made SuperSnakeBot.java to SnakeBot.java
This commit is contained in:
Illia Soloviov
parent
bfc344c9aa
commit
04c1696da7
@ -10,163 +10,103 @@
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* Für diese Funktion wird am 7.2.24 in einer gemeinsamen Arena mit allen Teams des Jahrgangs ein Wettbewerb durchgeführt.
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* Die besten acht Teams qualifizieren sich für die Königsdisziplin „Rumble“.
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*/
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import java.util.Random;
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public class SnakeBot extends Bot{
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private String moves = "";
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private int spiralNumber = 0;
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boolean frontIsBlocked, backIsBlocked, leftIsBlocked, rightIsBlocked, trapped;
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private char previousTurn = '<';
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private int spiralFactor = 1;
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private char spiralDirection = '>';
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private boolean goesForward = true;
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private boolean ignoreStones = false;
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public static void main(String[] args) {
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Bot snakeBot = new SnakeBot(args);
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snakeBot.run();
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Bot SnakeBot = new SnakeBot(args);
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SnakeBot.run();
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}
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protected SnakeBot(String[] args) {
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super(args);
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}
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//@TODO: find a better way to avoid collected stones
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//@TODO: find a better way to collect stones
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protected char nextMove(View view) {
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protected char nextMove(View view) throws Exception {
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boolean stoneDetected = view.data.contains("@");
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char nextMove;
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nextMove = (stoneDetected && !ignoreStones) ? goToStone(view) : walkBySpiral(view);
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int centerCoordinateOfView = view.width / 2;
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int frontCellIndex = calculateCharIndexFromCoordinates(view.width, centerCoordinateOfView, centerCoordinateOfView - 1);
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checkBarriers(view);
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if(nextMove == '^' && view.data.charAt(frontCellIndex) == '*'){
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nextMove = (countCollectedStonesLeft(view) <= countCollectedStonesRight(view)) ? '<' : '>';
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ignoreStones = true;
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}
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nextMove = stoneDetected ? goToStone(view) : walkBySpiral(view);
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if(countUncollectedStones(view) > 1) ignoreStones = true;
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if(countCollectedStones(view) <= 2 && countUncollectedStones(view) <= 1) ignoreStones = false;
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if(isStoneNearby(view)){
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nextMove = goToNearbyStone(view);
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}
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nextMove = checkMove(nextMove);
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saveMove(nextMove);
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return nextMove;
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}
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private boolean isStoneNearby(View view){
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int centerCoordinateOfView = view.width / 2;
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int frontCellIndex = calculateCharIndexFromCoordinates(view.width, centerCoordinateOfView, centerCoordinateOfView - 1);
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int leftCellIndex = calculateCharIndexFromCoordinates(view.width, centerCoordinateOfView - 1, centerCoordinateOfView);
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int rightCellIndex = calculateCharIndexFromCoordinates(view.width, centerCoordinateOfView + 1, centerCoordinateOfView);
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private void checkBarriers(View view) throws Exception {
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int centerCoordinates = view.width / 2;
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int centerIndex = getCharIndexFromCoordinates(view.width, centerCoordinates, centerCoordinates);
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boolean stoneIsInFront = view.data.charAt(frontCellIndex) == '@';
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boolean stoneIsOnTheLeft = view.data.charAt(leftCellIndex) == '@';
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boolean stoneIsOneTheRight = view.data.charAt(rightCellIndex) == '@';
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int frontIndex = getCharIndexFromCoordinates(view.width, centerCoordinates, centerCoordinates - 1);
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int backIndex = getCharIndexFromCoordinates(view.width, centerCoordinates, centerCoordinates + 1);
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int leftIndex = centerIndex - 1;
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int rightIndex = centerIndex + 1;
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return stoneIsInFront || stoneIsOnTheLeft || stoneIsOneTheRight;
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}
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frontIsBlocked = view.data.charAt(frontIndex) == '*';
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backIsBlocked = view.data.charAt(backIndex) == '*';
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leftIsBlocked = view.data.charAt(leftIndex) == '*';
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rightIsBlocked = view.data.charAt(rightIndex) == '*';
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trapped = frontIsBlocked && backIsBlocked && leftIsBlocked && rightIsBlocked;
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private char goToNearbyStone(View view){
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int centerCoordinateOfView = view.width / 2;
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int frontCellIndex = calculateCharIndexFromCoordinates(view.width, centerCoordinateOfView, centerCoordinateOfView - 1);
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int leftCellIndex = calculateCharIndexFromCoordinates(view.width, centerCoordinateOfView - 1, centerCoordinateOfView);
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int rightCellIndex = calculateCharIndexFromCoordinates(view.width, centerCoordinateOfView + 1, centerCoordinateOfView);
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if(view.data.charAt(frontCellIndex) == '@') return '^';
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if(view.data.charAt(leftCellIndex) == '@') return '<';
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if(view.data.charAt(rightCellIndex) == '@') return '>';
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return 0;
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}
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private void resetMoves() {
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moves = "";
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spiralNumber = 0;
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}
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private int countUncollectedStones(View view) {
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int count = 0;
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for (char c : view.data.toCharArray()) {
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if (c == '@') count++;
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if (trapped) {
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Exception trappedException = new Exception("Snake is trapped");
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System.err.println(trappedException.getMessage());
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throw trappedException;
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}
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return count;
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}
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private int countCollectedStonesLeft(View view) {
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int[] leftSide = generateLeftSideArray(view.width);
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int stones = 0;
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for (int cellIndex : leftSide) {
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if(view.data.charAt(cellIndex) == '*') stones++;
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private char checkMove(char move) throws Exception {
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if (frontIsBlocked) {
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resetMovesSequence();
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if (leftIsBlocked) move = '>';
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else if (rightIsBlocked) move = '<';
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else if (previousTurn == '<') move = '>';
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else if (previousTurn == '>') move = '<';
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else {
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Exception invalidTurnException = new Exception("The previous turn was neither '<' nor '>'.");
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System.err.println(invalidTurnException.getMessage());
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throw invalidTurnException;
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}
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}
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return stones;
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return move;
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}
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private int countCollectedStonesRight(View view) {
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int[] rightSide = generateRightSideArray(view.width);
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int stones = 0;
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for (int cellIndex : rightSide) {
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if(view.data.charAt(cellIndex) == '*') stones++;
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private void saveMove(char move) {
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if (move == '<' || move == '>') {
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previousTurn = move;
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}
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return stones;
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}
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private int countCollectedStones(View view) {
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int count = 0;
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for (char c : view.data.toCharArray()) {
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if (c == '*') count++;
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}
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return count;
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}
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private char goToStone(View view) {
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int rowDifference = findStoneRow(view) - (view.width / 2);
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return rowDifference < 0 ? '^' : '<';
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}
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private int findStoneRow(View view) {
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return view.data.indexOf('@') / view.width;
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}
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private char walkBySpiral(View view) {
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if (moves.isEmpty()) {
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spiralNumber++;
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moves += "^".repeat(view.width * spiralNumber) + ">" + "^".repeat(view.width * spiralNumber) + ">";
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spiralFactor++;
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moves += "^".repeat(view.width * spiralFactor) + spiralDirection + "^".repeat(view.width * spiralFactor) + spiralDirection;
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}
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char nextMove = moves.charAt(0);
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moves = moves.substring(1);
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return nextMove;
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}
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private int calculateCharIndexFromCoordinates(int width, int x, int y){
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return width * y + x;
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}
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private int[] generateLeftSideArray(int sideLength) {
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int[] leftStones = new int[sideLength / 2 * sideLength];
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int index = 0;
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for (int row = 0; row < sideLength; row++) {
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for (int col = 0; col < sideLength / 2; col++) {
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leftStones[index++] = row * sideLength + col;
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}
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}
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return leftStones;
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}
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private int[] generateRightSideArray(int sideLength) {
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int[] rightStones = new int[sideLength / 2 * sideLength];
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int index = 0;
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for (int row = 0; row < sideLength; row++) {
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for (int col = (sideLength / 2) + 1; col < sideLength; col++) {
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rightStones[index++] = row * sideLength + col;
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}
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}
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return rightStones;
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}
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private char walkByColumns(View view) {
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if(moves.isEmpty()){
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moves = "^".repeat(28);
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int min = 10;
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int max = 100;
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Random random = new Random();
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int steps = random.nextInt((max - min) + 1) + min;
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//int steps = 32 - view.width;
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moves = "^".repeat(steps);
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moves += (goesForward ? ">" + "^".repeat(view.width) + ">" : "<" + "^".repeat(view.width) + "<");
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goesForward = !goesForward;
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}
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@ -175,4 +115,73 @@ public class SnakeBot extends Bot{
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return nextMove;
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}
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private char goToStone(View view) {
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resetMovesSequence();
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int[] frontIndexes = getFrontIndexes(view);
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int[] leftIndexes = getLeftIndexes(view);
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int[] rightIndexes = getRightIndexes(view);
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for (int index : frontIndexes) {
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if (view.data.charAt(index) == '@' && view.data.charAt(index + view.width) != '*' && !frontIsBlocked) return '^';
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}
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for (int index : leftIndexes) {
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if (view.data.charAt(index) == '@' && view.data.charAt(index + 1) != '*' && !leftIsBlocked) return '<';
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}
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for (int index : rightIndexes) {
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if (view.data.charAt(index) == '@' && view.data.charAt(index - 1) != '*' && !rightIsBlocked) return '>';
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}
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return '^';
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}
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private int[] getLeftIndexes(View view) {
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int center = view.width / 2;
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int[] leftIndexes = new int[center];
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int index = 0;
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for (int col = 0; col < center; col++) {
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leftIndexes[index++] = getCharIndexFromCoordinates(view.width, col, center);
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}
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return leftIndexes;
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}
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private int[] getRightIndexes(View view) {
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int center = view.width / 2;
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int[] rightIndexes = new int[center];
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int index = 0;
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for (int col = center + 1; col < view.width; col++) {
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rightIndexes[index++] = getCharIndexFromCoordinates(view.width, col, center);
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}
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return rightIndexes;
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}
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private int[] getFrontIndexes(View view) {
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int center = view.width / 2;
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int[] frontIndexes = new int[center];
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int index = 0;
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for (int row = 0; row < center; row++) {
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frontIndexes[index++] = getCharIndexFromCoordinates(view.width, center, row);
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}
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return frontIndexes;
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}
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private int getCharIndexFromCoordinates(int width, int x, int y) {
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return width * y + x;
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}
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private void resetMovesSequence() {
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moves = "";
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System.out.println("Previous spiralNumber: " + spiralFactor + ". Resetting.");
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spiralFactor = 1;
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spiralDirection = (spiralDirection == '>') ? '<' : '>';
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goesForward = true;
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}
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}
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@ -1,174 +0,0 @@
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import java.util.Random;
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public class SuperSnakeBot extends Bot{
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private String moves = "";
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private char previousTurn = '<';
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boolean frontIsBlocked, backIsBlocked, leftIsBlocked, rightIsBlocked, trapped;
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private int spiralFactor = 1;
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private char spiralDirection = '>';
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private boolean goesForward = true;
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public static void main(String[] args) {
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Bot superSnakeBot = new SuperSnakeBot(args);
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superSnakeBot.run();
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}
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protected SuperSnakeBot(String[] args) {
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super(args);
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}
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protected char nextMove(View view) throws Exception {
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boolean stoneDetected = view.data.contains("@");
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char nextMove;
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checkBarriers(view);
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nextMove = stoneDetected ? goToStone(view) : walkBySpiral(view);
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nextMove = checkMove(nextMove);
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saveMove(nextMove);
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return nextMove;
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}
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private void checkBarriers(View view) throws Exception {
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int centerCoordinates = view.width / 2;
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int centerIndex = getCharIndexFromCoordinates(view.width, centerCoordinates, centerCoordinates);
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int frontIndex = getCharIndexFromCoordinates(view.width, centerCoordinates, centerCoordinates - 1);
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int backIndex = getCharIndexFromCoordinates(view.width, centerCoordinates, centerCoordinates + 1);
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int leftIndex = centerIndex - 1;
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int rightIndex = centerIndex + 1;
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frontIsBlocked = view.data.charAt(frontIndex) == '*';
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backIsBlocked = view.data.charAt(backIndex) == '*';
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leftIsBlocked = view.data.charAt(leftIndex) == '*';
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rightIsBlocked = view.data.charAt(rightIndex) == '*';
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trapped = frontIsBlocked && backIsBlocked && leftIsBlocked && rightIsBlocked;
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if (trapped) {
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Exception trappedException = new Exception("Snake is trapped");
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System.err.println(trappedException.getMessage());
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throw trappedException;
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}
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}
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private char checkMove(char move) throws Exception {
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if (frontIsBlocked) {
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resetMovesSequence();
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if (leftIsBlocked) move = '>';
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else if (rightIsBlocked) move = '<';
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else if (previousTurn == '<') move = '>';
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else if (previousTurn == '>') move = '<';
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else {
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Exception invalidTurnException = new Exception("The previous turn was neither '<' nor '>'.");
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System.err.println(invalidTurnException.getMessage());
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throw invalidTurnException;
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}
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}
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return move;
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}
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private void saveMove(char move) {
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if(move == '<' || move == '>'){
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previousTurn = move;
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}
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}
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private char walkBySpiral(View view) {
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if (moves.isEmpty()) {
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spiralFactor++;
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moves += "^".repeat(view.width * spiralFactor) + spiralDirection + "^".repeat(view.width * spiralFactor) + spiralDirection;
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}
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char nextMove = moves.charAt(0);
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moves = moves.substring(1);
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return nextMove;
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}
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private char walkByColumns(View view) {
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if(moves.isEmpty()){
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int min = 10;
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int max = 100;
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Random random = new Random();
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int steps = random.nextInt((max - min) + 1) + min;
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//int steps = 32 - view.width;
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moves = "^".repeat(steps);
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moves += (goesForward ? ">" + "^".repeat(view.width) + ">" : "<" + "^".repeat(view.width) + "<");
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goesForward = !goesForward;
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}
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char nextMove = moves.charAt(0);
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moves = moves.substring(1);
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return nextMove;
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}
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private char goToStone(View view) {
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resetMovesSequence();
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int[] frontIndexes = getFrontIndexes(view);
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int[] leftIndexes = getLeftIndexes(view);
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int[] rightIndexes = getRightIndexes(view);
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for (int index : frontIndexes) {
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if (view.data.charAt(index) == '@' && view.data.charAt(index + view.width) != '*' && !frontIsBlocked) return '^';
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}
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for (int index : leftIndexes) {
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if (view.data.charAt(index) == '@' && view.data.charAt(index + 1) != '*' && !leftIsBlocked) return '<';
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}
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for (int index : rightIndexes) {
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if (view.data.charAt(index) == '@' && view.data.charAt(index - 1) != '*' && !rightIsBlocked) return '>';
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}
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return '^';
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}
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private int[] getLeftIndexes(View view) {
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int center = view.width / 2;
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int[] leftIndexes = new int[center];
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int index = 0;
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for (int col = 0; col < center; col++) {
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leftIndexes[index++] = getCharIndexFromCoordinates(view.width, col, center);
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}
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return leftIndexes;
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}
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private int[] getRightIndexes(View view) {
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int center = view.width / 2;
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int[] rightIndexes = new int[center];
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int index = 0;
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for (int col = center + 1; col < view.width; col++) {
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rightIndexes[index++] = getCharIndexFromCoordinates(view.width, col, center);
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}
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return rightIndexes;
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}
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private int[] getFrontIndexes(View view) {
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int center = view.width / 2;
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int[] frontIndexes = new int[center];
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int index = 0;
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for (int row = 0; row < center; row++) {
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frontIndexes[index++] = getCharIndexFromCoordinates(view.width, center, row);
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}
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return frontIndexes;
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}
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private int getCharIndexFromCoordinates(int width, int x, int y) {
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return width * y + x;
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}
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private void resetMovesSequence() {
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moves = "";
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System.out.println("Previous spiralNumber: " + spiralFactor + ". Resetting.");
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spiralFactor = 1;
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spiralDirection = (spiralDirection == '>') ? '<' : '>';
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goesForward = true;
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}
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}
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