Fix alpha for liquid nodes (#5494)

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

diff --git a/src/content_mapblock.h b/src/content_mapblock.h
index bb1e129daa0b690fc77f907a3c5e1c066f84ce7c..310e38e7cbf284168296357ad5cef9ef378f877a 100644 (file)
--- a/src/content_mapblock.h
+++ b/src/content_mapblock.h
@@ -19,11 +19,129 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #ifndef CONTENT_MAPBLOCK_HEADER
 #define CONTENT_MAPBLOCK_HEADER
+#include "util/numeric.h"
+#include "nodedef.h"
+#include <IMeshManipulator.h>
 
 struct MeshMakeData;
 struct MeshCollector;
-void mapblock_mesh_generate_special(MeshMakeData *data,
-               MeshCollector &collector);
 
-#endif
+struct LightFrame
+{
+       f32 lightsA[8];
+       f32 lightsB[8];
+};
+
+class MapblockMeshGenerator
+{
+public:
+       MeshMakeData *data;
+       MeshCollector *collector;
+
+       INodeDefManager *nodedef;
+       scene::ISceneManager *smgr;
+       scene::IMeshManipulator *meshmanip;
+
+// options
+       bool enable_mesh_cache;
+
+// current node
+       v3s16 blockpos_nodes;
+       v3s16 p;
+       v3f origin;
+       MapNode n;
+       const ContentFeatures *f;
+       u16 light;
+       LightFrame frame;
+       video::SColor color;
+       TileSpec tile;
+       float scale;
+
+// lighting
+       void getSmoothLightFrame();
+       u16 blendLight(const v3f &vertex_pos);
+       video::SColor blendLightColor(const v3f &vertex_pos);
+       video::SColor blendLightColor(const v3f &vertex_pos, const v3f &vertex_normal);
+
+       void useTile(int index, bool disable_backface_culling);
+       void useDefaultTile(bool set_color = true);
+       void getTile(const v3s16 &direction, TileSpec &tile);
+
+// face drawing
+       void drawQuad(v3f *vertices, const v3s16 &normal = v3s16(0, 0, 0));
+
+// cuboid drawing!
+       void drawCuboid(const aabb3f &box, TileSpec *tiles, int tilecount,
+               const u16 *lights , const f32 *txc);
+       void generateCuboidTextureCoords(aabb3f const &box, f32 *coords);
+       void drawAutoLightedCuboid(aabb3f box, const f32 *txc = NULL,
+               TileSpec *tiles = NULL, int tile_count = 0);
+
+// liquid-specific
+       bool top_is_same_liquid;
+       TileSpec tile_liquid;
+       TileSpec tile_liquid_top;
+       content_t c_flowing;
+       content_t c_source;
+       video::SColor color_liquid_top;
+       struct NeighborData {
+               f32 level;
+               content_t content;
+               bool is_same_liquid;
+               bool top_is_same_liquid;
+       };
+       NeighborData liquid_neighbors[3][3];
+       f32 corner_levels[2][2];
 
+       void prepareLiquidNodeDrawing(bool flowing);
+       void getLiquidNeighborhood(bool flowing);
+       void resetCornerLevels();
+       void calculateCornerLevels();
+       f32 getCornerLevel(int i, int k);
+       void drawLiquidSides(bool flowing);
+       void drawLiquidTop(bool flowing);
+
+// raillike-specific
+       // name of the group that enables connecting to raillike nodes of different kind
+       static const std::string raillike_groupname;
+       int raillike_group;
+       bool isSameRail(v3s16 dir);
+
+// plantlike-specific
+       PlantlikeStyle draw_style;
+       v3f offset;
+       int rotate_degree;
+       bool random_offset_Y;
+       int face_num;
+
+       void drawPlantlikeQuad(float rotation, float quad_offset = 0,
+               bool offset_top_only = false);
+
+// firelike-specific
+       void drawFirelikeQuad(float rotation, float opening_angle,
+               float offset_h, float offset_v = 0.0);
+
+// drawtypes
+       void drawLiquidNode(bool flowing);
+       void drawGlasslikeNode();
+       void drawGlasslikeFramedNode();
+       void drawAllfacesNode();
+       void drawTorchlikeNode();
+       void drawSignlikeNode();
+       void drawPlantlikeNode();
+       void drawFirelikeNode();
+       void drawFencelikeNode();
+       void drawRaillikeNode();
+       void drawNodeboxNode();
+       void drawMeshNode();
+
+// common
+       void errorUnknownDrawtype();
+       void drawNode();
+
+public:
+       MapblockMeshGenerator(MeshMakeData *input, MeshCollector *output);
+       void generate();
+};
+
+#endif