mirror of
https://github.com/alliedmodders/amxmodx.git
synced 2024-10-17 15:56:52 +03:00
461 lines
15 KiB
C++
Executable File
461 lines
15 KiB
C++
Executable File
#include "metamap.h"
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bool& VisitedAccess(unsigned int col, unsigned int lin, bool* visited)
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{
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return visited[lin * COLUMNS + col];
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}
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cell* MatrixWrite(UINT col, UINT lin, cell* theMatrix)
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{
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return &(theMatrix[lin * COLUMNS + col]);
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//return &(crossword.at());
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}
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const cell* MatrixRead(UINT col, UINT lin, cell* theMatrix)
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{
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return &(theMatrix[lin * COLUMNS + col]);
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//return &(crossword.at());
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}
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void AddSpace(int column, int line, vector<CSpace>& spaces)
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{
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spaces.push_back(CSpace(column, line));
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}
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void EmptyMatrix(cell* theMatrix) {
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for (UINT i = 0; i < COLUMNS; i++) {
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for (UINT j = 0; j < LINES; j++) {
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*(MatrixWrite(i, j, theMatrix)) = SPACE_EMPTY;
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}
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}
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}
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bool BoundaryAndWallCheck(const UINT column, const UINT line, bool* CRvisited, cell* theMatrix)
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{
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if (column >= 0 && column < COLUMNS && line >= 0 && line < LINES) {
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// That's boundaries, now walls, and visited!
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if (*MatrixRead(column, line, theMatrix) == SPACE_EMPTY) //if (theMatrix[column][line] == SPACE_EMPTY) {
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if (!(VisitedAccess(column, line, CRvisited)))//if (!CRvisited[column][line])
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return true;
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/*else {
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cout << "Visited" << column << ',' << line << '!';
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}*/
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}
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return false;
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}
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int Difference(int i, int j) {
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if (i > j)
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return i - j;
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else
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return j - i;
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}
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bool CheckReach(const UINT currentColumn, const UINT currentLine, const UINT targetColumn, const UINT targetLine, bool* CRvisited, cell* theMatrix)
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{
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//cout << '>' << currentColumn << ',' << currentLine;
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if (currentColumn < 0 || currentColumn >= COLUMNS || currentLine < 0 || currentLine >= LINES
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|| targetColumn < 0 || targetColumn >= COLUMNS || targetLine < 0 || targetLine >= LINES) {
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MF_Log("Metamap: Out of range in CheckReach! currentColumn %d currentLine %d targetColumn %d targetLine %d");
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throw;
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}
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// This should happen when the spaces are directly next to each other.
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if (currentColumn == targetColumn && Difference(currentLine, targetLine) == 1
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|| currentLine == targetLine && Difference(currentColumn, targetColumn) == 1) {
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//cout << "Returns yes here because " << currentColumn << "," << currentLine << " and " << targetColumn << "," << targetLine << " are next to each other.";
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//cout << "=nextTo";
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return true;
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}
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else if (*MatrixRead(currentColumn, currentLine, theMatrix) == SPACE_WALL) //else if (theMatrix[currentColumn][currentLine] == SPACE_WALL)
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return false;
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(VisitedAccess(currentColumn, currentLine, CRvisited)) = true; //CRvisited[currentColumn][currentLine] = true;
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// Spaces are now at least two manhattan units from each other.
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// Try to go in the general direction of target (should be one or two possibilites here, depending on if we are on the same line/column or not)
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bool goLeft = false, goUp = false, goRight = false, goDown = false;
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if (targetColumn < currentColumn)
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goLeft = true;
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else if (targetColumn > currentColumn)
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goRight = true;
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if (targetLine < currentLine)
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goUp = true;
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else if (targetLine > currentLine)
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goDown = true;
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// Left
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int leftColumn = currentColumn - 1;
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int leftLine = currentLine;
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// Up
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int upColumn = currentColumn;
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int upLine = currentLine - 1;
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// Right
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int rightColumn = currentColumn + 1;
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int rightLine = currentLine;
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// Down
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int downColumn = currentColumn;
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int downLine = currentLine + 1;
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int nextColumn[4], nextLine[4];
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bool nextCheck[4];
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if (goLeft) {
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nextColumn[0] = leftColumn;
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nextLine[0] = leftLine;
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nextCheck[0] = BoundaryAndWallCheck(nextColumn[0], nextLine[0], CRvisited, theMatrix);
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if (goUp) {
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nextColumn[1] = upColumn;
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nextLine[1] = upLine;
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nextCheck[1] = BoundaryAndWallCheck(nextColumn[1], nextLine[1], CRvisited, theMatrix);
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nextColumn[2] = downColumn;
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nextLine[2] = downLine;
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nextCheck[2] = BoundaryAndWallCheck(nextColumn[2], nextLine[2], CRvisited, theMatrix);
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nextColumn[3] = rightColumn;
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nextLine[3] = rightLine;
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nextCheck[3] = BoundaryAndWallCheck(nextColumn[3], nextLine[3], CRvisited, theMatrix);
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}
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else {
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nextColumn[1] = downColumn;
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nextLine[1] = downLine;
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nextCheck[1] = BoundaryAndWallCheck(nextColumn[1], nextLine[1], CRvisited, theMatrix);
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nextColumn[2] = upColumn;
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nextLine[2] = upLine;
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nextCheck[2] = BoundaryAndWallCheck(nextColumn[2], nextLine[2], CRvisited, theMatrix);
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nextColumn[3] = rightColumn;
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nextLine[3] = rightLine;
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nextCheck[3] = BoundaryAndWallCheck(nextColumn[3], nextLine[3], CRvisited, theMatrix);
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}
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}
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else if (goRight) {
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nextColumn[0] = rightColumn;
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nextLine[0] = rightLine;
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nextCheck[0] = BoundaryAndWallCheck(nextColumn[0], nextLine[0], CRvisited, theMatrix);
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if (goUp) {
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nextColumn[1] = upColumn;
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nextLine[1] = upLine;
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nextCheck[1] = BoundaryAndWallCheck(nextColumn[1], nextLine[1], CRvisited, theMatrix);
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nextColumn[2] = downColumn;
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nextLine[2] = downLine;
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nextCheck[2] = BoundaryAndWallCheck(nextColumn[2], nextLine[2], CRvisited, theMatrix);
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nextColumn[3] = leftColumn;
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nextLine[3] = leftLine;
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nextCheck[3] = BoundaryAndWallCheck(nextColumn[3], nextLine[3], CRvisited, theMatrix);
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}
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else {
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nextColumn[1] = downColumn;
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nextLine[1] = downLine;
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nextCheck[1] = BoundaryAndWallCheck(nextColumn[1], nextLine[1], CRvisited, theMatrix);
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nextColumn[2] = upColumn;
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nextLine[2] = upLine;
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nextCheck[2] = BoundaryAndWallCheck(nextColumn[2], nextLine[2], CRvisited, theMatrix);
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nextColumn[3] = leftColumn;
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nextLine[3] = leftLine;
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nextCheck[3] = BoundaryAndWallCheck(nextColumn[3], nextLine[3], CRvisited, theMatrix);
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}
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}
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else {
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if (goUp) {
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nextColumn[0] = upColumn;
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nextLine[0] = upLine;
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nextCheck[0] = BoundaryAndWallCheck(nextColumn[0], nextLine[0], CRvisited, theMatrix);
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nextColumn[1] = leftColumn;
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nextLine[1] = leftLine;
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nextCheck[1] = BoundaryAndWallCheck(nextColumn[1], nextLine[1], CRvisited, theMatrix);
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nextColumn[2] = rightColumn;
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nextLine[2] = rightLine;
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nextCheck[2] = BoundaryAndWallCheck(nextColumn[2], nextLine[2], CRvisited, theMatrix);
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nextColumn[3] = downColumn;
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nextLine[3] = downLine;
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nextCheck[3] = BoundaryAndWallCheck(nextColumn[3], nextLine[3], CRvisited, theMatrix);
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}
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else {
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nextColumn[0] = downColumn;
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nextLine[0] = downLine;
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nextCheck[0] = BoundaryAndWallCheck(nextColumn[0], nextLine[0], CRvisited, theMatrix);
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nextColumn[1] = leftColumn;
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nextLine[1] = leftLine;
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nextCheck[1] = BoundaryAndWallCheck(nextColumn[1], nextLine[1], CRvisited, theMatrix);
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nextColumn[2] = rightColumn;
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nextLine[2] = rightLine;
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nextCheck[2] = BoundaryAndWallCheck(nextColumn[2], nextLine[2], CRvisited, theMatrix);
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nextColumn[3] = upColumn;
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nextLine[3] = upLine;
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nextCheck[3] = BoundaryAndWallCheck(nextColumn[3], nextLine[3], CRvisited, theMatrix);
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}
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}
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for (int i = 0; i < 4; i++) {
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if (nextCheck[i] && CheckReach(nextColumn[i], nextLine[i], targetColumn, targetLine, CRvisited, theMatrix)) {
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return true;
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}
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}
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return false;
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}
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bool CheckReaches(const UINT column, const UINT line, cell* theMatrix) {
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// can left, up, right and down still reach each other? if so, this move can be done.
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// Can left reach up, can up reach right, and can right reach down = good move.
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bool checkSpaces[4];
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int columns[4]; // These CANNOT be UINT! Evaluted >0 with expected possibility of going below 0!
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int lines[4]; // These CANNOT be UINT! Evaluted >0 with expected possibility of going below 0!
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// Left
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columns[0] = column - 1;
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lines[0] = line;
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// Boundary + wall check //checkSpaces[0] = columns[0] >= 0 ? (theMatrix[columns[0]][lines[0]] == SPACE_EMPTY ? true : false) : false; // Boundary + wall check
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checkSpaces[0] = columns[0] >= 0 ? (*MatrixRead(columns[0], lines[0], theMatrix) == SPACE_EMPTY ? true : false) : false;
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// Up
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columns[1] = column;
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lines[1] = line - 1;
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//checkSpaces[1] = lines[1] >= 0 ? (theMatrix[columns[1]][lines[1]] == SPACE_EMPTY ? true : false) : false; // Boundary + wall check
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checkSpaces[1] = lines[1] >= 0 ? (*MatrixRead(columns[1], lines[1], theMatrix) == SPACE_EMPTY ? true : false) : false;
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// Right
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columns[2] = column + 1;
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lines[2] = line;
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//checkSpaces[2] = columns[2] < COLUMNS ? (theMatrix[columns[2]][lines[2]] == SPACE_EMPTY ? true : false) : false; // Boundary + wall check
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checkSpaces[2] = columns[2] < (int)COLUMNS ? (*MatrixRead(columns[2], lines[2], theMatrix) == SPACE_EMPTY ? true : false) : false;
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// Down
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columns[3] = column;
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lines[3] = line + 1;
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//checkSpaces[3] = lines[3] < LINES ? (theMatrix[columns[3]][lines[3]] == SPACE_EMPTY ? true : false) : false; // Boundary + wall check
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checkSpaces[3] = lines[3] < (int)LINES ? (*MatrixRead(columns[3], lines[3], theMatrix) == SPACE_EMPTY ? true : false) : false;
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for (int j = 0, spacesToCheck = 0; j < 4; j++) {
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if (checkSpaces[j])
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spacesToCheck++;
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}
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if (spacesToCheck == 1) {
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// If only one space to check, the other are already used by walls or out of bounds, so don't bother checking anything more, just return true!
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return true;
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}
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else if (spacesToCheck == 0) {
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// If this is ever 0, we probably made an error earlier?
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//PrintMatrix(column, line);
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//cout << "Should check around: " << column << ',' << line << " is " << ((theMatrix[column][line] == SPACE_EMPTY) ? "empty" : "a wall") << endl;
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MF_Log("Metamap: Error - unreachable area may have been created earlier, quitting...");
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throw;
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}
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//cout << "Should find " << spacesToCheck << " connections." << endl;
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//int connectionsToFind
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bool reaches;
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int tested = 0;
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int connections = 0;
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//vector<bool> CRvisited; <-- burn in hell, STL! :-D
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//CRvisited.resize(COLUMNS * LINES);
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bool* visited = new bool[COLUMNS * LINES];
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//EmptyMatrix(theMatrix, visited);
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//bool CRvisited[COLUMNS][LINES];
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for (UINT i = 0; i < 4; i++) {
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if (!checkSpaces[i])
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continue;
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// We should be able to return true here, because if A can reach B, B can also reach A. :-)
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//if (connections == 1 && spacesToCheck == 2)
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//return true;
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reaches = false;
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tested = 0;
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for (UINT j = i + 1; tested < 4; j++) {
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if (j == 4)
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j = 0;
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tested++; // we have tested this direction
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if (i == j || !checkSpaces[j])
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continue;
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//cout << "Can " << columns[i] << ',' << lines[i] << " reach " << columns[j] << ',' << lines[j] << '?';
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for (UINT l = 0; l < LINES; l++) {
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for (UINT k = 0; k < COLUMNS; k++) {
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(VisitedAccess(k, l, visited)) = false;//CRvisited[l][k] = false;
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}
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}
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//MF_Log("i: %d, calls CheckReach(%d, %d, %d, %d, CRvisited, theMatrix)", i, columns[i], lines[i], columns[j], lines[j]);
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if (CheckReach(columns[i], lines[i], columns[j], lines[j], visited, theMatrix)) {
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//cout << " Yes, " << columns[i] << ',' << lines[i] << " reaches " << columns[j] << ',' << lines[j] << ", indexes " << i << " and " << j << '.' << endl;
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reaches = true;
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connections++;
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break; // break, don't check this space anymore, go on check with the rest.
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}
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else {
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// Really, if A cannot ever reach B, it does not matter if A can reach C! :-)
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delete [] visited;
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return false;
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}
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//cout << " No!" << endl;
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}
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// If we can't reach any of the other spaces, return false here.
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if (!reaches) {
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//cout << columns[i] << ',' << lines[i] << " can't reach any other space! Returning false here..." << endl;
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delete [] visited;
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return false;
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}
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}
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delete [] visited;
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return true;
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}
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bool PlaceWalls2(const UINT WALLSTOPLACE, cell* theMatrix)
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{
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if (WALLSTOPLACE > COLUMNS * LINES) {
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MF_Log("Metamap: Too many walls!");
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return false;
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}
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UINT wallsPlaced = 0;
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// Find all empty spaces, add them to vector.
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vector<CSpace> emptySpaces;
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//int round = 0;
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while (wallsPlaced < WALLSTOPLACE) {
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//round++;
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//cout << "Starting new round, we should place " << wallsToPlace << " but have so far only placed " << wallsPlaced << " walls." << endl;
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//system("PAUSE");
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for (UINT i = 0, empties = 0; i < COLUMNS; i++) {
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for (UINT j = 0; j < LINES; j++) {
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if (*(MatrixRead(i, j, theMatrix)) == SPACE_EMPTY) { // if (theMatrix[i][j] == SPACE_EMPTY) {
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AddSpace(i, j, emptySpaces);
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empties++;
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}
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}
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}
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#if defined _debug
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MF_Log("Added %d empty spaces... %d elements in emptySpaces", empties, emptySpaces.size());
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#endif
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for (UINT column, line, element; wallsPlaced < WALLSTOPLACE && !emptySpaces.empty(); wallsPlaced++) {
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element = JBRandom::JBRandomize(0, emptySpaces.size() - 1);
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column = emptySpaces[element].column;
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line = emptySpaces[element].line;
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//MF_Log("element %d in column %d, line %d", element, column, line);
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*(MatrixWrite(column, line, theMatrix)) = SPACE_WALL;// theMatrix[column][line] = SPACE_WALL;
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//PrintMatrix(column, line);
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// Is it possible to place a wall here without blocking anything?
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if (!CheckReaches(column, line, theMatrix)) {
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//cout << "No!" << endl;
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*(MatrixWrite(column, line, theMatrix)) = SPACE_EMPTY; //theMatrix[column][line] = SPACE_EMPTY;
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wallsPlaced--;
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//system("PAUSE");
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}
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emptySpaces.erase(&emptySpaces[element]);
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//cout << emptySpaces.size() << endl;
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//system("PAUSE");
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}
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//cout << "One round ready..." << endl;
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//PrintMatrix();
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//system("PAUSE");
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}
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return true;
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}
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void CountWalls(cell* theMatrix) {
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int walls = 0, empties = 0, others = 0;
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for (UINT i = 0; i < LINES * COLUMNS; i++) {
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if (theMatrix[i] == SPACE_EMPTY)
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empties++;
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else if (theMatrix[i] == SPACE_WALL)
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walls++;
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else
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others++;
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}
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MF_Log("Walls: %d empties: %d others: %d", walls, empties, others);
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}
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static cell AMX_NATIVE_CALL metamap_getmap(AMX *amx, cell *params) // native metamap_getmap(matrix[], columns, lines, walls); = 4 params
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{
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#if defined _DEBUG
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MF_Log("metamap_getmap start");
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#endif
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g_amx = amx;
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// Get matrix
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cell* theMatrix = MF_GetAmxAddr(amx, params[1]);
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// Get rest of the parameters
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COLUMNS = params[2];
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LINES = params[3];
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const int WALLS = params[4];
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if (COLUMNS <= 0) {
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MF_Log("Too few columns! (%d)", COLUMNS);
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MF_RaiseAmxError(g_amx, AMX_ERR_NATIVE);
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return 0;
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}
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else if (LINES <= 0) {
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MF_Log("Too few lines! (%d)", LINES);
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MF_RaiseAmxError(g_amx, AMX_ERR_NATIVE);
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return 0;
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}
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else if (WALLS <= 0) {
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MF_Log("Too few walls! (%d)", WALLS);
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MF_RaiseAmxError(g_amx, AMX_ERR_NATIVE);
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return 0;
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}
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try {
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EmptyMatrix(theMatrix);
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#if defined _DEBUG
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CountWalls(theMatrix);
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#endif
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if (!PlaceWalls2(WALLS, theMatrix)) {
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MF_RaiseAmxError(g_amx, AMX_ERR_NATIVE);
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return 0;
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}
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#if defined _DEBUG
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MF_Log("After placing walls:");
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CountWalls(theMatrix);
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#endif
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}
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catch (...) {
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MF_Log("Metamap, main: Unhandled exception.");
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MF_RaiseAmxError(g_amx, AMX_ERR_NATIVE);
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return 0;
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}
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#if defined _DEBUG
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MF_Log("metamap_getmap end");
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#endif
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return 1;
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}
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/******************************************************************************************/
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AMX_NATIVE_INFO metamap_Exports[] = {
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{"metamap_getmap", metamap_getmap},
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/////////////////// <--- 19 chars max
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{NULL, NULL}
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};
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void OnAmxxAttach()
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{
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MF_AddNatives(metamap_Exports);
|
|
}
|