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App/tool/MegaDragger.h

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+/* Copyright 2003-2005 ROBLOX Corporation, All Rights Reserved */
+
+#pragma once
+
+#include "Util/Object.h"
+#include "Util/G3DCore.h"
+#include "Tool/DragUtilities.h"
+#include "Tool/DragTypes.h"
+//#include <vector>
+
+namespace RBX {
+	class Primitive;
+	class PVInstance;
+	class PartInstance;
+	class RootInstance;
+	class ContactManager;
+	class InputObject;
+
+	class MegaDragger 
+	{
+	private:
+		weak_ptr<PartInstance> mousePart;
+		PartArray dragParts;
+
+		// Join/unjoin stuff
+		bool joined;
+		DRAG::JoinType joinType;
+
+		// Workspace stuff
+		RootInstance* rootInstance;
+		ContactManager& contactManager;
+
+		bool moveSafePlaceAlongLine(const Vector3& tryDrag);
+
+	public:
+		MegaDragger(PartInstance* mousePartPtr,
+					const std::vector<PVInstance*>& pvInstances,
+					RootInstance* rootInstance,
+					DRAG::JoinType joinType = DRAG::UNJOIN_JOIN);
+
+		MegaDragger(PartInstance* mousePartPtr,
+					const PartArray& partArray,
+					RootInstance* rootInstance,
+					DRAG::JoinType joinType = DRAG::UNJOIN_JOIN);
+
+
+
+		~MegaDragger();
+
+		void setToSelection(const Workspace* workspace);
+
+		// Drag cycle - start, continue (before every move), finish
+		void startDragging();
+		void continueDragging();							// every drag step/move/idle
+		void finishDragging();
+
+		// Inquiry
+		bool mousePartAlive();
+		bool anyDragPartAlive();
+
+		// Part Dragger
+		weak_ptr<PartInstance> getMousePart() {
+			RBXASSERT(!mousePart.expired());
+			return mousePart;
+		}
+
+		// Group Dragger
+		void alignAndCleanParts();
+		void cleanParts();
+		Vector3 hitObjectOrPlane(const shared_ptr<InputObject>& inputObject);		// ignore the drag parts - find a hit point with the world
+		Vector3 safeMoveYDrop(const Vector3& tryDrag);			// 1. Go directly to new location, 2. Moves down until collision - if necessary, moves up
+
+		// Axis Tools
+		Vector3 safeMoveAlongLine(const Vector3& tryDrag, bool snapToWorld = true);
+		Vector3 safeRotateAlongLine(const Vector3& tryDrag);
+
+		Vector3 safeMoveAlongLine2(const Vector3& tryDrag, bool& out_isCollided);
+		Vector3 safeRotateAlongLine2(const Vector3& tryDrag, const float &angle);
+
+		Vector3 safeMoveToMinimumHeight(float yValue);
+
+		/**
+		 * Rotates drag parts
+		 * @param rotMatrix rotation matrix to apply
+		 * @param respectCollisions if true then check for collision will be done 
+		                            in case of collisions no rotation will be performed
+		 * @return Matrix after rotation
+		 */
+		Matrix3 rotateDragParts(const Matrix3& rotMatrix, bool respectCollisions);
+
+		bool moveAlongLine(const Vector3& tryDrag);
+
+		// General Placement
+		Vector3 safeMoveNoDrop(const Vector3& tryDrag);				// On initial collision - moves up
+		bool safeRotate(const Matrix3& rotMatrix);
+		void removeParts();
+	private:
+		void getPartsForDrag(G3D::Array<Primitive*>& primitives);
+	};
+} // namespace