hr::changes_t Struct Reference

Public Member Functions
void	init (bool ch)
void	commit ()
void	rollback (int pos=0)
void	ccell (cell *c)
template<class T >
void	value_set (T &what, T value)
template<class T >
void	value_add (T &what, T step)
template<class T >
void	value_inc (T &what)
template<class T >
void	value_keep (T &what)
template<class T , class U , class V >
void	map_value (map< T, U > &vmap, V &key)
void	at_commit (reaction_t act)
void	at_rollback (reaction_t act)

Public Attributes
vector< reaction_t >	rollbacks
vector< reaction_t >	commits
bool	on
bool	checking

Detailed Description

A structure to keep track of changes made during the player movement. This is a singleton object, hr::changes.

Member Function Documentation

init()

void hr::changes_t::init ( bool  ch )

inline

Start keeping track of changes, perform changes. init(false) if you intend to commit the changes (if successful), or init(true) if you just want to check whether the move would be successful, without performing it if it is.

commit()

void hr::changes_t::commit ( )

inline

Commit the changes. Should only be called after init(false).

rollback()

void hr::changes_t::rollback ( int  pos = 0 )

inline

Rollback the changes. Should only be called after init(true).

ccell()

void hr::changes_t::ccell ( cell *  c )

inline

The changes to cell c will be rolled back when rollback() is called.

value_set()

template<class T >

void hr::changes_t::value_set ( T &  what, T  value  )

inline

Set the value of what to value. This change will be rolled back if necessary.

value_add()

template<class T >

void hr::changes_t::value_add ( T &  what, T  step  )

inline

Add step to the value of what. This change will be rolled back if necessary.

value_keep()

template<class T >

void hr::changes_t::value_keep ( T &  what )

inline

Any change to the value of what will be rolled back if necessary.

map_value()

template<class T , class U , class V >

void hr::changes_t::map_value ( map< T, U > &  vmap, V &  key  )

inline

Like value_keep but for maps.

at_commit()

void hr::changes_t::at_commit ( reaction_t  act )

inline

Perform the given action on commit.

See also

LATE

at_rollback()

void hr::changes_t::at_rollback ( reaction_t  act )

inline

Perform the given action on rollback.

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The documentation for this struct was generated from the following file:

• pcmove.cpp