Car turn question - GameCreators Forum

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haliop

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Posted: 24th Nov 2013 13:17

Hi...
So building a small educational game about road safety
Trying to set a good road turning system but honestly I'm trying but it just not right
Any suggestions ??

Ty for your time

http://forum.thegamecreators.com/?m=forum_view&t=198467&b=22

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haliop

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Posted: 24th Nov 2013 18:10

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Anyone ?

All I have so far is just rotateobjectlocalx I tried to multiply it with the car speed but could not get it right ...

http://forum.thegamecreators.com/?m=forum_view&t=198467&b=22

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Ancient Lady

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Joined: 17th Mar 2004

Location: Anchorage, Alaska, USA

Posted: 24th Nov 2013 18:14

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I suppose this is a case where we need to see the code that you are trying that isn't giving you the results that you want. It is very hard to offer suggestions on just an idea and the statement that it isn't working right.

Cheers,
Ancient Lady
AGK Community Tester and AppGameKit Master

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Fallout

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Location: Basingstoke, England

Posted: 24th Nov 2013 19:11 Edited at: 24th Nov 2013 19:16

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Here's a very basic top down car control example. I'm typing this on an iPad, so no idea if its syntactically correct. It assumes a top down view, with the camera looking down at a car object you've already made. It also assumes a constant sync rate so it doesn't go stupidly fast.

+ Code Snippet

Speed# = 0
Maxspeed# = 10
Acceleration# = 1
Turnspeed# = 1

Do
   // handle speed
   If getrawkeystate(38) = 1 //up key
      Speed# = speed# + acceleration#
      If speed# > maxspeed#
         Speed# = maxspeed#
      Endif
   Elseif getrawkeystate(40) = 1 //down key
      Speed# = speed# - acceleration#
      If speed# < 0
         Speed# = 0
      Endif
   Endif

   //handle turning
   Angle# = getobjectangley(carObj)
   If getrawkeystate(37) = 1 // left key
      Angle# = angle# - turnspeed#
   Elseif getrawkeystate(39) = 1 // key right
      Angle# = angle# + turnspeed#
   Endif

   //move and turn car object
   Moveobjectlocalz(carObj,speed#)
   Setobjectrotation(carObj,0,angle#,0)

   Sync()
Loop