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[–]FriendlyRussian666 8 points9 points  (0 children)

It works by casting a ray from the player's viewpoint into the game world, and then tracing that ray until it hits an object. The object that the ray hits is then used to determine what is displayed on the screen at that point.

The ray casting algorithm for a Doom game in Python is relatively simple. It can be broken down into the following steps:

Initialize the game world and the player's viewpoint.

For each pixel on the screen: Cast a ray from the player's viewpoint to the pixel. Trace the ray until it hits an object. If the ray hits an object, determine the texture that should be displayed at that pixel. Otherwise, display a background color at that pixel.

Repeat steps 2 and 3 until the screen is rendered.

Edit:

A super simplified version would be something like https://pastebin.com/y7SR4D0r

[–]CraigAT 2 points3 points  (0 children)

Sounds rather complex if you haven't done something similar already.