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• MoKaLux Member

  November 2020 edited November 2020

  -- beginning of enterframe local vx, vy = self.body:getLinearVelocity() -- lots of calculation ... -- get the linear velocity again! local tvx, tvy = self.body:getLinearVelocity() local velocitychangex = vx - tvx local velocitychangey = vy - tvy local impulsex = self.body:getMass() * velocitychangex local impulsey = self.body:getMass() * velocitychangey -- impulse self.body:applyLinearImpulse(impulsex, impulsey, self.body:getWorldCenter())

  Before I was moving with setLinearVelocity and I thought that was the problem so now I use this method.

  my growING GIDEROS github repositories: https://github.com/mokalux?tab=repositories

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• MoKaLux Member

  November 2020 edited November 2020

  @antix sorry I just posted the code above, now that you pointed this I need to redo how I move the player. I will have another look at iforce tutorials and will let you know.
  My code above makes no sense but strangely it works fine.
  
  Thank you antix
  
  EDIT: I have tested with this code (game loop):<pre class="CodeBlock">

  vx = self.body:getLinearVelocity() if isleft then desiredvelx = -5 ... end local velocityxchange = desiredvelx - vx local impulsex = self.body:getMass() * velocityxchange self.body:applyLinearImpulse(impulsex, 0, self.body:getWorldCenter()) self:setPosition(self.posx, self.posy)

  With no luck the dynamic bodies still interpenetrate.
  
  PS: don't look at the naming of my variables I am just testing
  PS2: It's been days I am trying to figure this out, in my case I wanted to have some rocks fall on the player and on the ground. When the rocks have finished hurting the player and then lay on the ground I wanted the player to be able to walk over them (that was the idea).
  PS3: that's weird box2d behavior, isn't it?
  PS4: will try to post on the box2d github

  my growING GIDEROS github repositories: https://github.com/mokalux?tab=repositories

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