Discussions

Is there a way to check for objects on a given line?

Hi Guys.. How i make a menu game? for example : play, credit etc.. and then how i make a link for it? help me..

Ok my game is birds eye view, how do I stop the player when he hits a walks into a wall (or just another object).

Hey Everyone. I'm trying to get to make a boss move form point A to point B for the whole level. I've tried a lot, but I have no idea how to!!!! Does anybody know?

Hey again. If you have seen my previous discussion post, I was talking about making a space invaders like game. I still have one last problem that comes with it and it is basically the movement of the enemy ships. In Space Invaders the enemies are in a block and they move together as if they're one character however in my game I want each enemy to be its on and not follow that "chunk" movement. It's really hard to explain but basically I am trying to make snake like pattern. When the first enemy in the "chain" reaches the right of the screen it goes down and then turns left and the enemies behind it follow the pattern when they reach the sides of the screen. Currently, I have my attempt which for some reason only lowers the side enemies and moves in the chunk formation. <Code Omitted> This is the code that is giving me all the trouble, the rest seem to work perfectly and shouldn't be causing any problems.

I am using this code in my car parkinge game, on the actual car to inform the actor to stop at a specific co-ordinate, to update the score and to end the game. <Code Omitted> I want to add an object just before the game ends, can I use something as simple as: <Code Omitted> or can you only use that in the world

where do people find there background music for greenfoot?

I'm making a game, and the character is going to be permanently in the center of the world. How can I make it that the actor turns in the direction of the mouse?

edit: sorry for the incorrect title Hi everyone, I'm relatively new to java so I need some help by coding my first scenario. The main part is based on the "Boids" (simulation of a flock of birds) but I'm trying to improve this code in some ways. Right now I'm working on implementing birth and death of the birds. I'd like to have one new bird (birth) on every ten birds (so a reproduction rate of 1 "child" per 10 birds) and a death rate of five percent (one death per 20 birds). My idea was to get the whole amount of birds with getObjects(bird.class) and then multiply this amount with 0.1 (for birth) and 0.05 (for death). At this point we would have the number of how many birds will be added to the world and how many will be remove. Now I'd thought each of these numbers could be put into a seperate while-loop like this: <Code Omitted> The same with the number of dead birds with removeObject(bird). Since that would be just the basic process, I have no idea how to really code this...Help would be appreciated :)

Hello, my problem is that I want an object moving to another object directly. Maybe this Image can help you to understand. <Image Omitted>

I have so when the user left clicks it (is supposed to) shoot a red ball directed at the mouse. This is the code for the ball actor. <Code Omitted> It only seems to shoot at either 90, 45, or 0 degree angles. Any reason?

I have all i need for a Snake game but I'm having difficulty creating the array so that the tail follows the head. <Code Omitted> This part in SnakeHead adds a SnakeBody <Code Omitted> This code adds a SnakeBod next to SnakeHead but because I don't have an array so the body bits pile up behind the head. HELP :(

Greetings, I am doing a trebuchet simulation and am wondering if I can change the pivot point of an actor. Or if someone could suggest another way so it doesn't rotate the whole arm. Thanks, BaC

A thought that I had was that rather than do my usual for pressing keys: <Code Omitted> I could just keep a List of keys pressed. Can "List" only contain Objects, or can it contain Strings? If it can't contain Strings, is this idea logical using an array? Also, if this idea is more trouble than just keeping a variable for each key I need to track (not many now, just more for future reference)?