Settings: Add get_flags API for mapgen flags (mg_flags, mgv6_spflags, ...) (#9284)

Unified flags handling in C++ and Lua Settings API
     -> Reading only, for now. Writing can be implemented later, if needed.
API function to read the currently active flags
     -> was impossible from Lua

Co-authored-by: Wuzzy <wuzzy2@mail.ru>

1 files changed, 6 insertions, 1 deletions

diff --git a/src/mapgen/mapgen.h b/src/mapgen/mapgen.h
index 1473d41a6..dc325c791 100644
--- a/src/mapgen/mapgen.h
+++ b/src/mapgen/mapgen.h
@@ -124,7 +124,9 @@ struct MapgenParams {
 	u64 seed = 0;
 	s16 water_level = 1;
 	s16 mapgen_limit = MAX_MAP_GENERATION_LIMIT;
-	u32 flags = MG_CAVES | MG_LIGHT | MG_DECORATIONS | MG_BIOMES;
+	// Flags set in readParams
+	u32 flags = 0;
+	u32 spflags = 0;
 
 	BiomeParams *bparams = nullptr;
 
@@ -133,6 +135,8 @@ struct MapgenParams {
 
 	virtual void readParams(const Settings *settings);
 	virtual void writeParams(Settings *settings) const;
+	// Default settings for g_settings such as flags
+	virtual void setDefaultSettings(Settings *settings) {};
 
 	s32 getSpawnRangeMax();
 
@@ -214,6 +218,7 @@ public:
 		EmergeManager *emerge);
 	static MapgenParams *createMapgenParams(MapgenType mgtype);
 	static void getMapgenNames(std::vector<const char *> *mgnames, bool include_hidden);
+	static void setDefaultSettings(Settings *settings);
 
 private:
 	// isLiquidHorizontallyFlowable() is a helper function for updateLiquid()