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Title: One character close to other respons problem
Post by: geork on Wed 27/05/2009 22:00:52

Hey All!
I'm trying to trigger an event when one character gets close to the other (say about, 5x and 5y away). I tried the "IsCollidingWithChar" method:

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                if(cChar1.IsCollidingWithChar(cEgo) == 1)//tried to also put in numbers like 50 etc

but one character just walks round the other. I also tried the "AreThingsOverlapping", but that seems to only work with objects.
Is there a way to solve this?
Thanks ;)

Title: Re: One character close to other respons problem
Post by: Khris on Wed 27/05/2009 23:29:37

AreThingsOverlapping() should work, just keep in mind to pass the characters' IDs:

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if (AreThingsOverlapping(player.ID, cGuy.ID)) { ...
Since it does a rectangular check, it doesn't work well for checking the distance though.

I think .IsCollidingWithChar checks the BlockingWidth/Height of the two characters. So if both characters are .Solid, this might never be true.

The arguably best way is calculating the distance of their positions:

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bool CloseTo(this Character*, Character c, int dist) {
  int x = this.x - c.x, y = this.y - c.y;
  return x*x + y*y <= dist*dist;
}

// inside rep_ex
  if (player.CloseTo(cGuy, 5)) {
    ...

Title: Re: One character close to other respons problem
Post by: Wonkyth on Wed 27/05/2009 23:38:07

You could probably do something with SSHes PixelPerfect Collision Detection module, I had a look at it recently, and it probably wouldn't take much retrofitting to get it to do that.

Title: Re: One character close to other respons problem
Post by: Trent R on Thu 28/05/2009 00:22:17

Quote from: wonkyth on Wed 27/05/2009 23:38:07
You could probably do something with SSHes PixelPerfect Collision Detection module, I had a look at it recently, and it probably wouldn't take much retrofitting to get it to do that.

But Pixel Perfect is literally Pixel Perfect, and therefore a lot slower. Besides, it's already based off of the existing functions.

But our good old friend Pythagoras is the easiest and best solution.

~Trent

Title: Re: One character close to other respons problem
Post by: geork on Thu 28/05/2009 01:06:51

Thanks guys!
it works now, my myyysticcc prrroooojjjeeccct!!! thx for all the help :)

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AGS Support => Beginners' Technical Questions => Topic started by: geork on Wed 27/05/2009 22:00:52