Greenfoot

nooby123

2012/1/14

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getWorld().getColorAt(getX(),getY())==new Color(51,153,255) This is the method I'm running. Why won't it work?

danpost

2012/1/14

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It appears you are trying to compare a point in the background of the world to a specific color. Maybe you mean

getWorld().getBackground().getColorAt(getX(), getY()) == new Color(51, 153, 255)

since 'getColorAt(int, int)' is a method of the GreenfootImage class and needs an image object to execute on.

Builderboy2005

2012/1/14

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That almost works, except for the fact that using the == operator on Objects checks for them being the same object, not to see if they reference the same Data. Instead use the equals() method like so:

getWorld().getBackground().getColorAt(getX(), getY()).equals(new Color(51, 153, 255));

Duta

2012/1/14

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Builderboy2005 wrote...

That almost works, except for the fact that using the == operator on Objects checks for them being the same object, not to see if they reference the same color. Instead use the equals() method like so:

getWorld().getBackground().getColorAt(getX(), getY()).equals(new Color(51, 153, 255));

This. :P It used to trip me up so much when I first started comparing String's >.<

nooby123

2012/1/14

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Thanks!

danpost

2012/1/14

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Duta

2012/1/14

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danpost wrote...

Sorry, I saw the lack of image and went from there, without checking anything else. You know what they say, 'Never assume!'. :< You still got 50% of the fix though, so we forgive you :p

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getColorAt method