94 lines
2.1 KiB
Java
94 lines
2.1 KiB
Java
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
|
|
{
|
|
private int speed = 4;
|
|
private int jumpStrength = 12;
|
|
private int gravity = 1;
|
|
|
|
private int verticalSpeed = 0;
|
|
private boolean onGround = false;
|
|
|
|
public void act()
|
|
{
|
|
collision();
|
|
moveLeftAndRight();
|
|
jump();
|
|
fall();
|
|
}
|
|
|
|
// Bewegung nach links und rechts
|
|
private void moveLeftAndRight()
|
|
{
|
|
if (Greenfoot.isKeyDown("a"))
|
|
{
|
|
setLocation(getX() - speed, getY());
|
|
}
|
|
|
|
if (Greenfoot.isKeyDown("d"))
|
|
{
|
|
setLocation(getX() + speed, getY());
|
|
}
|
|
}
|
|
|
|
// Springen
|
|
private void jump()
|
|
{
|
|
if (Greenfoot.isKeyDown("space") && onGround)
|
|
{
|
|
verticalSpeed = -jumpStrength;
|
|
onGround = false;
|
|
}
|
|
}
|
|
|
|
// Schwerkraft und Boden-Kollision
|
|
private void fall()
|
|
{
|
|
verticalSpeed += gravity;
|
|
|
|
int newY = getY() + verticalSpeed;
|
|
|
|
// Prüfen, ob wir auf Ground landen
|
|
setLocation(getX(), newY);
|
|
|
|
Actor ground = getOneIntersectingObject(Ground.class);
|
|
|
|
if (ground != null)
|
|
{
|
|
// Wenn wir fallen, stehen wir auf dem Ground
|
|
if (verticalSpeed >= 0)
|
|
{
|
|
int groundTop = ground.getY() - ground.getImage().getHeight() / 2;
|
|
int characterHalfHeight = getImage().getHeight() / 2;
|
|
|
|
setLocation(getX(), groundTop - characterHalfHeight);
|
|
|
|
verticalSpeed = 0;
|
|
onGround = true;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
onGround = false;
|
|
}
|
|
}
|
|
|
|
public boolean collision(){
|
|
if (getIntersectingObjects(Projectile.class).size()>0)
|
|
{
|
|
Greenfoot.setWorld(new GameOverWorld());
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
}
|