szdytom
0b245e0483
- Introduced a new example `dual_noise_demo.cpp` to showcase the base and surface generation system. - Updated biome properties to include ice thresholds and surface feature parameters. - Enhanced chunk structure to support biomes for sub-chunks. - Refactored terrain generation logic to separate base terrain and surface feature generation. - Improved biome determination logic to include new biomes and their properties. - Updated tile representation to use enums for base and surface tile types. - Added detailed analysis of generated terrain and sample tile outputs in the demo. Signed-off-by: szdytom <szdytom@qq.com>
79 lines
2.0 KiB
C++
79 lines
2.0 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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Desert = 0, // Hot & Dry
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Savanna = 1, // Hot & Moderate
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TropicalRainforest = 2, // Hot & Wet
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Grassland = 3, // Temperate & Dry
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DeciduousForest = 4, // Temperate & Moderate
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TemperateRainforest = 5, // Temperate & Wet
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Tundra = 6, // Cold & Dry
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Taiga = 7, // Cold & Moderate
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FrozenOcean = 8 // Cold & Wet
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};
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// Biome properties for terrain generation
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struct BiomeProperties {
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// Base terrain thresholds (0.0 - 1.0)
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double water_threshold;
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double mountain_threshold;
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double sand_threshold;
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double ice_threshold;
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// Surface coverage thresholds (0.0 - 1.0)
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double wood_threshold;
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double snow_threshold;
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// Noise parameters for base terrain
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double base_scale;
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int base_octaves;
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double base_persistence;
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// Noise parameters for surface features
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double surface_scale;
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int surface_octaves;
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double surface_persistence;
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// Biome name for debugging
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std::string_view name;
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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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// Convert local tile coordinates to sub-chunk position
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constexpr SubChunkPos tile_to_subchunk(
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std::uint8_t local_x, std::uint8_t local_y
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) {
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return SubChunkPos(local_x / 16, local_y / 16);
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}
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// Get the starting tile coordinates for a sub-chunk
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constexpr 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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return {pos.sub_x * 16, pos.sub_y * 16};
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}
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} // namespace istd
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#endif
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