Noise: Prevent unittest crash caused by division by zero

[oweals/minetest.git] / src / mapgen_flat.cpp

diff --git a/src/mapgen_flat.cpp b/src/mapgen_flat.cpp
index 95fb3541258d13f4474f1e9e50191a22e7636f14..9ae9d208c70468884ec229d85572b24af5000c79 100644 (file)
--- a/src/mapgen_flat.cpp
+++ b/src/mapgen_flat.cpp
@@ -189,7 +189,7 @@ void MapgenFlat::makeChunk(BlockMakeData *data)
 
        // Init biome generator, place biome-specific nodes, and build biomemap
        biomegen->calcBiomeNoise(node_min);
-       MgStoneType stone_type = generateBiomes();
+       MgStoneType stone_type = generateBiomes(water_level - 1);
 
        if (flags & MG_CAVES)
                generateCaves(stone_surface_max_y, large_cave_depth);
@@ -199,10 +199,12 @@ void MapgenFlat::makeChunk(BlockMakeData *data)
 
        // Generate the registered decorations
        if (flags & MG_DECORATIONS)
-               m_emerge->decomgr->placeAllDecos(this, blockseed, node_min, node_max);
+               m_emerge->decomgr->placeAllDecos(this, blockseed,
+                       node_min, node_max, water_level - 1);
 
        // Generate the registered ores
-       m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
+       m_emerge->oremgr->placeAllOres(this, blockseed,
+               node_min, node_max, water_level - 1);
 
        // Sprinkle some dust on top after everything else was generated
        dustTopNodes();
@@ -228,7 +230,7 @@ s16 MapgenFlat::generateTerrain()
        MapNode n_stone(c_stone);
        MapNode n_water(c_water_source);
 
-       v3s16 em = vm->m_area.getExtent();
+       const v3s16 &em = vm->m_area.getExtent();
        s16 stone_surface_max_y = -MAX_MAP_GENERATION_LIMIT;
        u32 ni2d = 0;