72 lines
1.6 KiB
C++
72 lines
1.6 KiB
C++
#ifndef TILEMAP_BIOME_H
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#define TILEMAP_BIOME_H
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#include <cstdint>
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#include <string_view>
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namespace istd {
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// Biome types based on temperature and humidity
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enum class BiomeType : std::uint8_t {
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SnowyPeeks = 0, // Cold & Dry
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SnowyPlains = 1, // Cold & Moderate
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FrozenOcean = 2, // Cold & Wet
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Plains = 3, // Temperate & Dry
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Forest = 4, // Temperate & Moderate
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Ocean = 5, // Temperate & Wet
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Desert = 6, // Hot & Dry
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Savanna = 7, // Hot & Moderate
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LukeOcean = 8, // Hot & Wet
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};
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enum class BiomeTemperature : std::uint8_t {
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Cold = 0,
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Temperate = 1,
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Hot = 2,
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};
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enum class BiomeHumidity : std::uint8_t {
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Dry = 0,
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Moderate = 1,
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Wet = 2,
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};
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// Biome properties for terrain generation
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struct BiomeProperties {
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// Biome name for debugging
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std::string_view name;
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// Base terrain ratios (0.0 - 1.0)
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double water_ratio;
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double ice_ratio;
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double sand_ratio;
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double land_ratio;
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// Noise parameters for base terrain
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int base_octaves = 3;
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double base_persistence = 0.5;
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};
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// Get biome properties for terrain generation
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const BiomeProperties &get_biome_properties(BiomeType biome);
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// Determine biome type based on temperature and humidity
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BiomeType determine_biome(double temperature, double humidity);
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// Sub-chunk position within a chunk (4x4 grid of 16x16 sub-chunks)
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struct SubChunkPos {
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std::uint8_t sub_x; // 0-3
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std::uint8_t sub_y; // 0-3
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constexpr SubChunkPos(std::uint8_t x, std::uint8_t y): sub_x(x), sub_y(y) {}
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};
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// Get the starting tile coordinates for a sub-chunk
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std::pair<std::uint8_t, std::uint8_t> subchunk_to_tile_start(
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const SubChunkPos &pos
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);
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} // namespace istd
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#endif
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