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What is perfect number to setAngle() to get 1 degrees? — Gideros Forum
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    What is perfect number to setAngle() to get 1 degrees?

    JalapenodevJalapenodev Member
    edited March 2014 in General questions
    I have now this like code:

    function onTimer(event)
    body:setAngle(body:getAngle() + 0.06981310179)
    end

    timer = Timer.new(10, 45)
    timer:addEventListener(Event.TIMER, onTimer, timer)
    timer:start()

    So it runs onTimer 45 times. It turns 180 degrees on every run, but when i run it like 200 times, the body is like 1 degrees in wrong angle, if i do it 1000 times it can be couple of degrees in wrong angle.

    So whats perfect "1 degree" number to setAngle()?
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    Comments

    • amaximovamaximov Member
      edited March 2014
      try body:setAngle(body:getAngle() + math.pi/180)

      or make a variable body.rotation = 0. then simply do body.rotation = body.rotation + 1 on each timer event, and do body:setAngle(math.rad(body.rotation))

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    • ar2rsawseenar2rsawseen Maintainer
      edited March 2014
      As those are floating numbers I don't know if you can set them so precise, but how about:
      local deg1 = math.rad(1)
 
function onTimer(event)
 body:setAngle(body:getAngle() + deg1)
 end
 
 timer = Timer.new(10, 45)
 timer:addEventListener(Event.TIMER, onTimer, timer)
 timer:start()
      Or rounding like:
      function onTimer(event)
 body:setAngle(math.rad(math.floor(math.deg(body:getAngle()) + 1)))
 end
 
 timer = Timer.new(10, 45)
 timer:addEventListener(Event.TIMER, onTimer, timer)
 timer:start()
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    • JalapenodevJalapenodev Member
      edited March 2014
      try body:setAngle(body:getAngle() + math.pi/180)

      or make a variable body.rotation = 0. then simply do body.rotation = body.rotation + 1 on each timer event, and do body:setAngle(math.rad(body.rotation))
      That first one worked just as perfect and simple I was hoping.

      Thank you!

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    • SinisterSoftSinisterSoft Maintainer
      Hold them in a variable as degrees, then when setting the rotation just turn them in to a rad at the same time - this way you can just increment your local variable by one.
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