1

/* $Id$ */

     2

     3

/** @file autoreplace_func.h Functions related to autoreplacing. */

     4

     5

#ifndef AUTOREPLACE_FUNC_H

     6

#define AUTOREPLACE_FUNC_H

     7

     8

#include "autoreplace_type.h"

     9

#include "company_base.h"

    10

    11

/**

    12

 * Remove all engine replacement settings for the company.

    13

 * @param  erl The renewlist for a given company.

    14

 * @return The new renewlist for the company.

    15

 */

    16

void RemoveAllEngineReplacement(EngineRenewList *erl);

    17

    18

/**

    19

 * Retrieve the engine replacement in a given renewlist for an original engine type.

    20

 * @param  erl The renewlist to search in.

    21

 * @param  engine Engine type to be replaced.

    22

 * @return The engine type to replace with, or INVALID_ENGINE if no

    23

 * replacement is in the list.

    24

 */

    25

EngineID EngineReplacement(EngineRenewList erl, EngineID engine, GroupID group);

    26

    27

/**

    28

 * Add an engine replacement to the given renewlist.

    29

 * @param erl The renewlist to add to.

    30

 * @param old_engine The original engine type.

    31

 * @param new_engine The replacement engine type.

    32

 * @param flags The calling command flags.

    33

 * @return 0 on success, CMD_ERROR on failure.

    34

 */

    35

CommandCost AddEngineReplacement(EngineRenewList *erl, EngineID old_engine, EngineID new_engine, GroupID group, uint32 flags);

    36

    37

/**

    38

 * Remove an engine replacement from a given renewlist.

    39

 * @param erl The renewlist from which to remove the replacement

    40

 * @param engine The original engine type.

    41

 * @param flags The calling command flags.

    42

 * @return 0 on success, CMD_ERROR on failure.

    43

 */

    44

CommandCost RemoveEngineReplacement(EngineRenewList *erl, EngineID engine, GroupID group, uint32 flags);

    45

    46

/**

    47

 * Remove all engine replacement settings for the given company.

    48

 * @param c the company.

    49

 */

    50

static inline void RemoveAllEngineReplacementForCompany(Company *c)

    51

{

    52

	RemoveAllEngineReplacement(&c->engine_renew_list);

    53

}

    54

    55

/**

    56

 * Retrieve the engine replacement for the given company and original engine type.

    57

 * @param c company.

    58

 * @param engine Engine type.

    59

 * @return The engine type to replace with, or INVALID_ENGINE if no

    60

 * replacement is in the list.

    61

 */

    62

static inline EngineID EngineReplacementForCompany(const Company *c, EngineID engine, GroupID group)

    63

{

    64

	return EngineReplacement(c->engine_renew_list, engine, group);

    65

}

    66

    67

/**

    68

 * Check if a company has a replacement set up for the given engine.

    69

 * @param c Company.

    70

 * @param  engine Engine type to be replaced.

    71

 * @return true if a replacement was set up, false otherwise.

    72

 */

    73

static inline bool EngineHasReplacementForCompany(const Company *c, EngineID engine, GroupID group)

    74

{

    75

	return EngineReplacementForCompany(c, engine, group) != INVALID_ENGINE;

    76

}

    77

    78

/**

    79

 * Add an engine replacement for the company.

    80

 * @param c Company.

    81

 * @param old_engine The original engine type.

    82

 * @param new_engine The replacement engine type.

    83

 * @param flags The calling command flags.

    84

 * @return 0 on success, CMD_ERROR on failure.

    85

 */

    86

static inline CommandCost AddEngineReplacementForCompany(Company *c, EngineID old_engine, EngineID new_engine, GroupID group, uint32 flags)

    87

{

    88

	return AddEngineReplacement(&c->engine_renew_list, old_engine, new_engine, group, flags);

    89

}

    90

    91

/**

    92

 * Remove an engine replacement for the company.

    93

 * @param c Company.

    94

 * @param engine The original engine type.

    95

 * @param flags The calling command flags.

    96

 * @return 0 on success, CMD_ERROR on failure.

    97

 */

    98

static inline CommandCost RemoveEngineReplacementForCompany(Company *c, EngineID engine, GroupID group, uint32 flags)

    99

{

   100

	return RemoveEngineReplacement(&c->engine_renew_list, engine, group, flags);

   101

}

   102

   103

bool CheckAutoreplaceValidity(EngineID from, EngineID to, CompanyID company);

   104

   105

#endif /* AUTOREPLACE_FUNC_H */