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Please refrain from creating non-constructive posts. davmac might reply with something like this:

nvm

The code I gave was supposed to be in your world subclass -- not in your new Hud actor subclass. In fact, the code as given will work in your world subclass without any changes. If you create a basic Actor subclass for HUD objects, make it a very basic class, like this: <Code Omitted>and change my line 5 to: <Code Omitted>Yes. That first line of code in this post is the entire class code.

It sure does sound weird. It is not the behavior of a bullet to shoot a bullet. That behavior belongs to that of the shooter. The usual behavior of the bullet is to fly through the air until a target is reached or until it goes 'beyond' the end of the world (rather, reaches the edge of the world). Sometimes, instead of the bullet having the behavior to 'reach a target', the target will consume the bullet and lose health or die. Th

Sorry guys, I found I didn't use the if statement correctly, instead of if (Ground = true) it is if (Ground == true)

good job.

To be sure, check the documentation. For code in an Actor subclass, refer to the Actor class documentation, where you will find the 'getWorld' method that returns a World object; then, check the World class documentation, where you will find the 'addObject' method. You will always be able to follow this pattern for any 'dot' operated statement (each part returns an object reference or a value; and for any object reference, you can refer to the documenta

Thanks! sorry for being a total noob, I am trying to make a physics engine

it looks like it is trying to call out to both the greenfoot.org site as well as yours - we are getting a security Exception of some sort. if you want to go a sub frame route that would be doable - you could possibly also use a dynamic script tag - or maybe the classes can be extracted and added to a dummy project - basically make a fake project with same class names and then patch in the classes you want over the dummy ones.

Constantly check for obstacles (walls) and keep off them. Refer to the Actor class documentation and see what methods are available for accomplishing this task.

'showText' is a method of world, not actor. (Just in case this is used in an Actor subclass, I can't see this in your code snippet.) In front of the word "Bullets" you need another double quote. <Code Omitted>

Apparently, it is used to step, pixel by pixel (or, rather, cell by cell), through the entire move distance. The horizontal and vertical movements are also done individually. By doing so, the object actor will stop moving in either direction upon intersecting a Wall object and no backing off is required (although, backing up once could still be added when a Wall object is contacted to prevent any intersection with the Wall object).

YOU CAN ALSO USE SOMETHING LIKE THIS FOR COLLISION AND WHEN YOU WHAT TO MOVE THE CHARACTER TO DIFFERNET DIRECTION WITHTOUT PASSING THROUGHT CHARACTERS SUCH AT THE WALL.