Concatenate two behaviours

Question

So what I'm trying to do now is to make an object move in a random direction a certain distance. Then it stops, and shoots some projectiles during a determined amount of time. After this, it all starts over again, moving again and shooting after running a certain distance.

So, what I have is two separate functions: one that makes the object move and one that makes the object shoot. But I don't know how to alternate between these two functions. It seems that coroutines or state machines are an appropiate option to do this, but as a newbie I don't know how to use them properly. Specifically, having both states on a switch, I'm having problems switching them over time, so maybe there's an "appropiate" way to do this that I haven't discovered.

Any clues will be appreciated! :D

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Answer by stevethorne · Mar 20, 2014 at 06:43 PM

Sounds like you'll want to use both of these functions that you've made in the Update() loop of the MonoBehaviour. Then, just like you said, use something to switch back and fourth. Here's an example.

 float timer = 3.0f;
 float timeToMove = 3.0f;
 float timeToShoot = 1.0f;
 float shooting = false;
 
 void Update()
 {
     timer -= Time.deltaTime;
 
     if ( shooting )
     {
         Shooting();
 
         if ( timer <= 0 )
         {
             timer = timeToMove;
             shooting = false; // switch back to moving
         }
     }
     else
     {
         Moving();
 
         if ( timer <= 0 )
         {
             timer = timeToShoot;
             shooting = true; // switch back to shooting
         }
     }
 }
 
 void Moving()
 {
     // your moving function
 }
 
 void Shooting()
 {
     // your shooting function
 }

This is an example of what you can do with timers and it's done in C# but you can apply this knowledge to another approach and in js.

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Fattie · Mar 21, 2014 at 05:34 AM 1

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Steve, for beginners it's much better to master Invoke, which is one line of code

stevethorne · Apr 02, 2014 at 09:11 PM 0

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I'd have to disagree with you there. Better to understand fundamentals of programming then to rely on things that do the magic without you knowing about it.

Concatenate two behaviours

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