From d5029958b9017ad89775bc4f68c4de3db603e618 Mon Sep 17 00:00:00 2001
From: kwolekr <mirrorisim@gmail.com>
Date: Sat, 22 Dec 2012 00:34:35 -0500
Subject: Readded and optimized mapgen V6

---
 src/mapgen.h | 101 +++++++++++++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 92 insertions(+), 9 deletions(-)

(limited to 'src/mapgen.h')

diff --git a/src/mapgen.h b/src/mapgen.h
index d6e932ca0..76ae73c52 100644
--- a/src/mapgen.h
+++ b/src/mapgen.h
@@ -32,8 +32,17 @@ class Biome;
 //struct BlockMakeData;
 class MapBlock;
 class ManualMapVoxelManipulator;
+class VoxelManipulator;
 class INodeDefManager;
 
+
+enum BiomeType
+{
+	BT_NORMAL,
+	BT_DESERT
+};
+
+
 struct BlockMakeData {
 	bool no_op;
 	ManualMapVoxelManipulator *vmanip;
@@ -48,7 +57,81 @@ struct BlockMakeData {
 	~BlockMakeData();
 };
 
+
 class Mapgen {
+public:
+
+	int seed;
+	int water_level;
+
+	bool generating;
+	int id;
+
+
+	//virtual Mapgen(BiomeDefManager *biomedef, int mapgenid=0, u64 seed=0);
+	//virtual ~Mapgen();
+	virtual void makeChunk(BlockMakeData *data) {};
+
+	//Legacy functions for Farmesh (pending removal)
+	static bool get_have_beach(u64 seed, v2s16 p2d);
+	static double tree_amount_2d(u64 seed, v2s16 p);
+	static s16 find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision);
+};
+
+
+class MapgenV6 : public Mapgen {
+public:
+	//ManualMapVoxelManipulator &vmanip;
+
+	int ystride;
+	v3s16 csize;
+
+	v3s16 node_min;
+	v3s16 node_max;
+
+	Noise *noise_terrain_base;
+	Noise *noise_terrain_higher;
+	Noise *noise_steepness;
+	Noise *noise_height_select;
+	Noise *noise_trees;
+	Noise *noise_mud;
+	Noise *noise_beach;
+	Noise *noise_biome;
+	Noise *noise_cave;
+
+	float *map_terrain_base;
+	float *map_terrain_higher;
+	float *map_steepness;
+	float *map_height_select;
+	float *map_trees;
+	float *map_mud;
+	float *map_beach;
+	float *map_biome;
+	float *map_cave;
+
+	bool use_smooth_biome_trans;
+
+	MapgenV6(int mapgenid=0, u64 seed=0);
+	~MapgenV6();
+
+	void makeChunk(BlockMakeData *data);
+
+
+	static s16 find_ground_level(VoxelManipulator &vmanip, v2s16 p2d, INodeDefManager *ndef);
+	static s16 find_stone_level(VoxelManipulator &vmanip, v2s16 p2d, INodeDefManager *ndef);
+	void make_tree(ManualMapVoxelManipulator &vmanip, v3s16 p0, bool is_apple_tree, INodeDefManager *ndef);
+	double tree_amount_2d(u64 seed, v2s16 p);
+	bool block_is_underground(u64 seed, v3s16 blockpos);
+	double base_rock_level_2d(u64 seed, v2s16 p);
+	s16 find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision);
+	double get_mud_add_amount(u64 seed, v2s16 p);
+	bool get_have_beach(u64 seed, v2s16 p2d);
+	BiomeType get_biome(u64 seed, v2s16 p2d);
+	u32 get_blockseed(u64 seed, v3s16 p);
+};
+
+
+class MapgenV7 : public Mapgen {
 public:
 	BlockMakeData *data;
 	ManualMapVoxelManipulator *vmanip;
@@ -59,8 +142,8 @@ public:
 	int zstride;
 
 	v3s16 csize;
-	int seed;
-	int water_level;
+	//int seed;
+	//int water_level;
 
 	Noise *noise_terrain;
 	Noise *noise_bgroup;
@@ -88,23 +171,23 @@ public:
 	MapNode n_water;
 	MapNode n_lava;
 
-	Mapgen(BiomeDefManager *biomedef, int mapgenid=0, u64 seed=0);
-	Mapgen(BiomeDefManager *biomedef, int mapgenid, u64 seed,
+	MapgenV7(BiomeDefManager *biomedef, int mapgenid=0, u64 seed=0);
+	MapgenV7(BiomeDefManager *biomedef, int mapgenid, u64 seed,
 		   NoiseParams *np_terrain, NoiseParams *np_bgroup,
 		   NoiseParams *np_heat,    NoiseParams *np_humidity);
-	void initMapgen(BiomeDefManager *biomedef, int mapgenid, u64 seed,
+	void init(BiomeDefManager *biomedef, int mapgenid, u64 seed,
 			   NoiseParams *np_terrain, NoiseParams *np_bgroup,
 			   NoiseParams *np_heat,    NoiseParams *np_humidity);
-	~Mapgen();
+	~MapgenV7();
 
 	void makeChunk(BlockMakeData *data);
 	void updateLiquid(v3s16 node_min, v3s16 node_max);
 	void updateLighting(v3s16 node_min, v3s16 node_max);
 
 	//Legacy functions for Farmesh (pending removal)
-	static bool get_have_beach(u64 seed, v2s16 p2d);
-	static double tree_amount_2d(u64 seed, v2s16 p);
-	static s16 find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision);
+//	static bool get_have_beach(u64 seed, v2s16 p2d);
+//	static double tree_amount_2d(u64 seed, v2s16 p);
+//	static s16 find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision);
 };
 
 class EmergeManager {
-- 
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