troy-simulator/Fighter.java at main · 10rv/troy-simulator · GitHub

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import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class Fighter here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class Fighter extends Character
{
    /**
     * Act - do whatever the Fighter wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */

    public double recoil_acceleration = 3.0;
    public double initial_recoil_velocity = 30.0;
    public double recoil_velocity = 0.0;
    public boolean recoil = false;

    public Fighter() {
        velocity = 20;
    }
    public void act()
    {
        checkKeys();
        fall();
    }

    public void moveRight() {
        if (!recoil) {
            setLocation(getX() + velocity, getY());
        }
    }
    public void moveLeft() {
        if (!recoil) {
            setLocation(getX() - velocity, getY());
        }
    }
    public void jump() {
        if (getY() == ground) {
            gravity_velocity = initial_jump_velocity;
            setLocation(getX(), (int)(getY() + gravity_velocity));
        }
    }
    public void fall() {
        // vertical acceleration
        if (getY() < ground) {
            gravity_velocity += gravity;
            setLocation(getX(), (int)(getY() + gravity_velocity));
        }
        if (getY() > ground) {
            setLocation(getX(), ground);
        }
        // recoil acceleration
        if (recoil_velocity < 0) {
            recoil_velocity = 0;
            recoil = false;
        }
        if (recoil) {
            Enemy enemy = getWorld().getObjects(Enemy.class).get(0);
            recoil_velocity -= recoil_acceleration;
            if (enemy.getX() > getX()) {
                setLocation((int)(getX() - recoil_velocity), getY());
            }
            else {
                setLocation((int)(getX() + recoil_velocity), getY());
            }
        }
    }
    public void punch() {
        if (!getObjectsInRange(70, Enemy.class).isEmpty()) {
            Enemy enemy = getObjectsInRange(70, Enemy.class).get(0);
            enemy.hp -= 5;
            recoil = true;
            recoil_velocity = initial_recoil_velocity;
        }
    }

    private void checkKeys() {
        if (Greenfoot.isKeyDown("left") || Greenfoot.isKeyDown("a")) {
            setImage(left_file);
            moveLeft();
        }
        if (Greenfoot.isKeyDown("right") || Greenfoot.isKeyDown("d")) {
            setImage(right_file);
            moveRight();
        }
        if (Greenfoot.isKeyDown("space") || Greenfoot.isKeyDown("w")) {
            setImage(jump_file);
            jump();
        }
        if (Greenfoot.mouseClicked(null)) {
            // setImage(punch_file);
            punch();
        }
    }
}