Noise: Prevent unittest crash caused by division by zero

[oweals/minetest.git] / src / mapblock_mesh.h

diff --git a/src/mapblock_mesh.h b/src/mapblock_mesh.h
index 25c699e1cab24d2ba3520e13d0f698795d24ba5b..e2a66fbb909a9041972c7a6293af82ae9f47719e 100644 (file)
--- a/src/mapblock_mesh.h
+++ b/src/mapblock_mesh.h
@@ -23,7 +23,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "irrlichttypes_extrabloated.h"
 #include "client/tile.h"
 #include "voxel.h"
-#include "util/cpp11_container.h"
 #include <map>
 
 class Client;
@@ -40,10 +39,9 @@ struct MinimapMapblock;
 struct MeshMakeData
 {
        VoxelManipulator m_vmanip;
-       v3s16 m_blockpos;
-       v3s16 m_crack_pos_relative;
-       bool m_smooth_lighting;
-       bool m_show_hud;
+       v3s16 m_blockpos = v3s16(-1337,-1337,-1337);
+       v3s16 m_crack_pos_relative = v3s16(-1337,-1337,-1337);
+       bool m_smooth_lighting = false;
 
        Client *m_client;
        bool m_use_shaders;
@@ -108,7 +106,12 @@ public:
 
        scene::IMesh *getMesh()
        {
-               return m_mesh;
+               return m_mesh[0];
+       }
+
+       scene::IMesh *getMesh(u8 layer)
+       {
+               return m_mesh[layer];
        }
 
        MinimapMapblock *moveMinimapMapblock()
@@ -132,10 +135,8 @@ public:
        void updateCameraOffset(v3s16 camera_offset);
 
 private:
-       scene::IMesh *m_mesh;
+       scene::IMesh *m_mesh[MAX_TILE_LAYERS];
        MinimapMapblock *m_minimap_mapblock;
-       Client *m_client;
-       video::IVideoDriver *m_driver;
        ITextureSource *m_tsrc;
        IShaderSource *m_shdrsrc;
 
@@ -150,20 +151,23 @@ private:
        // Animation info: cracks
        // Last crack value passed to animate()
        int m_last_crack;
-       // Maps mesh buffer (i.e. material) indices to base texture names
-       UNORDERED_MAP<u32, std::string> m_crack_materials;
+       // Maps mesh and mesh buffer (i.e. material) indices to base texture names
+       std::map<std::pair<u8, u32>, std::string> m_crack_materials;
 
        // Animation info: texture animationi
-       // Maps meshbuffers to TileSpecs
-       UNORDERED_MAP<u32, TileSpec> m_animation_tiles;
-       UNORDERED_MAP<u32, int> m_animation_frames; // last animation frame
-       UNORDERED_MAP<u32, int> m_animation_frame_offsets;
+       // Maps mesh and mesh buffer indices to TileSpecs
+       // Keys are pairs of (mesh index, buffer index in the mesh)
+       std::map<std::pair<u8, u32>, TileLayer> m_animation_tiles;
+       std::map<std::pair<u8, u32>, int> m_animation_frames; // last animation frame
+       std::map<std::pair<u8, u32>, int> m_animation_frame_offsets;
 
        // Animation info: day/night transitions
        // Last daynight_ratio value passed to animate()
        u32 m_last_daynight_ratio;
-       // For each meshbuffer, stores pre-baked colors of sunlit vertices
-       std::map<u32, std::map<u32, video::SColor > > m_daynight_diffs;
+       // For each mesh and mesh buffer, stores pre-baked colors
+       // of sunlit vertices
+       // Keys are pairs of (mesh index, buffer index in the mesh)
+       std::map<std::pair<u8, u32>, std::map<u32, video::SColor > > m_daynight_diffs;
 
        // Camera offset info -> do we have to translate the mesh?
        v3s16 m_camera_offset;
@@ -176,7 +180,7 @@ private:
 */
 struct PreMeshBuffer
 {
-       TileSpec tile;
+       TileLayer layer;
        std::vector<u16> indices;
        std::vector<video::S3DVertex> vertices;
        std::vector<video::S3DVertexTangents> tangent_vertices;
@@ -184,7 +188,7 @@ struct PreMeshBuffer
 
 struct MeshCollector
 {
-       std::vector<PreMeshBuffer> prebuffers;
+       std::vector<PreMeshBuffer> prebuffers[MAX_TILE_LAYERS];
        bool m_use_tangent_vertices;
 
        MeshCollector(bool use_tangent_vertices):
@@ -193,27 +197,38 @@ struct MeshCollector
        }
 
        void append(const TileSpec &material,
+                               const video::S3DVertex *vertices, u32 numVertices,
+                               const u16 *indices, u32 numIndices);
+       void append(const TileLayer &material,
                        const video::S3DVertex *vertices, u32 numVertices,
-                       const u16 *indices, u32 numIndices);
+                       const u16 *indices, u32 numIndices, u8 layernum);
        void append(const TileSpec &material,
+                               const video::S3DVertex *vertices, u32 numVertices,
+                               const u16 *indices, u32 numIndices, v3f pos,
+                               video::SColor c, u8 light_source);
+       void append(const TileLayer &material,
                        const video::S3DVertex *vertices, u32 numVertices,
-                       const u16 *indices, u32 numIndices,
-                       v3f pos, video::SColor c, u8 light_source);
+                       const u16 *indices, u32 numIndices, v3f pos,
+                       video::SColor c, u8 light_source, u8 layernum);
+       /*!
+        * Colorizes all vertices in the collector.
+        */
+       void applyTileColors();
 };
 
 /*!
- * Encodes light and color of a node.
+ * Encodes light of a node.
  * The result is not the final color, but a
  * half-baked vertex color.
+ * You have to multiply the resulting color
+ * with the node's color.
  *
  * \param light the first 8 bits are day light,
  * the last 8 bits are night light
- * \param color the node's color
  * \param emissive_light amount of light the surface emits,
  * from 0 to LIGHT_SUN.
  */
-video::SColor encode_light_and_color(u16 light, const video::SColor &color,
-       u8 emissive_light);
+video::SColor encode_light(u16 light, u8 emissive_light);
 
 // Compute light at node
 u16 getInteriorLight(MapNode n, s32 increment, INodeDefManager *ndef);
@@ -248,8 +263,10 @@ void final_color_blend(video::SColor *result,
 
 // Retrieves the TileSpec of a face of a node
 // Adds MATERIAL_FLAG_CRACK if the node is cracked
-TileSpec getNodeTileN(MapNode mn, v3s16 p, u8 tileindex, MeshMakeData *data);
-TileSpec getNodeTile(MapNode mn, v3s16 p, v3s16 dir, MeshMakeData *data);
+// TileSpec should be passed as reference due to the underlying TileFrame and its vector
+// TileFrame vector copy cost very much to client
+void getNodeTileN(MapNode mn, v3s16 p, u8 tileindex, MeshMakeData *data, TileSpec &tile);
+void getNodeTile(MapNode mn, v3s16 p, v3s16 dir, MeshMakeData *data, TileSpec &tile);
 
 #endif