Skip to main content
Code Golf

Return to Answer

Changed code to prevent the tank from getting into an infinite stand-off. Also realized that I forgot to change the name from my placeholder when I uploaded the code.
Source Link
Nexus
Nexus
  • 641
  • 4
  • 6
public class DodgeTank implements Tank {

private int lastMove;
@Override
public void onSpawn(Battlefield field, MapPoint position){
    //nada
}
@Override
public TurnAction onTurn(Battlefield field, MapPoint position, float health){
    List<MapPoint> tanks = field.find(FieldObjectType.TANK);
    tanks.remove(position);
    MapPoint nearest= new MapPoint(0,0);
    double dis=Double.POSITIVE_INFINITY;
        for (MapPoint tank: tanks){
            double distance=tank.distanceTo(position);
            if (distance<dis){
                nearest=tank;
                dis=distance;
            }
        }
    if (lastMove*Math.random()+(4-health/25)<4<5){//Attack
        lastMove++;
        return TurnAction.createShootActionRadians(position.angleBetweenRadians(nearest));
    }
    else {
        lastMove=0;
        double cumulativeAngle=position.angleBetweenRadians(nearest);
        for (MapPoint tank : tanks){
            cumulativeAngle+=position.angleBetweenRadians(tank);
        }
        cumulativeAngle/=tanks.size();
        cumulativeAngle/=(Math.PI/2);
        int dir=(int)Math.floor(cumulativeAngle);
        TurnAction move;
        switch (dir){
            case 0:
                if (position.getX()>2&&field.getObjectTypeAt(position.cloneAndTranslate(-3, 0)).equals(FieldObjectType.NOTHING)){
                    return TurnAction.createMoveAction(TurnAction.Direction.WEST, 3);
                }
                return TurnAction.createMoveAction(TurnAction.Direction.EAST, 3);
            case 1: 
                if (position.getY()>2&&field.getObjectTypeAt(position.cloneAndTranslate(0, -3)).equals(FieldObjectType.NOTHING)){
                    return TurnAction.createMoveAction(TurnAction.Direction.SOUTH, 3);
                }
                return TurnAction.createMoveAction(TurnAction.Direction.NORTH, 3);
            case -1:
                if ((position.getY()<(Battlefield.FIELD_SIZE-4))&&field.getObjectTypeAt(position.cloneAndTranslate(0,3)).equals(FieldObjectType.NOTHING)){
                    return TurnAction.createMoveAction(TurnAction.Direction.NORTH, 3);
                }
                return TurnAction.createMoveAction(TurnAction.Direction.SOUTH, 3);
            default:
                if ((position.getX()<(Battlefield.FIELD_SIZE-4))&&field.getObjectTypeAt(position.cloneAndTranslate(3,0)).equals(FieldObjectType.NOTHING)){
                    return TurnAction.createMoveAction(TurnAction.Direction.EAST, 3);
                }
                return TurnAction.createMoveAction(TurnAction.Direction.WEST, 3);
        }
    }
}
@Override
public void turnFeedback(MapPoint newPosition, FieldObjectType hit){
    //Nada
}
@Override
public void onDestroyed(Battlefield field, boolean won){
  //if (won) this.taunt();
  //else this.selfDestruct();
}
@Override
public String getName(){
    return "ATank";"Dodge Tank";
}
}

public class DodgeTank implements Tank {

private int lastMove;
@Override
public void onSpawn(Battlefield field, MapPoint position){
    //nada
}
@Override
public TurnAction onTurn(Battlefield field, MapPoint position, float health){
    List<MapPoint> tanks = field.find(FieldObjectType.TANK);
    tanks.remove(position);
    MapPoint nearest= new MapPoint(0,0);
    double dis=Double.POSITIVE_INFINITY;
        for (MapPoint tank: tanks){
            double distance=tank.distanceTo(position);
            if (distance<dis){
                nearest=tank;
                dis=distance;
            }
        }
    if (lastMove*Math.random()+(4-health/25)<4){//Attack
        lastMove++;
        return TurnAction.createShootActionRadians(position.angleBetweenRadians(nearest));
    }
    else {
        lastMove=0;
        double cumulativeAngle=position.angleBetweenRadians(nearest);
        for (MapPoint tank : tanks){
            cumulativeAngle+=position.angleBetweenRadians(tank);
        }
        cumulativeAngle/=tanks.size();
        cumulativeAngle/=(Math.PI/2);
        int dir=(int)Math.floor(cumulativeAngle);
        TurnAction move;
        switch (dir){
            case 0:
                if (position.getX()>2&&field.getObjectTypeAt(position.cloneAndTranslate(-3, 0)).equals(FieldObjectType.NOTHING)){
                    return TurnAction.createMoveAction(TurnAction.Direction.WEST, 3);
                }
                return TurnAction.createMoveAction(TurnAction.Direction.EAST, 3);
            case 1: 
                if (position.getY()>2&&field.getObjectTypeAt(position.cloneAndTranslate(0, -3)).equals(FieldObjectType.NOTHING)){
                    return TurnAction.createMoveAction(TurnAction.Direction.SOUTH, 3);
                }
                return TurnAction.createMoveAction(TurnAction.Direction.NORTH, 3);
            case -1:
                if ((position.getY()<(Battlefield.FIELD_SIZE-4))&&field.getObjectTypeAt(position.cloneAndTranslate(0,3)).equals(FieldObjectType.NOTHING)){
                    return TurnAction.createMoveAction(TurnAction.Direction.NORTH, 3);
                }
                return TurnAction.createMoveAction(TurnAction.Direction.SOUTH, 3);
            default:
                if ((position.getX()<(Battlefield.FIELD_SIZE-4))&&field.getObjectTypeAt(position.cloneAndTranslate(3,0)).equals(FieldObjectType.NOTHING)){
                    return TurnAction.createMoveAction(TurnAction.Direction.EAST, 3);
                }
                return TurnAction.createMoveAction(TurnAction.Direction.WEST, 3);
        }
    }
}
@Override
public void turnFeedback(MapPoint newPosition, FieldObjectType hit){
    //Nada
}
@Override
public void onDestroyed(Battlefield field, boolean won){
  //if (won) this.taunt();
  //else this.selfDestruct();
}
@Override
public String getName(){
    return "ATank";
}
}

public class DodgeTank implements Tank {

private int lastMove;
@Override
public void onSpawn(Battlefield field, MapPoint position){
    //nada
}
@Override
public TurnAction onTurn(Battlefield field, MapPoint position, float health){
    List<MapPoint> tanks = field.find(FieldObjectType.TANK);
    tanks.remove(position);
    MapPoint nearest= new MapPoint(0,0);
    double dis=Double.POSITIVE_INFINITY;
        for (MapPoint tank: tanks){
            double distance=tank.distanceTo(position);
            if (distance<dis){
                nearest=tank;
                dis=distance;
            }
        }
    if (lastMove*Math.random()+(4-health/25)<5){//Attack
        lastMove++;
        return TurnAction.createShootActionRadians(position.angleBetweenRadians(nearest));
    }
    else {
        lastMove=0;
        double cumulativeAngle=position.angleBetweenRadians(nearest);
        for (MapPoint tank : tanks){
            cumulativeAngle+=position.angleBetweenRadians(tank);
        }
        cumulativeAngle/=tanks.size();
        cumulativeAngle/=(Math.PI/2);
        int dir=(int)Math.floor(cumulativeAngle);
        TurnAction move;
        switch (dir){
            case 0:
                if (position.getX()>2&&field.getObjectTypeAt(position.cloneAndTranslate(-3, 0)).equals(FieldObjectType.NOTHING)){
                    return TurnAction.createMoveAction(TurnAction.Direction.WEST, 3);
                }
                return TurnAction.createMoveAction(TurnAction.Direction.EAST, 3);
            case 1: 
                if (position.getY()>2&&field.getObjectTypeAt(position.cloneAndTranslate(0, -3)).equals(FieldObjectType.NOTHING)){
                    return TurnAction.createMoveAction(TurnAction.Direction.SOUTH, 3);
                }
                return TurnAction.createMoveAction(TurnAction.Direction.NORTH, 3);
            case -1:
                if ((position.getY()<(Battlefield.FIELD_SIZE-4))&&field.getObjectTypeAt(position.cloneAndTranslate(0,3)).equals(FieldObjectType.NOTHING)){
                    return TurnAction.createMoveAction(TurnAction.Direction.NORTH, 3);
                }
                return TurnAction.createMoveAction(TurnAction.Direction.SOUTH, 3);
            default:
                if ((position.getX()<(Battlefield.FIELD_SIZE-4))&&field.getObjectTypeAt(position.cloneAndTranslate(3,0)).equals(FieldObjectType.NOTHING)){
                    return TurnAction.createMoveAction(TurnAction.Direction.EAST, 3);
                }
                return TurnAction.createMoveAction(TurnAction.Direction.WEST, 3);
        }
    }
}
@Override
public void turnFeedback(MapPoint newPosition, FieldObjectType hit){
    //Nada
}
@Override
public void onDestroyed(Battlefield field, boolean won){
  //if (won) this.taunt();
  //else this.selfDestruct();
}
@Override
public String getName(){
    return "Dodge Tank";
}
}
Source Link
Nexus
Nexus
  • 641
  • 4
  • 6

Dodge Tank

This tank will shoot at the closest tank. Every so often, depending on its health and the last time it moved, it will try to move perpendicular to the closest tank in an attempt to dodge its lasers.

public class DodgeTank implements Tank {

private int lastMove;
@Override
public void onSpawn(Battlefield field, MapPoint position){
    //nada
}
@Override
public TurnAction onTurn(Battlefield field, MapPoint position, float health){
    List<MapPoint> tanks = field.find(FieldObjectType.TANK);
    tanks.remove(position);
    MapPoint nearest= new MapPoint(0,0);
    double dis=Double.POSITIVE_INFINITY;
        for (MapPoint tank: tanks){
            double distance=tank.distanceTo(position);
            if (distance<dis){
                nearest=tank;
                dis=distance;
            }
        }
    if (lastMove*Math.random()+(4-health/25)<4){//Attack
        lastMove++;
        return TurnAction.createShootActionRadians(position.angleBetweenRadians(nearest));
    }
    else {
        lastMove=0;
        double cumulativeAngle=position.angleBetweenRadians(nearest);
        for (MapPoint tank : tanks){
            cumulativeAngle+=position.angleBetweenRadians(tank);
        }
        cumulativeAngle/=tanks.size();
        cumulativeAngle/=(Math.PI/2);
        int dir=(int)Math.floor(cumulativeAngle);
        TurnAction move;
        switch (dir){
            case 0:
                if (position.getX()>2&&field.getObjectTypeAt(position.cloneAndTranslate(-3, 0)).equals(FieldObjectType.NOTHING)){
                    return TurnAction.createMoveAction(TurnAction.Direction.WEST, 3);
                }
                return TurnAction.createMoveAction(TurnAction.Direction.EAST, 3);
            case 1: 
                if (position.getY()>2&&field.getObjectTypeAt(position.cloneAndTranslate(0, -3)).equals(FieldObjectType.NOTHING)){
                    return TurnAction.createMoveAction(TurnAction.Direction.SOUTH, 3);
                }
                return TurnAction.createMoveAction(TurnAction.Direction.NORTH, 3);
            case -1:
                if ((position.getY()<(Battlefield.FIELD_SIZE-4))&&field.getObjectTypeAt(position.cloneAndTranslate(0,3)).equals(FieldObjectType.NOTHING)){
                    return TurnAction.createMoveAction(TurnAction.Direction.NORTH, 3);
                }
                return TurnAction.createMoveAction(TurnAction.Direction.SOUTH, 3);
            default:
                if ((position.getX()<(Battlefield.FIELD_SIZE-4))&&field.getObjectTypeAt(position.cloneAndTranslate(3,0)).equals(FieldObjectType.NOTHING)){
                    return TurnAction.createMoveAction(TurnAction.Direction.EAST, 3);
                }
                return TurnAction.createMoveAction(TurnAction.Direction.WEST, 3);
        }
    }
}
@Override
public void turnFeedback(MapPoint newPosition, FieldObjectType hit){
    //Nada
}
@Override
public void onDestroyed(Battlefield field, boolean won){
  //if (won) this.taunt();
  //else this.selfDestruct();
}
@Override
public String getName(){
    return "ATank";
}
}