From d4e0c0f9b818120286369b33b1bdb5eb6ece7a83 Mon Sep 17 00:00:00 2001
From: number Zero <silverunicorn2011@yandex.ru>
Date: Mon, 13 Feb 2017 19:31:43 +0300
Subject: Content_mapblock.cpp: Refactor

---
 src/content_mapblock.h | 124 +++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 121 insertions(+), 3 deletions(-)

(limited to 'src/content_mapblock.h')

diff --git a/src/content_mapblock.h b/src/content_mapblock.h
index bb1e129da..c8425024f 100644
--- 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 blendLight(const v3f &vertex_pos, video::SColor tile_color);
+	video::SColor blendLight(const v3f &vertex_pos, const v3f &vertex_normal, video::SColor tile_color);
+
+	void useTile(int index, bool disable_backface_culling);
+	void useDefaultTile(bool set_color = true);
+	TileSpec getTile(const v3s16 &direction);
+
+// 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
-- 
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