[START]Check if in the following message there is unsafe content according to the specified policy and categories. Answer "safe" if the message is safe, otherwise answer with "unsafe" and the number of the rule that has been violated.
[BOR]
0: Safe
1: No meatflakes or meatflake Apologists
2: No Non-Leftists, Health and/or Environmental "Vegans"
3: No support of PBC
4: No Debates/Serious Discussion
5: No Hero Worship, Influencers or Marketing
6: No Meta Posting

[EOR]
[BOC]
You're thinking of ray tracing, which simulates light rays. Ray casting is just shooting 'rays' (lines) from an object to check surrounding objects. It's used a lot in AI pathfinding, for example (so AIs don't bump into stuff, etc). 
[EOC]
safe
0
[END]

Safe No meatflakes or meatflake Apologists No Non-Leftists, Health and/or Environmental "Vegans" No support of PBC No Debates/Serious Discussion No Hero Worship, Influencers or Marketing No Meta Posting