2009
02-17

XNA Series – A Simple Particle System

Sometimes you need to create a an effect like smoke or an explosion. This is when you can turn to a particle system. You can think of a particle system as an emitter. It emits points on given velociti.... Read More >

2009
02-17

XNA Series – Refactoring GameObject

By now, our GameObject and GameAgent classes are getting out of hand, we have kept expanding them and now they are not very cohesive. There are several problems I see as I look at the code in front of.... Read More >

2009
02-17

XNA Series – Modular AI – Flee and Arrival

To continue with our modular AI discussion, we will first look at a "Flee" operation. Fleeing is the opposite of seeking. Rather than turning towards the current position of an object and moving forwa.... Read More >

2009
02-17

XNA Series – Showing the Mouse

Here is a quick one for today. You may have noticed that when using your mouse with XNA that it disappears when entering the game area. This is because XNA wants you to determine what your mouse looks.... Read More >

2009
02-17

XNA Series – Modular AI – Waypoints

So in our last AI lesson we talked about 3 methods, TurnTowards, MoveForward and Seek. Where TurnTowards turned our rotation towards a point by an maximum amount, Move Forward moved us at a certain di.... Read More >

2009
02-17

XNA Series – Modular AI

In our last installment, we created a very specific AI interaction. We moved toward another object and then as we approached, we slowed down. In today's post we will look at breaking that out into mor.... Read More >

2009
02-17

XNA Series – Basic AI

For today's post I want to take our first step towards 'AI'. Now please understand this and the following posts are not truly AI, but at least get us .... Read More >

2009
02-17

XNA Series – Animation Part 2

In our last installment we created a sprite based animation and today I want to extend that a little. We are going to add a velocity to our character and scale his animation based on it. This is actua.... Read More >

2009
02-17

XNA Series – Animation Part 1

Now, we may not always be using static images as our characters in our games, and sometimes we may want to have an animation, like when our character .... Read More >

2009
02-17

XNA – Simulating Gravity

Now that we have talked a little about vectors and acceleration and such, lets put together a simple 'game' that takes a few of these things together. We will create a Game Object like we have been do.... Read More >