Time Control

Questions
1

Is there anyway for me to somehow manipulate how fast time goes in my project or like slow physics down to make it look like that time is slowing down?

Thanks in advance :slight_smile:

2

@Creator27 - the only way I know to slow things down is to build into your display routine a variable delay which you control from the system timer or just increment the delay loop variable. It could get a little jerky though especially if you have something like a logarithmic decay.

Not sure if this works with physics though as that should drive to its own timetable.

3

@Bri_G, Iā€™m not so sure what you mean. Could you possibly show me an example of what you mean?

Thanks :slight_smile:

4

i added a simple way to do this into my project -

set a parameter or global var called TIME_SCALE

and add a wrapping class for physics. body and one for your game object (craft model) and give them an update function that you call in your draw

then in the update you detect the diff in position and multiply it by TIME_SCALE and set the position to the new one -

function Body:init()
  self.prevX = 100
  self.prevY = 100
  self.body = physics.body()
  self.body.x = self.prevX 
  self.body.y = self.prevY
  self.prevAngle = 0
  self.body.angle = self.prevAngle
end

function Body:update()
   if self.body.x ~= self.prevX then
    local diff = (self.prevX - self.body.x) * TIME_SCALE 
    self.prevX = self.prevX - diff
    self.body.x = self.prevX
    if self.GameObject then
      self.GameObject.x = self.body.x
    end
  end

  if self.body.y ~= self.prevY then
    local diff = (self.prevY - self.body.y) * TIME_SCALE 
    self.prevY = self.prevY - diff
    self.body.y = self.prevY
    if self.GameObject then
      self.GameObject.y = self.body.y
    end
  end
  
  if self.body.angle ~= self.prevAngle then
    local diff = (self.prevAngle - self.body.angle) * TIME_SCALE 
    self.prevAngle = self.prevAngle - diff
    self.body.angle = self.prevAngle
    if self.GameObject then
      self.GameObject.angle = self.body.angle
    end
  end

end

and basically the same thing for anywhere you want to see timescale have an effect you would do a similar thing