void FSpriteEditorViewportClient::InternalActivateNewMode(ESpriteEditorMode::Type NewMode)
{
CurrentMode = NewMode;
Viewport->InvalidateHitProxy();
UPaperSprite* Sprite = GetSpriteBeingEdited();
FSpriteGeometryEditMode* GeometryEditMode = ModeTools->GetActiveModeTyped<FSpriteGeometryEditMode>(FSpriteGeometryEditMode::EM_SpriteGeometry);
check(GeometryEditMode);
// Note: This has side effects (clearing the selection set, ensuring the geometry is correct if the sprite being edited changed, etc...).
// Do not skip even if the mode is not really changing.
GeometryEditMode->SetGeometryBeingEdited(nullptr, /*bAllowCircles=*/ false, /*bAllowSubtractivePolygons=*/ false);
switch (CurrentMode)
{
case ESpriteEditorMode::ViewMode:
break;
case ESpriteEditorMode::EditSourceRegionMode:
UpdateRelatedSpritesList();
break;
case ESpriteEditorMode::EditCollisionMode:
GeometryEditMode->SetGeometryColors(SpriteEditingConstants::CollisionShapeColor, FLinearColor::White);
if (Sprite != nullptr)
{
GeometryEditMode->SetGeometryBeingEdited(&(Sprite->CollisionGeometry), /*bAllowCircles=*/ true, /*bAllowSubtractivePolygons=*/ false);
}
break;
case ESpriteEditorMode::EditRenderingGeomMode:
GeometryEditMode->SetGeometryColors(SpriteEditingConstants::RenderShapeColor, SpriteEditingConstants::SubtractiveRenderShapeColor);
if (Sprite != nullptr)
{
GeometryEditMode->SetGeometryBeingEdited(&(Sprite->RenderGeometry), /*bAllowCircles=*/ false, /*bAllowSubtractivePolygons=*/ true);
}
break;
}
}
void FSingleTileEditorViewportClient::SetTileIndex(int32 InTileIndex)
{
const int32 OldTileIndex = TileBeingEditedIndex;
const bool bNewIndexValid = (InTileIndex >= 0) && (InTileIndex < TileSet->GetTileCount());
TileBeingEditedIndex = bNewIndexValid ? InTileIndex : INDEX_NONE;
FSpriteGeometryEditMode* GeometryEditMode = ModeTools->GetActiveModeTyped<FSpriteGeometryEditMode>(FSpriteGeometryEditMode::EM_SpriteGeometry);
check(GeometryEditMode);
FSpriteGeometryCollection* GeomToEdit = nullptr;
if (TileBeingEditedIndex != INDEX_NONE)
{
if (FPaperTileMetadata* Metadata = TileSet->GetMutableTileMetadata(InTileIndex))
{
GeomToEdit = &(Metadata->CollisionData);
}
}
// Tell the geometry editor about the new tile (if it exists)
GeometryEditMode->SetGeometryBeingEdited(GeomToEdit, /*bAllowCircles=*/ true, /*bAllowSubtractivePolygons=*/ false);
// Update the visual representation
UPaperSprite* DummySprite = nullptr;
if (TileBeingEditedIndex != INDEX_NONE)
{
DummySprite = NewObject<UPaperSprite>();
DummySprite->SpriteCollisionDomain = ESpriteCollisionMode::None;
DummySprite->PivotMode = ESpritePivotMode::Center_Center;
DummySprite->CollisionGeometry.GeometryType = ESpritePolygonMode::SourceBoundingBox;
DummySprite->RenderGeometry.GeometryType = ESpritePolygonMode::SourceBoundingBox;
FSpriteAssetInitParameters SpriteReinitParams;
SpriteReinitParams.Texture = TileSet->GetTileSheetTexture();
//@TODO: Should analyze the texture (*at a higher level, not per tile click!*) to pick the correct material
FVector2D UV;
TileSet->GetTileUV(TileBeingEditedIndex, /*out*/ UV);
SpriteReinitParams.Offset = FIntPoint((int32)UV.X, (int32)(UV.Y));
SpriteReinitParams.Dimension = TileSet->GetTileSize();
SpriteReinitParams.SetPixelsPerUnrealUnit(1.0f);
DummySprite->InitializeSprite(SpriteReinitParams);
}
PreviewTileSpriteComponent->SetSprite(DummySprite);
// Update the default geometry bounds
const FVector2D HalfTileSize(TileSet->GetTileSize().X * 0.5f, TileSet->GetTileSize().Y * 0.5f);
FBox2D DesiredBounds(ForceInitToZero);
DesiredBounds.Min = -HalfTileSize;
DesiredBounds.Max = HalfTileSize;
GeometryEditMode->SetNewGeometryPreferredBounds(DesiredBounds);
// Zoom to fit when we start editing a tile and weren't before, but leave it alone if we just changed tiles, in case they zoomed in or out further
if ((TileBeingEditedIndex != INDEX_NONE) && (OldTileIndex == INDEX_NONE))
{
RequestFocusOnSelection(/*bInstant=*/ true);
}
// Trigger a details panel customization rebuild
OnSingleTileIndexChanged.Broadcast(TileBeingEditedIndex, OldTileIndex);
// Redraw the viewport
Invalidate();
}
