Questions tagged [fixed-point]
Fixed point stores numbers as a multiple of a fixed unit size. An example is how dollars are stored as cents or hundredths of a dollar. There is a fixed number (2 in this case) of fractional digits. This concept can be applied to computing to store numbers where a fixed number of bits represent fractional digits. This tag is appropriate for questions that pertain to the use of fixed point numbers in game development.
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How can I rotate a 16-bit signed integer vector?
I am trying to rotate a vector made of two signed 16-bit coordinates (-32768 to 32767). Using a LUT for sin/cos, I can use the standard method for rotating a vector:
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How can I make a reliable time-based object updating system?
So an object has a position, velocity, and is affected by gravity.
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How do fixed-point physics (engines) work?
I would think there should be an abundance of excellent articles answering this question, but my searches have come up completely empty.
I am developing an embedded graphics engine on a ...
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Recreating retro/NES style physics with intentional imprecision
Background:
I'm having a problem getting the jump curve correct for a retro platformer remake project of mine. The original game is for the NES, and the player's velocity is stored in two separate ...
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