145 lines
3.0 KiB
Java
145 lines
3.0 KiB
Java
package dev.lh;
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import java.awt.Color;
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import java.awt.Graphics;
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import java.awt.Point;
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import java.awt.Rectangle;
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import java.util.ArrayList;
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import java.util.List;
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import dev.lh.ui.GameWindow;
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/**
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* Project: <strong>Snake</strong><br>
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* File: <strong>Snake.java</strong><br>
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* Created: <strong>11 Mar 2020</strong><br>
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*
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* @author Leon Hofmeister
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* @since Snake 1.0
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*/
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public class Snake implements Updateable {
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/**
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* This enum contains all possible directions for the {@link Snake}.<br>
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* <br>
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* Project: <strong>Snake</strong><br>
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* File: <strong>Snake.java</strong><br>
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* Created: <strong>11 Mar 2020</strong><br>
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*
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* @author Leon Hofmeister
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* @since Snake 1.0
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*/
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public static enum Direction {
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/**
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* Use if the snake should head left.
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*/
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Left,
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/**
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* Use if the snake should head right.
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*/
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Right,
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/**
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* Use if the snake should head up.
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*/
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Up,
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/**
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* Use if the snake should head down.
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*/
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Down;
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}
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private Direction Richtung;
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private int length;
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private List<Point> tiles = new ArrayList<>();
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private static FoodFactory foodFactory = FoodFactory.getInstance();
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private final int snakeSize = 10;
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/**
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* Constructs a new Snake with the given length in tiles.
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*
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* @param length the length of the snake in tiles
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* @since Snake 1.0
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*/
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public Snake(int length) {
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this.length = length;
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Richtung = Direction.Left;
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for (int i = 0; i < length; i++)
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tiles.add(new Point(320 - 50 * i, 240));
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}// End Constructor
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@Override
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public void nextFrame() {
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int velX = 0, velY = 0;
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switch (Richtung) {
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case Up:
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velY = -snakeSize;
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break;
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case Down:
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velY = snakeSize;
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break;
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case Left:
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velX = -snakeSize;
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break;
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case Right:
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velX = snakeSize;
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break;
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}// switch
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Point next = (Point) tiles.get(0).clone(), cur;
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tiles.get(0).x += velX;
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tiles.get(0).y += velY;
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for (int i = 1; i < length; i++) {
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cur = tiles.get(i);
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tiles.set(i, (Point) next.clone());
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next = cur;
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} // for
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// if(tiles.get(0).x<=0||tiles.get(0).x>=)
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if (foodFactory.checkCollision(new Rectangle(tiles.get(0).x, tiles.get(0).y, snakeSize, snakeSize))) {
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addLength(foodFactory.getAdditionalLength());
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GameWindow game = Main.getGame();
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game.newFood();
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}
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}// End tick
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@Override
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public void render(Graphics g) {
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g.setColor(Color.green);
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for (int i = 0; i < length; i++)
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g.fillRect(tiles.get(i).x, tiles.get(i).y, snakeSize, snakeSize);
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}// End render
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/**
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* @return the current {@link Direction} of the snake
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* @since Snake 1.0
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*/
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public Direction getRichtung() { return Richtung; }
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/**
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* @param richtung the new {@link Direction} of the snake
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* @since Snake 1.0
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*/
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public void setRichtung(Direction richtung) { Richtung = richtung; }
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/**
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* Adds the given length to the current snake object
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*
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* @param additional the number of tiles to add
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* @since Snake 1.0
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*/
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public void addLength(int additional) {
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Point last = tiles.get(tiles.size() - 1);
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for (int i = 0; i < additional; i++)
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tiles.add(last);
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length += additional;
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}
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}
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