rubidium@8212: /* $Id$ */
rubidium@8212: 
rubidium@8212: /** @file autoreplace_base.h Base class for autoreplaces/autorenews. */
rubidium@8212: 
rubidium@8212: #ifndef AUTOREPLACE_BASE_H
rubidium@8212: #define AUTOREPLACE_BASE_H
rubidium@8212: 
rubidium@8212: #include "oldpool.h"
rubidium@8212: #include "autoreplace_type.h"
rubidium@8212: 
frosch@10127: typedef uint16 EngineRenewID;
frosch@10127: 
rubidium@8212: /**
rubidium@8212:  * Memory pool for engine renew elements. DO NOT USE outside of engine.c. Is
rubidium@8212:  * placed here so the only exception to this rule, the saveload code, can use
rubidium@8212:  * it.
rubidium@8212:  */
rubidium@8212: DECLARE_OLD_POOL(EngineRenew, EngineRenew, 3, 8000)
rubidium@8212: 
rubidium@8212: /**
rubidium@8212:  * Struct to store engine replacements. DO NOT USE outside of engine.c. Is
rubidium@8212:  * placed here so the only exception to this rule, the saveload code, can use
rubidium@8212:  * it.
rubidium@8212:  */
rubidium@8212: struct EngineRenew : PoolItem<EngineRenew, EngineRenewID, &_EngineRenew_pool> {
rubidium@8212: 	EngineID from;
rubidium@8212: 	EngineID to;
rubidium@8212: 	EngineRenew *next;
rubidium@8212: 	GroupID group_id;
rubidium@8212: 
rubidium@8212: 	EngineRenew(EngineID from = INVALID_ENGINE, EngineID to = INVALID_ENGINE) : from(from), to(to), next(NULL) {}
rubidium@8212: 	~EngineRenew() { this->from = INVALID_ENGINE; }
rubidium@8212: 
rubidium@8212: 	inline bool IsValid() const { return this->from != INVALID_ENGINE; }
rubidium@8212: };
rubidium@8212: 
rubidium@8212: #define FOR_ALL_ENGINE_RENEWS_FROM(er, start) for (er = GetEngineRenew(start); er != NULL; er = (er->index + 1U < GetEngineRenewPoolSize()) ? GetEngineRenew(er->index + 1U) : NULL) if (er->IsValid())
rubidium@8212: #define FOR_ALL_ENGINE_RENEWS(er) FOR_ALL_ENGINE_RENEWS_FROM(er, 0)
rubidium@8212: 
rubidium@8212: #endif /* AUTOREPLACE_BASE_H */