From: Rudolf Polzer <divverent@xonotic.org>
Date: Mon, 9 Mar 2015 12:28:55 +0000 (+0100)
Subject: Make sure the number of lightning beam segments is bounded.
X-Git-Tag: xonotic-v0.8.1~105
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=87930231058825dc3bfe0a757199b55cfafba437;p=xonotic%2Fxonotic-data.pk3dir.git

Make sure the number of lightning beam segments is bounded.

Otherwise, beam list overflow and infinite loops.
---

diff --git a/qcsrc/client/effects.qc b/qcsrc/client/effects.qc
index df6884657..7e0f1c6c5 100644
--- a/qcsrc/client/effects.qc
+++ b/qcsrc/client/effects.qc
@@ -46,7 +46,9 @@ void cl_effects_lightningarc(vector from, vector to,float seglength,float drifts
     if(length < 1)
         return;
 
-    steps      = floor(length / seglength);
+    // Use at most 16 te_lightning1 segments, as these eat up beam list segments.
+    // TODO: Change this to R_BeginPolygon code, then we no longer have this limit.
+    steps      = min(16, floor(length / seglength));
     if(steps < 1)
     {
         te_lightning1(world,from,to);