leocad/common/piece.h

#pragma once

class lcPieceData;

#include "object.h"
#include "lc_colors.h"
#include "lc_math.h"
#include "lc_assettypes.h"

#define LC_MAX_CONTROL_POINTS 1000

enum lcPieceSection : quint32
{
	LC_PIECE_SECTION_INVALID = LC_OBJECT_SECTION_INVALID,
	LC_PIECE_SECTION_POSITION = 0,
	LC_PIECE_SECTION_CONTROL_POINT_FIRST,
	LC_PIECE_SECTION_CONTROL_POINT_LAST = LC_PIECE_SECTION_CONTROL_POINT_FIRST + LC_MAX_CONTROL_POINTS - 1,
	LC_PIECE_SECTION_TRAIN_TRACK_CONNECTION_FIRST = 1
};

struct lcPieceControlPoint
{
	lcMatrix44 Transform;
	float Scale;

	bool operator==(const lcPieceControlPoint& Other) const
	{
		return Transform == Other.Transform && Scale == Other.Scale;
	}
};

struct lcPieceHistoryState
{
	lcObjectId Id;
	bool Hidden;
	int FileLine;
	QString PieceId;
	uint32_t GroupId;
	int ColorIndex;
	quint32 ColorCode;
	lcStep StepShow;
	lcStep StepHide;
	lcMatrix44 PivotMatrix;
	bool PivotPointValid;
	std::vector<lcPieceControlPoint> ControlPoints;
	lcObjectProperty<lcVector3> Position;
	lcObjectProperty<lcMatrix33> Rotation;

	bool operator==(const lcPieceHistoryState& Other) const
	{
		return Id == Other.Id && Hidden == Other.Hidden && FileLine == Other.FileLine && PieceId == Other.PieceId &&
            GroupId == Other.GroupId && ColorIndex == Other.ColorIndex && ColorCode == Other.ColorCode &&
            StepShow == Other.StepShow && StepHide == Other.StepHide && PivotMatrix == Other.PivotMatrix &&
            PivotPointValid == Other.PivotPointValid && ControlPoints == Other.ControlPoints &&
            Position == Other.Position && Rotation == Other.Rotation;
	}
};

class lcPiece : public lcObject
{
public:
	lcPiece();
	lcPiece(lcPieceData* PieceData);
	lcPiece(lcPieceDataRef PieceDataRef);
	lcPiece(const lcPiece& Other);
	virtual ~lcPiece();

	lcPiece(lcPiece&&) = delete;
	lcPiece& operator=(const lcPiece&) = delete;
	lcPiece& operator=(lcPiece&&) = delete;

	quint32 GetAllowedTransforms() const override;
	lcVector3 GetSectionPosition(quint32 Section) const override;

	void SaveLDraw(QTextStream& Stream) const;
	bool ParseLDrawLine(QTextStream& Stream);

	void SetFileLine(int Line)
	{
		mFileLine = Line;
	}

	int GetFileLine() const
	{
		return mFileLine;
	}

	void RayTest(lcObjectRayTest& ObjectRayTest) const override;
	void BoxTest(lcObjectBoxTest& ObjectBoxTest) const override;
	bool MinIntersectDist(const lcVector3& Start, const lcVector3& End, float& MinDistance, lcPieceRayTest& PieceRayTest) const;
	bool IntersectsPlanes(const lcMatrix44& WorldMatrix, const lcVector4 Planes[6]) const;
	void DrawInterface(lcContext* Context, const lcScene& Scene) const override;
	QVariant GetPropertyValue(lcObjectPropertyId PropertyId) const override;
	bool SetPropertyValue(lcObjectPropertyId PropertyId, lcStep Step, bool AddKey, QVariant Value) override;
	bool HasKeyFrame(lcObjectPropertyId PropertyId, lcStep Time) const override;
	lcStep GetLastStep() const override;
	bool SetKeyFrame(lcObjectPropertyId PropertyId, lcStep Time, bool KeyFrame) override;
	void RemoveKeyFrames() override;
	lcPieceHistoryState GetHistoryState() const;
	void SetHistoryState(const lcPieceHistoryState& State, Project* Project, lcGroup* Group);

	void AddMainModelRenderMeshes(lcScene* Scene, bool Highlight, bool Fade) const;
	void AddSubModelRenderMeshes(lcScene* Scene, const lcMatrix44& WorldMatrix, int DefaultColorIndex, lcRenderMeshState RenderMeshState, bool ParentActive) const;
	void SubModelCompareBoundingBox(const lcMatrix44& WorldMatrix, lcVector3& Min, lcVector3& Max) const;
	void SubModelAddBoundingBoxPoints(const lcMatrix44& WorldMatrix, std::vector<lcVector3>& Points, lcGeometryBoundsMode Mode) const;

	void InsertTime(lcStep Start, lcStep Time);
	void RemoveTime(lcStep Start, lcStep Time);

	bool IsHidden() const
	{
		return mHidden;
	}

	void SetHidden(bool Hidden)
	{
		mHidden = Hidden;
	}

	const std::vector<lcPieceControlPoint>& GetControlPoints() const
	{
		return mControlPoints;
	}

	void SetControlPoints(const std::vector<lcPieceControlPoint>& ControlPoints)
	{
		mControlPoints = ControlPoints;
		UpdateMesh();
	}

	void SetControlPointScale(int ControlPointIndex, float Scale)
	{
		mControlPoints[ControlPointIndex].Scale = Scale;
		UpdateMesh();
	}

	bool IsTrainTrackConnected(int ConnectionIndex) const
	{
		return mTrainTrackConnections[ConnectionIndex];
	}

	void SetTrainTrackConnections(std::vector<bool>&& Connections)
	{
		mTrainTrackConnections = std::move(Connections);
	}

	const QString& GetID() const
	{
		return mID;
	}

	void UpdateID();

	QString GetName() const override;
	bool IsVisible(lcStep Step) const;
	bool IsVisibleInSubModel() const;

	bool AreTrainTrackConnectionsVisible() const
	{
		return IsFocused();
	}

	void GetModelParts(const lcMatrix44& WorldMatrix, int DefaultColorIndex, std::vector<lcModelPartsEntry>& ModelParts) const;
	void Initialize(const lcMatrix44& WorldMatrix, lcStep Step);
	const lcBoundingBox& GetBoundingBox() const;
	void CompareBoundingBox(lcVector3& Min, lcVector3& Max) const;
	void SetPieceData(lcPieceDataRef PieceDataRef, const QString& ID, bool Wait, bool UpdateSynthInfo);
	bool SetPieceId(lcPieceData* PieceData);
	bool FileLoad(lcFile& file, Project* Project);

	void UpdatePosition(lcStep Step) override;
	void MoveSelected(lcStep Step, bool AddKey, const lcVector3& Distance);
	void Rotate(lcStep Step, bool AddKey, const lcMatrix33& RotationMatrix, const lcVector3& Center, const lcMatrix33& RotationFrame);
	void MovePivotPoint(const lcVector3& Distance);
	void RotatePivotPoint(const lcMatrix33& RotationMatrix);

	bool CanAddControlPoint() const;
	bool CanRemoveControlPoint() const;

	bool InsertControlPoint(const lcVector3& WorldStart, const lcVector3& WorldEnd);
	bool RemoveFocusedControlPoint();
	void VerifyControlPoints(std::vector<lcPieceControlPoint>& ControlPoints) const;
	bool IsGeneratedMeshPending() const { return mSynthPending; }
	// An older mesh may remain visible while its replacement is pending.
	bool HasGeneratedMesh() const { return mMesh != nullptr && !mSynthPending; }
	void SetGeneratedMesh(lcMesh* Mesh);
	void RefreshGeneratedMesh();

	lcGroup* GetTopGroup();

	void SetGroup(lcGroup* Group)
	{
		mGroup = Group;
	}

	lcGroup* GetGroup() const
	{
		return mGroup;
	}

	lcStep GetStepShow() const
	{
		return mStepShow;
	}

	lcStep GetStepHide() const
	{
		return mStepHide;
	}

	void SetStepHide(lcStep Step)
	{
		if (Step < 2)
			Step = 2;

		mStepHide = Step;

		if (mStepHide <= mStepShow)
			SetStepShow(mStepHide - 1);
	}

	void SetStepShow(lcStep Step)
	{
		if (Step == LC_STEP_MAX)
			Step = LC_STEP_MAX - 1;

		if (mStepShow != Step)
		{
			mFileLine = -1;
			mStepShow = Step;
		}

		if (mStepHide <= mStepShow)
			mStepHide = mStepShow + 1;
	}

	quint32 GetColorCode() const
	{
		return mColorCode;
	}

	void SetColorCode(quint32 ColorCode)
	{
		mColorCode = ColorCode;
		mColorIndex = lcGetColorIndex(ColorCode);
	}

	int GetColorIndex() const
	{
		return mColorIndex;
	}

	bool SetColorIndex(int ColorIndex)
	{
		if (mColorIndex == ColorIndex)
			return false;

		mColorIndex = ColorIndex;
		mColorCode = lcGetColorCode(ColorIndex);

		return true;
	}

	void SetPosition(const lcVector3& Position, lcStep Step, bool AddKey)
	{
		mPosition.ChangeKey(Position, Step, AddKey);
	}

	void SetRotation(const lcMatrix33& Rotation, lcStep Step, bool AddKey)
	{
		mRotation.ChangeKey(Rotation, Step, AddKey);
	}

	lcVector3 GetRotationCenter() const;
	lcMatrix33 GetRelativeRotation() const;

	void ResetPivotPoint()
	{
		mPivotPointValid = false;
		mPivotMatrix = lcMatrix44Identity();
	}

public:
	lcPieceDataRef mPieceData;

	lcMatrix44 mModelWorld;
	lcMatrix44 mPivotMatrix = lcMatrix44Identity();

protected:
	void UpdateMesh();
	lcMesh* GetDisplayMesh() const;

	bool IsPivotPointVisible() const
	{
		return mPivotPointValid && IsFocused();
	}

	bool AreControlPointsVisible() const
	{
		return IsSelected();
	}

	void DrawSynthInterface(lcContext* Context, const lcMatrix44& WorldMatrix) const;

	lcObjectProperty<lcVector3> mPosition = lcObjectProperty<lcVector3>(lcVector3(0.0f, 0.0f, 0.0f));
	lcObjectProperty<lcMatrix33> mRotation = lcObjectProperty<lcMatrix33>(lcMatrix33Identity());

	int mFileLine = -1;
	QString mID;

	lcGroup* mGroup = nullptr;

	int mColorIndex;
	quint32 mColorCode;

	lcStep mStepShow = 1;
	lcStep mStepHide = LC_STEP_MAX;

	bool mPivotPointValid = false;
	std::vector<lcPieceControlPoint> mControlPoints;
	std::vector<bool> mTrainTrackConnections;
	lcMesh* mMesh = nullptr;
	bool mSynthPending = false;
};