1주차 미션 / 서버 1조 문승우

README.md

@@ -1,4 +1,4 @@
-# KUIT4_Server-Ladder
+# KUIT4_Server-ladder.LadderGame
 
 ## 미션 제출 방법
 1. 해당 프로젝트를 fork 한다.

src/main/java/ladder/LadderGame.java

@@ -0,0 +1,26 @@
+package ladder;
+
+import ladder.creator.LadderCreator;
+import ladder.runner.LadderRunner;
+import ladder.wrapper.ArrayIndex;
+
+public class LadderGame {
+
+    private final LadderCreator ladderCreator;
+
+
+    public LadderGame(LadderCreator ladderCreator) {
+        this.ladderCreator = ladderCreator;
+    }
+
+    public void drawLine(Line line){
+        ladderCreator.drawLine(line);
+    }
+
+    public int run (ArrayIndex startingLadderIndex) {
+        LadderRunner ladderRunner = new LadderRunner(ladderCreator.getRows());
+        return ladderRunner.run(startingLadderIndex);
+    }
+
+}
+

src/main/java/ladder/Line.java

@@ -0,0 +1,30 @@
+package ladder;
+
+import ladder.constants.Direction;
+import ladder.wrapper.unsignedInt;
+
+public class Line {
+    private unsignedInt row;
+    private unsignedInt col;
+    private Direction direction;
+
+    private Line(int row, int col, Direction direction) {
+        this.row = unsignedInt.from(row);
+        this.col = unsignedInt.from(col);
+        this.direction = direction;
+    }
+
+    public static Line of(int row, int column, Direction direction) {
+        return new Line(row ,column ,direction);
+    }
+
+    public int getRow() { return this.row.getValue(); }
+
+    public int getColumn() {
+        return this.col.getValue();
+    }
+
+    public Direction getDirection() {
+        return this.direction;
+    }
+}

src/main/java/ladder/Node.java

@@ -0,0 +1,25 @@
+package ladder;
+
+import ladder.constants.nodeState;
+
+public class Node {
+
+    private nodeState state;
+
+    private Node(nodeState state) {
+        this.state = state;
+    }
+
+    public static Node from(nodeState state){
+        return new Node(state);
+    }
+
+    public void setLine(nodeState state){
+        this.state = state;
+    }
+
+    public nodeState getState() {
+        return state;
+    }
+
+}

src/main/java/ladder/Player.java

@@ -0,0 +1,44 @@
+package ladder;
+
+import ladder.wrapper.ArrayIndex;
+import ladder.wrapper.unsignedInt;
+
+public class Player {
+
+    unsignedInt currentDepth;
+    ArrayIndex currentLadderIndex;
+
+    public int getCurrentDepth() {
+        return currentDepth.getValue();
+    }
+
+    private Player(ArrayIndex currentLadderIndex) {
+        this.currentDepth = currentDepth.from(0);
+        this.currentLadderIndex = currentLadderIndex;
+    }
+
+    public static Player startingFrom(ArrayIndex currentLadderIndex) {
+        return new Player(currentLadderIndex);
+    }
+
+    public boolean isAtBottom(int rowLength) {
+        return currentDepth.getValue() == rowLength;
+    }
+
+    public void moveToBottom() {
+        currentDepth.increment();
+    }
+
+    public void moveIfThereIsLineIn(Row row) {
+            //오른쪽에 있을 경우
+            if(row.hasRightLine(currentLadderIndex)) {
+                currentLadderIndex.increment();
+            } else if (row.hasLeftLine(currentLadderIndex)){
+                currentLadderIndex.decrement();
+            }
+    }
+
+    public int getCurrentLadderIndex() {
+        return currentLadderIndex.getIndex();
+    }
+}

src/main/java/ladder/Row.java

@@ -0,0 +1,90 @@
+package ladder;
+
+import ladder.constants.Direction;
+import ladder.constants.ExceptionMessage;
+import ladder.constants.nodeState;
+import ladder.wrapper.ArrayIndex;
+import ladder.wrapper.unsignedInt;
+
+public class Row {
+    private Node[] nodes;
+
+    public Row(int column) {
+        nodes = new Node[column];
+        for (int i = 0; i < column; i++) {
+            nodes[i] = Node.from(nodeState.empty);
+        }
+    }
+
+    public int LineLength() {
+        return nodes.length;
+    }
+
+    public nodeState currentState(int index) {
+        return nodes[index].getState();
+    }
+
+    public void drawLineAt(unsignedInt position, Direction direction) {
+        vaildateLine(position, direction);
+
+        if (isLineToLeft(direction)) {
+            drawLeftLine(position);
+        }
+
+        if (isLineToRight(direction)) {
+            drawRightLine(position);
+        }
+    }
+
+    private void vaildateLine(unsignedInt position, Direction direction) {
+
+        if(position.getValue() < 0 || position.getValue() >= LineLength()) {
+            throw new IllegalArgumentException(ExceptionMessage.INVALID_DRAW_POSITION.getMessage());
+        }
+
+        int lineEndingAt = position.getValue() + direction.getValue();
+        if(lineEndingAt < 0 || lineEndingAt >= LineLength()) {
+            throw new IllegalArgumentException(ExceptionMessage.INVALID_DRAW_POSITION.getMessage());
+        }
+
+        if((nodes[position.getValue()].getState() != nodeState.empty) || (nodes[lineEndingAt].getState() != nodeState.empty)) {
+            throw new IllegalArgumentException(ExceptionMessage.INVALID_DRAW_POSITION.getMessage());
+        }
+    }
+
+
+    private static boolean isLineToLeft(Direction direction) {
+        return direction == Direction.LEFT;
+    }
+
+    private static boolean isLineToRight(Direction direction) {
+        return direction == Direction.RIGHT;
+    }
+
+    private void drawLeftLine(unsignedInt position) {
+        nodes[position.getValue()].setLine(nodeState.RIGHT);
+        nodes[position.getValue() - 1].setLine(nodeState.LEFT);
+    }
+
+    private void drawRightLine(unsignedInt position) {
+        nodes[position.getValue()].setLine(nodeState.LEFT);
+        nodes[position.getValue() + 1].setLine(nodeState.RIGHT);
+    }
+
+    public boolean hasRightLine(ArrayIndex currentLadderIndex){
+        if(currentLadderIndex.getIndex() == (nodes.length - 1)){
+            return false;
+        } else {
+            return currentState(currentLadderIndex.getIndex()+1) == nodeState.RIGHT;
+        }
+    }
+
+    public boolean hasLeftLine(ArrayIndex currentLadderIndex){
+        if(currentLadderIndex.getIndex() == 0){
+            return false;
+        } else {
+            return currentState(currentLadderIndex.getIndex()-1) == nodeState.LEFT;
+        }
+    }
+
+}

src/main/java/ladder/constants/Direction.java

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+package ladder.constants;
+
+public enum Direction {
+    LEFT(-1) , RIGHT(1);
+
+    private int value;
+
+    private Direction(int value) {
+        this.value = value;
+    }
+
+    public int getValue() {
+        return value;
+    }
+}