36 lines
695 B
C++
36 lines
695 B
C++
#include <psemek/ecs/detail/entity_list.hpp>
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namespace psemek::ecs::detail
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{
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entity_id entity_list::create(table * table, std::uint32_t row)
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{
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if (free_ids_.empty())
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allocate_ids();
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auto id = free_ids_.back();
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free_ids_.pop_back();
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entities_[id].table = table;
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entities_[id].row = row;
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return id;
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}
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void entity_list::destroy(entity_id id)
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{
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entities_[id].epoch += 1;
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free_ids_.push_back(id);
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}
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void entity_list::allocate_ids()
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{
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static constexpr std::size_t batch_size = 1024;
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auto old_size = entities_.size();
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entities_.resize(entities_.size() + batch_size);
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for (std::size_t id = entities_.size(); id --> old_size;)
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free_ids_.push_back(id);
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}
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}
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