Noise: Prevent unittest crash caused by division by zero

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

diff --git a/src/content_mapblock.cpp b/src/content_mapblock.cpp
index 8eedade6e5cf981626cb819bfe7d7b0a4334c229..935240dae72e119b967d7b757b415ce6b4cb5f0a 100644 (file)
--- a/src/content_mapblock.cpp
+++ b/src/content_mapblock.cpp
@@ -1288,14 +1288,21 @@ void MapblockMeshGenerator::errorUnknownDrawtype()
 
 void MapblockMeshGenerator::drawNode()
 {
+       // skip some drawtypes early
+       switch (f->drawtype) {
+               case NDT_NORMAL:   // Drawn by MapBlockMesh
+               case NDT_AIRLIKE:  // Not drawn at all
+               case NDT_LIQUID:   // Drawn by MapBlockMesh
+                       return;
+               default:
+                       break;
+       }
+       origin = intToFloat(p, BS);
        if (data->m_smooth_lighting)
                getSmoothLightFrame();
        else
                light = getInteriorLight(n, 1, nodedef);
        switch (f->drawtype) {
-               case NDT_NORMAL:            break; // Drawn by MapBlockMesh
-               case NDT_AIRLIKE:           break; // Not drawn at all
-               case NDT_LIQUID:            break; // Drawn by MapBlockMesh
                case NDT_FLOWINGLIQUID:     drawLiquidNode(); break;
                case NDT_GLASSLIKE:         drawGlasslikeNode(); break;
                case NDT_GLASSLIKE_FRAMED:  drawGlasslikeFramedNode(); break;
@@ -1324,7 +1331,6 @@ void MapblockMeshGenerator::generate()
        for (p.X = 0; p.X < MAP_BLOCKSIZE; p.X++) {
                n = data->m_vmanip.getNodeNoEx(blockpos_nodes + p);
                f = &nodedef->get(n);
-               origin = intToFloat(p, BS);
                drawNode();
        }
 }