how can I create this AI effect?

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thinkdigital

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Posted: 30th Mar 2004 05:05

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I'm making a game where two tanks have a stand-off in an arena. The player is object #9, and the enemy is object #13.

Is there a way I can simply have object 13 face the player? I don't mean set the object orientation or anything. I just want object 13 to face the player object (#9), no matter which way the player is actually facing. Static line of sight won't work; I'm not using static collision boxes. How can it be done?

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zircher

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Posted: 30th Mar 2004 07:17

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Do a little research and search the various threads in this forum. The question has been asked before and several solutions are available.
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The admiral

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Posted: 30th Mar 2004 09:10

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point object command

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Emperor Baal

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Posted: 30th Mar 2004 16:47

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Use the point object command, just like Admiral said. But you should use this:

Point object 13, object position x(9),object position y(13),object position z(9)

if you use that one, the tank will not "x" rotate and will stay on the ground.

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Cyberflame

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Posted: 30th Mar 2004 17:16

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@Emperor Baal
Why, does that work?

DANGIT NEO, YOU CHANGED THE CODE AND NOW THE MATRIX WONT TEXTURE RIGHT.

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zircher

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Posted: 30th Mar 2004 18:13

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It works because you tell object 13 to look at object 9, but look at the same level as object 13. That way object 13 does not pitch or roll to look at object 9's elevation. It just looks in object 9's direction (sans elevation.)
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thinkdigital

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Posted: 30th Mar 2004 23:52

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Thanks guys (must have overlooked that one...) That's just what I needed to know

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Phaelax

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Posted: 31st Mar 2004 12:48

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atanfull(), check it out.

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zircher

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Posted: 31st Mar 2004 18:41

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Aye, knowing the math is good. I'm something of a math phobe (either that or my brain is wired for geometry and not trig/calculus), go figure as to why I'm a professional programmer.

Anyway, having the math functions is useless unless you know how to apply them. Care to provide some example code perhaps with some comments as to why the functions are used the way they are?
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thinkdigital

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Posted: 1st Apr 2004 06:37 Edited at: 3rd Apr 2004 03:13

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P.S. - I finished the game:

http://darkbasic.thegamecreators.com/?m=forum_view&t=28957&b=5