完善背包配置中的背包预览UI
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@ -3,12 +3,232 @@
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#include "Widgets/BagConfigGridWidget.h"
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#include "ProjectFish/DataAsset/BagShapeAsset.h"
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const float SBagConfigGridWidget::CellSize = 32.0f;
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const float SBagConfigGridWidget::CellSpacing = 2.0f;
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void SBagConfigGridWidget::Construct(const FArguments& InArgs)
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{
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BagConfig = InArgs._BagConfig;
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OnGridCellClicked = InArgs._OnGridCellClicked;
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PreviewSkill = nullptr;
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PreviewX = -1;
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PreviewY = -1;
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ChildSlot
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[
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SNew(SOverlay)
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];
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}
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void SBagConfigGridWidget::RefreshGrid()
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{
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// 强制重绘
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Invalidate(EInvalidateWidget::Paint);
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}
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FReply SBagConfigGridWidget::OnMouseButtonDown(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent)
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{
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if (MouseEvent.GetEffectingButton() == EKeys::LeftMouseButton && BagConfig.IsValid())
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{
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FVector2D LocalPosition = MyGeometry.AbsoluteToLocal(MouseEvent.GetScreenSpacePosition());
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FVector2D GridCell = GetGridCellFromPosition(LocalPosition);
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int32 GridX = FMath::FloorToInt(GridCell.X);
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int32 GridY = FMath::FloorToInt(GridCell.Y);
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if (IsValidGridPosition(GridX, GridY))
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{
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OnGridCellClicked.ExecuteIfBound(GridX, GridY);
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return FReply::Handled();
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}
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}
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return FReply::Unhandled();
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}
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FReply SBagConfigGridWidget::OnMouseMove(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent)
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{
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return FReply::Unhandled();
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}
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int32 SBagConfigGridWidget::OnPaint(const FPaintArgs& Args, const FGeometry& AllottedGeometry,
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const FSlateRect& MyCullingRect, FSlateWindowElementList& OutDrawElements, int32 LayerId,
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const FWidgetStyle& InWidgetStyle, bool bParentEnabled) const
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{
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if (!BagConfig.IsValid() || !BagConfig->BagShapeAsset)
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{
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return LayerId;
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}
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UBagShapeAsset* BagShapeAsset = BagConfig->BagShapeAsset;
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// 绘制背包格子
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for (int32 Y = 0; Y < BagShapeAsset->BagHeight; Y++)
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{
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for (int32 X = 0; X < BagShapeAsset->BagWidth; X++)
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{
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FVector2D CellPos = GetCellPosition(X, Y);
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FVector2D CellSizeVec(CellSize, CellSize);
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// 获取格子颜色
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FLinearColor CellColor = GetCellColor(X, Y);
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// 绘制格子背景
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FSlateDrawElement::MakeBox(
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OutDrawElements,
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LayerId,
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AllottedGeometry.ToPaintGeometry(CellSizeVec, FSlateLayoutTransform(CellPos)),
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FCoreStyle::Get().GetBrush("WhiteBrush"),
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ESlateDrawEffect::None,
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CellColor
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);
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// 绘制格子边框
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FSlateDrawElement::MakeBox(
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OutDrawElements,
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LayerId + 1,
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AllottedGeometry.ToPaintGeometry(CellSizeVec, FSlateLayoutTransform(CellPos)),
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FCoreStyle::Get().GetBrush("Border"),
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ESlateDrawEffect::None,
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FLinearColor::Black
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);
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}
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}
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// 绘制已放置的技能
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for (int32 i = 0; i < BagConfig->PlacedSkills.Num(); i++)
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{
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const FPlacedSkillInfo& PlacedSkill = BagConfig->PlacedSkills[i];
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FVector2D SkillPos = GetCellPosition(PlacedSkill.PositionX, PlacedSkill.PositionY);
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FVector2D SkillSizeVec(GetSkillSizeValue(PlacedSkill.SkillAsset->SkillSize).X * (CellSize + CellSpacing) - CellSpacing,
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GetSkillSizeValue(PlacedSkill.SkillAsset->SkillSize).Y* (CellSize + CellSpacing) - CellSpacing);
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// 绘制技能背景
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FSlateDrawElement::MakeBox(
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OutDrawElements,
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LayerId + 2,
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AllottedGeometry.ToPaintGeometry(SkillSizeVec, FSlateLayoutTransform(SkillPos)),
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FCoreStyle::Get().GetBrush("WhiteBrush"),
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ESlateDrawEffect::None,
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FLinearColor::Blue
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);
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// 绘制技能边框
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FSlateDrawElement::MakeBox(
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OutDrawElements,
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LayerId + 3,
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AllottedGeometry.ToPaintGeometry(SkillSizeVec, FSlateLayoutTransform(SkillPos)),
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FCoreStyle::Get().GetBrush("Border"),
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ESlateDrawEffect::None,
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FLinearColor::White
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);
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// 绘制技能名称
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if (!PlacedSkill.SkillAsset->SkillName.IsEmpty())
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{
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FSlateDrawElement::MakeText(
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OutDrawElements,
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LayerId + 4,
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AllottedGeometry.ToPaintGeometry(SkillSizeVec, FSlateLayoutTransform(SkillPos + FVector2D(4, 4))),
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PlacedSkill.SkillAsset->SkillName,
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FCoreStyle::GetDefaultFontStyle("Regular", 10),
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ESlateDrawEffect::None,
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FLinearColor::White
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);
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}
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}
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// 绘制预览技能
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if (PreviewSkill.IsValid() && PreviewX >= 0 && PreviewY >= 0)
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{
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FVector2D PreviewPos = GetCellPosition(PreviewX, PreviewY);
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FVector2D PreviewSizeVec(GetSkillSizeValue(PreviewSkill->SkillSize).X * (CellSize + CellSpacing) - CellSpacing,
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GetSkillSizeValue(PreviewSkill->SkillSize).Y * (CellSize + CellSpacing) - CellSpacing);
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FLinearColor PreviewColor = FLinearColor::Blue;
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PreviewColor.A = 0.5f; // 半透明
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// 绘制预览背景
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FSlateDrawElement::MakeBox(
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OutDrawElements,
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LayerId + 5,
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AllottedGeometry.ToPaintGeometry(PreviewSizeVec, FSlateLayoutTransform(PreviewPos)),
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FCoreStyle::Get().GetBrush("WhiteBrush"),
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ESlateDrawEffect::None,
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PreviewColor
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);
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// 绘制预览边框（虚线效果）
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FSlateDrawElement::MakeBox(
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OutDrawElements,
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LayerId + 6,
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AllottedGeometry.ToPaintGeometry(PreviewSizeVec, FSlateLayoutTransform(PreviewPos)),
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FCoreStyle::Get().GetBrush("Border"),
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ESlateDrawEffect::None,
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FLinearColor::Yellow
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);
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}
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return LayerId + 7;
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}
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FVector2D SBagConfigGridWidget::ComputeDesiredSize(float X) const
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{
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if (!BagConfig.IsValid() || !BagConfig->BagShapeAsset)
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{
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return FVector2D(100, 100);
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}
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UBagShapeAsset* BagShapeAsset = BagConfig->BagShapeAsset;
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return FVector2D(
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BagShapeAsset->BagWidth * (CellSize + CellSpacing) - CellSpacing,
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BagShapeAsset->BagHeight * (CellSize + CellSpacing) - CellSpacing
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);
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}
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FVector2D SBagConfigGridWidget::GetGridCellFromPosition(const FVector2D& Position) const
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{
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return FVector2D(
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Position.X / (CellSize + CellSpacing),
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Position.Y / (CellSize + CellSpacing)
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);
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}
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bool SBagConfigGridWidget::IsValidGridPosition(int32 X, int32 Y) const
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{
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if (!BagConfig.IsValid() || !BagConfig->BagShapeAsset)
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{
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return false;
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}
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return X >= 0 && X < BagConfig->BagShapeAsset->BagWidth &&
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Y >= 0 && Y < BagConfig->BagShapeAsset->BagHeight;
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}
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FLinearColor SBagConfigGridWidget::GetCellColor(int32 X, int32 Y) const
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{
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if (!BagConfig.IsValid() || !BagConfig->BagShapeAsset)
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{
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return FLinearColor::Gray;
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}
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// 检查格子是否激活
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if (!BagConfig->BagShapeAsset->IsSlotActive(X, Y))
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{
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return FLinearColor(0.2f, 0.2f, 0.2f, 1.0f); // 非激活格子为深灰色
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}
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// 检查是否被技能占用
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int32 SkillIndex = BagConfig->GetSkillAtPosition(X, Y);
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if (SkillIndex >= 0)
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{
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return FLinearColor(0, 0, 1, 1);
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}
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// 空闲格子为浅灰色
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return FLinearColor(0.7f, 0.7f, 0.7f, 1.0f);
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}
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@ -32,17 +32,17 @@ SLATE_END_ARGS()
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void RefreshGrid();
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protected:
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// // Slate重写函数
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// virtual FReply OnMouseButtonDown(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;
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// virtual FReply OnMouseMove(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;
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// virtual int32 OnPaint(const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect,
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// FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled) const override;
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//
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// virtual FVector2D ComputeDesiredSize(float) const override;
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// Slate重写函数
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virtual FReply OnMouseButtonDown(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;
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virtual FReply OnMouseMove(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;
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virtual int32 OnPaint(const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyCullingRect,
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FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& InWidgetStyle, bool bParentEnabled) const override;
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virtual FVector2D ComputeDesiredSize(float) const override;
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private:
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// 背包类引用
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TWeakObjectPtr<UBagConfigAsset> BagClass;
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TWeakObjectPtr<UBagConfigAsset> BagConfig;
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// 回调委托
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FOnGridCellClicked OnGridCellClicked;
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@ -56,10 +56,20 @@ private:
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static const float CellSize;
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static const float CellSpacing;
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// // 工具函数
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// FVector2D GetCellPosition(int32 X, int32 Y) const;
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// FVector2D GetGridCellFromPosition(const FVector2D& Position) const;
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// bool IsValidGridPosition(int32 X, int32 Y) const;
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// FLinearColor GetCellColor(int32 X, int32 Y) const;
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// 工具函数
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FVector2D GetCellPosition(int32 X, int32 Y) const;
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FVector2D GetGridCellFromPosition(const FVector2D& Position) const;
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bool IsValidGridPosition(int32 X, int32 Y) const;
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FLinearColor GetCellColor(int32 X, int32 Y) const;
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// int32 GetSkillAtPosition(int32 X, int32 Y) const;
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};
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inline FVector2D SBagConfigGridWidget::GetCellPosition(int32 X, int32 Y) const
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{
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return FVector2D(
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X * (CellSize + CellSpacing),
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Y * (CellSize + CellSpacing)
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);
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}
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