PacMan/src/main/java/se/urmo/game/entities/PacMan.java

package se.urmo.game.entities;

import lombok.Getter;
import lombok.Setter;
import lombok.extern.slf4j.Slf4j;
import se.urmo.game.collision.CollisionChecker;
import se.urmo.game.util.Direction;
import se.urmo.game.main.Game;
import se.urmo.game.map.GameMap;
import se.urmo.game.util.LoadSave;
import se.urmo.game.util.MiscUtil;

import java.awt.*;
import java.awt.image.BufferedImage;
import java.util.Arrays;


@Slf4j
public class PacMan {
    public static final int PACMAN_SIZE = 32;
    public static final int PACMAN_OFFSET = PACMAN_SIZE / 2;
    private static final int COLLISION_BOX_SIZE = 16;
    private static final int COLLISION_BOX_OFFSET = (PACMAN_SIZE - COLLISION_BOX_SIZE) / 2;
    private final Game game;
    private final Point startPosition;
    private int aniTick = 0;
    private int aniIndex = 0;
    private static final int ANIMATION_UPDATE_FREQUENCY = 10;
    private int speed = 1;
    @Setter
    private boolean moving;
    private final BufferedImage[][] movmentImages = new BufferedImage[4][4];
    @Getter
    private Point position;
    private static final BufferedImage COLLISION_BOX = MiscUtil.createOutlinedBox(COLLISION_BOX_SIZE, COLLISION_BOX_SIZE, Color.yellow, 2);
    private final CollisionChecker collisionChecker;
    @Setter
    @Getter
    private Direction direction = Direction.NONE;

    public PacMan(Game game, CollisionChecker collisionChecker) {
        this.game = game;
        this.collisionChecker = collisionChecker;
        this.position = new Point(
                26 * GameMap.MAP_TILESIZE + GameMap.OFFSET_X,
                13 * GameMap.MAP_TILESIZE + GameMap.OFFSET_Y + (GameMap.MAP_TILESIZE / 2));
        this.startPosition = this.position;
        loadAnimation();
    }

    private void loadAnimation() {
        BufferedImage[][] image = new BufferedImage[3][4];

        BufferedImage img = LoadSave.GetSpriteAtlas("sprites/PacManAssets-PacMan.png");
        for (int row = 0; row < 3; row++) {
            for (int col = 0; col < 4; col++) {
                image[row][col] = img.getSubimage(PACMAN_SIZE * col, PACMAN_SIZE * row, PACMAN_SIZE, PACMAN_SIZE);
            }
        }
        movmentImages[Direction.RIGHT.ordinal()] = image[0];
        movmentImages[Direction.LEFT.ordinal()] = Arrays.stream(image[0])
                .map(i -> LoadSave.rotate(i, 180))
                .toArray(BufferedImage[]::new);
        movmentImages[Direction.DOWN.ordinal()] = Arrays.stream(image[0])
                .map(i -> LoadSave.rotate(i, 90))
                .toArray(BufferedImage[]::new);
        movmentImages[Direction.UP.ordinal()] = Arrays.stream(image[0])
                .map(i -> LoadSave.rotate(i, 270))
                .toArray(BufferedImage[]::new);
    }

    public void draw(Graphics g) {
        g.drawImage(
                movmentImages[direction==Direction.NONE ? 0 : direction.ordinal()][aniIndex],
                position.x - PACMAN_OFFSET,
                position.y - PACMAN_OFFSET,
                PACMAN_SIZE,
                PACMAN_SIZE, null);
        g.drawImage(COLLISION_BOX, position.x - COLLISION_BOX_OFFSET, position.y - COLLISION_BOX_OFFSET, COLLISION_BOX_SIZE, COLLISION_BOX_SIZE, null);
        //g.setColor(Color.BLUE);
        //g.fillRect(position.x-1, position.y-1, 3, 3);
    }

    public void update() {
        updateAnimationTick();
        if(moving) {
            Point newPosition = switch (direction) {
                case RIGHT -> new Point(position.x + speed, position.y);
                case LEFT -> new Point(position.x - speed, position.y);
                case UP -> new Point(position.x, position.y - speed);
                case DOWN -> new Point(position.x, position.y + speed);
                default -> throw new IllegalStateException("Unexpected value: " + direction);
            };
            log.debug("At: {},trying to move {} to {}", position, direction.name(), newPosition);
            Point destination = collisionChecker.getValidDestination(direction, newPosition, COLLISION_BOX_SIZE, COLLISION_BOX_SIZE);

            if (destination != null) {
                position = destination;
            }
        }
    }

    private void updateAnimationTick() {
        if (moving) {
            aniTick++;
            if (aniTick >= ANIMATION_UPDATE_FREQUENCY) {
                aniTick = 0;
                aniIndex++;
                if (aniIndex >= 4) {
                    aniIndex = 0;
                }

            }
        }
    }

    public double distanceTo(Point point) {
        return position.distance(point);
    }

    public void loseLife() {

    }

    public void resetPosition() {
        position = startPosition;
    }

    public Image getLifeIcon() {
        return movmentImages[0][1];
    }
}