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#pragma once
#include "compat/defs.hpp"
#include <memory>
namespace floormat
{
struct object;
struct Ns;
enum class script_lifecycle : uint8_t
{
no_init, initializing, created, destroying, torn_down, COUNT,
};
struct base_script
{
fm_DECLARE_DELETED_COPY_ASSIGNMENT(base_script);
fm_DECLARE_DELETED_MOVE_ASSIGNMENT(base_script);
base_script() noexcept;
virtual ~base_script() noexcept;
static StringView state_name(script_lifecycle x);
};
enum class script_destroy_reason : uint8_t
{
quit, // game is being shut down
kill, // object is being deleted from the gameworld
unassign, // script is unassigned from object
COUNT,
};
template<typename S, typename Obj>
class Script final
{
S* ptr;
script_lifecycle state;
void _assert_state(script_lifecycle s, const char* file, int line);
public:
Script();
~Script() noexcept;
// [no-init] -> do_create() -> [initializing]
// [initializing] -> do_initialize() -> [created]
// [created] -> call() -> [created]
// [created] -> do_reassign() -> [no-init]
// [created] -> do_destroy_pre() -> [destroying]
// [destroying] -> do_finish_destroy() -> [torn-down]
// [torn-down] -> do_ensure_torn_down() -> [torn-down]
// * -> do_error_unwind() -> [torn-down]
// [torn-down] -> ~script()
S* operator->();
void do_create(S* ptr);
void do_initialize(const std::shared_ptr<Obj>& obj);
void do_reassign(S* ptr, const std::shared_ptr<Obj>& obj);
void do_destroy_1(const std::shared_ptr<Obj>& obj);
void do_destroy_pre(const std::shared_ptr<Obj>& obj);
void do_finish_destroy();
void do_ensure_torn_down();
void do_error_unwind();
};
} // namespace floormat
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