Mgv7: Limit pseudorandom caves to surface mapchunk or below

paramat · paramat · commit f1aea6b4ff7a · 2016-03-19T17:56:35.000Z
To avoid bright caves at mapchunk borders when generating mapchunks upwards
diff --git a/src/mapgen_v7.cpp b/src/mapgen_v7.cpp
@@ -912,6 +912,9 @@ void MapgenV7::generateCaves(s16 max_stone_y)
 		}
 	}
 
+	if (node_min.Y >= water_level)
+		return;
+
 	PseudoRandom ps(blockseed + 21343);
 	u32 bruises_count = ps.range(0, 2);
 	for (u32 i = 0; i < bruises_count; i++) {

Original file line number	Diff line number	Diff line change
`@@ -912,6 +912,9 @@ void MapgenV7::generateCaves(s16 max_stone_y)`
`912`	`912`	`}`
`913`	`913`	`}`
`914`	`914`
	`915`	`+ if (node_min.Y >= water_level)`
	`916`	`+ return;`
	`917`	`+`
`915`	`918`	`PseudoRandom ps(blockseed + 21343);`
`916`	`919`	`u32 bruises_count = ps.range(0, 2);`
`917`	`920`	`for (u32 i = 0; i < bruises_count; i++) {`