Error 7008 - Object does not exist at line 133

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Kakarzejin

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Joined: 6th Jun 2012

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Posted: 6th Jun 2012 13:49

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Hey there, I've just tried to implement collision detection for a third-person 2D sidescroller and it's come up with the above error, which corresponds to these lines:

+ Code Snippet

if object collision (1,11)
   xrotate camera 90
   move camera 1
   xrotate camera 0
endif

Objects 1 and 11 are previously declared within seperate subroutines which run before the above code does.

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TheComet

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Joined: 18th Oct 2007

Location: I`m under ur bridge eating ur goatz.

Posted: 6th Jun 2012 15:15 Edited at: 6th Jun 2012 15:16

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Can we see those subroutines?

Also, the code above can be simplified to:

+ Code Snippet

if object collision( 1 , 11 )
   position camera camera position x() , camera position y() + 1 , camera position z()
endif

TheComet

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Chris Tate

DBPro Master

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Location: London, England

Posted: 6th Jun 2012 17:14

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Following on from TheComet, if you download Matrix1 utilities, you can use the 'Move Camera Up' command.

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Kakarzejin

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Posted: 6th Jun 2012 23:46

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Here you go:

gosub _load_game

rem Setup all objects for game
gosub _setup_game

rem Game loop
do

rem Control game elements
 gosub _control_player
 gosub _control_gun
 gosub _control_health
 gosub _control_fuel
 rem gosub _control_enemies
 rem gosub _hack_camera
 gosub _gravity

rem In case of restart
 if restart=1
   restart=0
   set bsp collision off 1
   rotate camera 0,0,0
   position camera 0,0,0
   set bsp camera collision 1,0,0.75,0
   fuel = 1000
   health = 1000
   BulletTimeout = 0
   if levelno = 1
     gosub _setup_level_1
   rem if levelno = 2
     rem gosub _setup_level_2
   rem if levelno = 3
     rem gosub setup_level_3
   rem if levelno = 4
     rem gosub setup_level_4
   endif
 endif
 rem Update screen
 sync

rem End loop
loop

rem End program
end

_load_game:

rem Load player model
 PlayerObj = 11 : load object "models/hero/ROOMDEMO.x", PlayerObj

rem Load enemies
 EneBugBotObj = 21 : load object "models/enemy/BugBot.3ds", EneBugBotObj

return

_setup_game:

rem Setup camera
 set camera range 0.1,5000
 set camera fov 50
 autocam off

rem Setup sky model
 SkyObj = 51 : load object "models\sky\am.x",SkyObj
 set object SkyObj,1,0,0,0,0,0,0
 scale object SkyObj,50,50,50

rem Setup player
 lock object on PlayerObj
 scale object PlayerObj, 8,8,10
 rotate object PlayerObj, 270,90,0
 position object PlayerObj, 0, -4, 32

rem Create bullet
 BulletObj = 12 : make object cube BulletObj, 1
 hide object BulletObj

rem Trigger player initialisation
 levelno = 1
 restart = 1

return

+ Code Snippet

gosub _load_game

rem Setup all objects for game
gosub _setup_game

rem Game loop
do

 rem Control game elements
 gosub _control_player
 gosub _control_gun
 gosub _control_health
 gosub _control_fuel
 rem gosub _control_enemies
 rem gosub _hack_camera
 gosub _gravity


 rem In case of restart
 if restart=1
   restart=0
   set bsp collision off 1
   rotate camera 0,0,0
   position camera 0,0,0
   set bsp camera collision 1,0,0.75,0
   fuel = 1000
   health = 1000
   BulletTimeout = 0
   if levelno = 1
     gosub _setup_level_1
   rem if levelno = 2
     rem gosub _setup_level_2
   rem if levelno = 3
     rem gosub setup_level_3
   rem if levelno = 4
     rem gosub setup_level_4
   endif
 endif
 rem Update screen
 sync

rem End loop
loop

rem End program
end

_load_game:

 rem Load player model
 PlayerObj = 11 : load object "models/hero/ROOMDEMO.x", PlayerObj

 rem Load enemies
 EneBugBotObj = 21 : load object "models/enemy/BugBot.3ds", EneBugBotObj

return

_setup_game:

 rem Setup camera
 set camera range 0.1,5000
 set camera fov 50
 autocam off

 rem Setup sky model
 SkyObj = 51 : load object "models\sky\am.x",SkyObj
 set object SkyObj,1,0,0,0,0,0,0
 scale object SkyObj,50,50,50

 rem Setup player
 lock object on PlayerObj
 scale object PlayerObj, 8,8,10
 rotate object PlayerObj, 270,90,0
 position object PlayerObj, 0, -4, 32

 rem Create bullet
 BulletObj = 12 : make object cube BulletObj, 1
 hide object BulletObj

 rem Trigger player initialisation
 levelno = 1
 restart = 1


return

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Hodgey

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Joined: 10th Oct 2009

Location: Australia

Posted: 7th Jun 2012 10:45

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Quote: "Objects 1 and 11 are previously declared within seperate subroutines which run before the above code does."

Where is object 1 loaded?

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Kakarzejin

12

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Joined: 6th Jun 2012

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Posted: 7th Jun 2012 23:54

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+ Code Snippet

_setup_level_1:

 rem Load DBO world and sky model
   load effect "media/LightMap.fx",1,0
   load object "media/level_03.dbo",1,3
   set object effect 1,1
   scale object EneBugBotObj, 600,600,600
   position object EneBugBotObj, 2,2,0
   rotate object EneBugBotObj, 0,90,0

return

The DBO is used as the world environment, and Object 11 as the player character.

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zeroSlave

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Joined: 13th Jun 2009

Location: Springfield

Posted: 8th Jun 2012 05:12 Edited at: 8th Jun 2012 05:13

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I believe that your _setup_level_1 is not loading until after your collision code is running.

+ Code Snippet

 
gosub _control_player
 gosub _control_gun
 gosub _control_health
 gosub _control_fuel
 rem gosub _control_enemies
 rem gosub _hack_camera
 gosub _gravity

processes before:

+ Code Snippet

 if restart=1
   restart=0
   set bsp collision off 1
   rotate camera 0,0,0
   position camera 0,0,0
   set bsp camera collision 1,0,0.75,0
   fuel = 1000
   health = 1000
   BulletTimeout = 0
   if levelno = 1
     gosub _setup_level_1
   rem if levelno = 2
     rem gosub _setup_level_2
   rem if levelno = 3
     rem gosub setup_level_3
   rem if levelno = 4
     rem gosub setup_level_4
   endif
 endif

in your DO-LOOP.

Try switching them like so:

+ Code Snippet

do
 rem In case of restart
 if restart=1
   restart=0
   set bsp collision off 1
   rotate camera 0,0,0
   position camera 0,0,0
   set bsp camera collision 1,0,0.75,0
   fuel = 1000
   health = 1000
   BulletTimeout = 0
   if levelno = 1
     gosub _setup_level_1
   rem if levelno = 2
     rem gosub _setup_level_2
   rem if levelno = 3
     rem gosub setup_level_3
   rem if levelno = 4
     rem gosub setup_level_4
   endif
 endif

 rem Control game elements
 gosub _control_player
 gosub _control_gun
 gosub _control_health
 gosub _control_fuel
 rem gosub _control_enemies
 rem gosub _hack_camera
 gosub _gravity

 rem Update screen
 sync

rem End loop
loop

Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.

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