platform

Platform.java

 import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
-
+import java.util.List;
 /**
  * Write a description of class Platform here.
  * 
@@ -15,6 +15,39 @@ public class Platform extends Interactables
     public void act() 
     {
         disappear();
+        spawnFaceMask();
+    }
+    
+    
+    public void spawnFaceMask(){ 
+        if(Greenfoot.getRandomNumber(100) < 5){
+            spawnItem(new DispoMask());
+        }
+        else if(Greenfoot.getRandomNumber(100) < 2){
+            spawnItem(new DispoMask());
+        }
+    }
+    
+    
+    public void spawnSanitizer(){}
+    
+    
+    public void spawnToiletPaper(){}
+    
+    
+    public boolean hasNoItem(){
+        List<Item> items = getObjectsAtOffset(50, 50, Item.class);
+        return items.isEmpty();
+    }
+    
+    
+    
+    public void spawnItem(Item item){
+        if(hasNoItem()){ 
+            int x = getX();
+            int y = getY();
+            getWorld().addObject(item, x, y + 10);  
+        }
     }
     
 }

Welt.java

@@ -27,7 +27,17 @@ public class Welt extends World
 
     public void act() {
         scroll();
-        spawnCoronaVirus();
+        spawnPlatform();
+    }
+    
+    
+    public void spawnPlatform(){
+            List<Platform> platforms = getObjects(Platform.class);
+            if(platforms.isEmpty()){
+                int width = WIDTH-10;
+                int height = Greenfoot.getRandomNumber(HEIGHT-10);
+                this.addObject(new Platform(),width, height);  
+            }
     }
     
     public void spawnCoronaVirus(){

project.greenfoot

@@ -4,6 +4,7 @@ class.Crowd.image=Menschenmenge.png
 class.DispoMask.image=Maske.png
 class.FaceMask.image=Maske.png
 class.GasMask.image=gasmaske.png
+class.Platform.image=Unbenannt-2.png
 class.Player.image=Player1.png
 class.Sanitizer.image=sanitizer.png
 class.Spit.image=SpitterSpit.png
@@ -19,12 +20,18 @@ dependency2.type=UsesDependency
 dependency3.from=Welt
 dependency3.to=Player
 dependency3.type=UsesDependency
-editor.fx.0.height=0
-editor.fx.0.width=0
-editor.fx.0.x=0
-editor.fx.0.y=0
-height=741
-package.numDependencies=3
+dependency4.from=Platform
+dependency4.to=DispoMask
+dependency4.type=UsesDependency
+dependency5.from=Platform
+dependency5.to=Item
+dependency5.type=UsesDependency
+editor.fx.0.height=739
+editor.fx.0.width=816
+editor.fx.0.x=407
+editor.fx.0.y=25
+height=817
+package.numDependencies=5
 package.numTargets=19
 project.charset=UTF-8
 publish.hasSource=false
@@ -69,17 +76,17 @@ target12.width=80
 target12.x=0
 target12.y=0
 target13.height=50
-target13.name=Spitter
+target13.name=Scroller
 target13.showInterface=false
 target13.type=ClassTarget
 target13.width=80
 target13.x=0
 target13.y=0
 target14.height=50
-target14.name=Interactables
+target14.name=Spitter
 target14.showInterface=false
 target14.type=ClassTarget
-target14.width=120
+target14.width=80
 target14.x=0
 target14.y=0
 target15.height=50
@@ -90,10 +97,10 @@ target15.width=80
 target15.x=0
 target15.y=0
 target16.height=50
-target16.name=Scroller
+target16.name=Interactables
 target16.showInterface=false
 target16.type=ClassTarget
-target16.width=80
+target16.width=120
 target16.x=0
 target16.y=0
 target17.height=50
@@ -174,7 +181,7 @@ target9.width=80
 target9.x=0
 target9.y=0
 version=3.0.0
-width=1366
+width=1440
 world.lastInstantiated=Welt
 xPosition=0
-yPosition=27
+yPosition=25