fracture_pattern.hpp

 
#pragma once
#include <array>
#include <cstdint>
#include <optional>
#include <string_view>
 
namespace physics {
 
enum class FracturePattern : uint8_t {
  brittle,     
  granular,    
  fibrous,     
  ductile,     
};
 
inline constexpr std::array<std::string_view, 4> k_fracture_pattern_names {"brittle", "granular", "fibrous", "ductile"};
 
[[nodiscard]]
constexpr auto fracturePatternName(FracturePattern pattern) -> std::string_view {
  auto index = static_cast<size_t>(pattern);
  return index < k_fracture_pattern_names.size() ? k_fracture_pattern_names[index] : std::string_view {};
}
 
[[nodiscard]]
constexpr auto fracturePatternFromName(std::string_view name) -> std::optional<FracturePattern> {
  for (size_t i = 0; i < k_fracture_pattern_names.size(); ++i) {
    if (k_fracture_pattern_names[i] == name) {
      return static_cast<FracturePattern>(i);
    }
  }
  return std::nullopt;
}

[[nodiscard]]
constexpr auto shatters(FracturePattern pattern) -> bool {
  return pattern != FracturePattern::ductile;
}
 
}