Creating A Bullet

2009-10-23T04:12:08Z

Hello,

I am having issues figuring out a way to create an object from inside of another object. More specifically, I have a player that holds a gun that needs to fire a bullet.

What I have is a main World class which contains a vector of objects. This vector will run through a loop to do all the update logic/rendering for each object.

Now, I have a basic gun object. The player class will hold a pointer to this gun class. Where I am stuck is the creation of the bullet/projectile. The player will call a function on the gun class to initialize the bullet, but I don't have any idea how to get the bullet object into the objects vector in world in order to be displayed/etc.

Any ideas? Is my classes even right?

How Do I Make Buttons That Slide In?

2009-10-27T03:10:14Z

Playing Starcraft, I was just wondering how to achieve the same effect as they do when bringing their buttons on screen. (0:20 into this video - http://www.youtube.com/watch?v=r4ijwtGCaRg).

I tried doing position.x += 5, but how do I get it to move less towards the end like how the buttons slows down?

How can we improve resolveasfixed

2009-10-22T14:22:47Z

How should resolveasfixed be changed to better meet the needs of the game development community?

Regarding the name Resolve as Fixed

2009-10-27T14:13:22Z

This name is too generic to describe any specific characteristic of games at all. A stack overflow has a connection to software development in general, which makes it suitable for that site. What was the reasoning behind the choice of 'Resolve as Fixed' as the name?

std::Map for an Image Manager

2009-10-27T02:24:05Z

Q: How would I determine if a "key" exists in a map?

Context: Im making an image manager that has a single function that takes a string paramater that is the file folder/file name of the image file.

Example: Image& Ret(string FileName)

I want it to return a reference to the image that has been stored in memory. The function will have a dual purpose of being a "setter" and "getter." The map is so the keys will be the FileName. How would I go about determining if map[FileName] exists? I tried using find() but it returns an iterator and I tried evaluating it as NULL but it didnt work, so im kind of lost as to how I would check it or if there is a better way.

Thank you! :)

ifstream in Half Life

2009-10-24T14:13:04Z

Hi,

I'm not entirely sure if anyone will know this because it's a pretty old game (yes, I know), but anyway, I have a question about coding for Half-Life 1. Basically, if I make a dll that modifies the game, and then use something like:

ifstream file_in("readme.txt");

I can read from readme.txt, provided it is in the Half-Life directory. But say I put readme.txt in a sub-directory called "game". Now, if I try the following, it won't work:

ifstream file_in("/game/readme.txt");