src/main/java/ch/zhaw/pm2/racetrack/Car.java

@@ -3,6 +3,8 @@ package ch.zhaw.pm2.racetrack;
 import ch.zhaw.pm2.racetrack.given.CarSpecification;
 import ch.zhaw.pm2.racetrack.strategy.MoveStrategy;
 
+import java.util.Vector;
+
 /**
  * Class representing a car on the racetrack.
  * Uses {@link PositionVector} to store current position on the track grid and current velocity vector.
@@ -48,26 +50,40 @@ public class Car implements CarSpecification {
         setPosition(position);
     }
 
-    public char getId() {
+    /**
+     * Returns the id of the car.
+     *
+     * @return id of the car.
+     */
+    public char getID(){
         return id;
     }
 
-    public PositionVector getVelocity() {
+    /**
+     * Returns the current velocity of the car as a PositionVector.
+     *
+     * @return velocity current velocity of the car.
+     */
+    public PositionVector getVelocity(){
         return velocity;
     }
-
     /**
      * Set this Car position directly, regardless of current position and velocity.
      * This should only be used by the game controller in rare cases to set the crash or winning position.
      * The next position is normaly automatically calculated and set in the {@link #move()} method.
      *
      * @param position The new position to set the car directly to.
+     * @throws IllegalArgumentException if invalid PositionVector is given.
      */
     @Override
     public void setPosition(final PositionVector position) {
-        // TODO: implementation
+        if (position.getX() < 0 || position.getY() < 0) {
+            throw new IllegalArgumentException();
+        }
+        else {
             this.position = position;
         }
+    }
 
     /**
      * Return the position that will apply after the next move at the current velocity.
@@ -77,8 +93,7 @@ public class Car implements CarSpecification {
      */
     @Override
     public PositionVector nextPosition() {
-        // TODO: implementation
+        return new PositionVector(position.getX() + velocity.getX(),position.getY() + velocity.getY());
-        throw new UnsupportedOperationException();
     }
 
     /**
@@ -88,11 +103,18 @@ public class Car implements CarSpecification {
      * Changes only velocity, not position.
      *
      * @param acceleration A Direction vector containing the amounts to add to the velocity in x and y dimension
+     * @throws IllegalArgumentException if PositionVector is not in allowed area.
      */
     @Override
     public void accelerate(PositionVector.Direction acceleration) {
-        // TODO: implementation
+        if(acceleration.vector.getX() < -1 || acceleration.vector.getX() > 1||
-        throw new UnsupportedOperationException();
+            acceleration.vector.getY() < -1 || acceleration.vector.getY() > 1) {
+            throw new IllegalArgumentException();
+        }
+        else {
+            velocity = new PositionVector(velocity.getX() + acceleration.vector.getX(),
+                velocity.getY() + acceleration.vector.getY());
+        }
     }
 
     /**
@@ -100,8 +122,7 @@ public class Car implements CarSpecification {
      */
     @Override
     public void move() {
-        // TODO: implementation
+        position = new PositionVector(position.getX() + velocity.getX(), position.getY() + velocity.getY());
-        throw new UnsupportedOperationException();
     }
 
     /**
@@ -109,8 +130,7 @@ public class Car implements CarSpecification {
      */
     @Override
     public void crash() {
-        // TODO: implementation
+        crashed = true;
-        throw new UnsupportedOperationException();
     }
 
     /**
@@ -120,13 +140,12 @@ public class Car implements CarSpecification {
      */
     @Override
     public boolean isCrashed() {
-        // TODO: implementation
+        return crashed;
-        throw new UnsupportedOperationException();
     }
 
     /**
      * Set move strategy
-     * @param moveStrategy
+     * @param moveStrategy Strategy to be implemented
      */
     public void setMoveStrategy(MoveStrategy moveStrategy) {
         this.moveStrategy = moveStrategy;

src/main/java/ch/zhaw/pm2/racetrack/UserInterface.java

@@ -0,0 +1,94 @@
+package ch.zhaw.pm2.racetrack;
+
+import org.beryx.textio.TextIO;
+import org.beryx.textio.TextIoFactory;
+import org.beryx.textio.TextTerminal;
+
+import java.util.List;
+
+public class UserInterface {
+
+    private final TextIO textIO;
+    private final TextTerminal<?> textTerminal;
+
+    /**
+     * Opens a new Terminal Window and prints the welcome Text
+     * @param welcomeText The Text which will be printed after the windows is opened.
+     */
+    public UserInterface(String welcomeText) {
+        textIO = TextIoFactory.getTextIO();
+        textTerminal = textIO.getTextTerminal();
+
+        textTerminal.println(welcomeText + "\n");
+    }
+
+    /**
+     * asks the user to choose one of the options given.
+     * @param text Text which is printed befor the options are printed. Example: "Select Track file:"
+     * @param options List with the options which can be selected.
+     * @return the list index of the selected option
+     */
+    public int selectOption(String text, List<String> options) {
+        textTerminal.println(text + ":\n");
+        for(int option = 0; option < options.size(); option ++) {
+            textTerminal.println(" " + (option + 1) +  ": " + options.get(option));
+        }
+        return textIO.newIntInputReader().withMinVal(1).withMaxVal(options.size()).read("Enter your choice: ") - 1;
+    }
+
+    /**
+     * gives information which player's turn it is and asks for the direction to accelerate
+     * @param playingCarIndex the index of the player
+     * @param playingCarID the ID of the player
+     * @return the direction which is selected by the player. If null -> quit game
+     */
+    public PositionVector.Direction selectDirection(int playingCarIndex, char playingCarID) {
+        PositionVector.Direction direction = null;
+        textTerminal.println("Playing Car " + playingCarIndex + ": " + playingCarIndex);
+        textTerminal.println("Directions are based on the number pad:");
+        textTerminal.println("7 8 9    7=up-left,    8=up,               9=up-right");
+        textTerminal.println("4 5 6    4=left,       5=no acceleration,  6=right");
+        textTerminal.println("1 2 3    1=down-left,  2=down,             3=down-right");
+        textTerminal.println("\n10 = quit \n");
+
+        while (direction == null) { //asks until a valid input in entered
+            int number = textIO.newIntInputReader().withMinVal(1).withMaxVal(10).read("choose your Acceleration direction: ");
+            if (number == 10) { //quit game
+                return null;
+            }
+            direction = getDirection(number);
+        }
+        return direction;
+    }
+
+    /**
+     * returns the the associated direction Object
+     * @param number the number which was typed by the user
+     * @return the associated direction. If null -> unknown number
+     */
+    private PositionVector.Direction getDirection(int number) {
+        return switch (number) {
+            case 1 -> PositionVector.Direction.DOWN_LEFT;
+            case 2 -> PositionVector.Direction.DOWN;
+            case 3 -> PositionVector.Direction.DOWN_RIGHT;
+            case 4 -> PositionVector.Direction.LEFT;
+            case 5 -> PositionVector.Direction.NONE;
+            case 6 -> PositionVector.Direction.RIGHT;
+            case 7 -> PositionVector.Direction.UP_LEFT;
+            case 8 -> PositionVector.Direction.UP;
+            case 9 -> PositionVector.Direction.UP_RIGHT;
+            default -> null;
+        };
+    }
+
+    /**
+     * prints the given Track in the terminal
+     * @param track the track which should be printed
+     */
+    public void printTrack(Track track) {
+            textTerminal.println(track.toString());
+    }
+
+
+
+}