Moving objects in 3D space - GameCreators Forum

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Kenny77

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Joined: 7th Oct 2006

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Posted: 27th Oct 2006 02:16

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I'm trying to fully understand the concepts in the first 3D tutorial, and I'm wondering if I have commented this correctly, and what else I can add to it. Thanks

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sync on
sync rate 30
load object "f360.3DS", 1

`Game loop
do

  `setup
  `store the object's Y angle in aY#
  aY# = object angle y(1)
  `store the object's X angle in aX#
  aX# = object angle x(1)

  `player input
  `control input
  `if upkey is pressed, move object 1 up 2 world units
  if upkey()=1 then move object 1,2
  `if the leftkey is pressed, update aY# plus ten
  if leftkey()=1 then aY# = wrapvalue(aY#+10)
  `if the rightkey is pressed, update aY# minus ten
  if rightkey()=1 then aY# = wrapvalue(aY#-10)
  `if downkey is pressed, update aX# plus ten
  if downkey()=1 then aX# = wrapvalue(aX#+10)

  `rotate the sphere
  `update game internals, output the result
  `rotate object 1 around the y axis
  yrotate object 1,aY#
  `rotate object 1 sround the x axis
  xrotate object 1,aX#

  `refresh Screen
  sync
loop

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Nenohum

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Joined: 21st Sep 2006

Location: In a galaxy far, far, away.....

Posted: 27th Oct 2006 02:55

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i'm fairly new to dark basic but if your wondering if you commented it correctly that's really up to you. The comments are to remind you of what you were trying to do. You don't have to put one after each line unless you want to. like for

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`rotate the sphere
  `update game internals, output the result
  `rotate object 1 around the y axis
  yrotate object 1,aY#
  `rotate object 1 sround the x axis
  xrotate object 1,aX#

you could just put

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`rotate object around axis

or something like that.

For adding to it you could add a matrix for the groudn and texture it or add other objects and add collision with them. Tutorials on this website are a great help...at least to me.

some mornings, it just doesn't pay to gnaw through those leather straps

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Kenny77

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Posted: 27th Oct 2006 04:03

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Sorry, should of made it more clear. I was asking if I have the right idea about how this code works.

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Nenohum

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Joined: 21st Sep 2006

Location: In a galaxy far, far, away.....

Posted: 27th Oct 2006 04:12

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are you using a file that comes with dark basic or not...and are you using dark basic classic or pro.

But basically by the looks of it yeah. But it would help if you could specify what your trying to do. ex fps,rpg,etc.

Also for

+ Code Snippet

if leftkey()=1 then aY# = wrapvalue(aY#+10)
  `if the rightkey is pressed, update aY# minus ten
  if rightkey()=1 then aY# = wrapvalue(aY#-10)
  `if downkey is pressed, update aX# plus ten
  if downkey()=1 then aX# = wrapvalue(aX#+10)

it might be easier if you used

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 if leftkey()=1 then turn object left 1,.7

or something like that if that is what you are trying to do

some mornings, it just doesn't pay to gnaw through those leather straps

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