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

/**
 * Write a description of class Player here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Player extends Actor
{
    int MAX_HEALTH = 3;
    int health = MAX_HEALTH;

    int jumpBoostDuration = -1;
    int jumpBoostStrength = 5;

    boolean projectileReady = false;
    int projectileTimer;

    private int speed = 6;
    private int currentJumpStrength;
    private int defaultJumpStrength = 15;
    private int gravity = 1;

    private int verticalSpeed = 0;
    private boolean onGround = false;

    public void act()
    {
        collision();
        moveLeftAndRight();
        jump();
        fall();
        handlePowerUps();
        shootProjectile();
        checkHealth();
        playerRotation();

        //Check ob der Spieler am unteren Fensterrand ist
        if (getY()+1 >= getWorld().getHeight()){
            Greenfoot.setWorld(new GameOverWorld());
        }
        //Check ob der Spieler an der Seite vom Fenster ist
        if (getX() <= 0){
            setLocation(getWorld().getWidth(), getY());
        } else if (getX() >= getWorld().getWidth()-1){
            setLocation(1, getY());
        }
    }

    // Bewegung nach links und rechts
    private void moveLeftAndRight()
    {
        if (Greenfoot.isKeyDown("a"))
        {
            setLocation(getX() - speed, getY());
            setImage("Player.png");
        }

        if (Greenfoot.isKeyDown("d"))
        {
            setLocation(getX() + speed, getY());
            setImage("Player.png");
        }
    }

    // Springen
    private void jump()
    {
        if (Greenfoot.isKeyDown("space") && onGround)
        {
            verticalSpeed = -currentJumpStrength;
            onGround = false;
        }
    }

    // Schwerkraft 
    private void fall() { 
        int oldY = getY(); 
        verticalSpeed += gravity; 
        int newY = getY() + verticalSpeed; 
        setLocation(getX(), newY); 
        // Alle Plattformen überprüfen, die der Spieler berührt 
        java.util.List<Plattform> platforms = getIntersectingObjects(Plattform.class); 
        boolean landed = false; 
        for (Plattform platform : platforms) { 
            int groundTop = platform.getY() - platform.getImage().getHeight() / 2; 
            int characterBottom = getY() + getImage().getHeight() / 2; 
            int oldCharacterBottom = oldY + getImage().getHeight() / 2; 
            // Prüfen, ob der Spieler von oben auf diese Plattform fällt 
            if (verticalSpeed >= 0 && oldCharacterBottom <= groundTop && characterBottom >= groundTop) {
                setLocation( getX(), groundTop - getImage().getHeight() / 2 ); 
                verticalSpeed = 0;
                landed = true; 
                break; 
            } 
        } 
        onGround = landed; 
    }

    public void shootProjectile(){
        projectileTimer++;
        MouseInfo mouse = Greenfoot.getMouseInfo();
        if (Greenfoot.mousePressed(null)){
            PlayerProjectile playerProjectile = new PlayerProjectile();
            getWorld().addObject(playerProjectile, getX(), getY());
            playerProjectile.turnTowards(Greenfoot.getMouseInfo().getX(), Greenfoot.getMouseInfo().getY());
            projectileReady = false;
        }
        if (projectileTimer >= 10){
            projectileReady = true;
            projectileTimer = 0;
        }
    }

    public void collision(){
        if (getIntersectingObjects(Projectile.class).size()>0
        || getIntersectingObjects(Enemy.class).size()>0
        || getIntersectingObjects(Spike.class).size()>0)
        {
            health--;
            getWorld().removeObjects(getIntersectingObjects(Projectile.class));
            getWorld().removeObjects(getIntersectingObjects(Enemy.class));
            getWorld().removeObjects(getWorld().getObjects(Spike.class));
        }
    }

    public void checkHealth(){
        if (health <= 0){
            Greenfoot.setWorld(new GameOverWorld());
        }
    }

    public void handlePowerUps(){
        if (jumpBoostDuration >= 0){
            jumpBoostDuration -= 1;
        } else if (jumpBoostDuration <= -1){
            currentJumpStrength = defaultJumpStrength;
        }
    }

    public void receivePowerUp(int duration, String type){
        switch(type){
            case "dummy":
                break;
            case "JumpBoost":
                currentJumpStrength = defaultJumpStrength;
                currentJumpStrength += jumpBoostStrength;
                jumpBoostDuration = duration;
                break;
            case "Heal":
                if (health < MAX_HEALTH){
                    health++;
                }
                break;
            case "GroundPower":
                World theWorld= this.getWorld();
                if(!theWorld.getObjects(TemporaryGround.class).isEmpty())
                {
                    theWorld.getObjects(TemporaryGround.class).get(0).RefreshLifeToDuration(duration);
                }
                else
                {
                    theWorld.addObject((new TemporaryGround(duration)), 200, 575);
                }
                break;
        }
    }
    
    public void playerRotation(){
        if(Greenfoot.isKeyDown("a")){
            setImage("PlayerLeft.png");
        }
        if(Greenfoot.isKeyDown("d")){
            setImage("Player.png");
        }
    }
}