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>
48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
#ifndef ISTD_TILEMAP_NOISE_H
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#define ISTD_TILEMAP_NOISE_H
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#include <cstdint>
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#include <vector>
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namespace istd {
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class PerlinNoise {
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private:
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std::vector<int> permutation_;
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// Helper functions for Perlin noise calculation
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double fade(double t) const;
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double lerp(double t, double a, double b) const;
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double grad(int hash, double x, double y) const;
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public:
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/**
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* @brief Construct a PerlinNoise generator with the given seed
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* @param seed Random seed for noise generation
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*/
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explicit PerlinNoise(std::uint64_t seed = 0);
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/**
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* @brief Generate 2D Perlin noise value at the given coordinates
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* @param x X coordinate
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* @param y Y coordinate
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* @return Noise value between 0.0 and 1.0
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*/
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double noise(double x, double y) const;
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/**
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* @brief Generate octave noise (multiple frequencies combined)
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* @param x X coordinate
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* @param y Y coordinate
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* @param octaves Number of octaves to combine
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* @param persistence How much each octave contributes
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* @return Noise value between 0.0 and 1.0
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*/
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double octave_noise(
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double x, double y, int octaves = 4, double persistence = 0.5
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) const;
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};
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} // namespace istd
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#endif |