packing_strategy.hpp

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#pragma once
 
#include <bitset>
#include <optional>
#include <set>
#include <string>
#include <vector>
 
#include "porytiles/domain/packing/models/packable_tile.hpp"
#include "porytiles/domain/packing/models/packed_palette.hpp"
#include "porytiles/domain/packing/models/palette_pool.hpp"
#include "porytiles/domain/packing/models/prefilled_palette.hpp"
#include "porytiles/domain/packing/models/shape_group_metadata.hpp"
#include "porytiles/utilities/result/chainable_result.hpp"
 
namespace porytiles {
 
struct PackingInput {
    std::vector<PackableTile> tiles_{};
 
    std::vector<PackableTile> hints_{};
 
    std::set<PrefilledPalette> prefilled_pals_{};
 
    PalettePool pal_pool_;
 
    std::size_t pal_capacity_ = pal::max_size - 1;
 
    std::optional<ShapeGroupMetadata> shape_group_metadata_{};
};
 
struct PackingOutput {
    std::vector<PackedPalette> pals_;
 
    std::map<PackableTile::Id, std::size_t> tile_to_pal_;
};
 
class PackingStrategy {
  public:
    virtual ~PackingStrategy() = default;
 
    [[nodiscard]] virtual ChainableResult<PackingOutput> pack(const PackingInput &input) const = 0;
 
    [[nodiscard]] virtual std::string name() const = 0;
};
 
} // namespace porytiles