szdytom
b6656f5023
- Introduced a new biome system with various biome types and properties. - Implemented terrain generation using Perlin noise to create diverse landscapes. - Added examples for basic tilemap generation and biome analysis. - Created helper functions for displaying tiles and biomes in the console. - Enhanced the TileMap class to support chunk-based tile management. - Developed a PerlinNoise class for generating smooth noise patterns. - Updated generation configuration to include climate parameters for biomes. - Implemented error handling for out-of-bounds access in TileMap. Signed-off-by: szdytom <szdytom@qq.com>
119 lines
3.1 KiB
C++
119 lines
3.1 KiB
C++
#ifndef TILEMAP_GENERATION_H
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#define TILEMAP_GENERATION_H
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#include "biome.h"
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#include "chunk.h"
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#include "noise.h"
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#include "tilemap.h"
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#include <array>
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#include <cstdint>
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#include <vector>
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namespace istd {
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struct GenerationConfig {
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std::uint64_t seed = 0; // Seed for random generation
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// Climate noise parameters
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double temperature_scale = 0.005; // Scale for temperature noise
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double humidity_scale = 0.007; // Scale for humidity noise
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// Base terrain parameters (used as fallback)
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double scale = 0.02;
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int octaves = 4;
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double persistence = 0.5;
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// Legacy thresholds (for compatibility)
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double water_threshold = 0.3;
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double sand_threshold = 0.4;
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double wood_threshold = 0.7;
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double mountain_threshold = 0.8;
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};
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// Terrain generator class that manages the generation process
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class TerrainGenerator {
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private:
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GenerationConfig config_;
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PerlinNoise terrain_noise_;
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PerlinNoise temperature_noise_;
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PerlinNoise humidity_noise_;
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// Biome data for current generation (discarded after completion)
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std::vector<std::vector<std::array<std::array<BiomeType, 4>, 4>>>
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chunk_biomes_;
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public:
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/**
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* @brief Construct a terrain generator with the given configuration
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* @param config Generation configuration
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*/
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explicit TerrainGenerator(const GenerationConfig &config);
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/**
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* @brief Generate terrain for the entire tilemap
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* @param tilemap The tilemap to generate into
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*/
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void generate_map(TileMap &tilemap);
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private:
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/**
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* @brief Generate biome data for all chunks
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* @param map_size Number of chunks per side
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*/
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void generate_biomes(std::uint8_t map_size);
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/**
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* @brief Generate terrain for a single chunk
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* @param tilemap The tilemap to modify
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* @param chunk_x Chunk X coordinate
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* @param chunk_y Chunk Y coordinate
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*/
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void generate_chunk(
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TileMap &tilemap, std::uint8_t chunk_x, std::uint8_t chunk_y
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);
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/**
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* @brief Generate terrain for a sub-chunk with specific biome
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* @param tilemap The tilemap to modify
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* @param chunk_x Chunk X coordinate
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* @param chunk_y Chunk Y coordinate
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* @param sub_pos Sub-chunk position within the chunk
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* @param biome The biome type for this sub-chunk
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*/
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void generate_subchunk(
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TileMap &tilemap, std::uint8_t chunk_x, std::uint8_t chunk_y,
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const SubChunkPos &sub_pos, BiomeType biome
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);
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/**
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* @brief Get climate values at a global position
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* @param global_x Global X coordinate
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* @param global_y Global Y coordinate
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* @return Pair of (temperature, humidity) in range [0,1]
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*/
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std::pair<double, double> get_climate(
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double global_x, double global_y
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) const;
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/**
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* @brief Determine tile type based on noise value and biome properties
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* @param noise_value Terrain noise value [0,1]
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* @param properties Biome properties to use
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* @return The appropriate tile type
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*/
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Tile determine_tile_type(
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double noise_value, const BiomeProperties &properties
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) const;
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};
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/**
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* @brief Generate a tilemap using the new biome-based system
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* @param tilemap The tilemap to generate into
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* @param config Configuration for generation
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*/
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void map_generate(TileMap &tilemap, const GenerationConfig &config);
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} // namespace istd
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#endif
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