Discussions

I believe the problem stems from the statement that subtracts 5 from the time. I do not see any code that counters that statement (prevents 'time' from going below zero, when no more zombies will be spawned). Maybe you should explain what the variable 'time' is supposed to do. Also, the 'if' condition on line 10 will always be 'true'. The previous statement sets 'spawn' to a number between zero and two inclusive.

Got it! Cheers! Here's the code for a 'left wing' object:

I'd also suggest that you want to 'return' at line 35 since otherwise the next 'if' block will always be processed if a click causes the piece to be selected, i.e: - line 31 sets selected=true - line 38 - in "if(selected)" - the condition is now true. - line 49 - in "if(Greenfoot.mouseClicked(null))" - the condition is also true.

If you mean, "Do I implement the ground class scrolling with my background scrolling, then certainly. As the background moves, move all the Ground object the same amount. If 'scrollAmt' was the number of pixels to scroll by each act method, then: <Code Omitted>You will have to add new ground into the world on the one side and remove it from the world on the other. It is best to use an unbounded world.

In line 63, 64 you are just checking whether the X component of the actors location is in a certain area. You also have to check the Y component. So after line 64 you should add some code like this: <Code Omitted> You will have to do the same after line 71. If you want your goal to get bigger you have to use a greater value than 100. For a smaler goal a smaler value.

Hadn't thought of directly making it a negative number with all the other ones........ but i can't believe i made that mistake!!!! Thank you sooo much

Thank you very much :D

A boolean variable is just like any other variable (like an 'int' variable). Except whereas an int variable can hold a lot of different values - 0, 1, 2, 3, 1000, -1, etc - a boolean variable can only have two possible values, 'true' and 'false'. There's nothing magic about them otherwise - they work exactly as other variables do. Because the value of a boolean is already true or false, you don't need to compare them in 'if' statements, i.e. instead of writing: <Code Omitted> you can write: <Code Omitted>

Thanks it works perfectly, I didn't think about setting the method in the subclass, meaning that we keep the same Score in fact.

Ohk.. thanks will look into it.

Greenfoot.mouseClicked(null) worked thank you very much @danpost

Never mind.. I fixed it.

oh, well there you go

Your welcome!