HWND CFindPanel::CreatePane(HWND hParent, int nBarHeight)
{
	ResetSearch();

	if (mh_Pane && IsWindow(mh_Pane))
		return mh_Pane;

	if (!RegisterPaneClass())
		return NULL;

	_ASSERTE(mh_Edit==NULL);
	mh_Edit = NULL;

	mn_RebarHeight = nBarHeight;

	int nShiftY = SearchCtrlShift; //gpSetCls->EvalSize(SearchCtrlShift, esf_Vertical|esf_CanUseDpi);
	int nHeight = nBarHeight - (2 * nShiftY);
	int nWidth = nBarHeight * SearchCtrlWidthMul;

	mh_Pane = CreateWindowEx(WS_EX_CONTROLPARENT,
		FindPanelClass, L"",
		WS_CHILD|WS_VISIBLE,
		0, nShiftY, nWidth, nHeight, hParent, NULL, NULL, this);

	return mh_Pane;
}
// set up the starting point of the search
IPath::SearchResult IPathFinder::InitSearch(const MoveDef& moveDef, const CPathFinderDef& pfDef, const CSolidObject* owner)
{
	int2 square = mStartBlock;

	if (isEstimator)
		square = blockStates.peNodeOffsets[moveDef.pathType][mStartBlockIdx];

	const bool isStartGoal = pfDef.IsGoal(square.x, square.y);
	const bool startInGoal = pfDef.startInGoalRadius;

	// although our starting square may be inside the goal radius, the starting coordinate may be outside.
	// in this case we do not want to return CantGetCloser, but instead a path to our starting square.
	if (isStartGoal && startInGoal)
		return IPath::CantGetCloser;

	// no, clean the system from last search
	ResetSearch();

	// mark and store the start-block
	blockStates.nodeMask[mStartBlockIdx] &= PATHOPT_OBSOLETE; // clear all except PATHOPT_OBSOLETE
	blockStates.nodeMask[mStartBlockIdx] |= PATHOPT_OPEN;
	blockStates.fCost[mStartBlockIdx] = 0.0f;
	blockStates.gCost[mStartBlockIdx] = 0.0f;
	blockStates.SetMaxCost(NODE_COST_F, 0.0f);
	blockStates.SetMaxCost(NODE_COST_G, 0.0f);

	dirtyBlocks.push_back(mStartBlockIdx);

	// start a new search and
	// add the starting block to the open-blocks-queue
	openBlockBuffer.SetSize(0);
	PathNode* ob = openBlockBuffer.GetNode(openBlockBuffer.GetSize());
		ob->fCost   = 0.0f;
		ob->gCost   = 0.0f;
		ob->nodePos = mStartBlock;
		ob->nodeNum = mStartBlockIdx;
	openBlocks.push(ob);

	// mark starting point as best found position
	mGoalBlockIdx  = mStartBlockIdx;
	mGoalHeuristic = pfDef.Heuristic(square.x, square.y);

	// perform the search
	const IPath::SearchResult result = DoSearch(moveDef, pfDef, owner);

	if (result == IPath::Ok)
		return result;
	if (mGoalBlockIdx != mStartBlockIdx)
		return result;

	// if start and goal are within the same block, but distinct squares
	// or considered a single point for search purposes, then we probably
	// can not get closer
	return (!isStartGoal || startInGoal)? IPath::CantGetCloser: result;
}
Exemple #3
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/**
 * @function InitSearch
 */
void LJM2::InitSearch() {

	printf("Start Init Search \n");

	//-- Reset the Hash Table for OpenSet and OpenSet
	mHT = new int[mNumNodes];
	std::fill( mHT, mHT + mNumNodes, -1 );

    ResetSearch();
	printf("Finishing Init Search \n");
}
Exemple #4
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IPath::SearchResult CPathFinder::InitSearch(const MoveDef& moveDef, const CPathFinderDef& pfDef, int ownerId, bool synced) {
	// If exact path is reqired and the goal is blocked, then no search is needed.
	if (exactPath && pfDef.GoalIsBlocked(moveDef, CMoveMath::BLOCK_STRUCTURE))
		return IPath::CantGetCloser;

	// Clamp the start position
	if (startxSqr <         0) { startxSqr =            0; }
	if (startxSqr >= gs->mapx) { startxSqr = gs->mapxm1; }
	if (startzSqr <         0) { startzSqr =            0; }
	if (startzSqr >= gs->mapy) { startzSqr = gs->mapym1; }

	const bool isStartGoal = pfDef.IsGoal(startxSqr, startzSqr);
	// although our starting square may be inside the goal radius, the starting coordinate may be outside.
	// in this case we do not want to return CantGetCloser, but instead a path to our starting square.
	if (isStartGoal && pfDef.startInGoalRadius)
		return IPath::CantGetCloser;

	// Clear the system from last search.
	ResetSearch();

	// Marks and store the start-square.
	squareStates.nodeMask[startSquare] = (PATHOPT_START | PATHOPT_OPEN);
	squareStates.fCost[startSquare] = 0.0f;
	squareStates.gCost[startSquare] = 0.0f;
	squareStates.SetMaxFCost(0.0f);
	squareStates.SetMaxGCost(0.0f);

	dirtySquares.push_back(startSquare);

	// Make the beginning the fest square found.
	goalSquare = startSquare;
	goalHeuristic = pfDef.Heuristic(startxSqr, startzSqr);

	// Adding the start-square to the queue.
	openSquareBuffer.SetSize(0);
	PathNode* os = openSquareBuffer.GetNode(openSquareBuffer.GetSize());
		os->fCost     = 0.0f;
		os->gCost     = 0.0f;
		os->nodePos.x = startxSqr;
		os->nodePos.y = startzSqr;
		os->nodeNum   = startSquare;
	openSquares.push(os);

	// perform the search
	IPath::SearchResult result = DoSearch(moveDef, pfDef, ownerId, synced);

	// if no improvements are found, then return CantGetCloser instead
	if ((goalSquare == startSquare && (!isStartGoal || pfDef.startInGoalRadius)) || goalSquare == 0) {
		return IPath::CantGetCloser;
	}

	return result;
}
Exemple #5
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// set up the starting point of the search
IPath::SearchResult CPathFinder::InitSearch(const MoveData& moveData, const CPathFinderDef& pfDef, int ownerId, bool synced) {
	// If exact path is reqired and the goal is blocked, then no search is needed.
	if (exactPath && pfDef.GoalIsBlocked(moveData, (CMoveMath::BLOCK_STRUCTURE | CMoveMath::BLOCK_TERRAIN)))
		return IPath::CantGetCloser;

	// Clamp the start position
	if (startxSqr <         0) { startxSqr =            0; }
	if (startxSqr >= gs->mapx) { startxSqr = gs->mapx - 1; }
	if (startzSqr <         0) { startzSqr =            0; }
	if (startzSqr >= gs->mapy) { startzSqr = gs->mapy - 1; }

	// If the starting position is a goal position, then no search need to be performed.
	if (pfDef.IsGoal(startxSqr, startzSqr))
		return IPath::CantGetCloser;

	// Clear the system from last search.
	ResetSearch();

	// Marks and store the start-square.
	squareStates[startSquare].nodeMask = (PATHOPT_START | PATHOPT_OPEN);
	squareStates[startSquare].fCost = 0.0f;
	squareStates[startSquare].gCost = 0.0f;
	squareStates.SetMaxFCost(0.0f);
	squareStates.SetMaxGCost(0.0f);

	dirtySquares.push_back(startSquare);

	// Make the beginning the fest square found.
	goalSquare = startSquare;
	goalHeuristic = pfDef.Heuristic(startxSqr, startzSqr);

	// Adding the start-square to the queue.
	openSquareBuffer.SetSize(0);
	PathNode* os = openSquareBuffer.GetNode(openSquareBuffer.GetSize());
		os->fCost     = 0.0f;
		os->gCost     = 0.0f;
		os->nodePos.x = startxSqr;
		os->nodePos.y = startzSqr;
		os->nodeNum   = startSquare;
	openSquares.push(os);

	// perform the search
	IPath::SearchResult result = DoSearch(moveData, pfDef, ownerId, synced);

	// if no improvements are found, then return CantGetCloser instead
	if (goalSquare == startSquare || goalSquare == 0) {
		return IPath::CantGetCloser;
	}

	return result;
}
Exemple #6
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IPathFinder::IPathFinder(unsigned int _BLOCK_SIZE)
	: BLOCK_SIZE(_BLOCK_SIZE)
	, BLOCK_PIXEL_SIZE(BLOCK_SIZE * SQUARE_SIZE)
	, nbrOfBlocks(mapDims.mapx / BLOCK_SIZE, mapDims.mapy / BLOCK_SIZE)
	, mStartBlockIdx(0)
	, mGoalBlockIdx(0)
	, mGoalHeuristic(0.0f)
	, maxBlocksToBeSearched(0)
	, testedBlocks(0)
	, instanceIndex(pathFinderInstances.size())
{
	pathFinderInstances.push_back(this);

	AllocStateBuffer();
	ResetSearch();
}
Exemple #7
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// set up the starting point of the search
IPath::SearchResult CPathEstimator::InitSearch(const MoveData& moveData, const CPathFinderDef& peDef, bool synced) {
	// is starting square inside goal area?
	const int xSquare = blockStates[startBlocknr].nodeOffsets[moveData.pathType].x;
	const int zSquare = blockStates[startBlocknr].nodeOffsets[moveData.pathType].y;

	if (peDef.IsGoal(xSquare, zSquare))
		return IPath::CantGetCloser;

	// no, clean the system from last search
	ResetSearch();

	// mark and store the start-block
	blockStates[startBlocknr].nodeMask |= PATHOPT_OPEN;
	blockStates[startBlocknr].fCost = 0.0f;
	blockStates[startBlocknr].gCost = 0.0f;
	blockStates.SetMaxFCost(0.0f);
	blockStates.SetMaxGCost(0.0f);

	dirtyBlocks.push_back(startBlocknr);

	openBlockBuffer.SetSize(0);
	// add the starting block to the open-blocks-queue
	PathNode* ob = openBlockBuffer.GetNode(openBlockBuffer.GetSize());
		ob->fCost   = 0.0f;
		ob->gCost   = 0.0f;
		ob->nodePos = startBlock;
		ob->nodeNum = startBlocknr;
	openBlocks.push(ob);

	// mark starting point as best found position
	goalBlock = startBlock;
	goalHeuristic = peDef.Heuristic(xSquare, zSquare);

	// get the goal square offset
	goalSqrOffset = peDef.GoalSquareOffset(BLOCK_SIZE);

	// perform the search
	IPath::SearchResult result = DoSearch(moveData, peDef, synced);

	// if no improvements are found, then return CantGetCloser instead
	if (goalBlock.x == startBlock.x && goalBlock.y == startBlock.y) {
		return IPath::CantGetCloser;
	}

	return result;
}
/*
Setting up the starting point of the search.
*/
IPath::SearchResult CPathFinder::InitSearch(const MoveData& moveData, const CPathFinderDef& pfDef) {
    //If exact path is reqired and the goal is blocked, then no search is needed.
    if(exactPath && pfDef.GoalIsBlocked(moveData, (CMoveMath::BLOCK_STRUCTURE | CMoveMath::BLOCK_TERRAIN)))
        return CantGetCloser;

    //Clamp the start position
    if (startxSqr < 0) startxSqr=0;
    if (startxSqr >= gs->mapx) startxSqr = gs->mapx-1;
    if (startzSqr < 0) startzSqr =0;
    if (startzSqr >= gs->mapy) startzSqr = gs->mapy-1;

    //If the starting position is a goal position, then no search need to be performed.
    if(pfDef.IsGoal(startxSqr, startzSqr))
        return CantGetCloser;

    //Clearing the system from last search.
    ResetSearch();

    //Marks and store the start-square.
    squareState[startSquare].status = (PATHOPT_START | PATHOPT_OPEN);
    squareState[startSquare].cost = 0;
    dirtySquares.push_back(startSquare);

    //Make the beginning the fest square found.
    goalSquare = startSquare;
    goalHeuristic = pfDef.Heuristic(startxSqr, startzSqr);

    //Adding the start-square to the queue.
    openSquareBufferPointer = &openSquareBuffer[0];
    OpenSquare *os = openSquareBufferPointer;	//Taking first OpenSquare in buffer.
    os->currentCost = 0;
    os->cost = 0;
    os->square.x = startxSqr;
    os->square.y = startzSqr;
    os->sqr = startSquare;
    openSquares.push(os);

    //Performs the search.
    SearchResult result = DoSearch(moveData, pfDef);

    //If no improvement has been found then return CantGetCloser instead.
    if(goalSquare == startSquare || goalSquare == 0) {
        return CantGetCloser;
    } else
        return result;
}
Exemple #9
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/**
 * @function FindVarietyPaths2
 * @brief Using Free Space
 */
std::vector< std::vector<Eigen::Vector3i> > LJM2::FindVarietyPaths2( int _x1, int _y1, int _z1,
									   			   	  		        int _x2, int _y2, int _z2, 
																    int _times, float _alpha ) {

	mAlpha = _alpha;
	std::vector< std::vector<Eigen::Vector3i> > paths;
    std::vector<Eigen::Vector3i> path;
	std::vector< std::vector<int> > nodePaths;
	std::vector<int> allNodePaths;

	time_t ts; time_t tf; double dt; 
	//-- Find the nearest points
	int startIndex = ref( _x1, _y1, _z1 );
	int targetIndex = ref( _x2, _y2, _z2 );

	printf("--> Start: %d Target: %d \n", startIndex, targetIndex );	

	InitSearch();

	for( size_t i = 0; i < _times; ++i ) {

		path.resize(0);
        //ts = clock();
		path = FindPath( startIndex, targetIndex );
        //tf = clock();
        printf("--[%d] Found Path of size %d \n", i, path.size() ); 
        //printf(" Time elapsed: %.3f  \n", (double) (tf - ts)/CLOCKS_PER_SEC );
		paths.push_back( path );
		nodePaths.push_back( mPath );

		//-- Update the values
        //ts = clock();
		ResetSearch();
        //tf = clock();
        //printf("--[%d] Search : Time elapsed: %.3f  \n", i, (double) (tf - ts)/CLOCKS_PER_SEC );
		allNodePaths = JoinPaths( nodePaths );
        ts = clock();
		UpdateNodeValues( allNodePaths ); 
        //tf = clock();
        //printf("--[%d] UpdateNodes : Time elapsed: %.3f  \n", i, (double) (tf - ts)/CLOCKS_PER_SEC );
	}

	return paths;
}
Exemple #10
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/**
 * Make some initial calculations and preparations
 */
IPath::SearchResult CPathEstimator::InitSearch(const MoveData& moveData, const CPathFinderDef& peDef) {
	// is starting square inside goal area?
	int xSquare = blockState[startBlocknr].sqrCenter[moveData.pathType].x;
	int zSquare = blockState[startBlocknr].sqrCenter[moveData.pathType].y;
	if (peDef.IsGoal(xSquare, zSquare))
		return CantGetCloser;

	// no, clean the system from last search
	ResetSearch();

	// mark and store the start-block
	blockState[startBlocknr].options |= PATHOPT_OPEN;
	blockState[startBlocknr].cost = 0;
	dirtyBlocks.push_back(startBlocknr);

	openBlockBufferIndex = 0;
	// add the starting block to the open-blocks-queue
	OpenBlock* ob = &openBlockBuffer[openBlockBufferIndex];
		ob->cost = 0;
		ob->currentCost = 0;
		ob->block = startBlock;
		ob->blocknr = startBlocknr;
	openBlocks.push(ob);

	// mark starting point as best found position
	goalBlock = startBlock;
	goalHeuristic = peDef.Heuristic(xSquare, zSquare);

	// get the goal square offset
	goalSqrOffset = peDef.GoalSquareOffset(BLOCK_SIZE);

	// perform the search
	SearchResult result = DoSearch(moveData, peDef);

	// if no improvements are found, then return CantGetCloser instead
	if (goalBlock.x == startBlock.x && goalBlock.y == startBlock.y)
		return CantGetCloser;
	else
		return result;
}
/*
Making some initial calculations and preparations.
*/
IPath::SearchResult CPathEstimator::InitSearch(const MoveData& moveData, const CPathFinderDef& peDef) {
	//Starting square is inside goal area?
	int xSquare = blockState[startBlocknr].sqrCenter[moveData.pathType].x;
	int zSquare = blockState[startBlocknr].sqrCenter[moveData.pathType].y;
	if(peDef.IsGoal(xSquare, zSquare))
		return CantGetCloser;

	//Cleaning the system from last search.
	ResetSearch();

	//Marks and store the start-block.
	blockState[startBlocknr].options |= PATHOPT_OPEN;
	blockState[startBlocknr].cost = 0;
	dirtyBlocks.push_back(startBlocknr);

	//Adding the starting block to the open-blocks-queue.
	OpenBlock* ob = openBlockBufferPointer = openBlockBuffer;
	ob->cost = 0;
	ob->currentCost = 0;
	ob->block = startBlock;
	ob->blocknr = startBlocknr;
	openBlocks.push(ob);

	//Mark starting point as best found position.
	goalBlock = startBlock;
	goalHeuristic = peDef.Heuristic(xSquare, zSquare);

	//Gets goal square offset.
	goalSqrOffset = peDef.GoalSquareOffset(BLOCK_SIZE);

	//Performs the search.
	SearchResult result = DoSearch(moveData, peDef);

	//If no improvements are found, then return CantGetCloser instead.
	if(goalBlock.x == startBlock.x && goalBlock.y == startBlock.y)
		return CantGetCloser;
	else
		return result;
}
Exemple #12
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void FolderListCtrl::OnTimer(UINT_PTR timer)
{
	if (timer_ == timer)
		ResetSearch();
}
Exemple #13
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void FolderListCtrl::OnKeyDown(UINT chr, UINT rep_cnt, UINT flags)
{
	switch (chr)
	{
	case VK_RETURN:
		ResetSearch();
		{
			POSITION pos= GetFirstSelectedItemPosition();
			int item= GetNextSelectedItem(pos);
			if (item >= 0)
				OpenItem(item);
		}
		return;

	case VK_BACK:
		ResetSearch();
		GoLevelUp();
		return;

	case VK_PRIOR:
		ResetSearch();
		if (::GetKeyState(VK_CONTROL) < 0)
		{
			GoLevelUp();
			return;
		}
		break;

	case VK_TAB:
		ResetSearch();
		if (CWnd* wnd= GetParent())
		{
			bool previous= ::GetKeyState(VK_SHIFT) < 0;
			wnd->SendMessage(WM_NEXTDLGCTL, previous ? 1 : 0, 0L);
			return;
		}
		break;

	case VK_ESCAPE:		// propagate...
		ResetSearch();
		if (CWnd* wnd= GetParent())
		{
			wnd->SendMessage(WM_COMMAND, IDCANCEL, 0);
			return;
		}
		break;

	case VK_LEFT:
	case VK_RIGHT:
	case VK_UP:
	case VK_DOWN:
	case VK_NEXT:
	case VK_HOME:
	case VK_END:
		ResetSearch();
		break;

	default:
		break;
	}

	Default();
}
Exemple #14
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/**
 * Search with several start positions
 */
IPath::SearchResult CPathFinder::GetPath(
	const MoveData& moveData,
	const std::vector<float3>& startPos,
	const CPathFinderDef& pfDef,
	IPath::Path& path,
	int ownerId,
	bool synced
) {
	// Clear the given path.
	path.path.clear();
	path.squares.clear();
	path.pathCost = PATHCOST_INFINITY;

	// Store som basic data.
	maxSquaresToBeSearched = MAX_SEARCHED_NODES_PF - 8U;
	testMobile = false;
	exactPath = true;
	needPath = true;

	// If exact path is reqired and the goal is blocked, then no search is needed.
	if (exactPath && pfDef.GoalIsBlocked(moveData, (CMoveMath::BLOCK_STRUCTURE | CMoveMath::BLOCK_TERRAIN)))
		return IPath::CantGetCloser;

	// If the starting position is a goal position, then no search need to be performed.
	if (pfDef.IsGoal(startxSqr, startzSqr))
		return IPath::CantGetCloser;

	// Clearing the system from last search.
	ResetSearch();

	openSquareBuffer.SetSize(0);

	for (std::vector<float3>::const_iterator si = startPos.begin(); si != startPos.end(); ++si) {
		start = *si;
		startxSqr = (int(start.x) / SQUARE_SIZE) | 1;
		startzSqr = (int(start.z) / SQUARE_SIZE) | 1;
		startSquare = startxSqr + startzSqr * gs->mapx;
		goalSquare = startSquare;

		squareStates[startSquare].nodeMask = (PATHOPT_START | PATHOPT_OPEN);
		squareStates[startSquare].fCost = 0.0f;
		squareStates[startSquare].gCost = 0.0f;
		dirtySquares.push_back(startSquare);

		if (openSquareBuffer.GetSize() >= MAX_SEARCHED_NODES_PF) {
			continue;
		}

		PathNode* os = openSquareBuffer.GetNode(openSquareBuffer.GetSize());
			os->fCost     = 0.0f;
			os->gCost     = 0.0f;
			os->nodePos.x = startxSqr;
			os->nodePos.y = startzSqr;
			os->nodeNum   = startSquare;
		openSquareBuffer.SetSize(openSquareBuffer.GetSize() + 1);
		openSquares.push(os);
	}

	// note: DoSearch, not InitSearch
	IPath::SearchResult result = DoSearch(moveData, pfDef, ownerId, synced);

	// Respond to the success of the search.
	if (result == IPath::Ok) {
		FinishSearch(moveData, path);
		if (PATHDEBUG) {
			LogObject() << "Path found.\n";
			LogObject() << "Nodes tested: " << testedNodes << "\n";
			LogObject() << "Open squares: " << openSquareBuffer.GetSize() << "\n";
			LogObject() << "Path nodes: " << path.path.size() << "\n";
			LogObject() << "Path cost: " << path.pathCost << "\n";
		}
	} else {
		if (PATHDEBUG) {
			LogObject() << "No path found!\n";
			LogObject() << "Nodes tested: " << testedNodes << "\n";
			LogObject() << "Open squares: " << openSquareBuffer.GetSize() << "\n";
		}
	}
	return result;
}
Exemple #15
0
CPathFinder::~CPathFinder()
{
	ResetSearch();
	squareStates.Clear();
}
Exemple #16
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CPathFinder::~CPathFinder()
{
	ResetSearch();
}
/*
Search with several start positions
*/
IPath::SearchResult CPathFinder::GetPath(const MoveData& moveData, std::vector<float3> startPos, const CPathFinderDef& pfDef, Path& path) {
    //Clear the given path.
    path.path.clear();
    path.pathCost = PATHCOST_INFINITY;

    //Store som basic data.
    maxNodesToBeSearched = MAX_SEARCHED_SQARES;
    testMobile=false;
    exactPath = true;
    needPath=true;

    //If exact path is reqired and the goal is blocked, then no search is needed.
    if(exactPath && pfDef.GoalIsBlocked(moveData, (CMoveMath::BLOCK_STRUCTURE | CMoveMath::BLOCK_TERRAIN)))
        return CantGetCloser;

    //If the starting position is a goal position, then no search need to be performed.
    if(pfDef.IsGoal(startxSqr, startzSqr))
        return CantGetCloser;

    //Clearing the system from last search.
    ResetSearch();

    openSquareBufferPointer = &openSquareBuffer[0];

    for(std::vector<float3>::iterator si=startPos.begin(); si!=startPos.end(); ++si) {
        start = *si;
        startxSqr = (int(start.x) / SQUARE_SIZE)|1;
        startzSqr = (int(start.z) / SQUARE_SIZE)|1;
        startSquare = startxSqr + startzSqr * gs->mapx;

        squareState[startSquare].status = (PATHOPT_START | PATHOPT_OPEN);
        squareState[startSquare].cost = 0;
        dirtySquares.push_back(startSquare);

        goalSquare = startSquare;

        OpenSquare *os = ++openSquareBufferPointer;	//Taking first OpenSquare in buffer.
        os->currentCost = 0;
        os->cost = 0;
        os->square.x = startxSqr;
        os->square.y = startzSqr;
        os->sqr = startSquare;
        openSquares.push(os);
    }

    //Performs the search.
    SearchResult result = DoSearch(moveData, pfDef);

    //Respond to the success of the search.
    if(result == Ok) {
        FinishSearch(moveData, path);
        if(PATHDEBUG) {
            *info << "Path found.\n";
            *info << "Nodes tested: " << (int)testedNodes << "\n";
            *info << "Open squares: " << (openSquareBufferPointer - openSquareBuffer) << "\n";
            *info << "Path steps: " << (int)(path.path.size()) << "\n";
            *info << "Path cost: " << path.pathCost << "\n";
        }
    } else {
        if(PATHDEBUG) {
            *info << "Path not found!\n";
            *info << "Nodes tested: " << (int)testedNodes << "\n";
            *info << "Open squares: " << (openSquareBufferPointer - openSquareBuffer) << "\n";
        }
    }
    return result;
}
/*
Destructor.
Free used memory.
*/
CPathFinder::~CPathFinder()
{
    ResetSearch();
    delete[] squareState;
}
Exemple #19
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// set up the starting point of the search
IPath::SearchResult IPathFinder::InitSearch(const MoveDef& moveDef, const CPathFinderDef& pfDef, const CSolidObject* owner)
{
	int2 square = mStartBlock;

	if (BLOCK_SIZE != 1)
		square = blockStates.peNodeOffsets[moveDef.pathType][mStartBlockIdx];

	const bool isStartGoal = pfDef.IsGoal(square.x, square.y);
	const bool startInGoal = pfDef.startInGoalRadius;

	const bool allowRawPath = pfDef.allowRawPath;
	const bool allowDefPath = pfDef.allowDefPath;

	assert(allowRawPath || allowDefPath);

	// cleanup after the last search
	ResetSearch();

	IPath::SearchResult results[] = {IPath::CantGetCloser, IPath::Ok, IPath::CantGetCloser};

	// although our starting square may be inside the goal radius, the starting coordinate may be outside.
	// in this case we do not want to return CantGetCloser, but instead a path to our starting square.
	if (isStartGoal && startInGoal)
		return results[allowRawPath];

	// mark and store the start-block; clear all bits except PATHOPT_OBSOLETE
	blockStates.nodeMask[mStartBlockIdx] &= PATHOPT_OBSOLETE;
	blockStates.nodeMask[mStartBlockIdx] |= PATHOPT_OPEN;
	blockStates.fCost[mStartBlockIdx] = 0.0f;
	blockStates.gCost[mStartBlockIdx] = 0.0f;
	blockStates.SetMaxCost(NODE_COST_F, 0.0f);
	blockStates.SetMaxCost(NODE_COST_G, 0.0f);

	dirtyBlocks.push_back(mStartBlockIdx);

	// start a new search and add the starting block to the open-blocks-queue
	openBlockBuffer.SetSize(0);
	PathNode* ob = openBlockBuffer.GetNode(openBlockBuffer.GetSize());
		ob->fCost   = 0.0f;
		ob->gCost   = 0.0f;
		ob->nodePos = mStartBlock;
		ob->nodeNum = mStartBlockIdx;
	openBlocks.push(ob);

	// mark starting point as best found position
	mGoalHeuristic = pfDef.Heuristic(square.x, square.y, BLOCK_SIZE);

	enum {
		RAW = 0,
		IPF = 1,
	};

	// perform the search
	results[RAW] = (allowRawPath                                )? DoRawSearch(moveDef, pfDef, owner): IPath::Error;
	results[IPF] = (allowDefPath && results[RAW] == IPath::Error)? DoSearch(moveDef, pfDef, owner): results[RAW];

	if (results[IPF] == IPath::Ok)
		return IPath::Ok;
	if (mGoalBlockIdx != mStartBlockIdx)
		return results[IPF];

	// if start and goal are within the same block but distinct squares (or
	// considered a single point for search purposes), then we probably can
	// not get closer and should return CGC *unless* the caller requested a
	// raw search only
	return results[IPF + ((!allowRawPath || allowDefPath) && (!isStartGoal || startInGoal))];
}