map repr is working

SchiffeVersenken/.gitignore

@@ -0,0 +1,29 @@
+### IntelliJ IDEA ###
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

SchiffeVersenken/src/BrokenSchiff.java

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+public class BrokenSchiff extends Schiff {
+    // a broken ship that has sunken
+
+    @Override
+    public boolean insertToMap(int x, int y, Feld map, char orientation) {
+        return super.insertToMap(x, y, map, orientation);
+    }
+
+    public BrokenSchiff(int schiffLaenge) {
+        super();
+    }
+
+    public BrokenSchiff() {
+        super();
+        repr='X';
+    }
+}

SchiffeVersenken/src/Feld.java

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+public class Feld {
+    public static final int sizeX = 16;
+    public static final int sizeY = 8;
+    public final NoSchiff none = new NoSchiff();
+
+    public Schiff[][] map = {
+            {none, none, none, none, none, none, none, none, none, none, none, none, none, none, none, none},
+            {none, none, none, none, none, none, none, none, none, none, none, none, none, none, none, none},
+            {none, none, none, none, none, none, none, none, none, none, none, none, none, none, none, none},
+            {none, none, none, none, none, none, none, none, none, none, none, none, none, none, none, none},
+            {none, none, none, none, none, none, none, none, none, none, none, none, none, none, none, none},
+            {none, none, none, none, none, none, none, none, none, none, none, none, none, none, none, none},
+            {none, none, none, none, none, none, none, none, none, none, none, none, none, none, none, none},
+            {none, none, none, none, none, none, none, none, none, none, none, none, none, none, none, none},
+    };
+
+    public Feld() {
+    }
+
+    public void printMap() {
+        StringBuilder output = new StringBuilder("\033[2J");
+        for (Schiff[] row : this.map) {
+            for (Schiff ship : row) {
+                // this seems to be the repr of the Schiff class, not the object actually?
+                output.append(ship.repr());
+            }
+            output.append('\n');
+        }
+        System.out.println(output);
+    }
+
+    public boolean insertShip(Schiff ship, int x, int y) {
+        System.out.println(String.format(
+                "Inserting ship into map: %s",
+                ship
+        ));
+        if (x >= sizeX || y >= sizeY || y < 0 || x < 0) {
+            System.err.println(
+                    String.format("Tried to insert a ship at invalid coordinates:\n"+
+                    "x: %s\n"+
+                    "y: %s\n", x, y)
+            );
+            return false;
+        }
+
+        this.map[x][y] = ship;
+        assert this.map[x][y] == ship;
+        return true;
+    }
+
+    public boolean hit(int x, int y) {
+        if (x >= sizeX || y >= sizeY || y < 0 || x < 0) {
+            System.err.println("Tried to hit a ship at invalid coordinates.");
+            return false;
+        }
+
+        if (map[x][y] instanceof RealSchiff) {
+
+        } else {
+            // no hit
+            return false;
+        }
+
+        // unreachable code
+        return false;
+    }
+}

SchiffeVersenken/src/NoSchiff.java

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+public class NoSchiff extends Schiff {
+    public final int laenge = 1;
+
+    @Override
+    public boolean insertToMap(int x, int y, Feld map, char orientation) {
+        return super.insertToMap(x, y, map, orientation);
+    }
+
+    public NoSchiff() {
+        repr = '~';
+    }
+}

SchiffeVersenken/src/RealSchiff.java

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+public class RealSchiff extends Schiff {
+    @Override
+    public boolean insertToMap(int x, int y, Feld map, char orientation) {
+        return super.insertToMap(x, y, map, orientation);
+    }
+
+    public RealSchiff(int schiffLaenge) {
+        super(schiffLaenge);
+        repr = 'S';
+    }
+}

SchiffeVersenken/src/Schiff.java

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+public abstract class Schiff {
+    public int laenge;
+    public char repr = '?';
+
+    public Schiff(int schiffLaenge) {
+        laenge = schiffLaenge;
+    }
+
+    public char repr() {
+        return this.repr;
+    }
+
+    public boolean insertToMap(int x, int y, Feld map, char orientation) {
+        if (orientation == '>') {
+            for (int i = 0; i < this.laenge; i++){
+                if (!map.insertShip(this, x+i, y)) {
+                    return false;
+                }
+            }
+            return true;
+        }
+        else if (orientation == '<') {
+            for (int i = 0; i < this.laenge; i++){
+                if (!map.insertShip(this, x-i, y)) {
+                    return false;
+                }
+            }
+            return true;
+        }
+        else if (orientation == 'v') {
+            for (int i = 0; i < this.laenge; i++){
+                if (!map.insertShip(this, x, y+i)) {
+                    return false;
+                }
+            }
+            return true;
+        }
+        else if (orientation == '|') {
+            for (int i = 0; i < this.laenge; i++){
+                if (!map.insertShip(this, x, y-i)) {
+                    return false;
+                }
+            }
+            return true;
+        }
+        return false;
+    }
+
+    public Schiff() {
+    }
+}