1 files changed, 183 insertions, 0 deletions
diff --git a/src/mapgen/mg_ore.h b/src/mapgen/mg_ore.h
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+/*
+Minetest
+Copyright (C) 2014-2016 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
+Copyright (C) 2015-2017 paramat
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <unordered_set>
+#include "objdef.h"
+#include "noise.h"
+#include "nodedef.h"
+
+class Noise;
+class Mapgen;
+class MMVManip;
+
+/////////////////// Ore generation flags
+
+#define OREFLAG_ABSHEIGHT     0x01 // Non-functional but kept to not break flags
+#define OREFLAG_PUFF_CLIFFS   0x02
+#define OREFLAG_PUFF_ADDITIVE 0x04
+#define OREFLAG_USE_NOISE     0x08
+
+enum OreType {
+	ORE_SCATTER,
+	ORE_SHEET,
+	ORE_PUFF,
+	ORE_BLOB,
+	ORE_VEIN,
+	ORE_STRATUM,
+};
+
+extern FlagDesc flagdesc_ore[];
+
+class Ore : public ObjDef, public NodeResolver {
+public:
+	static const bool NEEDS_NOISE = false;
+
+	content_t c_ore;                  // the node to place
+	std::vector<content_t> c_wherein; // the nodes to be placed in
+	u32 clust_scarcity; // ore cluster has a 1-in-clust_scarcity chance of appearing at a node
+	s16 clust_num_ores; // how many ore nodes are in a chunk
+	s16 clust_size;     // how large (in nodes) a chunk of ore is
+	s16 y_min;
+	s16 y_max;
+	u8 ore_param2;		// to set node-specific attributes
+	u32 flags = 0;          // attributes for this ore
+	float nthresh;      // threshold for noise at which an ore is placed
+	NoiseParams np;     // noise for distribution of clusters (NULL for uniform scattering)
+	Noise *noise = nullptr;
+	std::unordered_set<u8> biomes;
+
+	Ore() = default;;
+	virtual ~Ore();
+
+	virtual void resolveNodeNames();
+
+	size_t placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
+	virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
+		v3s16 nmin, v3s16 nmax, u8 *biomemap) = 0;
+};
+
+class OreScatter : public Ore {
+public:
+	static const bool NEEDS_NOISE = false;
+
+	virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
+		v3s16 nmin, v3s16 nmax, u8 *biomemap);
+};
+
+class OreSheet : public Ore {
+public:
+	static const bool NEEDS_NOISE = true;
+
+	u16 column_height_min;
+	u16 column_height_max;
+	float column_midpoint_factor;
+
+	virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
+		v3s16 nmin, v3s16 nmax, u8 *biomemap);
+};
+
+class OrePuff : public Ore {
+public:
+	static const bool NEEDS_NOISE = true;
+
+	NoiseParams np_puff_top;
+	NoiseParams np_puff_bottom;
+	Noise *noise_puff_top = nullptr;
+	Noise *noise_puff_bottom = nullptr;
+
+	OrePuff() = default;
+	virtual ~OrePuff();
+
+	virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
+		v3s16 nmin, v3s16 nmax, u8 *biomemap);
+};
+
+class OreBlob : public Ore {
+public:
+	static const bool NEEDS_NOISE = true;
+
+	virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
+		v3s16 nmin, v3s16 nmax, u8 *biomemap);
+};
+
+class OreVein : public Ore {
+public:
+	static const bool NEEDS_NOISE = true;
+
+	float random_factor;
+	Noise *noise2 = nullptr;
+
+	OreVein() = default;
+	virtual ~OreVein();
+
+	virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
+		v3s16 nmin, v3s16 nmax, u8 *biomemap);
+};
+
+class OreStratum : public Ore {
+public:
+	static const bool NEEDS_NOISE = false;
+
+	NoiseParams np_stratum_thickness;
+	Noise *noise_stratum_thickness = nullptr;
+
+	OreStratum() = default;
+	virtual ~OreStratum();
+
+	virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
+		v3s16 nmin, v3s16 nmax, u8 *biomemap);
+};
+
+class OreManager : public ObjDefManager {
+public:
+	OreManager(IGameDef *gamedef);
+	virtual ~OreManager() = default;
+
+	const char *getObjectTitle() const
+	{
+		return "ore";
+	}
+
+	static Ore *create(OreType type)
+	{
+		switch (type) {
+		case ORE_SCATTER:
+			return new OreScatter;
+		case ORE_SHEET:
+			return new OreSheet;
+		case ORE_PUFF:
+			return new OrePuff;
+		case ORE_BLOB:
+			return new OreBlob;
+		case ORE_VEIN:
+			return new OreVein;
+		case ORE_STRATUM:
+			return new OreStratum;
+		default:
+			return nullptr;
+		}
+	}
+
+	void clear();
+
+	size_t placeAllOres(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
+};