Player Movement:

A - links D - rechts Leertaste - Springen
2026-09-15 09:57:01 +02:00
parent ec0e80fe97
commit 9e35cc9ebb
7 changed files with 140 additions and 47 deletions
@@ -1,38 +1,74 @@
-import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
+import greenfoot.*;

-/**
- * Write a description of class Player here.
- * 
- * @author (your name) 
- * @version (a version number or a date)
- */
 public class Player extends Actor
 {
-    int velocityY = 0;
-    int speed = 5;
+    private int speed = 4;
+    private int jumpStrength = 12;
+    private int gravity = 1;
+    
+    private int verticalSpeed = 0;
+    private boolean onGround = false;
+
    public void act()
    {
-        player_movement();
+        moveLeftAndRight();
+        jump();
+        fall();
    }
-    
-    public void player_movement(){
-        if (Greenfoot.isKeyDown("D")){
-            setLocation(getX()+speed, getY());
+
+    // Bewegung nach links und rechts
+    private void moveLeftAndRight()
+    {
+        if (Greenfoot.isKeyDown("a"))
+        {
+            setLocation(getX() - speed, getY());
        }
-        if (Greenfoot.isKeyDown("A")){
-            setLocation(getX()-speed, getY());
+
+        if (Greenfoot.isKeyDown("d"))
+        {
+            setLocation(getX() + speed, getY());
        }
    }
-    
-    public boolean onGround(){
-        int height = getImage().getHeight();
-        
-        Actor floor = getOneObjectAtOffset(
-            0,
-            height / 2 + 1,
-            Ground.class
-        );
-        
-        return floor != null;
+
+    // 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;
+        }
    }
 }