pink_doom.misc package¶

Submodules¶

Fixed point, 32bit as 16.16.

pink_doom.misc.fixed.fixed_div(a, b)[source]¶: Divides two fixed point numbers.

pink_doom.misc.fixed.fixed_div2(a, b)[source]¶

Divide two fixed point numbers.

Used for case when we need to do floating point arithmetic.

pink_doom.misc.fixed.fixed_mul(a, b)[source]¶: Multiplies two fixed point numbers.

Lookup tables.

pink_doom.misc.tables.fine_sine¶

Sine lookup.

Guess what, serves as cosine, too. Remarkable thing is, how to use BAMs with this?

pink_doom.misc.tables.fine_tangent¶

Tangents LUT.

Should work with BAM fairly well (12 of 16bit, effectively, by shifting).

pink_doom.misc.tables.slope_div(num, den)[source]¶

Perform slope division.

Called by pink_doom.rendering.point_to_angle().

pink_doom.misc.tables.tan_to_angle¶

ArcTan LUT.

Maps tan(angle) to angle fast.

Miscellaneous.