Greenfoot

Randy. wrote ...

2016/4/4

java.lang.Object cannot be converted to greenfoot.Actor

Randy.

2016/4/4

public boolean canSee(Class clss)
    {
        Actor actor = getOneObjectAtOffset(0, 0, clss);
        return actor != null;        
    }

danpost

2016/4/4

If you want any object at offset, use:

getOneObjectAtOffset(0, 0, null)
// or
getOneObjectAtOffset(0, 0, Actor.class)

// do not use
getOneObjectAtOffset(0, 0, Object.class)

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