Mgv5/mgv7 caves: Remove sand found in underground tunnels

Add missing check for max_stone_y to mgv5 cavegen
Tunnels now carve through sand below water_level

1 files changed, 13 insertions, 24 deletions

diff --git a/src/mapgen_v7.cpp b/src/mapgen_v7.cpp
index b5d1463db..7fe5a3848 100644
--- a/src/mapgen_v7.cpp
+++ b/src/mapgen_v7.cpp
@@ -852,32 +852,21 @@ void MapgenV7::generateCaves(int max_stone_y)
 {
 	if (max_stone_y >= node_min.Y) {
 		u32 index   = 0;
-		u32 index2d = 0;
-
-		for (s16 z = node_min.Z; z <= node_max.Z; z++) {
-			for (s16 y = node_min.Y - 1; y <= node_max.Y + 1; y++) {
-				u32 i = vm->m_area.index(node_min.X, y, z);
-				for (s16 x = node_min.X; x <= node_max.X;
-						x++, i++, index++, index2d++) {
-					float d1 = contour(noise_cave1->result[index]);
-					float d2 = contour(noise_cave2->result[index]);
-					if (d1 * d2 > 0.3) {
-						Biome *biome = (Biome *)bmgr->
-									getRaw(biomemap[index2d]);
-						content_t c = vm->m_data[i].getContent();
-						if (!ndef->get(c).is_ground_content ||
-								c == CONTENT_AIR ||
-								(y <= water_level &&
-								c != biome->c_stone &&
-								c != c_stone))
-							continue;
-
-						vm->m_data[i] = MapNode(CONTENT_AIR);
-					}
+
+		for (s16 z = node_min.Z; z <= node_max.Z; z++)
+		for (s16 y = node_min.Y - 1; y <= node_max.Y + 1; y++) {
+			u32 i = vm->m_area.index(node_min.X, y, z);
+			for (s16 x = node_min.X; x <= node_max.X; x++, i++, index++) {
+				float d1 = contour(noise_cave1->result[index]);
+				float d2 = contour(noise_cave2->result[index]);
+				if (d1 * d2 > 0.3) {
+					content_t c = vm->m_data[i].getContent();
+					if (!ndef->get(c).is_ground_content || c == CONTENT_AIR)
+						continue;
+
+					vm->m_data[i] = MapNode(CONTENT_AIR);
 				}
-				index2d -= ystride;
 			}
-			index2d += ystride;
 		}
 	}