enemy AI activate switch - GameCreators Forum

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pandaHunter

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Joined: 9th Mar 2009

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Posted: 9th Mar 2009 15:52

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Hi, im new to the forum. I am attempting to write a script for an enemy to run over to a switch and activate it. I am able to activate the switch( with a change to the switches script, testing if its activated and setting ifused if it is)

I can also run toward the switch, however i cannot test for when the entity reaches the switch. I also would like the entity to activate the switch after they reach it.

Heres the code:

+ Code Snippet

;Artificial Intelligence Script

;Header

desc          = face forward

;Triggers

:waypointstate=0:animate=2,waypointstart
:waypointstate=3:animate=2,waypointnext
:waypointstate=4:animate=2,waypointrandom
:waypointstate=5:animate=2,waypointreverse
:nearactivatable=0:settarget,activatetarget=2,animate=1,state=0

:state=0:state=1
:state=1,plrcannotbeseen,shotdamage=5:setframe=14,state=5
:state=1,plrcanbeseen:state=6
:state=1,noiseheard=5:rotateheadrandom=85

:state=2:waypointstop,rotatetoplr,state=3,shootplr
:state=3:animate=1,waypointstart,state=0

:state=4,plrcanbeseen=46:settarget,state=2
:state=4,random=20:animate=2,waypointstart,state=1

:state=5:incframe=14
:state=5,frameatend=14:runfpi=destroy/leavecorpse.fpi

:state=6:settargetname=switch_guardRunTo,rotatetotarget,state=8

:state=8:state=9,movetotarget

:state=9,reachtarget:activatetarget=1
;End of Script

some things to note, i think reachtarget may not work here as i would wish, as i have the switch on a wall so the entity never really reaches the switch.

I have also tried this with raycast=20 50 instead of reachtarget and it still does not work.

I have tried movefore instead of movetotarget and try a raycast everytime before movefore again but doesn't work.

Also i realise that the script cannot access states 2,3 and 4, im just trying to get the switch part to work.

any help would be greatly appreciated.

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Plystire

21

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Joined: 18th Feb 2003

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Posted: 9th Mar 2009 23:19

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Why not set up a waypoint system leading to the switch. When the entity reaches the end of the waypoint line, you'll know that they reached the switch.

The one and only,

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pandaHunter

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Joined: 9th Mar 2009

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Posted: 9th Mar 2009 23:46

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well i was wanting to have the entity patrol an area(using a series of waypoints) and when they spotted the player head for the alarm/switch.

But i will try redoing the script with waypoints.

Could you tell me why replacing "reachtarget" with "raycast=20 50" wouldn't work for me? it just didn't seem to return true when the entity was approaching a wall.

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pandaHunter

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Posted: 10th Mar 2009 00:27

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ok i have managed to factor in a waypoint. basically use one waypoint, and when he spots the player moves to that waypoint, targets the switch, activates switch.

+ Code Snippet

;Artificial Intelligence Script

;Header

desc          = face forward

;Triggers

:state=0:state=1
:state=1,plrcannotbeseen,shotdamage=5:setframe=14,state=5
:state=1,plrcanbeseen:state=6
:state=1,noiseheard=5:rotateheadrandom=85

:state=2:waypointstop,rotatetoplr,state=3,shootplr
:state=3:animate=1,waypointstart,state=0

:state=4,plrcanbeseen:settarget,state=2
:state=4,random=20:animate=2,waypointstart,state=1

:state=5:incframe=14
:state=5,frameatend=14:runfpi=destroy/leavecorpse.fpi

:state=6:waypointstart,state=8

:state=8,waypointstate=5:settargetname=switch_guardRunTo,activatetarget=1
;End of Script

but i would still like to have a patrolling guard that moves to the switch when they spot the player.

Any suggestions/pointers how i could script that?

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pandaHunter

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Posted: 10th Mar 2009 01:10

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for posterities sake heres my latest version of code

+ Code Snippet

;Artificial Intelligence Script

;Header

desc          = face forward

;Triggers

:state=1,waypointstate=0:animate=2,waypointstart
:state=1,waypointstate=3:animate=2,waypointnext
:state=1,waypointstate=4:animate=2,waypointrandom
:state=1,waypointstate=5:animate=2,waypointreverse
:state=1,nearactivatable=0:settarget,activatetarget=2,animate=1,state=0

:plrcannotbeseen,shotdamage=5:setframe=14,state=5

:state=0:state=1
:state=1,plrcanbeseen,plrdistwithin=500:state=6
:state=1,noiseheard=5:rotateheadrandom=85

:state=2:waypointstop,rotatetoplr,state=3,shootplr
:state=3:animate=1,waypointstart,state=0

:state=4,plrcanbeseen:settarget,state=2
:state=4,random=20:animate=2,waypointstart,state=1

:state=5:incframe=14
:state=5,frameatend=14:runfpi=destroy/leavecorpse.fpi

:state=6:timerstart,state=7

:state=7,timergreater=300:waypointreverse,state=8

:state=8,waypointstate=3:waypointnext
:state=8,waypointstate=5:settargetname=switch_guardRunTo,activatetarget=1
;End of Script

allowing the entity i was using to head to a switch and activate it. But it doesn't seem very reusable/versatile. It suits the setup on my map, but if i create another switch and guard elsewhere i will probably have to write a completely new script.

If anyone can suggest i better way to deal with waypoints, i'd be greatful.

also thanks to Plystire for suggesting waypoints.

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FPSC Classic Scripts / enemy AI activate switch