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Currently, you are creating an enemy after every 150 act steps. To increase the spawn rate, you would lower that number. If the score is to be what determines how much to lower that number, then you would need to subtract some expression of the score from it. You would need to consider what multiple of (score/15) to lessen it by. What value you choose will effect the game duration as well as what possible maximum score may be achieved.

Got it. Thanks!

Actually, it seems like its still doing it

tnx i forgot

thankyou so much danpost

You are creating new images every act cycle. So, first thing you should do is move, at minimum, lines 22 through 35 to outside the act method. Next thing I noticed was that you have 6 different variable for movement, which is way overboard; but, I won't get into that right now (as you just want a quick fix). Line 42 should probably be moved outside the act method, so if no keys are currently pressed, the last moveme

That's exactly what i was looking for thanks for the help =)

It worked! Thanks.

Here is the problem. You are taking two String objects and asking if they are the same object. That is, you are not asking about what the two distinct String objects contain as far as their characters. You compare the contents of two strings using the equals method: <Code Omitted>It is always best to put the literal (or known entity) first (so you are not calling a method on a null object).

Thank you.

touché

... and is called by the greenfoot framework on actors when added into a world.

Well, you probably do no want cars to spawn on each other, so using a random timer would probably be best. Something like this: <Code Omitted>In line 8, the added value, 30, is the minimum delay time and the random part, 150 is the variable delay range beyond the initial 30.

Thank you!