Fix crash calculating light level for blood splats

bradharding · bradharding · commit cd15520e8784 · 2026-01-31T17:13:00.000+11:00
diff --git a/src/r_things.c b/src/r_things.c
@@ -1243,7 +1243,8 @@ static void R_AddBloodSplats(void)
             for (bloodsplat_t *splat = bloodsplat_blocklinks[y * bmapwidth + x]; splat; splat = splat->bnext)
             {
                 sector_t    *sector = splat->sector;
-                const short lightlevel = (sector->floorlightsec ? sector->floorlightsec->lightlevel : sector->lightlevel);
+                const short lightlevel = BETWEEN(0, (sector->floorlightsec ? sector->floorlightsec->lightlevel :
+                                sector->lightlevel), 255);
 
                 if (lightlevel != prevlightlevel)
                 {

Original file line number	Diff line number	Diff line change
`@@ -1243,7 +1243,8 @@ static void R_AddBloodSplats(void)`
`1243`	`1243`	`for (bloodsplat_t splat = bloodsplat_blocklinks[y bmapwidth + x]; splat; splat = splat->bnext)`
`1244`	`1244`	`{`
`1245`	`1245`	`sector_t *sector = splat->sector;`
`1246`		`- const short lightlevel = (sector->floorlightsec ? sector->floorlightsec->lightlevel : sector->lightlevel);`
	`1246`	`+ const short lightlevel = BETWEEN(0, (sector->floorlightsec ? sector->floorlightsec->lightlevel :`
	`1247`	`+ sector->lightlevel), 255);`
`1247`	`1248`
`1248`	`1249`	`if (lightlevel != prevlightlevel)`
`1249`	`1250`	`{`