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trace->fraction

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r00k Joined: 13 Nov 2004 Posts: 483 |

Posted: Mon Jul 19, 2010 9:48 am Post subject: trace->fraction |

I was messing around with this in SV_RecursiveHullCheck

Code:
if (trace->fraction <= p1f) { Con_DPrintf("SV_RecursiveHullCheck: trace->fraction <= p1f\n"); return false; }

and noticed that after a memset (&trace, 0, sizeof(trace));
like in void TraceLine (vec3_t start, vec3_t end, vec3_t impact)
the above condition fubar'd the chase_active code.
Which led me to initialize trace.fraction = 1; whenever i started a trace. Now is this good practice or just paranoia?
(BTW, it's 4:50am and i've been up all night so my brain is melting)

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Spike Joined: 05 Nov 2004 Posts: 944 Location: UK |

Posted: Mon Jul 19, 2010 10:11 am Post subject: |

recursivehullcheck does not initialise the trace, you need to do that in the caller. Initialising fraction to 1 will cause it to go the full distance when it starts solid. It won't affect anything if it actually hits a wall. _________________
What's a signature?

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