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Question by isaknoj · Apr 25, 2020 at 12:58 PM · physicsvelocityjumpphysics2d

Best solution for 100% accurate jumps.

Hi,

Im building a runner-game, and am having trouble making my character jump in an accurate way. I want him to jump 50 units and move him by changing the rigidbody2d velocity.


  • When my time step in Physics 2d is 0.2, he jumps 48.4 units (error 1.6)

  • When my time step in Physics 2d is 0.1, he jumps 49.2 units (error 0.8)

  • When my time step in Physics 2d is 0.05, he jumps 49.6 units (error 0.4)


So in other words: when i halve the time step, the error halves as well.

Could someone please explain this to me, as well as provide a solution for it (that is not to change time step to 0.0001)

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