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BoxSize = FVector(100.0f, 100.0f, 100.0f);
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// 设置 BVH 快速构建选项
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bEnableFastBuild = true;
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}
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void ADynamicIronBlock::BeginPlay()
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{
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Super::BeginPlay();
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}
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void ADynamicIronBlock::OnConstruction(const FTransform& Transform)
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{
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Super::OnConstruction(Transform);
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// 初始化 Box 网格
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InitializeBoxMesh();
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}
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void ADynamicIronBlock::InitializeBoxMesh()
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{
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// 获取 DynamicMeshComponent
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UDynamicMeshComponent* DynMeshComp = GetDynamicMeshComponent();
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if (!DynMeshComp)
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{
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UE_LOG(LogTemp, Error, TEXT("DynamicIronBlock: Failed to get DynamicMeshComponent"));
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return;
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}
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// 获取 DynamicMesh
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UDynamicMesh* DynMesh = DynMeshComp->GetDynamicMesh();
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if (!DynMesh)
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{
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UE_LOG(LogTemp, Error, TEXT("DynamicIronBlock: Failed to get DynamicMesh"));
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return;
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}
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// 清除现有网格
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DynMesh->Reset();
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// 设置 Box 的选项
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FGeometryScriptPrimitiveOptions PrimitiveOptions;
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PrimitiveOptions.PolygroupMode = EGeometryScriptPrimitivePolygroupMode::SingleGroup;
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PrimitiveOptions.bFlipOrientation = false;
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// 创建 Box 的变换
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FTransform BoxTransform = FTransform::Identity;
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// 添加 Box 到网格
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UGeometryScriptLibrary_MeshPrimitiveFunctions::AppendBox(
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DynMesh,
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PrimitiveOptions,
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BoxTransform,
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BoxSize.X,
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BoxSize.Y,
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BoxSize.Z,
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NumSubDivide.X, NumSubDivide.Y, NumSubDivide.Z // X, Y, Z 轴的细分数
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);
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// 通知组件网格已更新
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DynMeshComp->NotifyMeshUpdated();
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// 生成 BVH
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GenerateBVH();
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UE_LOG(LogTemp, Log, TEXT("DynamicIronBlock: Box mesh initialized with size (%f, %f, %f)"),
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BoxSize.X, BoxSize.Y, BoxSize.Z);
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}
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void ADynamicIronBlock::GenerateBVH()
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{
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// 获取 DynamicMeshComponent
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UDynamicMeshComponent* DynMeshComp = GetDynamicMeshComponent();
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if (!DynMeshComp)
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{
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UE_LOG(LogTemp, Error, TEXT("DynamicIronBlock: Failed to get DynamicMeshComponent for BVH generation"));
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return;
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}
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// 获取 DynamicMesh
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UDynamicMesh* DynMesh = DynMeshComp->GetDynamicMesh();
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if (!DynMesh)
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{
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UE_LOG(LogTemp, Error, TEXT("DynamicIronBlock: Failed to get DynamicMesh for BVH generation"));
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return;
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}
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// 构建 BVH
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FGeometryScriptDynamicMeshBVH BVH;
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UGeometryScriptLibrary_MeshSpatial::BuildBVHForMesh(
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DynMesh,
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BVH
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);
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// 可选：重置碰撞
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DynMeshComp->UpdateCollision();
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UE_LOG(LogTemp, Log, TEXT("DynamicIronBlock: BVH generated successfully"));
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} |